>>> lua-cffi 0.2.1 Extracting
gzip -d -c /home/buildroot/autobuild/instance-0/dl/lua-cffi/lua-cffi-0.2.1.tar.gz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1   -xf -
>>> lua-cffi 0.2.1 Patching
>>> lua-cffi 0.2.1 Configuring
rm -rf /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build
mkdir -p /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build
sed -e "/^\[binaries\]$/s:$::" -e "/^\[properties\]$/s:$::"         -e "s%@TARGET_CC@%/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gcc%g" -e "s%@TARGET_CXX@%/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++%g" -e "s%@TARGET_AR@%/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-gcc-ar%g" -e "s%@TARGET_STRIP@%/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-strip%g" -e "s%@TARGET_ARCH@%arm%g" -e "s%@TARGET_CPU@%arm920t%g" -e "s%@TARGET_ENDIAN@%little%g" -e "s%@TARGET_CFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-Os', '-g0', '-D_FORTIFY_SOURCE=1'%g" -e "s%@TARGET_LDFLAGS@%%g" -e "s%@TARGET_CXXFLAGS@%'-D_LARGEFILE_SOURCE', '-D_LARGEFILE64_SOURCE', '-D_FILE_OFFSET_BITS=64', '-Os', '-g0', '-D_FORTIFY_SOURCE=1'%g" -e "s%@BR2_CMAKE@%/home/buildroot/autobuild/instance-0/output-1/host/bin/cmake%g" -e "s%@PKGCONF_HOST_BINARY@%/home/buildroot/autobuild/instance-0/output-1/host/bin/pkgconf%g" -e "s%@STAGING_DIR@%/home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot%g" -e "s%@STATIC@%false%g" /home/buildroot/autobuild/instance-0/buildroot/support/misc/cross-compilation.conf.in > /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build/cross-compilation.conf
PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" CC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++"  PYTHONNOUSERSITE=y /home/buildroot/autobuild/instance-0/output-1/host/bin/meson --prefix=/usr --libdir=lib --default-library=shared --buildtype=release --cross-file=/home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build/cross-compilation.conf -Db_pie=false -Dstrip=false -Dbuild.pkg_config_path=/home/buildroot/autobuild/instance-0/output-1/host/lib/pkgconfig -Dbuild.cmake_prefix_path=/home/buildroot/autobuild/instance-0/output-1/host/lib/cmake  /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1/ /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build
The Meson build system
Version: 0.61.4
Source dir: /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1
Build dir: /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1/build
Build type: cross build
Project name: cffi-lua
Project version: 0.2.1
C++ compiler for the host machine: /home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ (gcc 4.8.3 "arm-none-linux-gnueabi-g++ (Sourcery CodeBench Lite 2014.05-29) 4.8.3 20140320 (prerelease)")
C++ linker for the host machine: /home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ ld.bfd 2.24.51.20140217
C++ compiler for the build machine: /usr/bin/g++ (gcc 6.3.0 "g++ (Debian 6.3.0-18+deb9u1) 6.3.0 20170516")
C++ linker for the build machine: /usr/bin/g++ ld.bfd 2.28
Build machine cpu family: x86_64
Build machine cpu: x86_64
Host machine cpu family: arm
Host machine cpu: arm920t
Target machine cpu family: arm
Target machine cpu: arm920t
Compiler for C++ supports arguments -Wshadow: YES 
Compiler for C++ supports arguments -Wold-style-cast: YES 
Compiler for C++ supports arguments -fvisibility=hidden: YES 
Checking for size of "void *" : 4
Has header "endian.h" : YES 
Found pkg-config: /home/buildroot/autobuild/instance-0/output-1/host/bin/pkgconf (1.6.3)
Run-time dependency lua found: YES 5.4.4
Run-time dependency libffi found: YES 3.4.2
Library dl found: YES
Has header "ffi.h" with dependency libffi: YES 
Has header "lua.hpp" with dependency lua: YES 
Configuring config.h using configuration
Computing int of "LUA_VERSION_NUM" with dependency lua: 504
Build targets in project: 1
NOTICE: Future-deprecated features used:
 * 0.56.0: {'meson.source_root', 'meson.build_root'}

cffi-lua 0.2.1

  User defined options
    Cross files            : /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build/cross-compilation.conf
    build.cmake_prefix_path: /home/buildroot/autobuild/instance-0/output-1/host/lib/cmake
    build.pkg_config_path  : /home/buildroot/autobuild/instance-0/output-1/host/lib/pkgconfig
    buildtype              : release
    default_library        : shared
    libdir                 : lib
    prefix                 : /usr
    strip                  : false
    b_pie                  : false

Found ninja-1.10.2 at /home/buildroot/autobuild/instance-0/output-1/host/bin/ninja
>>> lua-cffi 0.2.1 Building
PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin"  PYTHONNOUSERSITE=y /home/buildroot/autobuild/instance-0/output-1/host/bin/ninja  -j4  -C /home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build
ninja: Entering directory `/home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1//build'
[1/8] Compiling C++ object cffi.so.p/src_util.cc.o
In file included from ../src/util.cc:4:0:
../src/util.hh: In member function 'void util::vector<T>::setbuf(const T*, std::size_t)':
../src/util.hh:571:49: warning: declaration of 'data' shadows a member of 'this' [-Wshadow]
     void setbuf(T const *data, std::size_t len) {
                                                 ^
[2/8] Compiling C++ object cffi.so.p/src_lib.cc.o
[3/8] Compiling C++ object cffi.so.p/src_ffilib.cc.o
FAILED: cffi.so.p/src_ffilib.cc.o 
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -Icffi.so.p -I. -I.. -I/home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot/usr/include -DNDEBUG -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++1y -fno-exceptions -fno-rtti -O3 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -DCFFI_LUA_DLL -Wshadow -Wold-style-cast -fvisibility=hidden -DHAVE_CONFIG_H=1 -MD -MQ cffi.so.p/src_ffilib.cc.o -MF cffi.so.p/src_ffilib.cc.o.d -o cffi.so.p/src_ffilib.cc.o -c ../src/ffilib.cc
In file included from ../src/libffi.hh:13:0,
                 from ../src/ast.hh:10,
                 from ../src/parser.hh:5,
                 from ../src/ffilib.cc:7:
../src/util.hh: In member function 'void util::vector<T>::setbuf(const T*, std::size_t)':
../src/util.hh:571:49: warning: declaration of 'data' shadows a member of 'this' [-Wshadow]
     void setbuf(T const *data, std::size_t len) {
                                                 ^
In file included from ../src/parser.hh:5:0,
                 from ../src/ffilib.cc:7:
../src/ast.hh: At global scope:
../src/ast.hh:239:28: error: template declaration of 'constexpr const ast::c_builtin ast::builtin_v'
 static constexpr c_builtin builtin_v = detail::builtin_v_base<T>::value;
                            ^
../src/ast.hh: In constructor 'ast::c_param::c_param(util::strbuf, ast::c_type)':
