Build of gf2x with clang_glibc toolchain

# [tuscan]
# Server = file:///var/cache/pacman/pkg/

# :: Synchronizing package databases...
# downloading tuscan.db...

# /toolchain_root/sysroot --> /sysroot/sysroot
# /toolchain_root/lib --> /sysroot/lib
# /toolchain_root/sbin --> /sysroot/sbin
# /toolchain_root/lib64 --> /sysroot/lib64
# /toolchain_root/etc --> /sysroot/etc
# /toolchain_root/share --> /sysroot/share
# /toolchain_root/bin --> /sysroot/bin
# /toolchain_root/var --> /sysroot/var
# /toolchain_root/usr --> /sysroot/usr
# /toolchain_root/glibc-build --> /sysroot/glibc-build
# /toolchain_root/x86_64-pc-linux-gnu --> /sysroot/x86_64-pc-linux-gnu
# /toolchain_root/include --> /sysroot/include
# /toolchain_root/libexec --> /sysroot/libexec

# ==> Making package: gf2x 1.1-2 (Thu Apr 13 11:35:09 UTC 2017)
# ==> Checking runtime dependencies...
# ==> Checking buildtime dependencies...
# ==> WARNING: Using existing $srcdir/ tree
# ==> Starting build()...
# configure: WARNING: if you wanted to set the --build type, don't use --host.
# If a cross compiler is detected then cross compile mode will be used
# checking build system type... x86_64-unknown-linux-gnu
# checking host system type... x86_64-unknown-linux-gnu
# checking target system type... x86_64-unknown-linux-gnu
# checking for a BSD-compatible install... /usr/bin/install -c
# checking whether build environment is sane... yes
# checking for x86_64-unknown-linux-strip... no
# checking for strip... strip
# checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
# checking for gawk... gawk
# checking whether make sets $(MAKE)... yes
# checking how to print strings... printf
# checking for style of include used by make... GNU
# checking for x86_64-unknown-linux-gcc... clang
# checking whether the C compiler works... yes
# checking for C compiler default output file name... a.out
# checking for suffix of executables...
# checking whether we are cross compiling... no
# checking for suffix of object files... o
# checking whether we are using the GNU C compiler... yes
# checking whether clang accepts -g... yes
# checking for clang option to accept ISO C89... none needed
# checking dependency style of clang... gcc3
# checking for a sed that does not truncate output... /usr/bin/sed
# checking for grep that handles long lines and -e... /usr/bin/grep
# checking for egrep... /usr/bin/grep -E
# checking for fgrep... /usr/bin/grep -F
# checking for ld used by clang... /usr/bin/ld
# checking if the linker (/usr/bin/ld) is GNU ld... yes
# checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
# checking the name lister (/usr/bin/nm -B) interface... BSD nm
# checking whether ln -s works... yes
# checking the maximum length of command line arguments... 1572864
# checking whether the shell understands some XSI constructs... yes
# checking whether the shell understands "+="... yes
# checking how to convert x86_64-unknown-linux-gnu file names to x86_64-unknown-linux-gnu format... func_convert_file_noop
