This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.

It was created by configure, which was
generated by GNU Autoconf 2.71.  Invocation command line was

  $ ./configure --prefix=/usr --build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-dependency-tracking --disable-silent-rules --docdir=/usr/share/doc/gerris-20131206-r1 --htmldir=/usr/share/doc/gerris-20131206-r1/html --with-sysroot=/ --libdir=/usr/lib64 --enable-shared --disable-static --disable-mpi 'LAPACK_LIBS=-llapack '

## --------- ##
## Platform. ##
## --------- ##

hostname = localhost
uname -m = x86_64
uname -r = 5.15.77-gentoo-dist
uname -s = Linux
uname -v = #1 SMP Thu Nov 3 18:21:44 -00 2022

/usr/bin/uname -p = AMD EPYC 7513 32-Core Processor
/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/lib/portage/python3.10/ebuild-helpers/xattr/
PATH: /usr/lib/portage/python3.10/ebuild-helpers/
PATH: /usr/local/sbin/
PATH: /usr/local/bin/
PATH: /usr/sbin/
PATH: /usr/bin/
PATH: /sbin/
PATH: /bin/
PATH: /opt/bin/
PATH: /usr/lib/llvm/15/bin/


## ----------- ##
## Core tests. ##
## ----------- ##

configure:2678: looking for aux files: ltmain.sh config.guess config.sub compile missing install-sh
configure:2691:  trying ./
configure:2720:   ./ltmain.sh found
configure:2720:   ./config.guess found
configure:2720:   ./config.sub found
configure:2720:   ./compile found
configure:2720:   ./missing found
configure:2702:   ./install-sh found
configure:2894: checking for a BSD-compatible install
configure:2967: result: /usr/lib/portage/python3.10/ebuild-helpers/xattr/install -c
configure:2978: checking whether build environment is sane
configure:3033: result: yes
configure:3192: checking for a race-free mkdir -p
configure:3236: result: /bin/mkdir -p
configure:3243: checking for gawk
configure:3264: found /usr/bin/gawk
configure:3275: result: gawk
configure:3286: checking whether make sets $(MAKE)
configure:3309: result: yes
configure:3339: checking whether make supports nested variables
configure:3357: result: yes
configure:3517: checking whether to enable maintainer-specific portions of Makefiles
configure:3527: result: no
configure:3660: checking for x86_64-pc-linux-gnu-gcc
configure:3692: result: clang
configure:4090: checking for C compiler version
configure:4099: clang --version >&5
clang version 15.0.6
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm/15/bin
Configuration file: /etc/clang/clang.cfg
configure:4110: $? = 0
configure:4099: clang -v >&5
clang version 15.0.6
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm/15/bin
Configuration file: /etc/clang/clang.cfg
System configuration file directory: /etc/clang
Selected GCC installation: /usr/lib/gcc/x86_64-pc-linux-gnu/12
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64
... rest of stderr output deleted ...
configure:4110: $? = 0
configure:4099: clang -V >&5
clang-15: error: argument to '-V' is missing (expected 1 value)
clang-15: error: no input files
configure:4110: $? = 1
configure:4099: clang -qversion >&5
clang-15: error: unknown argument '-qversion'; did you mean '--version'?
clang-15: error: no input files
configure:4110: $? = 1
configure:4099: clang -version >&5
clang-15: error: unknown argument '-version'; did you mean '--version'?
clang-15: error: no input files
configure:4110: $? = 1
configure:4130: checking whether the C compiler works
configure:4152: clang -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c  >&5
configure:4156: $? = 0
configure:4206: result: yes
configure:4209: checking for C compiler default output file name
configure:4211: result: a.out
configure:4217: checking for suffix of executables
configure:4224: clang -o conftest -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c  >&5
configure:4228: $? = 0
configure:4251: result: 
configure:4273: checking whether we are cross compiling
configure:4281: clang -o conftest -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c  >&5
configure:4285: $? = 0
configure:4292: ./conftest
configure:4296: $? = 0
configure:4311: result: no
configure:4316: checking for suffix of object files
configure:4339: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types  -I/usr/include/hypre conftest.c >&5
configure:4343: $? = 0
configure:4365: result: o
configure:4369: checking whether the compiler supports GNU C
configure:4389: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types  -I/usr/include/hypre conftest.c >&5
configure:4389: $? = 0
configure:4399: result: yes
configure:4410: checking whether clang accepts -g
configure:4431: clang -c -g  -I/usr/include/hypre conftest.c >&5
configure:4431: $? = 0
configure:4475: result: yes
configure:4495: checking for clang option to enable C11 features
configure:4510: clang  -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types  -I/usr/include/hypre conftest.c >&5
configure:4510: $? = 0
configure:4528: result: none needed
configure:4644: checking whether clang understands -c and -o together
configure:4667: clang -c conftest.c -o conftest2.o