../src/ast.hh:775:45: warning: declaration of 'type' shadows a member of 'this' [-Wshadow]
     c_param(util::strbuf pname, c_type type):
                                             ^
../src/ast.hh: In constructor 'ast::c_function::c_function(ast::c_type, util::vector<ast::c_param>, uint32_t)':
../src/ast.hh:809:6: warning: declaration of 'params' shadows a member of 'this' [-Wshadow]
     ):
      ^
../src/ast.hh:809:6: warning: declaration of 'result' shadows a member of 'this' [-Wshadow]
../src/ast.hh: In constructor 'ast::c_variable::c_variable(util::strbuf, util::strbuf, ast::c_type)':
../src/ast.hh:863:67: warning: declaration of 'sym' shadows a member of 'this' [-Wshadow]
     c_variable(util::strbuf vname, util::strbuf sym, c_type vtype):
                                                                   ^
../src/ast.hh: In constructor 'ast::c_constant::c_constant(util::strbuf, ast::c_type, const ast::c_value&)':
../src/ast.hh:907:75: error: cannot convert 'const ast::c_value' to 'long double' in initialization
         p_name{util::move(cname)}, p_type{util::move(ctype)}, p_value{cval}
                                                                           ^
../src/ast.hh: At global scope:
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_type{};
                         ^
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_flex{};
                         ^
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh: In member function 'bool ast::c_record::passable() const':
../src/ast.hh:1056:33: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                 ^
../src/ast.hh:1056:42: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                          ^
../src/ast.hh: In lambda function:
../src/ast.hh:1057:18: error: 'type' was not declared in this scope
             if (!type.passable()) {
                  ^
../src/ast.hh: In constructor 'ast::c_enum::c_enum(util::strbuf, util::vector<ast::c_enum::field>)':
../src/ast.hh:1120:59: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     c_enum(util::strbuf ename, util::vector<field> fields):
                                                           ^
../src/ast.hh: In member function 'void ast::c_enum::set_fields(util::vector<ast::c_enum::field>)':
../src/ast.hh:1161:49: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     void set_fields(util::vector<field> fields) {
                                                 ^
In file included from ../src/libffi.hh:13:0,
                 from ../src/ast.hh:10,
                 from ../src/parser.hh:5,
                 from ../src/ffilib.cc:7:
../src/util.hh: In instantiation of 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]':
../src/ast.hh:1206:71:   required from here
../src/util.hh:185:1: error: body of constexpr function 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]' not a return-statement
 }
 ^
In file included from ../src/ffilib.cc:11:0:
../src/ffi.hh: In function 'constexpr auto ffi::metafield_name(ffi::metatype_flag)':
../src/ffi.hh:66:19: warning: compound-statement in constexpr function [-Wpedantic]
     switch (flag) {
                   ^
../src/ffi.hh:107:1: error: body of constexpr function 'constexpr const char* ffi::metafield_name(ffi::metatype_flag)' not a return-statement
 }
 ^
../src/ffilib.cc: In static member function 'static int cdata_meta::index(lua_State*)':
../src/ffilib.cc:321:46: error: parameter declared 'auto'
         if (index_common<false>(L, [L](auto &decl, void *val) {
                                              ^
../src/ffilib.cc: In lambda function:
../src/ffilib.cc:322:33: error: 'decl' was not declared in this scope
             if (!ffi::to_lua(L, decl, val, ffi::RULE_CONV)) {
                                 ^
../src/ffilib.cc: In static member function 'static int cdata_meta::newindex(lua_State*)':
../src/ffilib.cc:363:45: error: parameter declared 'auto'
         if (index_common<true>(L, [L](auto &decl, void *val) {
                                             ^
../src/ffilib.cc: In lambda function:
../src/ffilib.cc:364:30: error: 'decl' was not declared in this scope
             ffi::from_lua(L, decl, val, 3);
                              ^
../src/ffilib.cc: In static member function 'static int ffi_module::load_f(lua_State*)':
../src/ffilib.cc:1163:41: warning: missing initializer for member 'lib::c_lib::h' [-Wmissing-field-initializers]
         auto *c_ud = new (L) lib::c_lib{};
                                         ^
../src/ffilib.cc:1163:41: warning: missing initializer for member 'lib::c_lib::cache' [-Wmissing-field-initializers]
../src/ffilib.cc: In static member function 'static void ffi_module::open(lua_State*)':
../src/ffilib.cc:1661:41: warning: missing initializer for member 'lib::c_lib::h' [-Wmissing-field-initializers]
         auto *c_ud = new (L) lib::c_lib{};
                                         ^
../src/ffilib.cc:1661:41: warning: missing initializer for member 'lib::c_lib::cache' [-Wmissing-field-initializers]
In file included from ../src/parser.hh:5:0,
                 from ../src/ffilib.cc:7:
../src/ast.hh: In instantiation of 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1':
../src/ast.hh:1086:22:   required from 'struct ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1'
../src/ast.hh:1086:9:   required from 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]'
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1090:40: error: no match for call to '(ast::c_record::passable() const::__lambda0) (const char*&, const ast::c_type&, std::size_t&)'
             return acb(fname, type, off);
                                        ^
../src/ast.hh:1056:26: note: candidate is:
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                          ^
../src/ast.hh:1056:59: note: ast::c_record::passable() const::__lambda0
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                                           ^
../src/ast.hh:1056:59: note:   candidate expects 1 argument, 3 provided
../src/ast.hh: In instantiation of 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]':
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1086:9: error: no matching function for call to 'ast::c_record::iter_fields(ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1, ast::c_record::passable() const::__lambda0*, int, bool&) const'
         iter_fields([](
         ^
../src/ast.hh:1086:9: note: candidates are:
../src/ast.hh:1084:10: note: template<class F> void ast::c_record::iter_fields(F&&) const
     void iter_fields(F &&cb) const {
          ^
../src/ast.hh:1084:10: note:   template argument deduction/substitution failed:
../src/ast.hh:1086:9: note:   candidate expects 1 argument, 4 provided
         iter_fields([](
         ^
../src/ast.hh:1095:17: note: std::size_t ast::c_record::iter_fields(bool (*)(const char*, const ast::c_type&, std::size_t, void*), void*, std::size_t, bool&) const
     std::size_t iter_fields(bool (*cb)(
                 ^
../src/ast.hh:1095:17: note:   no known conversion for argument 1 from 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1' to 'bool (*)(const char*, const ast::c_type&, std::size_t, void*) {aka bool (*)(const char*, const ast::c_type&, unsigned int, void*)}'
../src/ffilib.cc: In instantiation of 'static bool cdata_meta::index_common(lua_State*, F&&) [with bool New = false; F = cdata_meta::index(lua_State*)::__lambda4; lua_State = lua_State]':
../src/ffilib.cc:325:10:   required from here
../src/ffilib.cc:254:75: error: no match for call to '(cdata_meta::index(lua_State*)::__lambda4) (const ast::c_type&, unsigned char*)'
                 func(*outf, &reinterpret_cast<unsigned char *>(valp)[foff]);
                                                                           ^
../src/ffilib.cc:321:38: note: candidate is:
         if (index_common<false>(L, [L](auto &decl, void *val) {
                                      ^
../src/ffilib.cc:321:61: note: cdata_meta::index(lua_State*)::__lambda4
         if (index_common<false>(L, [L](auto &decl, void *val) {
                                                             ^
../src/ffilib.cc:321:61: note:   candidate expects 1 argument, 2 provided
../src/ffilib.cc:264:72: error: no match for call to '(cdata_meta::index(lua_State*)::__lambda4) (const ast::c_type&, void*)'
         func(decl->ptr_base(), static_cast<void *>(&ptr[sidx * elsize]));
                                                                        ^
../src/ffilib.cc:321:38: note: candidate is:
         if (index_common<false>(L, [L](auto &decl, void *val) {
                                      ^
../src/ffilib.cc:321:61: note: cdata_meta::index(lua_State*)::__lambda4
         if (index_common<false>(L, [L](auto &decl, void *val) {
                                                             ^
../src/ffilib.cc:321:61: note:   candidate expects 1 argument, 2 provided
../src/ffilib.cc: In instantiation of 'static bool cdata_meta::index_common(lua_State*, F&&) [with bool New = true; F = cdata_meta::newindex(lua_State*)::__lambda5; lua_State = lua_State]':
../src/ffilib.cc:365:10:   required from here
../src/ffilib.cc:254:75: error: no match for call to '(cdata_meta::newindex(lua_State*)::__lambda5) (const ast::c_type&, unsigned char*)'
                 func(*outf, &reinterpret_cast<unsigned char *>(valp)[foff]);
                                                                           ^
../src/ffilib.cc:363:37: note: candidate is:
         if (index_common<true>(L, [L](auto &decl, void *val) {
                                     ^
../src/ffilib.cc:363:60: note: cdata_meta::newindex(lua_State*)::__lambda5
         if (index_common<true>(L, [L](auto &decl, void *val) {
                                                            ^
../src/ffilib.cc:363:60: note:   candidate expects 1 argument, 2 provided
../src/ffilib.cc:264:72: error: no match for call to '(cdata_meta::newindex(lua_State*)::__lambda5) (const ast::c_type&, void*)'
         func(decl->ptr_base(), static_cast<void *>(&ptr[sidx * elsize]));
                                                                        ^
../src/ffilib.cc:363:37: note: candidate is:
         if (index_common<true>(L, [L](auto &decl, void *val) {
                                     ^
../src/ffilib.cc:363:60: note: cdata_meta::newindex(lua_State*)::__lambda5
         if (index_common<true>(L, [L](auto &decl, void *val) {
                                                            ^
../src/ffilib.cc:363:60: note:   candidate expects 1 argument, 2 provided
[4/8] Compiling C++ object cffi.so.p/src_ast.cc.o
FAILED: cffi.so.p/src_ast.cc.o 
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -Icffi.so.p -I. -I.. -I/home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot/usr/include -DNDEBUG -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++1y -fno-exceptions -fno-rtti -O3 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -DCFFI_LUA_DLL -Wshadow -Wold-style-cast -fvisibility=hidden -DHAVE_CONFIG_H=1 -MD -MQ cffi.so.p/src_ast.cc.o -MF cffi.so.p/src_ast.cc.o.d -o cffi.so.p/src_ast.cc.o -c ../src/ast.cc
In file included from ../src/ast.cc:5:0:
../src/util.hh: In member function 'void util::vector<T>::setbuf(const T*, std::size_t)':
../src/util.hh:571:49: warning: declaration of 'data' shadows a member of 'this' [-Wshadow]
     void setbuf(T const *data, std::size_t len) {
                                                 ^
In file included from ../src/ast.cc:6:0:
../src/ast.hh: At global scope:
../src/ast.hh:239:28: error: template declaration of 'constexpr const ast::c_builtin ast::builtin_v'
 static constexpr c_builtin builtin_v = detail::builtin_v_base<T>::value;
                            ^
../src/ast.hh: In constructor 'ast::c_param::c_param(util::strbuf, ast::c_type)':
../src/ast.hh:775:45: warning: declaration of 'type' shadows a member of 'this' [-Wshadow]
     c_param(util::strbuf pname, c_type type):
                                             ^
../src/ast.hh: In constructor 'ast::c_function::c_function(ast::c_type, util::vector<ast::c_param>, uint32_t)':
../src/ast.hh:809:6: warning: declaration of 'params' shadows a member of 'this' [-Wshadow]
     ):
      ^
../src/ast.hh:809:6: warning: declaration of 'result' shadows a member of 'this' [-Wshadow]
../src/ast.hh: In constructor 'ast::c_variable::c_variable(util::strbuf, util::strbuf, ast::c_type)':
../src/ast.hh:863:67: warning: declaration of 'sym' shadows a member of 'this' [-Wshadow]
     c_variable(util::strbuf vname, util::strbuf sym, c_type vtype):
                                                                   ^
../src/ast.hh: In constructor 'ast::c_constant::c_constant(util::strbuf, ast::c_type, const ast::c_value&)':
../src/ast.hh:907:75: error: cannot convert 'const ast::c_value' to 'long double' in initialization
         p_name{util::move(cname)}, p_type{util::move(ctype)}, p_value{cval}
                                                                           ^
../src/ast.hh: At global scope:
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_type{};
                         ^
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_flex{};
                         ^
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh: In member function 'bool ast::c_record::passable() const':
../src/ast.hh:1056:33: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                 ^