# checking how to convert x86_64-unknown-linux-gnu file names to toolchain format... func_convert_file_noop
# checking for /usr/bin/ld option to reload object files... -r
# checking for x86_64-unknown-linux-objdump... no
# checking for objdump... objdump
# checking how to recognize dependent libraries... pass_all
# checking for x86_64-unknown-linux-dlltool... no
# checking for dlltool... no
# checking how to associate runtime and link libraries... printf %s\n
# checking for x86_64-unknown-linux-ar... no
# checking for ar... ar
# checking for archiver @FILE support... @
# checking for x86_64-unknown-linux-strip... strip
# checking for x86_64-unknown-linux-ranlib... no
# checking for ranlib... ranlib
# checking command to parse /usr/bin/nm -B output from clang object... ok
# checking for sysroot... no
# checking for x86_64-unknown-linux-mt... no
# checking for mt... no
# checking if : is a manifest tool... no
# checking how to run the C preprocessor... clang -E
# checking for ANSI C header files... yes
# checking for sys/types.h... yes
# checking for sys/stat.h... yes
# checking for stdlib.h... yes
# checking for string.h... yes
# checking for memory.h... yes
# checking for strings.h... yes
# checking for inttypes.h... yes
# checking for stdint.h... yes
# checking for unistd.h... yes
# checking for dlfcn.h... yes
# checking for objdir... .libs
# checking if clang supports -fno-rtti -fno-exceptions... yes
# checking for clang option to produce PIC... -fPIC -DPIC
# checking if clang PIC flag -fPIC -DPIC works... yes
# checking if clang static flag -static works... yes
# checking if clang supports -c -o file.o... yes
# checking if clang supports -c -o file.o... (cached) yes
# checking whether the clang linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
# checking whether -lc should be explicitly linked in... no
# checking dynamic linker characteristics... GNU/Linux ld.so
# checking how to hardcode library paths into programs... immediate
# checking whether stripping libraries is possible... yes
# checking if libtool supports shared libraries... yes
# checking whether to build shared libraries... yes
# checking whether to build static libraries... yes
# checking for x86_64-unknown-linux-gcc... (cached) clang
# checking whether we are using the GNU C compiler... (cached) yes
# checking whether clang accepts -g... (cached) yes
# checking for clang option to accept ISO C89... (cached) none needed
# checking dependency style of clang... (cached) gcc3
# checking whether we are using the GNU C++ compiler... yes
# checking whether clang++ accepts -g... yes
# checking dependency style of clang++... gcc3
# checking how to run the C++ preprocessor... clang++ -E
# checking for ld used by clang++... /usr/bin/ld -m elf_x86_64
# checking if the linker (/usr/bin/ld -m elf_x86_64) is GNU ld... yes
# checking whether the clang++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
# checking for clang++ option to produce PIC... -fPIC -DPIC
# checking if clang++ PIC flag -fPIC -DPIC works... yes
# checking if clang++ static flag -static works... yes
# checking if clang++ supports -c -o file.o... yes
# checking if clang++ supports -c -o file.o... (cached) yes
# checking whether the clang++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries... yes
# checking dynamic linker characteristics... (cached) GNU/Linux ld.so
# checking how to hardcode library paths into programs... immediate
# checking warning verbosity option... -Wall -W for C++ -Wall -W for C
# checking for clang option to accept ISO C99... none needed
# checking build system compiler clang... yes
# checking for build system executable suffix...
# checking whether clang and cc understand -c and -o together... yes
# checking size of unsigned long... 8
# checking whether clang can compile and run sse-2 code... yes
# checking whether clang can compile pclmulqdq and if it is supported by the hardware... disabled, no
# checking the number of bits in an unsigned long... 64
# configure: using ABI="default"
# configure: CC="clang"
# configure: CFLAGS=" -msse2 -Wall -W"
# configure: CPPFLAGS=""
# configure: hwdir="x86_64"
# checking whether already_tuned/x86_64/ is right assuming 64-bits unsigned longs... yes
# configure: creating ./config.status
# config.status: creating version.sh
# config.status: creating Makefile
# config.status: creating tests/Makefile
# config.status: creating apps/Makefile
# config.status: creating src/Makefile
# config.status: creating gf2x/gf2x-config.h
# config.status: linking already_tuned/x86_64/gf2x-thresholds.h to gf2x/gf2x-thresholds.h
# config.status: linking already_tuned/x86_64/gf2x_mul1.h to gf2x/gf2x_mul1.h
# config.status: linking already_tuned/x86_64/gf2x_mul2.h to gf2x/gf2x_mul2.h
# config.status: linking already_tuned/x86_64/gf2x_mul3.h to gf2x/gf2x_mul3.h
# config.status: linking already_tuned/x86_64/gf2x_mul4.h to gf2x/gf2x_mul4.h
# config.status: linking already_tuned/x86_64/gf2x_mul5.h to gf2x/gf2x_mul5.h
# config.status: linking already_tuned/x86_64/gf2x_mul6.h to gf2x/gf2x_mul6.h
# config.status: linking already_tuned/x86_64/gf2x_mul7.h to gf2x/gf2x_mul7.h
# config.status: linking already_tuned/x86_64/gf2x_mul8.h to gf2x/gf2x_mul8.h
# config.status: linking already_tuned/x86_64/gf2x_mul9.h to gf2x/gf2x_mul9.h
# config.status: executing depfiles commands
# config.status: executing libtool commands
# Making all in .
# make[1]: Entering directory '/tmp/gf2x/src/gf2x-1.1'
# /bin/sh ./libtool --tag=CC --mode=compile clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT gf2x.lo -MD -MP -MF .deps/gf2x.Tpo -c -o gf2x.lo gf2x.c
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT gf2x.lo -MD -MP -MF .deps/gf2x.Tpo -c gf2x.c -fPIC -DPIC -o .libs/gf2x.o
# gf2x.c:82:24: warning: sizeof on array function parameter will return size of 'struct gf2x_mul_pool_s *' instead of 'gf2x_mul_pool_t' (aka 'struct gf2x_mul_pool_s [1]') [-Wsizeof-array-argument]
# memset(p, 0, sizeof(p));
# ^
# gf2x.c:80:41: note: declared here
# void gf2x_mul_pool_init(gf2x_mul_pool_t p)
# ^
# gf2x.c:82:25: warning: 'memset' call operates on objects of type 'struct gf2x_mul_pool_s' while the size is based on a different type 'struct gf2x_mul_pool_s *' [-Wsizeof-pointer-memaccess]
# memset(p, 0, sizeof(p));
# ~ ^
# gf2x.c:82:25: note: did you mean to dereference the argument to 'sizeof' (and multiply it by the number of elements)?
# memset(p, 0, sizeof(p));
# ^
# 2 warnings generated.
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT gf2x.lo -MD -MP -MF .deps/gf2x.Tpo -c gf2x.c -o gf2x.o >/dev/null 2>&1
# mv -f .deps/gf2x.Tpo .deps/gf2x.Plo
# /bin/sh ./libtool --tag=CC --mode=compile clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT toom.lo -MD -MP -MF .deps/toom.Tpo -c -o toom.lo toom.c
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT toom.lo -MD -MP -MF .deps/toom.Tpo -c toom.c -fPIC -DPIC -o .libs/toom.o
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT toom.lo -MD -MP -MF .deps/toom.Tpo -c toom.c -o toom.o >/dev/null 2>&1
# mv -f .deps/toom.Tpo .deps/toom.Plo
# /bin/sh ./libtool --tag=CC --mode=compile clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT toom2.lo -MD -MP -MF .deps/toom2.Tpo -c -o toom2.lo toom2.c
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT toom2.lo -MD -MP -MF .deps/toom2.Tpo -c toom2.c -fPIC -DPIC -o .libs/toom2.o
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT toom2.lo -MD -MP -MF .deps/toom2.Tpo -c toom2.c -o toom2.o >/dev/null 2>&1
# mv -f .deps/toom2.Tpo .deps/toom2.Plo
# /bin/sh ./libtool --tag=CC --mode=compile clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT fft.lo -MD -MP -MF .deps/fft.Tpo -c -o fft.lo fft.c
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT fft.lo -MD -MP -MF .deps/fft.Tpo -c fft.c -fPIC -DPIC -o .libs/fft.o
# libtool: compile: clang -DHAVE_CONFIG_H -I. -I./gf2x -I. -I. -msse2 -Wall -W -MT fft.lo -MD -MP -MF .deps/fft.Tpo -c fft.c -o fft.o >/dev/null 2>&1
# mv -f .deps/fft.Tpo .deps/fft.Plo
# /bin/sh ./libtool --tag=CC --mode=link clang -msse2 -Wall -W -version-info 1:0:0 -o libgf2x.la -rpath /usr/lib gf2x.lo toom.lo toom2.lo fft.lo
# libtool: link: clang -shared -fPIC -DPIC .libs/gf2x.o .libs/toom.o .libs/toom2.o .libs/fft.o -msse2 -Wl,-soname -Wl,libgf2x.so.1 -o .libs/libgf2x.so.1.0.0