configure:4670: $? = 0
configure:4667: clang -c conftest.c -o conftest2.o
configure:4670: $? = 0
configure:4682: result: yes
configure:4702: checking whether make supports the include directive
configure:4717: make -f confmf.GNU && cat confinc.out
this is the am__doit target
configure:4720: $? = 0
configure:4739: result: yes (GNU style)
configure:4765: checking dependency style of clang
configure:4877: result: none
configure:4905: checking build system type
configure:4920: result: x86_64-pc-linux-gnu
configure:4940: checking host system type
configure:4954: result: x86_64-pc-linux-gnu
configure:5354: checking how to print strings
configure:5381: result: printf
configure:5402: checking for a sed that does not truncate output
configure:5472: result: /bin/sed
configure:5490: checking for grep that handles long lines and -e
configure:5554: result: /bin/grep
configure:5559: checking for egrep
configure:5627: result: /bin/grep -E
configure:5632: checking for fgrep
configure:5700: result: /bin/grep -F
configure:5736: checking for ld used by clang
configure:5804: result: /usr/bin/x86_64-pc-linux-gnu-ld
configure:5811: checking if the linker (/usr/bin/x86_64-pc-linux-gnu-ld) is GNU ld
configure:5827: result: yes
configure:5839: checking for BSD- or MS-compatible name lister (nm)
configure:5894: result: x86_64-pc-linux-gnu-nm
configure:6034: checking the name lister (x86_64-pc-linux-gnu-nm) interface
configure:6042: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:6045: x86_64-pc-linux-gnu-nm "conftest.o"
configure:6048: output
0000000000000000 B some_variable
configure:6055: result: BSD nm
configure:6058: checking whether ln -s works
configure:6062: result: yes
configure:6070: checking the maximum length of command line arguments
configure:6207: result: 1572864
configure:6255: checking how to convert x86_64-pc-linux-gnu file names to x86_64-pc-linux-gnu format
configure:6296: result: func_convert_file_noop
configure:6303: checking how to convert x86_64-pc-linux-gnu file names to toolchain format
configure:6324: result: func_convert_file_noop
configure:6331: checking for /usr/bin/x86_64-pc-linux-gnu-ld option to reload object files
configure:6339: result: -r
configure:6373: checking for x86_64-pc-linux-gnu-file
configure:6408: result: no
configure:6418: checking for file
configure:6439: found /usr/bin/file
configure:6450: result: file
configure:6481: checking for x86_64-pc-linux-gnu-objdump
configure:6513: result: objdump
configure:6587: checking how to recognize dependent libraries
configure:6788: result: pass_all
configure:6833: checking for x86_64-pc-linux-gnu-dlltool
configure:6865: result: dlltool
configure:6940: checking how to associate runtime and link libraries
configure:6968: result: printf %s\n
configure:6985: checking for x86_64-pc-linux-gnu-ar
configure:7006: found /usr/bin/x86_64-pc-linux-gnu-ar
configure:7017: result: x86_64-pc-linux-gnu-ar
configure:7119: checking for archiver @FILE support
configure:7137: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:7137: $? = 0
configure:7141: x86_64-pc-linux-gnu-ar cr libconftest.a @conftest.lst >&5
configure:7144: $? = 0
configure:7149: x86_64-pc-linux-gnu-ar cr libconftest.a @conftest.lst >&5
x86_64-pc-linux-gnu-ar: conftest.o: No such file or directory
configure:7152: $? = 1
configure:7164: result: @
configure:7182: checking for x86_64-pc-linux-gnu-strip
configure:7203: found /usr/bin/x86_64-pc-linux-gnu-strip
configure:7214: result: x86_64-pc-linux-gnu-strip
configure:7291: checking for x86_64-pc-linux-gnu-ranlib
configure:7312: found /usr/bin/x86_64-pc-linux-gnu-ranlib
configure:7323: result: x86_64-pc-linux-gnu-ranlib
configure:7470: checking command to parse x86_64-pc-linux-gnu-nm output from clang object
configure:7624: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:7627: $? = 0
configure:7631: x86_64-pc-linux-gnu-nm conftest.o \| /bin/sed -n -e 's/^.*[ ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[ ][ ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p' | /bin/sed '/ __gnu_lto/d' \> conftest.nm
configure:7634: $? = 0
configure:7700: clang -o conftest -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c conftstm.o >&5
configure:7703: $? = 0
configure:7741: result: ok
configure:7788: checking for sysroot
configure:7819: result: /
configure:7826: checking for a working dd
configure:7870: result: /bin/dd
configure:7874: checking how to truncate binary pipes
configure:7890: result: /bin/dd bs=4096 count=1
configure:8027: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:8030: $? = 0
configure:8182: checking for x86_64-pc-linux-gnu-mt
configure:8217: result: no
configure:8227: checking for mt
configure:8262: result: no
configure:8282: checking if : is a manifest tool
configure:8289: : '-?'
configure:8297: result: no