../src/ast.hh:1056:42: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                          ^
../src/ast.hh: In lambda function:
../src/ast.hh:1057:18: error: 'type' was not declared in this scope
             if (!type.passable()) {
                  ^
../src/ast.hh: In constructor 'ast::c_enum::c_enum(util::strbuf, util::vector<ast::c_enum::field>)':
../src/ast.hh:1120:59: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     c_enum(util::strbuf ename, util::vector<field> fields):
                                                           ^
../src/ast.hh: In member function 'void ast::c_enum::set_fields(util::vector<ast::c_enum::field>)':
../src/ast.hh:1161:49: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     void set_fields(util::vector<field> fields) {
                                                 ^
In file included from ../src/ast.cc:5:0:
../src/util.hh: In instantiation of 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]':
../src/ast.hh:1206:71:   required from here
../src/util.hh:185:1: error: body of constexpr function 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]' not a return-statement
 }
 ^
In file included from ../src/ast.cc:7:0:
../src/ffi.hh: In function 'constexpr auto ffi::metafield_name(ffi::metatype_flag)':
../src/ffi.hh:66:19: warning: compound-statement in constexpr function [-Wpedantic]
     switch (flag) {
                   ^
../src/ffi.hh:107:1: error: body of constexpr function 'constexpr const char* ffi::metafield_name(ffi::metatype_flag)' not a return-statement
 }
 ^
../src/ast.cc: In function 'ast::c_type ast::from_lua_type(lua_State*, int)':
../src/ast.cc:1349:17: error: 'builtin_v' was not declared in this scope
                 builtin_v<lua_Number> != C_BUILTIN_INVALID,
                 ^
../src/ast.cc:1349:37: error: expected primary-expression before '>' token
                 builtin_v<lua_Number> != C_BUILTIN_INVALID,
                                     ^
../src/ast.cc:1349:39: error: expected primary-expression before '!=' token
                 builtin_v<lua_Number> != C_BUILTIN_INVALID,
                                       ^
../src/ast.cc:1353:38: error: expected primary-expression before '>' token
                 builtin_v<lua_Integer> != C_BUILTIN_INVALID,
                                      ^
../src/ast.cc:1353:40: error: expected primary-expression before '!=' token
                 builtin_v<lua_Integer> != C_BUILTIN_INVALID,
                                        ^
../src/ast.cc:1358:56: error: no matching function for call to 'ast::c_type::c_type(<brace-enclosed initializer list>)'
                 return c_type{builtin_v<lua_Integer>, 0};
                                                        ^
../src/ast.cc:1358:56: note: candidates are:
../src/ast.cc:698:1: note: ast::c_type::c_type(ast::c_type&&)
 c_type::c_type(c_type &&v):
 ^
../src/ast.cc:698:1: note:   candidate expects 1 argument, 2 provided
In file included from ../src/ast.cc:6:0:
../src/ast.hh:556:5: note: ast::c_type::c_type(const ast::c_enum*, uint32_t)
     c_type(c_enum const *ctp, std::uint32_t qual):
     ^
../src/ast.hh:556:5: note:   no known conversion for argument 1 from '<type error>' to 'const ast::c_enum*'
../src/ast.hh:552:5: note: ast::c_type::c_type(const ast::c_record*, uint32_t)
     c_type(c_record const *ctp, std::uint32_t qual):
     ^
../src/ast.hh:552:5: note:   no known conversion for argument 1 from '<type error>' to 'const ast::c_record*'
../src/ast.hh:545:5: note: ast::c_type::c_type(util::rc_obj<ast::c_function>, uint32_t, bool)
     c_type(util::rc_obj<c_function> ctp, std::uint32_t qual, bool cb):
     ^
../src/ast.hh:545:5: note:   candidate expects 3 arguments, 2 provided
../src/ast.hh:539:5: note: ast::c_type::c_type(util::rc_obj<ast::c_type>, uint32_t, ast::c_builtin)
     c_type(util::rc_obj<c_type> ctp, std::uint32_t qual, c_builtin cbt):
     ^
../src/ast.hh:539:5: note:   candidate expects 3 arguments, 2 provided
../src/ast.hh:530:5: note: ast::c_type::c_type(util::rc_obj<ast::c_type>, uint32_t, std::size_t, uint32_t)
     c_type(
     ^
../src/ast.hh:530:5: note:   candidate expects 4 arguments, 2 provided
../src/ast.hh:526:5: note: ast::c_type::c_type(ast::c_builtin, uint32_t)
     c_type(c_builtin cbt, std::uint32_t qual):
     ^
../src/ast.hh:526:5: note:   no known conversion for argument 1 from '<type error>' to 'ast::c_builtin'
../src/ast.hh:522:5: note: ast::c_type::c_type()
     c_type():
     ^
../src/ast.hh:522:5: note:   candidate expects 0 arguments, 2 provided
../src/ast.cc:1358:30: error: expected primary-expression before '{' token
                 return c_type{builtin_v<lua_Integer>, 0};
                              ^
../src/ast.cc:1358:30: error: expected ';' before '{' token
../src/ast.cc:1358:52: error: expected primary-expression before '>' token
                 return c_type{builtin_v<lua_Integer>, 0};
                                                    ^
../src/ast.cc:1358:53: error: expected primary-expression before ',' token
                 return c_type{builtin_v<lua_Integer>, 0};
                                                     ^
../src/ast.cc:1358:56: error: expected ';' before '}' token
                 return c_type{builtin_v<lua_Integer>, 0};
                                                        ^
../src/ast.cc:1360:51: error: no matching function for call to 'ast::c_type::c_type(<brace-enclosed initializer list>)'
             return c_type{builtin_v<lua_Number>, 0};
                                                   ^
../src/ast.cc:1360:51: note: candidates are:
../src/ast.cc:698:1: note: ast::c_type::c_type(ast::c_type&&)
 c_type::c_type(c_type &&v):
 ^
../src/ast.cc:698:1: note:   candidate expects 1 argument, 2 provided
In file included from ../src/ast.cc:6:0:
../src/ast.hh:556:5: note: ast::c_type::c_type(const ast::c_enum*, uint32_t)
     c_type(c_enum const *ctp, std::uint32_t qual):
     ^
../src/ast.hh:556:5: note:   no known conversion for argument 1 from '<type error>' to 'const ast::c_enum*'
../src/ast.hh:552:5: note: ast::c_type::c_type(const ast::c_record*, uint32_t)
     c_type(c_record const *ctp, std::uint32_t qual):
     ^
../src/ast.hh:552:5: note:   no known conversion for argument 1 from '<type error>' to 'const ast::c_record*'
../src/ast.hh:545:5: note: ast::c_type::c_type(util::rc_obj<ast::c_function>, uint32_t, bool)
     c_type(util::rc_obj<c_function> ctp, std::uint32_t qual, bool cb):
     ^
../src/ast.hh:545:5: note:   candidate expects 3 arguments, 2 provided
../src/ast.hh:539:5: note: ast::c_type::c_type(util::rc_obj<ast::c_type>, uint32_t, ast::c_builtin)
     c_type(util::rc_obj<c_type> ctp, std::uint32_t qual, c_builtin cbt):