# libtool: link: (cd ".libs" && rm -f "libgf2x.so.1" && ln -s "libgf2x.so.1.0.0" "libgf2x.so.1")
# libtool: link: (cd ".libs" && rm -f "libgf2x.so" && ln -s "libgf2x.so.1.0.0" "libgf2x.so")
# libtool: link: ar cru .libs/libgf2x.a gf2x.o toom.o toom2.o fft.o
# ar: `u' modifier ignored since `D' is the default (see `U')
# libtool: link: ranlib .libs/libgf2x.a
# libtool: link: ( cd ".libs" && rm -f "libgf2x.la" && ln -s "../libgf2x.la" "libgf2x.la" )
# make[1]: Leaving directory '/tmp/gf2x/src/gf2x-1.1'
# Making all in tests
# make[1]: Entering directory '/tmp/gf2x/src/gf2x-1.1/tests'
# make[1]: Nothing to be done for 'all'.
# make[1]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/tests'
# Making all in src
# make[1]: Entering directory '/tmp/gf2x/src/gf2x-1.1/src'
# sed -e s/@@SIZE@@/1/g < ./tuneup_pre.c > tuneup_1.c
# sed -e s/@@SIZE@@/1/g < ./tuning_undefs_pre.h > tuning_undefs_1.h
# sed -e s/@@SIZE@@/2/g < ./tuneup_pre.c > tuneup_2.c
# sed -e s/@@SIZE@@/2/g < ./tuning_undefs_pre.h > tuning_undefs_2.h
# sed -e s/@@SIZE@@/3/g < ./tuneup_pre.c > tuneup_3.c
# sed -e s/@@SIZE@@/3/g < ./tuning_undefs_pre.h > tuning_undefs_3.h
# sed -e s/@@SIZE@@/4/g < ./tuneup_pre.c > tuneup_4.c
# sed -e s/@@SIZE@@/4/g < ./tuning_undefs_pre.h > tuning_undefs_4.h
# sed -e s/@@SIZE@@/5/g < ./tuneup_pre.c > tuneup_5.c
# sed -e s/@@SIZE@@/5/g < ./tuning_undefs_pre.h > tuning_undefs_5.h
# sed -e s/@@SIZE@@/6/g < ./tuneup_pre.c > tuneup_6.c
# sed -e s/@@SIZE@@/6/g < ./tuning_undefs_pre.h > tuning_undefs_6.h
# sed -e s/@@SIZE@@/7/g < ./tuneup_pre.c > tuneup_7.c
# sed -e s/@@SIZE@@/7/g < ./tuning_undefs_pre.h > tuning_undefs_7.h
# sed -e s/@@SIZE@@/8/g < ./tuneup_pre.c > tuneup_8.c
# sed -e s/@@SIZE@@/8/g < ./tuning_undefs_pre.h > tuning_undefs_8.h
# sed -e s/@@SIZE@@/9/g < ./tuneup_pre.c > tuneup_9.c
# sed -e s/@@SIZE@@/9/g < ./tuning_undefs_pre.h > tuning_undefs_9.h
# clang `test -f 'gen_bb_mul_code.c' || echo './'`gen_bb_mul_code.c -o gen_bb_mul_code
# ./gen_bb_mul_code 64 2 > gen_mul1_w64k2.c
# ./gen_bb_mul_code 64 3 > gen_mul1_w64k3.c
# ./gen_bb_mul_code 64 4 > gen_mul1_w64k4.c
# ./gen_bb_mul_code 64 5 > gen_mul1_w64k5.c
# ./gen_bb_mul_code 64 6 > gen_mul1_w64k6.c
# make all-am
# make[2]: Entering directory '/tmp/gf2x/src/gf2x-1.1/src'
# make[2]: Nothing to be done for 'all-am'.
# make[2]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/src'
# make[1]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/src'
# ==> Entering fakeroot environment...
# ==> Starting package()...
# Making install in .
# make[1]: Entering directory '/tmp/gf2x/src/gf2x-1.1'
# make[2]: Entering directory '/tmp/gf2x/src/gf2x-1.1'
# test -z "/tmp/gf2x/pkg/gf2x/usr/lib" || /usr/bin/mkdir -p "/tmp/gf2x/pkg/gf2x/usr/lib"
# /bin/sh ./libtool --mode=install /usr/bin/install -c libgf2x.la '/tmp/gf2x/pkg/gf2x/usr/lib'
# libtool: install: /usr/bin/install -c .libs/libgf2x.so.1.0.0 /tmp/gf2x/pkg/gf2x/usr/lib/libgf2x.so.1.0.0
# libtool: install: (cd /tmp/gf2x/pkg/gf2x/usr/lib && { ln -s -f libgf2x.so.1.0.0 libgf2x.so.1 || { rm -f libgf2x.so.1 && ln -s libgf2x.so.1.0.0 libgf2x.so.1; }; })
# libtool: install: (cd /tmp/gf2x/pkg/gf2x/usr/lib && { ln -s -f libgf2x.so.1.0.0 libgf2x.so || { rm -f libgf2x.so && ln -s libgf2x.so.1.0.0 libgf2x.so; }; })
# libtool: install: /usr/bin/install -c .libs/libgf2x.lai /tmp/gf2x/pkg/gf2x/usr/lib/libgf2x.la
# libtool: install: /usr/bin/install -c .libs/libgf2x.a /tmp/gf2x/pkg/gf2x/usr/lib/libgf2x.a
# libtool: install: chmod 644 /tmp/gf2x/pkg/gf2x/usr/lib/libgf2x.a
# libtool: install: ranlib /tmp/gf2x/pkg/gf2x/usr/lib/libgf2x.a
# libtool: install: warning: remember to run `libtool --finish /usr/lib'
# test -z "/tmp/gf2x/pkg/gf2x/usr/include" || /usr/bin/mkdir -p "/tmp/gf2x/pkg/gf2x/usr/include"
# /usr/bin/install -c -m 644 gf2x.h '/tmp/gf2x/pkg/gf2x/usr/include/.'
# /usr/bin/mkdir -p '/tmp/gf2x/pkg/gf2x/usr/include/gf2x'
# /usr/bin/install -c -m 644 gf2x/gf2x-impl.h gf2x/gf2x-tfft.h gf2x/gf2x-small.h '/tmp/gf2x/pkg/gf2x/usr/include/gf2x'
# test -z "/tmp/gf2x/pkg/gf2x/usr/include" || /usr/bin/mkdir -p "/tmp/gf2x/pkg/gf2x/usr/include"
# /usr/bin/mkdir -p '/tmp/gf2x/pkg/gf2x/usr/include/gf2x'
# /usr/bin/install -c -m 644 gf2x/gf2x-config.h gf2x/gf2x-thresholds.h gf2x/gf2x_mul1.h gf2x/gf2x_mul2.h gf2x/gf2x_mul3.h gf2x/gf2x_mul4.h gf2x/gf2x_mul5.h gf2x/gf2x_mul6.h gf2x/gf2x_mul7.h gf2x/gf2x_mul8.h gf2x/gf2x_mul9.h '/tmp/gf2x/pkg/gf2x/usr/include/gf2x'
# make[2]: Leaving directory '/tmp/gf2x/src/gf2x-1.1'
# make[1]: Leaving directory '/tmp/gf2x/src/gf2x-1.1'
# Making install in tests
# make[1]: Entering directory '/tmp/gf2x/src/gf2x-1.1/tests'
# make[2]: Entering directory '/tmp/gf2x/src/gf2x-1.1/tests'
# make[2]: Nothing to be done for 'install-exec-am'.
# make[2]: Nothing to be done for 'install-data-am'.
# make[2]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/tests'
# make[1]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/tests'
# Making install in src
# make[1]: Entering directory '/tmp/gf2x/src/gf2x-1.1/src'
# make install-am
# make[2]: Entering directory '/tmp/gf2x/src/gf2x-1.1/src'
# make[3]: Entering directory '/tmp/gf2x/src/gf2x-1.1/src'
# make[3]: Nothing to be done for 'install-exec-am'.
# make[3]: Nothing to be done for 'install-data-am'.
# make[3]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/src'
# make[2]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/src'
# make[1]: Leaving directory '/tmp/gf2x/src/gf2x-1.1/src'
# ==> Tidying install...
# -> Removing doc files...
# -> Purging unwanted files...
# ==> Checking for packaging issue...
# ==> Creating package "gf2x"...
# -> Generating .PKGINFO file...
# -> Generating .BUILDINFO file...
# error: invalid option '--noprogressbar'
# -> Generating .MTREE file...
# -> Compressing package...
# ==> Leaving fakeroot environment.
# ==> Finished making: gf2x 1.1-2 (Thu Apr 13 11:36:14 UTC 2017)

# gf2x 1.1-2

# gf2x 1.1-2

# /.PKGINFO
# /.MTREE
# /usr/include/gf2x.h
# /usr/include/gf2x/gf2x-config.h
# /usr/include/gf2x/gf2x-thresholds.h
# /usr/include/gf2x/gf2x-impl.h
# /usr/include/gf2x/gf2x_mul1.h
# /usr/include/gf2x/gf2x-tfft.h
# /usr/include/gf2x/gf2x_mul2.h
# /usr/include/gf2x/gf2x-small.h
# /usr/include/gf2x/gf2x_mul3.h
# /usr/include/gf2x/gf2x_mul4.h
# /usr/include/gf2x/gf2x_mul5.h
# /usr/include/gf2x/gf2x_mul6.h
# /usr/include/gf2x/gf2x_mul7.h
# /usr/include/gf2x/gf2x_mul8.h
# /usr/include/gf2x/gf2x_mul9.h
# /usr/lib/libgf2x.so.1
# /usr/lib/libgf2x.so
# /usr/lib/libgf2x.so.1.0.0
# /sysroot/usr/lib/libgf2x.so.1.0.0
# /sysroot/usr/lib/libgf2x.so.1
# /sysroot/usr/lib/libgf2x.so
# /sysroot/usr/lib/libgf2x.la
# /sysroot/usr/lib/libgf2x.a
# /sysroot/usr/include/gf2x.h
# /sysroot/usr/include/gf2x/gf2x-impl.h
# /sysroot/usr/include/gf2x/gf2x-tfft.h
# /sysroot/usr/include/gf2x/gf2x-small.h
# /sysroot/usr/include/gf2x/gf2x-config.h
# /sysroot/usr/include/gf2x/gf2x-thresholds.h
# /sysroot/usr/include/gf2x/gf2x_mul1.h
# /sysroot/usr/include/gf2x/gf2x_mul2.h
# /sysroot/usr/include/gf2x/gf2x_mul3.h
# /sysroot/usr/include/gf2x/gf2x_mul4.h
# /sysroot/usr/include/gf2x/gf2x_mul5.h
# /sysroot/usr/include/gf2x/gf2x_mul6.h
# /sysroot/usr/include/gf2x/gf2x_mul7.h
# /sysroot/usr/include/gf2x/gf2x_mul8.h
# /sysroot/usr/include/gf2x/gf2x_mul9.h

# .PKGINFO