configure:9022: checking for stdio.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for stdlib.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for string.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for inttypes.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for stdint.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for strings.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for sys/stat.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for sys/types.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9022: checking for unistd.h
configure:9022: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9022: $? = 0
configure:9022: result: yes
configure:9047: checking for dlfcn.h
configure:9047: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:9047: $? = 0
configure:9047: result: yes
configure:9304: checking for objdir
configure:9320: result: .libs
configure:9584: checking if clang supports -fno-rtti -fno-exceptions
configure:9603: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -fno-rtti -fno-exceptions conftest.c >&5
configure:9607: $? = 0
configure:9620: result: yes
configure:9978: checking for clang option to produce PIC
configure:9986: result: -fPIC -DPIC
configure:9994: checking if clang PIC flag -fPIC -DPIC works
configure:10013: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -fPIC -DPIC -DPIC conftest.c >&5
configure:10017: $? = 0
configure:10030: result: yes
configure:10059: checking if clang static flag -static works
configure:10088: result: yes
configure:10103: checking if clang supports -c -o file.o
configure:10125: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -o out/conftest2.o conftest.c >&5
configure:10129: $? = 0
configure:10151: result: yes
configure:10159: checking if clang supports -c -o file.o
configure:10207: result: yes
configure:10240: checking whether the clang linker (/usr/bin/x86_64-pc-linux-gnu-ld -m elf_x86_64) supports shared libraries
configure:11508: result: yes
configure:11545: checking whether -lc should be explicitly linked in
configure:11554: clang -c -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre conftest.c >&5
configure:11557: $? = 0
configure:11572: clang -shared  -fPIC -DPIC conftest.o  -v -Wl,-soname -Wl,conftest -o conftest 2\>\&1 \| /bin/grep  -lc  \>/dev/null 2\>\&1
configure:11575: $? = 0
configure:11589: result: no
configure:11749: checking dynamic linker characteristics
configure:12344: clang -o conftest -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-rpath -Wl,/foo conftest.c  >&5
configure:12344: $? = 0
configure:12583: result: GNU/Linux ld.so
configure:12705: checking how to hardcode library paths into programs
configure:12730: result: immediate
configure:13312: checking whether stripping libraries is possible
configure:13321: result: yes
configure:13363: checking if libtool supports shared libraries
configure:13365: result: yes
configure:13368: checking whether to build shared libraries
configure:13393: result: yes
configure:13396: checking whether to build static libraries
configure:13400: result: no
configure:13466: checking for gawk
configure:13498: result: gawk
configure:13509: checking for library containing strerror
configure:13545: clang -o conftest -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c  >&5
conftest.c:38:6: warning: incompatible redeclaration of library function 'strerror' [-Wincompatible-library-redeclaration]
char strerror (void);
     ^
conftest.c:38:6: note: 'strerror' is a builtin with type 'char *(int)'
1 warning generated.
configure:13545: $? = 0
configure:13565: result: none required
configure:13577: checking for egrep
configure:13645: result: /bin/grep -E
configure:13653: checking whether pointers can be stored in doubles
configure:13669: clang -o conftest -O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99  -I/usr/include/hypre -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 conftest.c  >&5
conftest.c:29:1: error: type specifier missing, defaults to 'int'; ISO C99 and later do not support implicit int [-Werror,-Wimplicit-int]
main () {
^
int
1 error generated.
configure:13669: $? = 1
configure: program exited with status 1
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME ""
| #define PACKAGE_TARNAME ""
| #define PACKAGE_VERSION ""
| #define PACKAGE_STRING ""
| #define PACKAGE_BUGREPORT ""
| #define PACKAGE_URL ""
| #define GFS_MAJOR_VERSION 1
| #define GFS_MINOR_VERSION 3
| #define GFS_MICRO_VERSION 2
| #define GFS_INTERFACE_AGE 0
| #define GFS_BINARY_AGE 0
| #define GFS_VERSION "1.3.2"
| #define GFS_COMPILATION_FLAGS "-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types"
| #define HAVE_STDIO_H 1
| #define HAVE_STDLIB_H 1
| #define HAVE_STRING_H 1
| #define HAVE_INTTYPES_H 1
| #define HAVE_STDINT_H 1
| #define HAVE_STRINGS_H 1
| #define HAVE_SYS_STAT_H 1
| #define HAVE_SYS_TYPES_H 1
| #define HAVE_UNISTD_H 1
| #define STDC_HEADERS 1
| #define HAVE_DLFCN_H 1
| #define LT_OBJDIR ".libs/"
| /* end confdefs.h.  */
| 
| main () {
|   if (sizeof (void *) > sizeof (double))
|     return 1;
|   return 0;
| }
| 
configure:13679: result: no
configure:13682: error: 
*** Pointers cannot be stored in doubles on this architecture.