     ^
../src/ast.hh:539:5: note:   candidate expects 3 arguments, 2 provided
../src/ast.hh:530:5: note: ast::c_type::c_type(util::rc_obj<ast::c_type>, uint32_t, std::size_t, uint32_t)
     c_type(
     ^
../src/ast.hh:530:5: note:   candidate expects 4 arguments, 2 provided
../src/ast.hh:526:5: note: ast::c_type::c_type(ast::c_builtin, uint32_t)
     c_type(c_builtin cbt, std::uint32_t qual):
     ^
../src/ast.hh:526:5: note:   no known conversion for argument 1 from '<type error>' to 'ast::c_builtin'
../src/ast.hh:522:5: note: ast::c_type::c_type()
     c_type():
     ^
../src/ast.hh:522:5: note:   candidate expects 0 arguments, 2 provided
../src/ast.cc:1360:26: error: expected primary-expression before '{' token
             return c_type{builtin_v<lua_Number>, 0};
                          ^
../src/ast.cc:1360:26: error: expected ';' before '{' token
../src/ast.cc:1360:47: error: expected primary-expression before '>' token
             return c_type{builtin_v<lua_Number>, 0};
                                               ^
../src/ast.cc:1360:48: error: expected primary-expression before ',' token
             return c_type{builtin_v<lua_Number>, 0};
                                                ^
../src/ast.cc:1360:51: error: expected ';' before '}' token
             return c_type{builtin_v<lua_Number>, 0};
                                                   ^
In file included from ../src/ast.cc:6:0:
../src/ast.hh: In instantiation of 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1':
../src/ast.hh:1086:22:   required from 'struct ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1'
../src/ast.hh:1086:9:   required from 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]'
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1090:40: error: no match for call to '(ast::c_record::passable() const::__lambda0) (const char*&, const ast::c_type&, std::size_t&)'
             return acb(fname, type, off);
                                        ^
../src/ast.hh:1056:26: note: candidate is:
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                          ^
../src/ast.hh:1056:59: note: ast::c_record::passable() const::__lambda0
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                                           ^
../src/ast.hh:1056:59: note:   candidate expects 1 argument, 3 provided
../src/ast.hh: In instantiation of 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]':
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1086:9: error: no matching function for call to 'ast::c_record::iter_fields(ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1, ast::c_record::passable() const::__lambda0*, int, bool&) const'
         iter_fields([](
         ^
../src/ast.hh:1086:9: note: candidates are:
../src/ast.hh:1084:10: note: template<class F> void ast::c_record::iter_fields(F&&) const
     void iter_fields(F &&cb) const {
          ^
../src/ast.hh:1084:10: note:   template argument deduction/substitution failed:
../src/ast.hh:1086:9: note:   candidate expects 1 argument, 4 provided
         iter_fields([](
         ^
../src/ast.cc:1091:13: note: std::size_t ast::c_record::iter_fields(bool (*)(const char*, const ast::c_type&, std::size_t, void*), void*, std::size_t, bool&) const
 std::size_t c_record::iter_fields(bool (*cb)(
             ^
../src/ast.cc:1091:13: note:   no known conversion for argument 1 from 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1' to 'bool (*)(const char*, const ast::c_type&, std::size_t, void*) {aka bool (*)(const char*, const ast::c_type&, unsigned int, void*)}'
[5/8] Compiling C++ object cffi.so.p/src_parser.cc.o
FAILED: cffi.so.p/src_parser.cc.o 
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -Icffi.so.p -I. -I.. -I/home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot/usr/include -DNDEBUG -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++1y -fno-exceptions -fno-rtti -O3 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -DCFFI_LUA_DLL -Wshadow -Wold-style-cast -fvisibility=hidden -DHAVE_CONFIG_H=1 -MD -MQ cffi.so.p/src_parser.cc.o -MF cffi.so.p/src_parser.cc.o.d -o cffi.so.p/src_parser.cc.o -c ../src/parser.cc
In file included from ../src/libffi.hh:13:0,
                 from ../src/ast.hh:10,
                 from ../src/parser.hh:5,
                 from ../src/parser.cc:6:
../src/util.hh: In member function 'void util::vector<T>::setbuf(const T*, std::size_t)':
../src/util.hh:571:49: warning: declaration of 'data' shadows a member of 'this' [-Wshadow]
     void setbuf(T const *data, std::size_t len) {
                                                 ^
In file included from ../src/parser.hh:5:0,
                 from ../src/parser.cc:6:
../src/ast.hh: At global scope:
../src/ast.hh:239:28: error: template declaration of 'constexpr const ast::c_builtin ast::builtin_v'
 static constexpr c_builtin builtin_v = detail::builtin_v_base<T>::value;
                            ^
../src/ast.hh: In constructor 'ast::c_param::c_param(util::strbuf, ast::c_type)':
../src/ast.hh:775:45: warning: declaration of 'type' shadows a member of 'this' [-Wshadow]
     c_param(util::strbuf pname, c_type type):
                                             ^
../src/ast.hh: In constructor 'ast::c_function::c_function(ast::c_type, util::vector<ast::c_param>, uint32_t)':
../src/ast.hh:809:6: warning: declaration of 'params' shadows a member of 'this' [-Wshadow]
     ):
      ^
../src/ast.hh:809:6: warning: declaration of 'result' shadows a member of 'this' [-Wshadow]
../src/ast.hh: In constructor 'ast::c_variable::c_variable(util::strbuf, util::strbuf, ast::c_type)':
../src/ast.hh:863:67: warning: declaration of 'sym' shadows a member of 'this' [-Wshadow]
     c_variable(util::strbuf vname, util::strbuf sym, c_type vtype):
                                                                   ^
../src/ast.hh: In constructor 'ast::c_constant::c_constant(util::strbuf, ast::c_type, const ast::c_value&)':
../src/ast.hh:907:75: error: cannot convert 'const ast::c_value' to 'long double' in initialization
         p_name{util::move(cname)}, p_type{util::move(ctype)}, p_value{cval}
                                                                           ^
../src/ast.hh: At global scope:
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_type{};
                         ^
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_flex{};
                         ^
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh: In member function 'bool ast::c_record::passable() const':
../src/ast.hh:1056:33: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                 ^
../src/ast.hh:1056:42: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                          ^
