>>> libupnp18 1.8.4 Downloading
--2019-05-01 21:31:56--  http://downloads.sourceforge.net/project/pupnp/pupnp/libupnp-1.8.4/libupnp-1.8.4.tar.bz2
Resolving downloads.sourceforge.net (downloads.sourceforge.net)... 216.105.38.13
Connecting to downloads.sourceforge.net (downloads.sourceforge.net)|216.105.38.13|:80... connected.
HTTP request sent, awaiting response... 302 Found
Location: https://netix.dl.sourceforge.net/project/pupnp/pupnp/libupnp-1.8.4/libupnp-1.8.4.tar.bz2 [following]
--2019-05-01 21:31:56--  https://netix.dl.sourceforge.net/project/pupnp/pupnp/libupnp-1.8.4/libupnp-1.8.4.tar.bz2
Resolving netix.dl.sourceforge.net (netix.dl.sourceforge.net)... 87.121.121.2
Connecting to netix.dl.sourceforge.net (netix.dl.sourceforge.net)|87.121.121.2|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 676576 (661K) [application/octet-stream]
Saving to: '/home/buildroot/autobuild/run/instance-1/output/build/.libupnp-1.8.4.tar.bz2.bswIxz/output'

     0K .......... .......... .......... .......... ..........  7%  555K 1s
    50K .......... .......... .......... .......... .......... 15% 1.09M 1s
   100K .......... .......... .......... .......... .......... 22% 35.2M 0s
   150K .......... .......... .......... .......... .......... 30%  111M 0s
   200K .......... .......... .......... .......... .......... 37% 1.12M 0s
   250K .......... .......... .......... .......... .......... 45% 46.7M 0s
   300K .......... .......... .......... .......... .......... 52%  112M 0s
   350K .......... .......... .......... .......... .......... 60% 1.13M 0s
   400K .......... .......... .......... .......... .......... 68% 47.0M 0s
   450K .......... .......... .......... .......... .......... 75% 71.0M 0s
   500K .......... .......... .......... .......... .......... 83% 1.08M 0s
   550K .......... .......... .......... .......... .......... 90%  111M 0s
   600K .......... .......... .......... .......... .......... 98%  105M 0s
   650K ..........                                            100%  130M=0.3s

2019-05-01 21:31:57 (2.36 MB/s) - '/home/buildroot/autobuild/run/instance-1/output/build/.libupnp-1.8.4.tar.bz2.bswIxz/output' saved [676576/676576]

libupnp-1.8.4.tar.bz2: OK (sha1: 93e7b3c94cf53eb59533b4b7b137ef5cc651e28b)
libupnp-1.8.4.tar.bz2: OK (sha256: 188d3f786d92fe14191f17634d2d87847eee7d2b568a5257ea23262fec9973d6)
>>> libupnp18 1.8.4 Extracting
bzcat /home/buildroot/autobuild/run/instance-1/dl/libupnp18/libupnp-1.8.4.tar.bz2 | tar --strip-components=1 -C /home/buildroot/autobuild/run/instance-1/output/build/libupnp18-1.8.4   -xf -
>>> libupnp18 1.8.4 Patching

Applying 0001-configure.ac-fix-build-with-openssl.patch using patch: 
patching file configure.ac
Hunk #1 succeeded at 713 (offset -9 lines).
patching file libupnp.pc.in
>>> libupnp18 1.8.4 Updating config.sub and config.guess
for file in config.guess config.sub; do for i in $(find /home/buildroot/autobuild/run/instance-1/output/build/libupnp18-1.8.4 -name $file); do cp support/gnuconfig/$file $i; done; done
>>> libupnp18 1.8.4 Configuring
>>> libupnp18 1.8.4 Autoreconfiguring
libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'build-aux'.
libtoolize: copying file 'build-aux/ltmain.sh'
libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
libtoolize: copying file 'm4/libtool.m4'
libtoolize: copying file 'm4/ltoptions.m4'
libtoolize: copying file 'm4/ltsugar.m4'
libtoolize: copying file 'm4/ltversion.m4'
libtoolize: copying file 'm4/lt~obsolete.m4'
configure.ac:630: error: possibly undefined macro: AC_MSG_ERROR
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
autoreconf: /home/buildroot/autobuild/run/instance-1/output/host/bin/autoconf failed with exit status: 1
package/pkg-generic.mk:228: recipe for target '/home/buildroot/autobuild/run/instance-1/output/build/libupnp18-1.8.4/.stamp_configured' failed
make: *** [/home/buildroot/autobuild/run/instance-1/output/build/libupnp18-1.8.4/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/autobuild/run/instance-1/buildroot'