## ---------------- ##
## Cache variables. ##
## ---------------- ##

ac_cv_build=x86_64-pc-linux-gnu
ac_cv_c_compiler_gnu=yes
ac_cv_env_CC_set=set
ac_cv_env_CC_value=clang
ac_cv_env_CFLAGS_set=set
ac_cv_env_CFLAGS_value='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types'
ac_cv_env_CPPFLAGS_set=set
ac_cv_env_CPPFLAGS_value=' -I/usr/include/hypre'
ac_cv_env_F77_set=
ac_cv_env_F77_value=
ac_cv_env_FCFLAGS_set=set
ac_cv_env_FCFLAGS_value='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types'
ac_cv_env_FC_set=
ac_cv_env_FC_value=
ac_cv_env_FFLAGS_set=set
ac_cv_env_FFLAGS_value='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types'
ac_cv_env_FFTW3_CFLAGS_set=
ac_cv_env_FFTW3_CFLAGS_value=
ac_cv_env_FFTW3_LIBS_set=
ac_cv_env_FFTW3_LIBS_value=
ac_cv_env_GTS_CFLAGS_set=
ac_cv_env_GTS_CFLAGS_value=
ac_cv_env_GTS_LIBS_set=
ac_cv_env_GTS_LIBS_value=
ac_cv_env_LDFLAGS_set=set
ac_cv_env_LDFLAGS_value='-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0'
ac_cv_env_LIBS_set=
ac_cv_env_LIBS_value=
ac_cv_env_LT_SYS_LIBRARY_PATH_set=
ac_cv_env_LT_SYS_LIBRARY_PATH_value=
ac_cv_env_PKG_CONFIG_LIBDIR_set=
ac_cv_env_PKG_CONFIG_LIBDIR_value=
ac_cv_env_PKG_CONFIG_PATH_set=
ac_cv_env_PKG_CONFIG_PATH_value=
ac_cv_env_PKG_CONFIG_set=
ac_cv_env_PKG_CONFIG_value=
ac_cv_env_build_alias_set=set
ac_cv_env_build_alias_value=x86_64-pc-linux-gnu
ac_cv_env_host_alias_set=set
ac_cv_env_host_alias_value=x86_64-pc-linux-gnu
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_stdint_h=yes
ac_cv_header_stdio_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-pc-linux-gnu
ac_cv_objext=o
ac_cv_path_EGREP='/bin/grep -E'
ac_cv_path_FGREP='/bin/grep -F'
ac_cv_path_GREP=/bin/grep
ac_cv_path_SED=/bin/sed
ac_cv_path_install='/usr/lib/portage/python3.10/ebuild-helpers/xattr/install -c'
ac_cv_path_lt_DD=/bin/dd
ac_cv_path_mkdir=/bin/mkdir
ac_cv_prog_AR=x86_64-pc-linux-gnu-ar
ac_cv_prog_AWK=gawk
ac_cv_prog_CC=clang
ac_cv_prog_DLLTOOL=dlltool
ac_cv_prog_OBJDUMP=objdump
ac_cv_prog_RANLIB=x86_64-pc-linux-gnu-ranlib
ac_cv_prog_STRIP=x86_64-pc-linux-gnu-strip
ac_cv_prog_ac_ct_FILECMD=file
ac_cv_prog_cc_c11=
ac_cv_prog_cc_g=yes
ac_cv_prog_cc_stdc=
ac_cv_prog_make_make_set=yes
ac_cv_search_strerror='none required'
am_cv_CC_dependencies_compiler_type=none
am_cv_make_support_nested_variables=yes
am_cv_prog_cc_c_o=yes
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/x86_64-pc-linux-gnu-ld
lt_cv_path_NM=x86_64-pc-linux-gnu-nm
lt_cv_path_mainfest_tool=no
lt_cv_prog_compiler_c_o=yes
lt_cv_prog_compiler_pic='-fPIC -DPIC'
lt_cv_prog_compiler_pic_works=yes
lt_cv_prog_compiler_rtti_exceptions=yes
lt_cv_prog_compiler_static_works=yes
lt_cv_prog_gnu_ld=yes
lt_cv_sharedlib_from_linklib_cmd='printf %s\n'
lt_cv_shlibpath_overrides_runpath=yes
lt_cv_sys_global_symbol_pipe='/bin/sed -n -e '\''s/^.*[	 ]\([ABCDGIRSTW][ABCDGIRSTW]*\)[	 ][	 ]*\([_A-Za-z][_A-Za-z0-9]*\)$/\1 \2 \2/p'\'' | /bin/sed '\''/ __gnu_lto/d'\'''
lt_cv_sys_global_symbol_to_c_name_address='/bin/sed -n -e '\''s/^: \(.*\) .*$/  {"\1", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/  {"\1", (void *) \&\1},/p'\'''
lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='/bin/sed -n -e '\''s/^: \(.*\) .*$/  {"\1", (void *) 0},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(lib.*\)$/  {"\1", (void *) \&\1},/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/  {"lib\1", (void *) \&\1},/p'\'''
lt_cv_sys_global_symbol_to_cdecl='/bin/sed -n -e '\''s/^T .* \(.*\)$/extern int \1();/p'\'' -e '\''s/^[ABCDGIRSTW][ABCDGIRSTW]* .* \(.*\)$/extern char \1;/p'\'''
lt_cv_sys_global_symbol_to_import=
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
lt_cv_truncate_bin='/bin/dd bs=4096 count=1'