../src/ast.hh: In lambda function:
../src/ast.hh:1057:18: error: 'type' was not declared in this scope
             if (!type.passable()) {
                  ^
../src/ast.hh: In constructor 'ast::c_enum::c_enum(util::strbuf, util::vector<ast::c_enum::field>)':
../src/ast.hh:1120:59: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     c_enum(util::strbuf ename, util::vector<field> fields):
                                                           ^
../src/ast.hh: In member function 'void ast::c_enum::set_fields(util::vector<ast::c_enum::field>)':
../src/ast.hh:1161:49: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     void set_fields(util::vector<field> fields) {
                                                 ^
In file included from ../src/libffi.hh:13:0,
                 from ../src/ast.hh:10,
                 from ../src/parser.hh:5,
                 from ../src/parser.cc:6:
../src/util.hh: In instantiation of 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]':
../src/ast.hh:1206:71:   required from here
../src/util.hh:185:1: error: body of constexpr function 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]' not a return-statement
 }
 ^
../src/parser.cc: In function 'bool parser::parse_typebase_core(parser::lex_state&, ast::c_type&, bool*, bool*)':
../src/parser.cc:2106:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::int8_t>;
                   ^
../src/parser.cc:2106:45: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::int8_t>;
                                             ^
../src/parser.cc:2106:46: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::int8_t>;
                                              ^
../src/parser.cc:2109:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::int16_t>;
                   ^
../src/parser.cc:2109:46: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::int16_t>;
                                              ^
../src/parser.cc:2109:47: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::int16_t>;
                                               ^
../src/parser.cc:2112:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::int32_t>;
                   ^
../src/parser.cc:2112:46: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::int32_t>;
                                              ^
../src/parser.cc:2112:47: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::int32_t>;
                                               ^
../src/parser.cc:2115:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::int64_t>;
                   ^
../src/parser.cc:2115:46: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::int64_t>;
                                              ^
../src/parser.cc:2115:47: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::int64_t>;
                                               ^
../src/parser.cc:2118:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::uint8_t>;
                   ^
../src/parser.cc:2118:46: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::uint8_t>;
                                              ^
../src/parser.cc:2118:47: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::uint8_t>;
                                               ^
../src/parser.cc:2121:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::uint16_t>;
                   ^
../src/parser.cc:2121:47: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::uint16_t>;
                                               ^
../src/parser.cc:2121:48: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::uint16_t>;
                                                ^
../src/parser.cc:2124:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::uint32_t>;
                   ^
../src/parser.cc:2124:47: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::uint32_t>;
                                               ^
../src/parser.cc:2124:48: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::uint32_t>;
                                                ^
../src/parser.cc:2127:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::uint64_t>;
                   ^
../src/parser.cc:2127:47: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::uint64_t>;
                                               ^
../src/parser.cc:2127:48: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::uint64_t>;
                                                ^
../src/parser.cc:2130:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::uintptr_t>;
                   ^
../src/parser.cc:2130:48: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::uintptr_t>;
                                                ^
../src/parser.cc:2130:49: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::uintptr_t>;
                                                 ^
../src/parser.cc:2133:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::intptr_t>;
                   ^
../src/parser.cc:2133:47: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::intptr_t>;
                                               ^
../src/parser.cc:2133:48: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::intptr_t>;
                                                ^
../src/parser.cc:2136:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::ptrdiff_t>;
                   ^
../src/parser.cc:2136:48: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::ptrdiff_t>;
                                                ^
../src/parser.cc:2136:49: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::ptrdiff_t>;
                                                 ^
../src/parser.cc:2139:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<signed_size_t>;
                   ^
../src/parser.cc:2139:47: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<signed_size_t>;
                                               ^
../src/parser.cc:2139:48: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<signed_size_t>;
                                                ^
../src/parser.cc:2142:19: error: 'builtin_v' is not a member of 'ast'
             cbt = ast::builtin_v<std::size_t>;
                   ^
../src/parser.cc:2142:45: error: expected primary-expression before '>' token
             cbt = ast::builtin_v<std::size_t>;
                                             ^
../src/parser.cc:2142:46: error: expected primary-expression before ';' token
             cbt = ast::builtin_v<std::size_t>;
                                              ^
../src/parser.cc:2149:34: error: 'builtin_v' is not a member of 'ast'
         case TOK_time_t:   cbt = ast::builtin_v<std::time_t>; goto btype;
                                  ^
../src/parser.cc:2149:60: error: expected primary-expression before '>' token