# ==> Extracting database to a temporary location...
# ==> Extracting database to a temporary location...
# ==> Adding package '/var/cache/pacman/pkg/gf2x.pkg.tar.xz'
# -> Computing checksums...
# -> Creating 'desc' db entry...
# -> Creating 'files' db entry...
# ==> Creating updated database file '/var/cache/pacman/pkg/tuscan.db.tar'

# This file contains any messages produced by compilers while
# running configure, to aid debugging if configure makes a mistake.
#
# It was created by gf2x configure 1.1, which was
# generated by GNU Autoconf 2.68. Invocation command line was
#
# $ ./configure --host=x86_64-unknown-linux --prefix=/usr --enable-sse2 --disable-pclmul CFLAGS= -msse2
#
# ## --------- ##
# ## Platform. ##
# ## --------- ##
#
# hostname = 3e1ddcde6156
# uname -m = x86_64
# uname -r = 4.10.6-1-ARCH
# uname -s = Linux
# uname -v = #1 SMP PREEMPT Mon Mar 27 08:28:22 CEST 2017
#
# /usr/bin/uname -p = unknown
# /bin/uname -X = unknown
#
# /bin/arch = unknown
# /usr/bin/arch -k = unknown
# /usr/convex/getsysinfo = unknown
# /usr/bin/hostinfo = unknown
# /bin/machine = unknown
# /usr/bin/oslevel = unknown
# /bin/universe = unknown
#
# PATH: /usr/bin
# PATH: /usr/local/sbin
# PATH: /usr/local/bin
# PATH: /usr/sbin
# PATH: /usr/bin
# PATH: /sbin
# PATH: /bin
#
#
# ## ----------- ##
# ## Core tests. ##
# ## ----------- ##
#
# configure:2461: checking build system type
# configure:2475: result: x86_64-unknown-linux-gnu
# configure:2495: checking host system type
# configure:2508: result: x86_64-unknown-linux-gnu
# configure:2528: checking target system type
# configure:2541: result: x86_64-unknown-linux-gnu
# configure:2594: checking for a BSD-compatible install
# configure:2662: result: /usr/bin/install -c
# configure:2673: checking whether build environment is sane
# configure:2723: result: yes
# configure:2772: checking for x86_64-unknown-linux-strip
# configure:2802: result: no
# configure:2812: checking for strip
# configure:2828: found /usr/bin/strip
# configure:2839: result: strip
# configure:2864: checking for a thread-safe mkdir -p
# configure:2903: result: /usr/bin/mkdir -p
# configure:2916: checking for gawk
# configure:2932: found /usr/bin/gawk
# configure:2943: result: gawk
# configure:2954: checking whether make sets $(MAKE)
# configure:2976: result: yes
# configure:3103: checking how to print strings
# configure:3130: result: printf
# configure:3163: checking for style of include used by make
# configure:3191: result: GNU
# configure:3221: checking for x86_64-unknown-linux-gcc
# configure:3248: result: clang
# configure:3517: checking for C compiler version
# configure:3526: clang --version >&5
# clang version 3.8.0 (tags/RELEASE_380/final)
# Target: x86_64-unknown-linux-gnu
# Thread model: posix
# InstalledDir: /usr/bin
# configure:3537: $? = 0
# configure:3526: clang -v >&5
# clang version 3.8.0 (tags/RELEASE_380/final)
# Target: x86_64-unknown-linux-gnu
# Thread model: posix
# InstalledDir: /usr/bin
# Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Selected GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Candidate multilib: .;@m64
# ... rest of stderr output deleted ...
# configure:3537: $? = 0
# configure:3526: clang -V >&5
# clang-3.8: error: argument to '-V' is missing (expected 1 value)
# clang-3.8: error: no input files
# configure:3537: $? = 1
# configure:3526: clang -qversion >&5
# clang-3.8: error: unknown argument: '-qversion'
# clang-3.8: error: no input files
# configure:3537: $? = 1
# configure:3557: checking whether the C compiler works
# configure:3579: clang -msse2 conftest.c >&5
# configure:3583: $? = 0
# configure:3631: result: yes
# configure:3634: checking for C compiler default output file name
# configure:3636: result: a.out
# configure:3642: checking for suffix of executables
# configure:3649: clang -o conftest -msse2 conftest.c >&5
# configure:3653: $? = 0
# configure:3675: result:
# configure:3697: checking whether we are cross compiling
# configure:3705: clang -o conftest -msse2 conftest.c >&5
# configure:3709: $? = 0
# configure:3716: ./conftest
# configure:3720: $? = 0
# configure:3735: result: no
# configure:3740: checking for suffix of object files
# configure:3762: clang -c -msse2 conftest.c >&5
# configure:3766: $? = 0
# configure:3787: result: o
# configure:3791: checking whether we are using the GNU C compiler
# configure:3810: clang -c -msse2 conftest.c >&5
# configure:3810: $? = 0
# configure:3819: result: yes
# configure:3828: checking whether clang accepts -g
# configure:3848: clang -c -g conftest.c >&5
# configure:3848: $? = 0
# configure:3889: result: yes
# configure:3906: checking for clang option to accept ISO C89
# configure:3970: clang -c -msse2 conftest.c >&5
# configure:3970: $? = 0
# configure:3983: result: none needed
# configure:4005: checking dependency style of clang
# configure:4115: result: gcc3
# configure:4130: checking for a sed that does not truncate output
# configure:4194: result: /usr/bin/sed
# configure:4212: checking for grep that handles long lines and -e
# configure:4270: result: /usr/bin/grep
# configure:4275: checking for egrep
# configure:4337: result: /usr/bin/grep -E
# configure:4342: checking for fgrep
# configure:4404: result: /usr/bin/grep -F
# configure:4439: checking for ld used by clang
# configure:4506: result: /usr/bin/ld
# configure:4513: checking if the linker (/usr/bin/ld) is GNU ld
# configure:4528: result: yes
# configure:4540: checking for BSD- or MS-compatible name lister (nm)
# configure:4589: result: /usr/bin/nm -B
# configure:4719: checking the name lister (/usr/bin/nm -B) interface
# configure:4726: clang -c -msse2 conftest.c >&5
# configure:4729: /usr/bin/nm -B "conftest.o"
# configure:4732: output
# 0000000000000000 B some_variable
# configure:4739: result: BSD nm
# configure:4742: checking whether ln -s works
# configure:4746: result: yes
# configure:4754: checking the maximum length of command line arguments
# configure:4879: result: 1572864
# configure:4896: checking whether the shell understands some XSI constructs
# configure:4906: result: yes
# configure:4910: checking whether the shell understands "+="
# configure:4916: result: yes
# configure:4951: checking how to convert x86_64-unknown-linux-gnu file names to x86_64-unknown-linux-gnu format
# configure:4991: result: func_convert_file_noop
# configure:4998: checking how to convert x86_64-unknown-linux-gnu file names to toolchain format
# configure:5018: result: func_convert_file_noop
# configure:5025: checking for /usr/bin/ld option to reload object files
# configure:5032: result: -r
# configure:5066: checking for x86_64-unknown-linux-objdump
# configure:5096: result: no
# configure:5106: checking for objdump
# configure:5122: found /usr/bin/objdump
# configure:5133: result: objdump
# configure:5165: checking how to recognize dependent libraries
# configure:5367: result: pass_all
# configure:5412: checking for x86_64-unknown-linux-dlltool
# configure:5442: result: no
# configure:5452: checking for dlltool
# configure:5482: result: no
# configure:5512: checking how to associate runtime and link libraries
# configure:5539: result: printf %s\n
# configure:5556: checking for x86_64-unknown-linux-ar
# configure:5586: result: no
# configure:5600: checking for ar
# configure:5616: found /usr/bin/ar
# configure:5627: result: ar
# configure:5664: checking for archiver @FILE support
# configure:5681: clang -c -msse2 conftest.c >&5
# configure:5681: $? = 0
# configure:5684: ar cru libconftest.a @conftest.lst >&5
# ar: `u' modifier ignored since `D' is the default (see `U')
# configure:5687: $? = 0
# configure:5692: ar cru libconftest.a @conftest.lst >&5
# ar: `u' modifier ignored since `D' is the default (see `U')
# ar: conftest.o: No such file or directory
# configure:5695: $? = 1
# configure:5707: result: @
# configure:5725: checking for x86_64-unknown-linux-strip
# configure:5752: result: strip
# configure:5824: checking for x86_64-unknown-linux-ranlib
# configure:5854: result: no
# configure:5864: checking for ranlib
# configure:5880: found /usr/bin/ranlib
# configure:5891: result: ranlib
# configure:5993: checking command to parse /usr/bin/nm -B output from clang object
# configure:6112: clang -c -msse2 conftest.c >&5
# configure:6115: $? = 0
# configure:6119: /usr/bin/nm -B conftest.o \| sed -n -e 's/^.*[ ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[ ][ ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | sed '/ __gnu_lto/d' \> conftest.nm