## ----------------- ##
## Output variables. ##
## ----------------- ##

ACLOCAL='${SHELL} '\''/var/tmp/portage/sci-libs/gerris-20131206-r1/work/gerris-snapshot-131206/missing'\'' aclocal-1.16'
AMDEPBACKSLASH=''
AMDEP_FALSE=''
AMDEP_TRUE='#'
AMTAR='$${TAR-tar}'
AM_BACKSLASH='\'
AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
AM_DEFAULT_VERBOSITY='1'
AM_V='$(V)'
AR='x86_64-pc-linux-gnu-ar'
AS='as'
AUTOCONF='${SHELL} '\''/var/tmp/portage/sci-libs/gerris-20131206-r1/work/gerris-snapshot-131206/missing'\'' autoconf'
AUTOHEADER='${SHELL} '\''/var/tmp/portage/sci-libs/gerris-20131206-r1/work/gerris-snapshot-131206/missing'\'' autoheader'
AUTOMAKE='${SHELL} '\''/var/tmp/portage/sci-libs/gerris-20131206-r1/work/gerris-snapshot-131206/missing'\'' automake-1.16'
AWK='gawk'
BUILD_AGMG_FALSE=''
BUILD_AGMG_TRUE=''
BUILD_HYPRE_FALSE=''
BUILD_HYPRE_TRUE=''
BUILD_LIS_FALSE=''
BUILD_LIS_TRUE=''
BUILD_ODE_FALSE=''
BUILD_ODE_TRUE=''
BUILD_STOKES_FALSE=''
BUILD_STOKES_TRUE=''
BUILD_TIDE_FALSE=''
BUILD_TIDE_TRUE=''
BUILD_WAVEWATCH_FALSE=''
BUILD_WAVEWATCH_TRUE=''
CC='clang'
CCDEPMODE='depmode=none'
CFLAGS='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types -D_XOPEN_SOURCE=700 -D_DEFAULT_SOURCE -D_GNU_SOURCE -Wall -Werror-implicit-function-declaration -Wmissing-prototypes -Wmissing-declarations -pipe -std=c99'
CPPFLAGS=' -I/usr/include/hypre'
CSCOPE='cscope'
CTAGS='ctags'
CYGPATH_W='echo'
DARCS_CONTROLLED_FALSE=''
DARCS_CONTROLLED_TRUE=''
DEFS=''
DEPDIR='.deps'
DLLTOOL='dlltool'
DSYMUTIL=''
DUMPBIN=''
ECHO_C=''
ECHO_N='-n'
ECHO_T=''
EGREP='/bin/grep -E'
ETAGS='etags'
EXEEXT=''
F77=''
FC=''
FCFLAGS='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types'
FFLAGS='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types'
FFTW3_CFLAGS=''
FFTW3_LIBS=''
FGREP='/bin/grep -F'
FILECMD='file'
FLIBS=''
GFS2D_LIBS=''
GFS3D_LIBS=''
GFS_COMPILATION_FLAGS='-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types'
GFS_MAJOR_VERSION='1'
GFS_MICRO_VERSION='2'
GFS_MINOR_VERSION='3'
GFS_VERSION='1.3.2'
GREP='/bin/grep'
GSL_CFLAGS=''
GSL_CONFIG=''
GSL_LIBS=''
GTS_CFLAGS=''
GTS_LIBS=''
HAS_FFTW3_FALSE=''
HAS_FFTW3_TRUE=''
HAS_GSL_FALSE=''
HAS_GSL_TRUE=''
HAS_LIBPROJ_FALSE=''
HAS_LIBPROJ_TRUE=''
HAS_NETCDF_FALSE=''
HAS_NETCDF_TRUE=''
INSTALL_DATA='${INSTALL} -m 644'
INSTALL_PROGRAM='${INSTALL}'
INSTALL_SCRIPT='${INSTALL}'
INSTALL_STRIP_PROGRAM='$(install_sh) -c -s'
LD='/usr/bin/x86_64-pc-linux-gnu-ld -m elf_x86_64'