         case TOK_time_t:   cbt = ast::builtin_v<std::time_t>; goto btype;
                                                            ^
../src/parser.cc:2149:61: error: expected primary-expression before ';' token
         case TOK_time_t:   cbt = ast::builtin_v<std::time_t>; goto btype;
                                                             ^
../src/parser.cc:2150:34: error: 'builtin_v' is not a member of 'ast'
         case TOK_wchar_t:  cbt = ast::builtin_v<wchar_t>;  goto btype;
                                  ^
../src/parser.cc:2150:49: error: expected primary-expression before 'wchar_t'
         case TOK_wchar_t:  cbt = ast::builtin_v<wchar_t>;  goto btype;
                                                 ^
../src/parser.cc:2150:49: error: expected ';' before 'wchar_t'
../src/parser.cc:2151:34: error: 'builtin_v' is not a member of 'ast'
         case TOK_char16_t: cbt = ast::builtin_v<char16_t>; goto btype;
                                  ^
../src/parser.cc:2151:49: error: expected primary-expression before 'char16_t'
         case TOK_char16_t: cbt = ast::builtin_v<char16_t>; goto btype;
                                                 ^
../src/parser.cc:2151:49: error: expected ';' before 'char16_t'
../src/parser.cc:2152:34: error: 'builtin_v' is not a member of 'ast'
         case TOK_char32_t: cbt = ast::builtin_v<char32_t>; goto btype;
                                  ^
../src/parser.cc:2152:49: error: expected primary-expression before 'char32_t'
         case TOK_char32_t: cbt = ast::builtin_v<char32_t>; goto btype;
                                                 ^
../src/parser.cc:2152:49: error: expected ';' before 'char32_t'
In file included from ../src/parser.hh:5:0,
                 from ../src/parser.cc:6:
../src/ast.hh: In instantiation of 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1':
../src/ast.hh:1086:22:   required from 'struct ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1'
../src/ast.hh:1086:9:   required from 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]'
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1090:40: error: no match for call to '(ast::c_record::passable() const::__lambda0) (const char*&, const ast::c_type&, std::size_t&)'
             return acb(fname, type, off);
                                        ^
../src/ast.hh:1056:26: note: candidate is:
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                          ^
../src/ast.hh:1056:59: note: ast::c_record::passable() const::__lambda0
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                                           ^
../src/ast.hh:1056:59: note:   candidate expects 1 argument, 3 provided
../src/ast.hh: In instantiation of 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]':
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1086:9: error: no matching function for call to 'ast::c_record::iter_fields(ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1, ast::c_record::passable() const::__lambda0*, int, bool&) const'
         iter_fields([](
         ^
../src/ast.hh:1086:9: note: candidates are:
../src/ast.hh:1084:10: note: template<class F> void ast::c_record::iter_fields(F&&) const
     void iter_fields(F &&cb) const {
          ^
../src/ast.hh:1084:10: note:   template argument deduction/substitution failed:
../src/ast.hh:1086:9: note:   candidate expects 1 argument, 4 provided
         iter_fields([](
         ^
../src/ast.hh:1095:17: note: std::size_t ast::c_record::iter_fields(bool (*)(const char*, const ast::c_type&, std::size_t, void*), void*, std::size_t, bool&) const
     std::size_t iter_fields(bool (*cb)(
                 ^
../src/ast.hh:1095:17: note:   no known conversion for argument 1 from 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1' to 'bool (*)(const char*, const ast::c_type&, std::size_t, void*) {aka bool (*)(const char*, const ast::c_type&, unsigned int, void*)}'
[6/8] Compiling C++ object cffi.so.p/src_ffi.cc.o
FAILED: cffi.so.p/src_ffi.cc.o 
/home/buildroot/autobuild/instance-0/output-1/host/bin/arm-none-linux-gnueabi-g++ -Icffi.so.p -I. -I.. -I/home/buildroot/autobuild/instance-0/output-1/host/arm-buildroot-linux-gnueabi/sysroot/usr/include -DNDEBUG -Wall -Winvalid-pch -Wnon-virtual-dtor -Wextra -Wpedantic -std=c++1y -fno-exceptions -fno-rtti -O3 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -Os -g0 -D_FORTIFY_SOURCE=1 -fPIC -DCFFI_LUA_DLL -Wshadow -Wold-style-cast -fvisibility=hidden -DHAVE_CONFIG_H=1 -MD -MQ cffi.so.p/src_ffi.cc.o -MF cffi.so.p/src_ffi.cc.o.d -o cffi.so.p/src_ffi.cc.o -c ../src/ffi.cc
In file included from ../src/ffi.cc:2:0:
../src/util.hh: In member function 'void util::vector<T>::setbuf(const T*, std::size_t)':
../src/util.hh:571:49: warning: declaration of 'data' shadows a member of 'this' [-Wshadow]
     void setbuf(T const *data, std::size_t len) {
                                                 ^
In file included from ../src/ffi.hh:10:0,
                 from ../src/ffi.cc:3:
../src/ast.hh: At global scope:
../src/ast.hh:239:28: error: template declaration of 'constexpr const ast::c_builtin ast::builtin_v'
 static constexpr c_builtin builtin_v = detail::builtin_v_base<T>::value;
                            ^
../src/ast.hh: In constructor 'ast::c_param::c_param(util::strbuf, ast::c_type)':
../src/ast.hh:775:45: warning: declaration of 'type' shadows a member of 'this' [-Wshadow]
     c_param(util::strbuf pname, c_type type):
                                             ^
../src/ast.hh: In constructor 'ast::c_function::c_function(ast::c_type, util::vector<ast::c_param>, uint32_t)':
../src/ast.hh:809:6: warning: declaration of 'params' shadows a member of 'this' [-Wshadow]
     ):
      ^
../src/ast.hh:809:6: warning: declaration of 'result' shadows a member of 'this' [-Wshadow]
../src/ast.hh: In constructor 'ast::c_variable::c_variable(util::strbuf, util::strbuf, ast::c_type)':
../src/ast.hh:863:67: warning: declaration of 'sym' shadows a member of 'this' [-Wshadow]
     c_variable(util::strbuf vname, util::strbuf sym, c_type vtype):
                                                                   ^
../src/ast.hh: In constructor 'ast::c_constant::c_constant(util::strbuf, ast::c_type, const ast::c_value&)':
../src/ast.hh:907:75: error: cannot convert 'const ast::c_value' to 'long double' in initialization
         p_name{util::move(cname)}, p_type{util::move(ctype)}, p_value{cval}
                                                                           ^
../src/ast.hh: At global scope:
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_type{};
                         ^