# configure:6122: $? = 0
# configure:6188: clang -o conftest -msse2 conftest.c conftstm.o >&5
# configure:6191: $? = 0
# configure:6229: result: ok
# configure:6266: checking for sysroot
# configure:6296: result: no
# configure:6373: clang -c -msse2 conftest.c >&5
# configure:6376: $? = 0
# configure:6499: checking for x86_64-unknown-linux-mt
# configure:6529: result: no
# configure:6539: checking for mt
# configure:6569: result: no
# configure:6589: checking if : is a manifest tool
# configure:6595: : '-?'
# configure:6603: result: no
# configure:7235: checking how to run the C preprocessor
# configure:7266: clang -E conftest.c
# configure:7266: $? = 0
# configure:7280: clang -E conftest.c
# conftest.c:11:10: fatal error: 'ac_nonexistent.h' file not found
# #include
# ^
# 1 error generated.
# configure:7280: $? = 1
# configure: failed program was:
# | /* confdefs.h */
# | #define PACKAGE_NAME "gf2x"
# | #define PACKAGE_TARNAME "gf2x"
# | #define PACKAGE_VERSION "1.1"
# | #define PACKAGE_STRING "gf2x 1.1"
# | #define PACKAGE_BUGREPORT ""
# | #define PACKAGE_URL ""
# | #define PACKAGE "gf2x"
# | #define VERSION "1.1"
# | /* end confdefs.h. */
# | #include
# configure:7305: result: clang -E
# configure:7325: clang -E conftest.c
# configure:7325: $? = 0
# configure:7339: clang -E conftest.c
# conftest.c:11:10: fatal error: 'ac_nonexistent.h' file not found
# #include
# ^
# 1 error generated.
# configure:7339: $? = 1
# configure: failed program was:
# | /* confdefs.h */
# | #define PACKAGE_NAME "gf2x"
# | #define PACKAGE_TARNAME "gf2x"
# | #define PACKAGE_VERSION "1.1"
# | #define PACKAGE_STRING "gf2x 1.1"
# | #define PACKAGE_BUGREPORT ""
# | #define PACKAGE_URL ""
# | #define PACKAGE "gf2x"
# | #define VERSION "1.1"
# | /* end confdefs.h. */
# | #include
# configure:7368: checking for ANSI C header files
# configure:7388: clang -c -msse2 conftest.c >&5
# configure:7388: $? = 0
# configure:7461: clang -o conftest -msse2 conftest.c >&5
# configure:7461: $? = 0
# configure:7461: ./conftest
# configure:7461: $? = 0
# configure:7472: result: yes
# configure:7485: checking for sys/types.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for sys/stat.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for stdlib.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for string.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for memory.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for strings.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for inttypes.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for stdint.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7485: checking for unistd.h
# configure:7485: clang -c -msse2 conftest.c >&5
# configure:7485: $? = 0
# configure:7485: result: yes
# configure:7499: checking for dlfcn.h
# configure:7499: clang -c -msse2 conftest.c >&5
# configure:7499: $? = 0
# configure:7499: result: yes
# configure:7686: checking for objdir
# configure:7701: result: .libs
# configure:7972: checking if clang supports -fno-rtti -fno-exceptions
# configure:7990: clang -c -msse2 -fno-rtti -fno-exceptions conftest.c >&5
# configure:7994: $? = 0
# configure:8007: result: yes
# configure:8317: checking for clang option to produce PIC
# configure:8324: result: -fPIC -DPIC
# configure:8332: checking if clang PIC flag -fPIC -DPIC works
# configure:8350: clang -c -msse2 -fPIC -DPIC -DPIC conftest.c >&5
# configure:8354: $? = 0
# configure:8367: result: yes
# configure:8396: checking if clang static flag -static works
# configure:8424: result: yes
# configure:8439: checking if clang supports -c -o file.o
# configure:8460: clang -c -msse2 -o out/conftest2.o conftest.c >&5
# configure:8464: $? = 0
# configure:8486: result: yes
# configure:8494: checking if clang supports -c -o file.o
# configure:8541: result: yes
# configure:8574: checking whether the clang linker (/usr/bin/ld -m elf_x86_64) supports shared libraries
# configure:9736: result: yes
# configure:9773: checking whether -lc should be explicitly linked in
# configure:9781: clang -c -msse2 conftest.c >&5
# configure:9784: $? = 0
# configure:9799: clang -shared -fPIC -DPIC conftest.o -v -Wl,-soname -Wl,conftest -o conftest 2\>\&1 \| /usr/bin/grep -lc \>/dev/null 2\>\&1
# configure:9802: $? = 0
# configure:9816: result: no
# configure:9981: checking dynamic linker characteristics
# configure:10496: clang -o conftest -msse2 -Wl,-rpath -Wl,/foo conftest.c >&5
# configure:10496: $? = 0
# configure:10730: result: GNU/Linux ld.so
# configure:10837: checking how to hardcode library paths into programs
# configure:10862: result: immediate
# configure:11402: checking whether stripping libraries is possible
# configure:11407: result: yes
# configure:11442: checking if libtool supports shared libraries
# configure:11444: result: yes
# configure:11447: checking whether to build shared libraries
# configure:11468: result: yes
# configure:11471: checking whether to build static libraries
# configure:11475: result: yes
# configure:11545: checking for x86_64-unknown-linux-gcc
# configure:11572: result: clang
# configure:11841: checking for C compiler version
# configure:11850: clang --version >&5
# clang version 3.8.0 (tags/RELEASE_380/final)
# Target: x86_64-unknown-linux-gnu
# Thread model: posix
# InstalledDir: /usr/bin
# configure:11861: $? = 0
# configure:11850: clang -v >&5
# clang version 3.8.0 (tags/RELEASE_380/final)
# Target: x86_64-unknown-linux-gnu
# Thread model: posix
# InstalledDir: /usr/bin
# Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Selected GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Candidate multilib: .;@m64
# ... rest of stderr output deleted ...
# configure:11861: $? = 0
# configure:11850: clang -V >&5
# clang-3.8: error: argument to '-V' is missing (expected 1 value)
# clang-3.8: error: no input files
# configure:11861: $? = 1
# configure:11850: clang -qversion >&5
# clang-3.8: error: unknown argument: '-qversion'
# clang-3.8: error: no input files
# configure:11861: $? = 1
# configure:11865: checking whether we are using the GNU C compiler
# configure:11893: result: yes
# configure:11902: checking whether clang accepts -g
# configure:11963: result: yes
# configure:11980: checking for clang option to accept ISO C89
# configure:12057: result: none needed
# configure:12079: checking dependency style of clang
# configure:12189: result: gcc3
# configure:12316: checking for C++ compiler version
# configure:12325: clang++ --version >&5
# clang version 3.8.0 (tags/RELEASE_380/final)
# Target: x86_64-unknown-linux-gnu
# Thread model: posix
# InstalledDir: /usr/bin
# configure:12336: $? = 0
# configure:12325: clang++ -v >&5
# clang version 3.8.0 (tags/RELEASE_380/final)
# Target: x86_64-unknown-linux-gnu
# Thread model: posix
# InstalledDir: /usr/bin
# Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/6.1.1
# Found candidate GCC installation: /usr/lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Selected GCC installation: /usr/bin/../lib64/gcc/x86_64-pc-linux-gnu/6.1.1