LDFLAGS='-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0'
LIBOBJS=''
LIBS=''
LIBTOOL='$(SHELL) $(top_builddir)/libtool --silent'
LIPO=''
LN_S='ln -s'
LTLIBOBJS=''
LT_AGE='0'
LT_CURRENT='2'
LT_RELEASE='1.3'
LT_REVISION='0'
LT_SYS_LIBRARY_PATH=''
MAINT='#'
MAINTAINER_MODE_FALSE=''
MAINTAINER_MODE_TRUE='#'
MAKEINFO='${SHELL} '\''/var/tmp/portage/sci-libs/gerris-20131206-r1/work/gerris-snapshot-131206/missing'\'' makeinfo'
MANIFEST_TOOL=':'
MKDIR_P='/bin/mkdir -p'
NM='x86_64-pc-linux-gnu-nm'
NMEDIT=''
NO_UNDEFINED='-no-undefined'
OBJDUMP='objdump'
OBJEXT='o'
ODE_CFLAGS=''
ODE_LIBS=''
OPEN_MEMSTREAM_FALSE=''
OPEN_MEMSTREAM_TRUE=''
OTOOL64=''
OTOOL=''
PACKAGE='gerris'
PACKAGE_BUGREPORT=''
PACKAGE_NAME=''
PACKAGE_STRING=''
PACKAGE_TARNAME=''
PACKAGE_URL=''
PACKAGE_VERSION=''
PATH_SEPARATOR=':'
PKG_CONFIG=''
PKG_CONFIG_LIBDIR=''
PKG_CONFIG_PATH=''
RANLIB='x86_64-pc-linux-gnu-ranlib'
SED='/bin/sed'
SET_MAKE=''
SHELL='/bin/sh'
STRIP='x86_64-pc-linux-gnu-strip'
VERSION='1.3.2'
W3INIT=''
WEBROOT='/var/www/site-gerris/gerris'
ac_ct_AR=''
ac_ct_CC=''
ac_ct_DUMPBIN=''
ac_ct_F77=''
ac_ct_FC=''
am__EXEEXT_FALSE=''
am__EXEEXT_TRUE=''
am__fastdepCC_FALSE=''
am__fastdepCC_TRUE='#'
am__include='include'
am__isrc=''
am__leading_dot='.'
am__nodep=''
am__quote=''
am__tar='$${TAR-tar} chof - "$$tardir"'
am__untar='$${TAR-tar} xf -'
bindir='${exec_prefix}/bin'
build='x86_64-pc-linux-gnu'
build_alias='x86_64-pc-linux-gnu'
build_cpu='x86_64'
build_os='linux-gnu'
build_vendor='pc'
datadir='/usr/share'
datarootdir='${prefix}/share'
docdir='/usr/share/doc/gerris-20131206-r1'
dvidir='${docdir}'
exec_prefix='NONE'
have_m4=''
have_pkg_config=''
host='x86_64-pc-linux-gnu'
host_alias='x86_64-pc-linux-gnu'
host_cpu='x86_64'
host_os='linux-gnu'
host_vendor='pc'
htmldir='/usr/share/doc/gerris-20131206-r1/html'
includedir='${prefix}/include'
infodir='/usr/share/info'
install_sh='${SHELL} /var/tmp/portage/sci-libs/gerris-20131206-r1/work/gerris-snapshot-131206/install-sh'
libdir='/usr/lib64'
libexecdir='${exec_prefix}/libexec'
localedir='${datarootdir}/locale'
localstatedir='/var/lib'
mandir='/usr/share/man'
mkdir_p='$(MKDIR_P)'
ode=''
oldincludedir='/usr/include'
pdfdir='${docdir}'
prefix='/usr'
program_transform_name='s,x,x,'
psdir='${docdir}'
runstatedir='${localstatedir}/run'
sbindir='${exec_prefix}/sbin'
sharedstatedir='${prefix}/com'
sysconfdir='/etc'
target_alias=''
use_mpicc='no'

