Applying ./patches/01-spandsp3-pkg-config.patch using plaintext: 
patching file spandsp.pc.in

Applying ./patches/02-do-not-check-for-libxml2.patch using plaintext: 
patching file configure.ac
autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/target-i386_pentium-mmx_musl/host/share/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/hostpkg/share/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/target-i386_pentium-mmx_musl/usr/share/aclocal -I m4 -I . --force -I m4
autoreconf: configure.ac: tracing
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/libtoolize --install --force
OpenWrt-libtoolize: putting auxiliary files in AC_CONFIG_AUX_DIR, 'config'.
OpenWrt-libtoolize: linking file 'config/config.guess'
OpenWrt-libtoolize: linking file 'config/config.sub'
OpenWrt-libtoolize: linking file 'config/install-sh'
OpenWrt-libtoolize: linking file 'config/ltmain.sh'
OpenWrt-libtoolize: putting macros in AC_CONFIG_MACRO_DIRS, 'm4'.
OpenWrt-libtoolize: linking file 'm4/libtool.m4'
OpenWrt-libtoolize: linking file 'm4/ltoptions.m4'
OpenWrt-libtoolize: linking file 'm4/ltsugar.m4'
OpenWrt-libtoolize: linking file 'm4/ltversion.m4'
OpenWrt-libtoolize: linking file 'm4/lt~obsolete.m4'
autoreconf: configure.ac: not using Intltool
autoreconf: configure.ac: not using Gtkdoc
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/target-i386_pentium-mmx_musl/host/share/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/hostpkg/share/aclocal -I /builder/shared-workdir/build/sdk/staging_dir/target-i386_pentium-mmx_musl/usr/share/aclocal -I m4 -I . --force -I m4
autoreconf: running: /builder/shared-workdir/build/sdk/staging_dir/host/bin/autoconf --include=/builder/shared-workdir/build/sdk/staging_dir/target-i386_pentium-mmx_musl/host/share/aclocal --include=/builder/shared-workdir/build/sdk/staging_dir/hostpkg/share/aclocal --include=/builder/shared-workdir/build/sdk/staging_dir/target-i386_pentium-mmx_musl/usr/share/aclocal --include=m4 --include=. --prepend-include=/builder/shared-workdir/build/sdk/staging_dir/host/share/aclocal --force
autom4te: error: /builder/shared-workdir/build/staging_dir/host/share/autoconf/autoconf/trailer.m4: no such file or directory
autoreconf: error: /builder/shared-workdir/build/sdk/staging_dir/host/bin/autoconf failed with exit status: 1
make[4]: Entering directory '/builder/shared-workdir/build/sdk/build_dir/target-i386_pentium-mmx_musl/spandsp3-2023-02-06-67d2455e'
make[4]: *** No targets specified and no makefile found.  Stop.
make[4]: Leaving directory '/builder/shared-workdir/build/sdk/build_dir/target-i386_pentium-mmx_musl/spandsp3-2023-02-06-67d2455e'
make[3]: *** [Makefile:77: /builder/shared-workdir/build/sdk/build_dir/target-i386_pentium-mmx_musl/spandsp3-2023-02-06-67d2455e/.built] Error 2
time: package/feeds/telephony/spandsp3/compile#20.90#0.86#49.91