>>> perl-sys-cpu 0.52 Extracting
gzip -d -c /data/buildroot/buildroot-test/instance-1/dl/perl-sys-cpu/Sys-CPU-0.52.tar.gz | /data/buildroot/buildroot-test/instance-1/output/host/bin/tar --strip-components=1 -C /data/buildroot/buildroot-test/instance-1/output/build/perl-sys-cpu-0.52   -xf -
>>> perl-sys-cpu 0.52 Patching
>>> perl-sys-cpu 0.52 Configuring
cd /data/buildroot/buildroot-test/instance-1/output/build/perl-sys-cpu-0.52/ && if [ -f Build.PL ] && [ MB != "EUMM" ] ; then  PERL_MM_USE_DEFAULT=1 PERL5LIB= PERL_USE_UNSAFE_INC=1 /data/buildroot/buildroot-test/instance-1/output/host/bin/perl Build.PL --config ar="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-ar" --config full_ar="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-ar" --config cc="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-gcc" --config ccflags="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  " --config optimize=" " --config ld="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-gcc" --config lddlflags="-shared " --config ldflags="" --include_dirs /data/buildroot/buildroot-test/instance-1/output/host/x86_64-buildroot-linux-musl/sysroot/usr/lib/perl5/5.26.2/x86_64-linux/CORE --destdir /data/buildroot/buildroot-test/instance-1/output/target --installdirs vendor --install_path lib=/usr/lib/perl5/site_perl/5.26.2 --install_path arch=/usr/lib/perl5/site_perl/5.26.2/x86_64-linux --install_path bin=/usr/bin --install_path script=/usr/bin --install_path bindoc=/usr/share/man/man1 --install_path libdoc=/usr/share/man/man3 ; else  PERL_MM_USE_DEFAULT=1 PERL_AUTOINSTALL=--skipdeps PERL5LIB= PERL_USE_UNSAFE_INC=1 /data/buildroot/buildroot-test/instance-1/output/host/bin/perl Makefile.PL AR="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-ar" FULL_AR="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-ar" CC="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-gcc" CCFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  " OPTIMIZE=" " LD="/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-gcc" LDDLFLAGS="-shared " LDFLAGS="" PERL_ARCHLIB=/data/buildroot/buildroot-test/instance-1/output/host/x86_64-buildroot-linux-musl/sysroot/usr/lib/perl5/5.26.2/x86_64-linux DESTDIR=/data/buildroot/buildroot-test/instance-1/output/target INSTALLDIRS=vendor INSTALLVENDORLIB=/usr/lib/perl5/site_perl/5.26.2 INSTALLVENDORARCH=/usr/lib/perl5/site_perl/5.26.2/x86_64-linux INSTALLVENDORBIN=/usr/bin INSTALLVENDORSCRIPT=/usr/bin INSTALLVENDORMAN1DIR=/usr/share/man/man1 INSTALLVENDORMAN3DIR=/usr/share/man/man3 ; fi
Checking if your kit is complete...
Looks good
Generating a Unix-style Makefile
Writing Makefile for Sys::CPU
Writing MYMETA.yml and MYMETA.json
>>> perl-sys-cpu 0.52 Building
cd /data/buildroot/buildroot-test/instance-1/output/build/perl-sys-cpu-0.52/ && if [ -f Build.PL ] && [ MB != "EUMM" ] ; then PERL5LIB= PERL_USE_UNSAFE_INC=1 /data/buildroot/buildroot-test/instance-1/output/host/bin/perl Build  build; else /usr/bin/make -j1 FIXIN=:  pure_all; fi
make[1]: Entering directory '/data/buildroot/buildroot-test/instance-1/output/build/perl-sys-cpu-0.52'
cp CPU.pm blib/lib/Sys/CPU.pm
Running Mkbootstrap for CPU ()
chmod 644 "CPU.bs"
"/data/buildroot/buildroot-test/instance-1/output/host/bin/perl" -MExtUtils::Command::MM -e 'cp_nonempty' -- CPU.bs blib/arch/auto/Sys/CPU/CPU.bs 644
"/data/buildroot/buildroot-test/instance-1/output/host/bin/perl" "/data/buildroot/buildroot-test/instance-1/output/host/lib/perl5/5.26.2/ExtUtils/xsubpp"  -typemap '/data/buildroot/buildroot-test/instance-1/output/host/lib/perl5/5.26.2/ExtUtils/typemap'  CPU.xs > CPU.xsc
Please specify prototyping behavior for CPU.xs (see perlxs manual)
mv CPU.xsc CPU.c
/data/buildroot/buildroot-test/instance-1/output/host/bin/x86_64-linux-gcc -c   -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os      -DVERSION=\"0.52\" -DXS_VERSION=\"0.52\" -fPIC "-I/data/buildroot/buildroot-test/instance-1/output/host/x86_64-buildroot-linux-musl/sysroot/usr/lib/perl5/5.26.2/x86_64-linux/CORE"   CPU.c
CPU.xs:27:25: fatal error: sys/unistd.h: No such file or directory
  #include <sys/unistd.h>
                         ^
compilation terminated.
make[1]: *** [Makefile:333: CPU.o] Error 1
make[1]: Leaving directory '/data/buildroot/buildroot-test/instance-1/output/build/perl-sys-cpu-0.52'
make: *** [package/pkg-generic.mk:232: /data/buildroot/buildroot-test/instance-1/output/build/perl-sys-cpu-0.52/.stamp_built] Error 2
make: Leaving directory '/data/buildroot/buildroot-test/instance-1/buildroot'