Applying ./patches/100-remove-devel-checklib-checks.patch using plaintext: 
patching file Makefile.PL
Hunk #2 succeeded at 12 (offset 1 line).
Warning: prerequisite Authen::SASL 2.08 not found.
Checking if your kit is complete...
Looks good
Generating a Unix-style Makefile
Writing Makefile for Authen::SASL::XS
Writing MYMETA.yml and MYMETA.json
make[4]: Entering directory '/builder/shared-workdir/build/sdk/build_dir/target-arc_arc700_uClibc/perl/Authen-SASL-XS-1.00'
cp XS.pm blib/lib/Authen/SASL/XS.pm
cp lib/Authen/SASL/XS/Security.pm blib/lib/Authen/SASL/XS/Security.pm
cp XS.pod blib/lib/Authen/SASL/XS.pod
Running Mkbootstrap for XS ()
chmod 644 "XS.bs"
"/builder/shared-workdir/build/sdk/staging_dir/hostpkg/usr/bin/perl5.28.0" -MExtUtils::Command::MM -e 'cp_nonempty' -- XS.bs blib/arch/auto/Authen/SASL/XS/XS.bs 644
"/builder/shared-workdir/build/sdk/staging_dir/hostpkg/usr/bin/perl5.28.0" "/builder/shared-workdir/build/sdk/staging_dir/hostpkg/usr/lib/perl5/5.28.0/ExtUtils/xsubpp"  -typemap '/builder/shared-workdir/build/sdk/staging_dir/hostpkg/usr/lib/perl5/5.28.0/ExtUtils/typemap' -typemap '/builder/shared-workdir/build/sdk/build_dir/target-arc_arc700_uClibc/perl/Authen-SASL-XS-1.00/typemap'  XS.xs > XS.xsc
Please specify prototyping behavior for XS.xs (see perlxs manual)
mv XS.xsc XS.c
arc-openwrt-linux-gcc -c  -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Os -pipe -matomic -mcpu=arc700 -fno-caller-saves -fhonour-copts -Wno-error=unused-but-set-variable -Wno-error=unused-result -iremap/builder/shared-workdir/build/sdk/build_dir/target-arc_arc700_uClibc/perl/Authen-SASL-XS-1.00:Authen-SASL-XS-1.00 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=1 -Wl,-z,now -Wl,-z,relro -I/builder/shared-workdir/build/sdk/staging_dir/target-arc_arc700_uClibc/usr/include -I/builder/shared-workdir/build/sdk/staging_dir/target-arc_arc700_uClibc/include -I/builder/shared-workdir/build/sdk/staging_dir/toolchain-arc_arc700_gcc-arc-2017.09-release_uClibc/usr/include -I/builder/shared-workdir/build/sdk/staging_dir/toolchain-arc_arc700_gcc-arc-2017.09-release_uClibc/include -O2   -DVERSION=\"1.00\" -DXS_VERSION=\"1.00\" -fPIC "-I/builder/shared-workdir/build/sdk/staging_dir/target-arc_arc700_uClibc/usr/lib/perl5/5.28/CORE/"  -DSASL2 XS.c
XS.xs:42:10: fatal error: EXTERN.h: No such file or directory
 #include <EXTERN.h>
          ^~~~~~~~~~
compilation terminated.
Makefile:340: recipe for target 'XS.o' failed
make[4]: *** [XS.o] Error 1
make[4]: Leaving directory '/builder/shared-workdir/build/sdk/build_dir/target-arc_arc700_uClibc/perl/Authen-SASL-XS-1.00'
Makefile:50: recipe for target '/builder/shared-workdir/build/sdk/build_dir/target-arc_arc700_uClibc/perl/Authen-SASL-XS-1.00/.built' failed
make[3]: *** [/builder/shared-workdir/build/sdk/build_dir/target-arc_arc700_uClibc/perl/Authen-SASL-XS-1.00/.built] Error 2
time: package/feeds/packages/perl-authen-sasl-xs/compile#0.72#0.35#1.86