## ----------- ##
## confdefs.h. ##
## ----------- ##

/* confdefs.h */
#define PACKAGE_NAME ""
#define PACKAGE_TARNAME ""
#define PACKAGE_VERSION ""
#define PACKAGE_STRING ""
#define PACKAGE_BUGREPORT ""
#define PACKAGE_URL ""
#define GFS_MAJOR_VERSION 1
#define GFS_MINOR_VERSION 3
#define GFS_MICRO_VERSION 2
#define GFS_INTERFACE_AGE 0
#define GFS_BINARY_AGE 0
#define GFS_VERSION "1.3.2"
#define GFS_COMPILATION_FLAGS "-O2 -g0 -pipe -march=x86-64 -frecord-gcc-switches -fno-diagnostics-color -fmessage-length=0 -Werror=implicit-function-declaration -Werror=implicit-int -Werror=incompatible-function-pointer-types"
#define HAVE_STDIO_H 1
#define HAVE_STDLIB_H 1
#define HAVE_STRING_H 1
#define HAVE_INTTYPES_H 1
#define HAVE_STDINT_H 1
#define HAVE_STRINGS_H 1
#define HAVE_SYS_STAT_H 1
#define HAVE_SYS_TYPES_H 1
#define HAVE_UNISTD_H 1
#define STDC_HEADERS 1
#define HAVE_DLFCN_H 1
#define LT_OBJDIR ".libs/"

configure: exit 1