>>> libzlib 1.2.11 Extracting
xzcat /home/buildroot/autobuild/instance-0/dl/libzlib/zlib-1.2.11.tar.xz | tar --strip-components=1 -C /home/buildroot/autobuild/instance-0/output-1/build/libzlib-1.2.11   -xf -
>>> libzlib 1.2.11 Patching
>>> libzlib 1.2.11 Configuring
(cd /home/buildroot/autobuild/instance-0/output-1/build/libzlib-1.2.11; rm -rf config.cache; ac_cv_lbl_unaligned_fail=yes ac_cv_func_mmap_fixed_mapped=yes ac_cv_func_memcmp_working=yes ac_cv_have_decl_malloc=yes gl_cv_func_malloc_0_nonnull=yes ac_cv_func_malloc_0_nonnull=yes ac_cv_func_calloc_0_nonnull=yes ac_cv_func_realloc_0_nonnull=yes lt_cv_sys_lib_search_path_spec="" ac_cv_c_bigendian=no  PATH="/home/buildroot/autobuild/instance-0/output-1/host/bin:/home/buildroot/autobuild/instance-0/output-1/host/sbin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin" AR="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gcc-ar" AS="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-as" LD="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-ld" NM="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gcc-nm" CC="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gcc" GCC="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gcc" CPP="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-cpp" CXX="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-g++" FC="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gfortran" F77="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gfortran" RANLIB="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-gcc-ranlib" READELF="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-readelf" STRIP="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-strip" OBJCOPY="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-objcopy" OBJDUMP="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-objdump" AR_FOR_BUILD="/usr/bin/ar" AS_FOR_BUILD="/usr/bin/as" CC_FOR_BUILD="/usr/bin/gcc" GCC_FOR_BUILD="/usr/bin/gcc" CXX_FOR_BUILD="/usr/bin/g++" LD_FOR_BUILD="/usr/bin/ld" CPPFLAGS_FOR_BUILD="-I/home/buildroot/autobuild/instance-0/output-1/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/buildroot/autobuild/instance-0/output-1/host/include" LDFLAGS_FOR_BUILD="-L/home/buildroot/autobuild/instance-0/output-1/host/lib -Wl,-rpath,/home/buildroot/autobuild/instance-0/output-1/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-as" DEFAULT_LINKER="/home/buildroot/autobuild/instance-0/output-1/host/bin/riscv64-linux-ld" CPPFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64" CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=2" CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=2" LDFLAGS="" FCFLAGS=" -Os -g0" FFLAGS=" -Os -g0" PKG_CONFIG="/home/buildroot/autobuild/instance-0/output-1/host/bin/pkg-config" STAGING_DIR="/home/buildroot/autobuild/instance-0/output-1/host/riscv64-buildroot-linux-gnu/sysroot" INTLTOOL_PERL=/usr/bin/perl CFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os -g0 -D_FORTIFY_SOURCE=2 -fPIC" ./configure --shared --prefix=/usr )
date: Warning: using $SOURCE_DATE_EPOCH instead of true time
Compiler error reporting is too harsh for ./configure (perhaps remove -Werror).
** ./configure aborting.
package/pkg-generic.mk:272: recipe for target '/home/buildroot/autobuild/instance-0/output-1/build/libzlib-1.2.11/.stamp_configured' failed
make: *** [/home/buildroot/autobuild/instance-0/output-1/build/libzlib-1.2.11/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/autobuild/instance-0/buildroot'