>>> host-pkgconf 1.6.3 Extracting
xzcat /home/buildroot/autobuild/instance-2/dl/pkgconf/pkgconf-1.6.3.tar.xz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3   -xf -
>>> host-pkgconf 1.6.3 Patching

Applying 0001-Only-prefix-with-the-sysroot-a-subset-of-variables.patch using patch: 
patching file libpkgconf/tuple.c

Applying 0002-Revert-main-assume-modversion-insted-of-version-if-o.patch using patch: 
patching file cli/main.c
>>> host-pkgconf 1.6.3 Updating config.sub and config.guess
for file in config.guess config.sub; do for i in $(find /home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3 -name $file); do cp support/gnuconfig/$file $i; done; done
>>> host-pkgconf 1.6.3 Patching libtool
patching file /home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3/ltmain.sh
Hunk #1 succeeded at 2694 (offset 7 lines).
Hunk #2 succeeded at 4284 (offset 7 lines).
Hunk #3 succeeded at 6579 (offset 25 lines).
Hunk #4 succeeded at 6589 (offset 25 lines).
Hunk #5 succeeded at 6882 (offset 25 lines).
Hunk #6 succeeded at 7174 (offset 25 lines).
Hunk #7 succeeded at 8146 (offset 34 lines).
Hunk #8 succeeded at 10778 (offset 68 lines).
>>> host-pkgconf 1.6.3 Configuring
(cd /home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3/ && rm -rf config.cache; PATH="/home/buildroot/autobuild/instance-2/output-1/host/bin:/home/buildroot/autobuild/instance-2/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" PKG_CONFIG="/home/buildroot/autobuild/instance-2/output-1/host/bin/pkg-config" PKG_CONFIG_SYSROOT_DIR="/" PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 PKG_CONFIG_LIBDIR="/home/buildroot/autobuild/instance-2/output-1/host/lib/pkgconfig:/home/buildroot/autobuild/instance-2/output-1/host/share/pkgconfig" AR="/usr/bin/ar" AS="/usr/bin/as" LD="/usr/bin/ld" NM="/usr/bin/nm" CC="/usr/bin/gcc" GCC="/usr/bin/gcc" CXX="/usr/bin/g++" CPP="/usr/bin/cpp" OBJCOPY="/usr/bin/objcopy" RANLIB="/usr/bin/ranlib" CPPFLAGS="-I/home/buildroot/autobuild/instance-2/output-1/host/include" CFLAGS="-O2 -I/home/buildroot/autobuild/instance-2/output-1/host/include" CXXFLAGS="-O2 -I/home/buildroot/autobuild/instance-2/output-1/host/include" LDFLAGS="-L/home/buildroot/autobuild/instance-2/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-2/output-1/host/lib" INTLTOOL_PERL=/usr/bin/perl CFLAGS="-O2 -I/home/buildroot/autobuild/instance-2/output-1/host/include" LDFLAGS="-L/home/buildroot/autobuild/instance-2/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-2/output-1/host/lib"  CONFIG_SITE=/dev/null ./configure --prefix="/home/buildroot/autobuild/instance-2/output-1/host" --sysconfdir="/home/buildroot/autobuild/instance-2/output-1/host/etc" --localstatedir="/home/buildroot/autobuild/instance-2/output-1/host/var" --enable-shared --disable-static --disable-gtk-doc --disable-gtk-doc-html --disable-doc --disable-docs --disable-documentation --disable-debug --with-xmlto=no --with-fop=no --disable-nls --disable-dependency-tracking   )
configure: WARNING: unrecognized options: --disable-gtk-doc, --disable-gtk-doc-html, --disable-doc, --disable-docs, --disable-documentation, --disable-debug, --with-xmlto, --with-fop, --disable-nls
checking for gcc... /usr/bin/gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables... configure: error: in `/home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3':
configure: error: cannot compute suffix of executables: cannot compile and link
See `config.log' for more details
package/pkg-generic.mk:272: recipe for target '/home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3/.stamp_configured' failed
make: *** [/home/buildroot/autobuild/instance-2/output-1/build/host-pkgconf-1.6.3/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/autobuild/instance-2/buildroot'