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1103:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::size' [-Wmissing-field-initializers]
     ffi_type p_ffi_flex{};
                         ^
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::alignment' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::type' [-Wmissing-field-initializers]
../src/ast.hh:1104:25: warning: missing initializer for member '_ffi_type::elements' [-Wmissing-field-initializers]
../src/ast.hh: In member function 'bool ast::c_record::passable() const':
../src/ast.hh:1056:33: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                 ^
../src/ast.hh:1056:42: error: parameter declared 'auto'
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                          ^
../src/ast.hh: In lambda function:
../src/ast.hh:1057:18: error: 'type' was not declared in this scope
             if (!type.passable()) {
                  ^
../src/ast.hh: In constructor 'ast::c_enum::c_enum(util::strbuf, util::vector<ast::c_enum::field>)':
../src/ast.hh:1120:59: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     c_enum(util::strbuf ename, util::vector<field> fields):
                                                           ^
../src/ast.hh: In member function 'void ast::c_enum::set_fields(util::vector<ast::c_enum::field>)':
../src/ast.hh:1161:49: warning: declaration of 'fields' shadows a member of 'this' [-Wshadow]
     void set_fields(util::vector<field> fields) {
                                                 ^
In file included from ../src/ffi.cc:2:0:
../src/util.hh: In instantiation of 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]':
../src/ast.hh:1206:71:   required from here
../src/util.hh:185:1: error: body of constexpr function 'constexpr T util::exchange(T&, U&&) [with T = ast::c_object*; U = std::nullptr_t]' not a return-statement
 }
 ^
In file included from ../src/ffi.cc:3:0:
../src/ffi.hh: In function 'constexpr auto ffi::metafield_name(ffi::metatype_flag)':
../src/ffi.hh:66:19: warning: compound-statement in constexpr function [-Wpedantic]
     switch (flag) {
                   ^
../src/ffi.hh:107:1: error: body of constexpr function 'constexpr const char* ffi::metafield_name(ffi::metatype_flag)' not a return-statement
 }
 ^
../src/ffi.cc: In function 'void ffi::make_cdata_func(lua_State*, void (*)(), util::rc_obj<ast::c_function>, bool, ffi::closure_data*)':
../src/ffi.cc:289:49: warning: ISO C++ forbids casting between pointer-to-function and pointer-to-object [enabled by default]
             reinterpret_cast<void *>(fud.val.sym)
                                                 ^
../src/ffi.cc: In function 'void ffi::from_lua_str(lua_State*, const ast::c_type&, void*, std::size_t, int, std::size_t, std::size_t)':
../src/ffi.cc:1136:19: warning: missing initializer for member 'ffi::arg_stor_t::pad' [-Wmissing-field-initializers]
     arg_stor_t sv{};
                   ^
../src/ffi.cc: In function 'bool ffi::from_lua_aggreg(lua_State*, const ast::c_type&, void*, std::size_t, int, int)':
../src/ffi.cc:1336:39: warning: missing initializer for member 'ffi::arg_stor_t::pad' [-Wmissing-field-initializers]
                         arg_stor_t sv{};
                                       ^
../src/ffi.cc: In function 'void ffi::from_lua(lua_State*, const ast::c_type&, void*, int)':
../src/ffi.cc:1404:23: warning: missing initializer for member 'ffi::arg_stor_t::pad' [-Wmissing-field-initializers]
         arg_stor_t sv{};
                       ^
../src/ffi.cc: In function 'void ffi::get_global(lua_State*, const lib::c_lib*, const char*)':
../src/ffi.cc:1437:57: warning: ISO C++ forbids casting between pointer-to-function and pointer-to-object [enabled by default]
                     L, reinterpret_cast<void (*)()>(symp),
                                                         ^
../src/ffi.cc: In function 'void ffi::make_cdata(lua_State*, const ast::c_type&, int, int)':
../src/ffi.cc:1483:21: warning: missing initializer for member 'ffi::arg_stor_t::pad' [-Wmissing-field-initializers]
     arg_stor_t stor{};
                     ^
In file included from ../src/ffi.hh:10:0,
                 from ../src/ffi.cc:3:
../src/ast.hh: In instantiation of 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1':
../src/ast.hh:1086:22:   required from 'struct ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1'
../src/ast.hh:1086:9:   required from 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]'
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1090:40: error: no match for call to '(ast::c_record::passable() const::__lambda0) (const char*&, const ast::c_type&, std::size_t&)'
             return acb(fname, type, off);
                                        ^
../src/ast.hh:1056:26: note: candidate is:
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                          ^
../src/ast.hh:1056:59: note: ast::c_record::passable() const::__lambda0
         iter_fields([&ret](auto *, auto &type, std::size_t) {
                                                           ^
../src/ast.hh:1056:59: note:   candidate expects 1 argument, 3 provided
../src/ast.hh: In instantiation of 'void ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]':
../src/ast.hh:1062:10:   required from here
../src/ast.hh:1086:9: error: no matching function for call to 'ast::c_record::iter_fields(ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1, ast::c_record::passable() const::__lambda0*, int, bool&) const'
         iter_fields([](
         ^
../src/ast.hh:1086:9: note: candidates are:
../src/ast.hh:1084:10: note: template<class F> void ast::c_record::iter_fields(F&&) const
     void iter_fields(F &&cb) const {
          ^
../src/ast.hh:1084:10: note:   template argument deduction/substitution failed:
../src/ast.hh:1086:9: note:   candidate expects 1 argument, 4 provided
         iter_fields([](
         ^
../src/ast.hh:1095:17: note: std::size_t ast::c_record::iter_fields(bool (*)(const char*, const ast::c_type&, std::size_t, void*), void*, std::size_t, bool&) const
     std::size_t iter_fields(bool (*cb)(
                 ^
../src/ast.hh:1095:17: note:   no known conversion for argument 1 from 'ast::c_record::iter_fields(F&&) const [with F = ast::c_record::passable() const::__lambda0]::__lambda1' to 'bool (*)(const char*, const ast::c_type&, std::size_t, void*) {aka bool (*)(const char*, const ast::c_type&, unsigned int, void*)}'
ninja: build stopped: subcommand failed.
package/pkg-generic.mk:289: recipe for target '/home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1/.stamp_built' failed
make: *** [/home/buildroot/autobuild/instance-0/output-1/build/lua-cffi-0.2.1/.stamp_built] Error 1
make: Leaving directory '/home/buildroot/autobuild/instance-0/buildroot'