# Candidate multilib: .;@m64
# ... rest of stderr output deleted ...
# configure:12336: $? = 0
# configure:12325: clang++ -V >&5
# clang-3.8: error: argument to '-V' is missing (expected 1 value)
# clang-3.8: error: no input files
# configure:12336: $? = 1
# configure:12325: clang++ -qversion >&5
# clang-3.8: error: unknown argument: '-qversion'
# clang-3.8: error: no input files
# configure:12336: $? = 1
# configure:12340: checking whether we are using the GNU C++ compiler
# configure:12359: clang++ -c conftest.cpp >&5
# configure:12359: $? = 0
# configure:12368: result: yes
# configure:12377: checking whether clang++ accepts -g
# configure:12397: clang++ -c -g conftest.cpp >&5
# configure:12397: $? = 0
# configure:12438: result: yes
# configure:12463: checking dependency style of clang++
# configure:12573: result: gcc3
# configure:12606: checking how to run the C++ preprocessor
# configure:12633: clang++ -E conftest.cpp
# configure:12633: $? = 0
# configure:12647: clang++ -E conftest.cpp
# conftest.cpp:23:10: fatal error: 'ac_nonexistent.h' file not found
# #include
# ^
# 1 error generated.
# configure:12647: $? = 1
# configure: failed program was:
# | /* confdefs.h */
# | #define PACKAGE_NAME "gf2x"
# | #define PACKAGE_TARNAME "gf2x"
# | #define PACKAGE_VERSION "1.1"
# | #define PACKAGE_STRING "gf2x 1.1"
# | #define PACKAGE_BUGREPORT ""
# | #define PACKAGE_URL ""
# | #define PACKAGE "gf2x"
# | #define VERSION "1.1"
# | #define STDC_HEADERS 1
# | #define HAVE_SYS_TYPES_H 1
# | #define HAVE_SYS_STAT_H 1
# | #define HAVE_STDLIB_H 1
# | #define HAVE_STRING_H 1
# | #define HAVE_MEMORY_H 1
# | #define HAVE_STRINGS_H 1
# | #define HAVE_INTTYPES_H 1
# | #define HAVE_STDINT_H 1
# | #define HAVE_UNISTD_H 1
# | #define HAVE_DLFCN_H 1
# | #define LT_OBJDIR ".libs/"
# | /* end confdefs.h. */
# | #include
# configure:12672: result: clang++ -E
# configure:12692: clang++ -E conftest.cpp
# configure:12692: $? = 0
# configure:12706: clang++ -E conftest.cpp
# conftest.cpp:23:10: fatal error: 'ac_nonexistent.h' file not found
# #include
# ^
# 1 error generated.
# configure:12706: $? = 1
# configure: failed program was:
# | /* confdefs.h */
# | #define PACKAGE_NAME "gf2x"
# | #define PACKAGE_TARNAME "gf2x"
# | #define PACKAGE_VERSION "1.1"
# | #define PACKAGE_STRING "gf2x 1.1"
# | #define PACKAGE_BUGREPORT ""
# | #define PACKAGE_URL ""
# | #define PACKAGE "gf2x"
# | #define VERSION "1.1"
# | #define STDC_HEADERS 1
# | #define HAVE_SYS_TYPES_H 1
# | #define HAVE_SYS_STAT_H 1
# | #define HAVE_STDLIB_H 1
# | #define HAVE_STRING_H 1
# | #define HAVE_MEMORY_H 1
# | #define HAVE_STRINGS_H 1
# | #define HAVE_INTTYPES_H 1
# | #define HAVE_STDINT_H 1
# | #define HAVE_UNISTD_H 1
# | #define HAVE_DLFCN_H 1
# | #define LT_OBJDIR ".libs/"
# | /* end confdefs.h. */
# | #include
# configure:12876: checking for ld used by clang++
# configure:12943: result: /usr/bin/ld -m elf_x86_64
# configure:12950: checking if the linker (/usr/bin/ld -m elf_x86_64) is GNU ld
# configure:12965: result: yes
# configure:13020: checking whether the clang++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries
# configure:14024: result: yes
# configure:14059: clang++ -c conftest.cpp >&5
# configure:14062: $? = 0
# configure:14582: checking for clang++ option to produce PIC
# configure:14589: result: -fPIC -DPIC
# configure:14597: checking if clang++ PIC flag -fPIC -DPIC works
# configure:14615: clang++ -c -fPIC -DPIC -DPIC conftest.cpp >&5
# configure:14619: $? = 0
# configure:14632: result: yes
# configure:14655: checking if clang++ static flag -static works
# configure:14683: result: yes
# configure:14695: checking if clang++ supports -c -o file.o
# configure:14716: clang++ -c -o out/conftest2.o conftest.cpp >&5
# configure:14720: $? = 0
# configure:14742: result: yes
# configure:14747: checking if clang++ supports -c -o file.o
# configure:14794: result: yes
# configure:14824: checking whether the clang++ linker (/usr/bin/ld -m elf_x86_64) supports shared libraries
# configure:14861: result: yes
# configure:15004: checking dynamic linker characteristics
# configure:15687: result: GNU/Linux ld.so
# configure:15740: checking how to hardcode library paths into programs
# configure:15765: result: immediate
# configure:15806: checking warning verbosity option
# configure:15844: result: -Wall -W for C++ -Wall -W for C
# configure:15849: checking for clang option to accept ISO C99
# configure:15998: clang -c -msse2 -Wall -W conftest.c >&5
# configure:15998: $? = 0
# configure:16011: result: none needed
# configure:16094: checking build system compiler clang
# configure:16107: clang conftest.c
# conftest.c:4:3: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# exit(0);
# ^
# conftest.c:4:3: note: include the header or explicitly provide a declaration for 'exit'
# 1 warning generated.
# configure:16110: $? = 0
# configure:16117: result: yes
# configure:16136: checking for build system executable suffix
# configure:16150: clang conftest.c -o conftest.exe
# conftest.c:4:3: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# exit (0);
# ^
# conftest.c:4:3: note: include the header or explicitly provide a declaration for 'exit'
# 1 warning generated.
# configure:16153: $? = 0
# ./configure: line 16155: ./conftest: No such file or directory
# configure:16150: clang conftest.c -o conftest,ff8
# conftest.c:4:3: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# exit (0);
# ^
# conftest.c:4:3: note: include the header or explicitly provide a declaration for 'exit'
# 1 warning generated.
# configure:16153: $? = 0
# ./configure: line 16155: ./conftest: No such file or directory
# configure:16150: clang conftest.c -o conftest
# conftest.c:4:3: warning: implicitly declaring library function 'exit' with type 'void (int) __attribute__((noreturn))' [-Wimplicit-function-declaration]
