>>> libzlib 1.2.11 Downloading
converted 'http://www.zlib.net/zlib-1.2.11.tar.xz' (ANSI_X3.4-1968) -> 'http://www.zlib.net/zlib-1.2.11.tar.xz' (UTF-8)
--2019-09-22 08:53:03--  http://www.zlib.net/zlib-1.2.11.tar.xz
Resolving www.zlib.net (www.zlib.net)... 68.66.224.49
Connecting to www.zlib.net (www.zlib.net)|68.66.224.49|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 467960 (457K) [application/x-xz]
Saving to: '/home/buildroot/build/instance-0/output-1/build/.zlib-1.2.11.tar.xz.FiWK0m/output'

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2019-09-22 08:53:05 (585 KB/s) - '/home/buildroot/build/instance-0/output-1/build/.zlib-1.2.11.tar.xz.FiWK0m/output' saved [467960/467960]

zlib-1.2.11.tar.xz: OK (sha256: 4ff941449631ace0d4d203e3483be9dbc9da454084111f97ea0a2114e19bf066)
>>> libzlib 1.2.11 Extracting
xzcat /home/buildroot/build/instance-0/dl/libzlib/zlib-1.2.11.tar.xz | tar --strip-components=1 -C /home/buildroot/build/instance-0/output-1/build/libzlib-1.2.11   -xf -
>>> libzlib 1.2.11 Patching
>>> libzlib 1.2.11 Configuring
(cd /home/buildroot/build/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/build/instance-0/output-1/host/bin:/home/buildroot/build/instance-0/output-1/host/sbin:/sbin:/usr/sbin:/bin:/usr/bin" AR="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-ar" AS="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-as" LD="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-ld" NM="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-nm" CC="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-gcc" GCC="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-gcc" CPP="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-cpp" CXX="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-g++" FC="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-gfortran" F77="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-gfortran" RANLIB="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-ranlib" READELF="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-readelf" STRIP="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-strip" OBJCOPY="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-objcopy" OBJDUMP="/home/buildroot/build/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/build/instance-0/output-1/host/include" CFLAGS_FOR_BUILD="-O2 -I/home/buildroot/build/instance-0/output-1/host/include" CXXFLAGS_FOR_BUILD="-O2 -I/home/buildroot/build/instance-0/output-1/host/include" LDFLAGS_FOR_BUILD="-L/home/buildroot/build/instance-0/output-1/host/lib -Wl,-rpath,/home/buildroot/build/instance-0/output-1/host/lib" FCFLAGS_FOR_BUILD="" DEFAULT_ASSEMBLER="/home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-as" DEFAULT_LINKER="/home/buildroot/build/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  " CXXFLAGS="-D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64  -Os  " LDFLAGS="" FCFLAGS=" -Os " FFLAGS=" -Os " PKG_CONFIG="/home/buildroot/build/instance-0/output-1/host/bin/pkg-config" STAGING_DIR="/home/buildroot/build/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   -fPIC" ./configure --shared --prefix=/usr )
Checking for shared library support...
No shared library support; try without defining CC and CFLAGS
Building static library libz.a version 1.2.11 with /home/buildroot/build/instance-0/output-1/host/bin/riscv64-linux-gcc.
Checking for size_t... No.
Checking for long long... Yes.
Failed to find a pointer-size integer type.
** ./configure aborting.
package/pkg-generic.mk:228: recipe for target '/home/buildroot/build/instance-0/output-1/build/libzlib-1.2.11/.stamp_configured' failed
make: *** [/home/buildroot/build/instance-0/output-1/build/libzlib-1.2.11/.stamp_configured] Error 1
make: Leaving directory '/home/buildroot/build/instance-0/buildroot'