# exit (0);
# ^
# conftest.c:4:3: note: include the header or explicitly provide a declaration for 'exit'
# 1 warning generated.
# configure:16153: $? = 0
# configure:16167: result:
# configure:16175: checking whether clang and cc understand -c and -o together
# configure:16206: clang -c conftest.c -o conftest2.o >&5
# configure:16210: $? = 0
# configure:16216: clang -c conftest.c -o conftest2.o >&5
# configure:16220: $? = 0
# configure:16231: cc -c conftest.c >&5
# configure:16235: $? = 0
# configure:16243: cc -c conftest.c -o conftest2.o >&5
# configure:16247: $? = 0
# configure:16253: cc -c conftest.c -o conftest2.o >&5
# configure:16257: $? = 0
# configure:16275: result: yes
# configure:16306: checking size of unsigned long
# configure:16311: clang -o conftest -msse2 -Wall -W conftest.c >&5
# configure:16311: $? = 0
# configure:16311: ./conftest
# configure:16311: $? = 0
# configure:16325: result: 8
# configure:16342: checking whether clang can compile and run sse-2 code
# configure:16366: clang -o conftest -msse2 -Wall -W conftest.c >&5
# configure:16366: $? = 0
# configure:16366: ./conftest
# configure:16366: $? = 0
# configure:16409: result: yes
# configure:16478: checking whether clang can compile pclmulqdq and if it is supported by the hardware
# configure:16563: result: no
# configure:16763: checking the number of bits in an unsigned long
# configure:16801: clang -o conftest -msse2 -Wall -W conftest.c >&5
# configure:16801: $? = 0
# configure:16801: ./conftest
# configure:16801: $? = 0
# configure:16824: result: 64
# configure:16843: using ABI="default"
# configure:16845: CC="clang"
# configure:16847: CFLAGS=" -msse2 -Wall -W"
# configure:16849: CPPFLAGS=""
# configure:16851: hwdir="x86_64"
# configure:16947: checking whether already_tuned/x86_64/ is right assuming 64-bits unsigned longs
# configure:16952: result: yes
# configure:17157: creating ./config.status
#
# ## ---------------------- ##
# ## Running config.status. ##
# ## ---------------------- ##
#
# This file was extended by gf2x config.status 1.1, which was
# generated by GNU Autoconf 2.68. Invocation command line was
#
# CONFIG_FILES =
# CONFIG_HEADERS =
# CONFIG_LINKS =
# CONFIG_COMMANDS =
# $ ./config.status
#
# on 3e1ddcde6156
#
# config.status:1181: creating version.sh
# config.status:1181: creating Makefile
# config.status:1181: creating tests/Makefile
# config.status:1181: creating apps/Makefile
# config.status:1181: creating src/Makefile
# config.status:1181: creating gf2x/gf2x-config.h
# config.status:1422: linking already_tuned/x86_64/gf2x-thresholds.h to gf2x/gf2x-thresholds.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul1.h to gf2x/gf2x_mul1.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul2.h to gf2x/gf2x_mul2.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul3.h to gf2x/gf2x_mul3.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul4.h to gf2x/gf2x_mul4.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul5.h to gf2x/gf2x_mul5.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul6.h to gf2x/gf2x_mul6.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul7.h to gf2x/gf2x_mul7.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul8.h to gf2x/gf2x_mul8.h
# config.status:1422: linking already_tuned/x86_64/gf2x_mul9.h to gf2x/gf2x_mul9.h
# config.status:1441: executing depfiles commands
# config.status:1441: executing libtool commands
#
# ## ---------------- ##
# ## Cache variables. ##
# ## ---------------- ##
#
# ac_cv_build=x86_64-unknown-linux-gnu
# ac_cv_c_compiler_gnu=yes
# ac_cv_cxx_compiler_gnu=yes
# ac_cv_env_CCC_set=
# ac_cv_env_CCC_value=
# ac_cv_env_CC_FOR_BUILD_set=
# ac_cv_env_CC_FOR_BUILD_value=
# ac_cv_env_CC_set=set
# ac_cv_env_CC_value=clang
# ac_cv_env_CFLAGS_set=set
# ac_cv_env_CFLAGS_value=' -msse2'
# ac_cv_env_CPPFLAGS_set=set
# ac_cv_env_CPPFLAGS_value=
# ac_cv_env_CPP_set=
# ac_cv_env_CPP_value=
# ac_cv_env_CXXCPP_set=
# ac_cv_env_CXXCPP_value=
# ac_cv_env_CXXFLAGS_set=set
# ac_cv_env_CXXFLAGS_value=
# ac_cv_env_CXX_set=set
# ac_cv_env_CXX_value=clang++
# ac_cv_env_LDFLAGS_set=set
# ac_cv_env_LDFLAGS_value=
# ac_cv_env_LIBS_set=
# ac_cv_env_LIBS_value=
# ac_cv_env_build_alias_set=
# ac_cv_env_build_alias_value=
# ac_cv_env_host_alias_set=set
# ac_cv_env_host_alias_value=x86_64-unknown-linux
# ac_cv_env_target_alias_set=
# ac_cv_env_target_alias_value=
# ac_cv_header_dlfcn_h=yes
# ac_cv_header_inttypes_h=yes
# ac_cv_header_memory_h=yes
# ac_cv_header_stdc=yes
# ac_cv_header_stdint_h=yes
# ac_cv_header_stdlib_h=yes
# ac_cv_header_string_h=yes
# ac_cv_header_strings_h=yes
# ac_cv_header_sys_stat_h=yes
# ac_cv_header_sys_types_h=yes
# ac_cv_header_unistd_h=yes
# ac_cv_host=x86_64-unknown-linux-gnu
# ac_cv_objext=o
# ac_cv_path_EGREP='/usr/bin/grep -E'
# ac_cv_path_FGREP='/usr/bin/grep -F'
# ac_cv_path_GREP=/usr/bin/grep
# ac_cv_path_SED=/usr/bin/sed
# ac_cv_path_install='/usr/bin/install -c'
# ac_cv_path_mkdir=/usr/bin/mkdir
# ac_cv_prog_AWK=gawk
# ac_cv_prog_CC=clang
# ac_cv_prog_CPP='clang -E'
# ac_cv_prog_CXXCPP='clang++ -E'
# ac_cv_prog_STRIP=strip
# ac_cv_prog_ac_ct_AR=ar
# ac_cv_prog_ac_ct_OBJDUMP=objdump
# ac_cv_prog_ac_ct_RANLIB=ranlib
# ac_cv_prog_ac_ct_STRIP=strip
# ac_cv_prog_cc_c89=
# ac_cv_prog_cc_c99=
# ac_cv_prog_cc_clang_c_o=yes
# ac_cv_prog_cc_g=yes
# ac_cv_prog_cxx_g=yes
# ac_cv_prog_make_make_set=yes
# ac_cv_sizeof_unsigned_long=8
# ac_cv_target=x86_64-unknown-linux-gnu
# am_cv_CC_dependencies_compiler_type=gcc3
# am_cv_CXX_dependencies_compiler_type=gcc3
# gf2x_cv_cc_supports_pclmul=no
# gf2x_cv_cc_supports_sse2=yes
# gf2x_cv_prog_exeext_for_build=
# gf2x_cv_ulongbits=64
# lt_cv_ar_at_file=@
# lt_cv_archive_cmds_need_lc=no
# lt_cv_deplibs_check_method=pass_all
# lt_cv_file_magic_cmd='$MAGIC_CMD'
# lt_cv_file_magic_test_file=
# lt_cv_ld_reload_flag=-r
# lt_cv_nm_interface='BSD nm'
# lt_cv_objdir=.libs
# lt_cv_path_LD=/usr/bin/ld
# lt_cv_path_LDCXX='/usr/bin/ld -m elf_x86_64'
# lt_cv_path_NM='/usr/bin/nm -B'
# lt_cv_path_mainfest_tool=no
# lt_cv_prog_compiler_c_o=yes
# lt_cv_prog_compiler_c_o_CXX=yes
# lt_cv_prog_compiler_pic='-fPIC -DPIC'
# lt_cv_prog_compiler_pic_CXX='-fPIC -DPIC'
# lt_cv_prog_compiler_pic_works=yes
# lt_cv_prog_compiler_pic_works_CXX=yes
# lt_cv_prog_compiler_rtti_exceptions=yes
# lt_cv_prog_compiler_static_works=yes
# lt_cv_prog_compiler_static_works_CXX=yes
# lt_cv_prog_gnu_ld=yes
# lt_cv_prog_gnu_ldcxx=yes
# lt_cv_sharedlib_from_linklib_cmd='printf %s\n'
# lt_cv_shlibpath_overrides_runpath=no
# lt_cv_sys_global_symbol_pipe='sed -n -e '\''s/^.*[ ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[ ][ ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p'\'' | sed '\''/ __gnu_lto/d'\'''
# lt_cv_sys_global_symbol_to_c_name_address='sed -n -e '\''s/^: \([^ ]*\)[ ]*$/ {\"\1\", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW]* \([^ ]*\) \([^ ]*\)$/ {"\2", (void *) \&\2},/p'\'''
# lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='sed -n -e '\''s/^: \([^ ]*\)[ ]*$/ {\"\1\", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW]* \([^ ]*\) \(lib[^ ]*\)$/ {"\2", (void *) \&\2},/p'\'' -e '\''s/^[ABCDGIRSTW]* \([^ ]*\) \([^ ]*\)$/ {"lib\2", (void *) \&\2},/p'\'''
# lt_cv_sys_global_symbol_to_cdecl='sed -n -e '\''s/^T .* \(.*\)$/extern int \1();/p'\'' -e '\''s/^[ABCDGIRSTW]* .* \(.*\)$/extern char \1;/p'\'''
# lt_cv_sys_max_cmd_len=1572864
# lt_cv_to_host_file_cmd=func_convert_file_noop
# lt_cv_to_tool_file_cmd=func_convert_file_noop
#
# ## ----------------- ##
# ## Output variables. ##
# ## ----------------- ##
#
# ACLOCAL='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/missing --run aclocal-1.11'
# AMDEPBACKSLASH='\'
# AMDEP_FALSE='#'
# AMDEP_TRUE=''
# AMTAR='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/missing --run tar'
# AR='ar'
# AUTOCONF='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/missing --run autoconf'
# AUTOHEADER='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/missing --run autoheader'
# AUTOMAKE='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/missing --run automake-1.11'
# AWK='gawk'
# CC='clang'
# CCDEPMODE='depmode=gcc3'
# CC_FOR_BUILD='clang'
# CFLAGS=' -msse2 -Wall -W'
# CPP='clang -E'
# CPPFLAGS=''
# CXX='clang++'
# CXXCPP='clang++ -E'
# CXXDEPMODE='depmode=gcc3'
# CXXFLAGS=' -Wall -W'
# CYGPATH_W='echo'
# DEFS='-DHAVE_CONFIG_H'
# DEPDIR='.deps'
# DLLTOOL='false'
# DSYMUTIL=''
# DUMPBIN=''
# ECHO_C=''
# ECHO_N='-n'
# ECHO_T=''
# EGREP='/usr/bin/grep -E'
# ENABLE_NTL_CHECKS_FALSE=''
# ENABLE_NTL_CHECKS_TRUE='#'
# EXEEXT=''
# EXEEXT_FOR_BUILD=''
# FGREP='/usr/bin/grep -F'
# GF2X_32BIT_SOURCES_FALSE=''
# GF2X_32BIT_SOURCES_TRUE='#'
# GF2X_64BIT_SOURCES_FALSE='#'
# GF2X_64BIT_SOURCES_TRUE=''
# GF2X_PCLMUL_AVAILABLE_FALSE=''
# GF2X_PCLMUL_AVAILABLE_TRUE='#'
# GF2X_SSE2_AVAILABLE_FALSE='#'
# GF2X_SSE2_AVAILABLE_TRUE=''
# GF2X_WORDSIZE='64'
# GREP='/usr/bin/grep'
# INSTALL_DATA='${INSTALL} -m 644'
# INSTALL_PROGRAM='${INSTALL}'
# INSTALL_SCRIPT='${INSTALL}'
# INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
# LD='/usr/bin/ld -m elf_x86_64'
# LDFLAGS=''
# LIBOBJS=''
# LIBS=''
# LIBTOOL='$(SHELL) $(top_builddir)/libtool'
# LIPO=''
# LN_S='ln -s'
# LTLIBOBJS=''
# MAKEINFO='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/missing --run makeinfo'
# MANIFEST_TOOL=':'
# MKDIR_P='/usr/bin/mkdir -p'
# NM='/usr/bin/nm -B'
# NMEDIT=''
# OBJDUMP='objdump'
# OBJEXT='o'
# OTOOL64=''
# OTOOL=''
# PACKAGE='gf2x'
# PACKAGE_BUGREPORT=''
# PACKAGE_NAME='gf2x'
# PACKAGE_STRING='gf2x 1.1'
# PACKAGE_TARNAME='gf2x'
# PACKAGE_URL=''
# PACKAGE_VERSION='1.1'
# PATH_SEPARATOR=':'
# RANLIB='ranlib'
# SED='/usr/bin/sed'
# SET_MAKE=''
# SHELL='/bin/sh'
# STRIP='strip'
# VERSION='1.1'
# ac_ct_AR='ar'
# ac_ct_CC=''
# ac_ct_CXX=''
# ac_ct_DUMPBIN=''
# am__EXEEXT_FALSE=''
# am__EXEEXT_TRUE='#'
# am__fastdepCC_FALSE='#'
# am__fastdepCC_TRUE=''
# am__fastdepCXX_FALSE='#'
# am__fastdepCXX_TRUE=''
# am__include='include'
# am__isrc=''
# am__leading_dot='.'
# am__quote=''
# am__tar='${AMTAR} chof - "$$tardir"'
# am__untar='${AMTAR} xf -'
# bindir='${exec_prefix}/bin'
# build='x86_64-unknown-linux-gnu'
# build_alias=''
# build_cpu='x86_64'
# build_os='linux-gnu'
# build_vendor='unknown'
# datadir='${datarootdir}'
# datarootdir='${prefix}/share'
# docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
# dvidir='${docdir}'
# exec_prefix='${prefix}'
# gf2x_lib_version='1:0:0'
# host='x86_64-unknown-linux-gnu'
# host_alias='x86_64-unknown-linux'
# host_cpu='x86_64'
# host_os='linux-gnu'
# host_vendor='unknown'
# htmldir='${docdir}'
# includedir='${prefix}/include'
# infodir='${datarootdir}/info'
# install_sh='${SHELL} /tmp/gf2x/src/gf2x-1.1/config/install-sh'
# libdir='${exec_prefix}/lib'
# libexecdir='${exec_prefix}/libexec'
# localedir='${datarootdir}/locale'
# localstatedir='${prefix}/var'
# mandir='${datarootdir}/man'
# mkdir_p='/usr/bin/mkdir -p'
# oldincludedir='/usr/include'
# pdfdir='${docdir}'
# prefix='/usr'
# program_transform_name='s,x,x,'
# psdir='${docdir}'
# sbindir='${exec_prefix}/sbin'
# sharedstatedir='${prefix}/com'
# sysconfdir='${prefix}/etc'
# target='x86_64-unknown-linux-gnu'
# target_alias=''
# target_cpu='x86_64'
# target_os='linux-gnu'
# target_vendor='unknown'
#
# ## ----------- ##
# ## confdefs.h. ##
# ## ----------- ##
#
# /* confdefs.h */
# #define PACKAGE_NAME "gf2x"
# #define PACKAGE_TARNAME "gf2x"
# #define PACKAGE_VERSION "1.1"
# #define PACKAGE_STRING "gf2x 1.1"
# #define PACKAGE_BUGREPORT ""
# #define PACKAGE_URL ""
# #define PACKAGE "gf2x"
# #define VERSION "1.1"
# #define STDC_HEADERS 1
# #define HAVE_SYS_TYPES_H 1
# #define HAVE_SYS_STAT_H 1
# #define HAVE_STDLIB_H 1
# #define HAVE_STRING_H 1
# #define HAVE_MEMORY_H 1
# #define HAVE_STRINGS_H 1
# #define HAVE_INTTYPES_H 1
# #define HAVE_STDINT_H 1
# #define HAVE_UNISTD_H 1
# #define HAVE_DLFCN_H 1
# #define LT_OBJDIR ".libs/"
# #define SIZEOF_UNSIGNED_LONG 8
# #define HAVE_SSE2_SUPPORT 1
#
# configure: exit 0