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--prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/11.2.0 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.2.0 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.2.0/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/11.2.0/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/include/g++-v11 --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/11.2.0/python --enable-languages=c c++ fortran --enable-obsolete --enable-secureplt --disable-werror --with-system-zlib --enable-nls --without-included-gettext --disable-libunwind-exceptions --enable-checking=release --with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo 11.2.0 p1' --disable-esp --enable-libstdcxx-time --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-multilib --with-multilib-list=m32 m64 --disable-fixed-point --enable-targets=all --enable-libgomp --disable-libssp --disable-libada 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/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/libgomp.spec] ignore line: [COLLECT_GCC_OPTIONS='-fdiagnostics-color=never' '-pipe' '-march=native' '-O2' '-fopenmp' '-v' '-o' 'cmTC_43de3' '-v' '-shared-libgcc' '-pthread' '-dumpdir' 'cmTC_43de3.'] link line: [ /usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/collect2 -plugin /usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/liblto_plugin.so -plugin-opt=/usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/lto-wrapper -plugin-opt=-fresolution=/var/tmp/portage/sci-chemistry/gromacs-2021.2/temp/cc2teyFu.res -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lpthread -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -pie -o cmTC_43de3 /usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64/Scrt1.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64/crti.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/crtbeginS.o -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0 -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64 -L/lib/../lib64 -L/usr/lib/../lib64 -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../x86_64-pc-linux-gnu/lib -L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../.. -O1 --as-needed --defsym=__gentoo_check_ldflags__=0 CMakeFiles/cmTC_43de3.dir/OpenMPTryFlag.cpp.o -lstdc++ -lm -lgomp -lgcc_s -lgcc -lpthread -lc -lgcc_s -lgcc /usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/crtendS.o /usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64/crtn.o] arg [/usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/collect2] ==> ignore arg [-plugin] ==> ignore arg [/usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/liblto_plugin.so] ==> ignore arg [-plugin-opt=/usr/libexec/gcc/x86_64-pc-linux-gnu/11.2.0/lto-wrapper] ==> ignore arg [-plugin-opt=-fresolution=/var/tmp/portage/sci-chemistry/gromacs-2021.2/temp/cc2teyFu.res] ==> ignore arg [-plugin-opt=-pass-through=-lgcc_s] ==> ignore arg [-plugin-opt=-pass-through=-lgcc] ==> ignore arg [-plugin-opt=-pass-through=-lpthread] ==> ignore arg [-plugin-opt=-pass-through=-lc] ==> ignore arg [-plugin-opt=-pass-through=-lgcc_s] ==> ignore arg [-plugin-opt=-pass-through=-lgcc] ==> ignore arg [--eh-frame-hdr] ==> ignore arg [-m] ==> ignore arg [elf_x86_64] ==> ignore arg [-dynamic-linker] ==> ignore arg [/lib64/ld-linux-x86-64.so.2] ==> ignore arg [-pie] ==> ignore arg [-o] ==> ignore arg [cmTC_43de3] ==> ignore arg [-L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0] ==> dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0] arg [-L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64] ==> dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64] arg [-L/lib/../lib64] ==> dir [/lib/../lib64] arg [-L/usr/lib/../lib64] ==> dir [/usr/lib/../lib64] arg [-L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../x86_64-pc-linux-gnu/lib] ==> dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../x86_64-pc-linux-gnu/lib] arg [-L/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../..] ==> dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../..] arg [-O1] ==> ignore arg [--as-needed] ==> ignore arg [--defsym=__gentoo_check_ldflags__=0] ==> ignore arg [CMakeFiles/cmTC_43de3.dir/OpenMPTryFlag.cpp.o] ==> ignore arg [-lstdc++] ==> lib [stdc++] arg [-lm] ==> lib [m] arg [-lgomp] ==> lib [gomp] arg [-lgcc_s] ==> lib [gcc_s] arg [-lgcc] ==> lib [gcc] arg [-lpthread] ==> lib [pthread] arg [-lc] ==> lib [c] arg [-lgcc_s] ==> lib [gcc_s] arg [-lgcc] ==> lib [gcc] collapse library dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0] ==> [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0] collapse library dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../lib64] ==> [/usr/lib64] collapse library dir [/lib/../lib64] ==> [/lib64] collapse library dir [/usr/lib/../lib64] ==> [/usr/lib64] collapse library dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../x86_64-pc-linux-gnu/lib] ==> [/usr/x86_64-pc-linux-gnu/lib] collapse library dir [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../..] ==> [/usr/lib] implicit libs: [stdc++;m;gomp;gcc_s;gcc;pthread;c;gcc_s;gcc] implicit objs: [] implicit dirs: [/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0;/usr/lib64;/lib64;/usr/x86_64-pc-linux-gnu/lib;/usr/lib] implicit fwks: [] Performing C SOURCE FILE Test CFLAGS_WARN_NO_MISSING_FIELD_INITIALIZERS succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_efe8f && [1/2] Building C object CMakeFiles/cmTC_efe8f.dir/src.c.o [2/2] Linking C executable cmTC_efe8f Source file was: int main(void) { return 0; } Performing C SOURCE FILE Test CFLAGS_EXCESS_PREC succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_7e951 && [1/2] Building C object CMakeFiles/cmTC_7e951.dir/src.c.o [2/2] Linking C executable cmTC_7e951 Source file was: int main(void) { return 0; } Performing C SOURCE FILE Test CFLAGS_COPT succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_f4412 && [1/2] Building C object CMakeFiles/cmTC_f4412.dir/src.c.o [2/2] Linking C executable cmTC_f4412 Source file was: int main(void) { return 0; } Performing C SOURCE FILE Test CFLAGS_NOINLINE succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_1c113 && [1/2] Building C object CMakeFiles/cmTC_1c113.dir/src.c.o [2/2] Linking C executable cmTC_1c113 Source file was: int main(void) { return 0; } Performing C++ SOURCE FILE Test CXXFLAGS_WARN_NO_MISSING_FIELD_INITIALIZERS succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_24e76 && [1/2] Building CXX object CMakeFiles/cmTC_24e76.dir/src.cxx.o [2/2] Linking CXX executable cmTC_24e76 Source file was: int main() { return 0; } Performing C++ SOURCE FILE Test CXXFLAGS_EXCESS_PREC succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_8b4e6 && [1/2] Building CXX object CMakeFiles/cmTC_8b4e6.dir/src.cxx.o [2/2] Linking CXX executable cmTC_8b4e6 Source file was: int main() { return 0; } Performing C++ SOURCE FILE Test CXXFLAGS_COPT succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_16fa4 && [1/2] Building CXX object CMakeFiles/cmTC_16fa4.dir/src.cxx.o [2/2] Linking CXX executable cmTC_16fa4 Source file was: int main() { return 0; } Performing C++ SOURCE FILE Test CXXFLAGS_NOINLINE succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_98cf0 && [1/2] Building CXX object CMakeFiles/cmTC_98cf0.dir/src.cxx.o [2/2] Linking CXX executable cmTC_98cf0 Source file was: int main() { return 0; } Determining if files unistd.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_49b9f && [1/2] Building C object CMakeFiles/cmTC_49b9f.dir/HAVE_UNISTD_H.c.o [2/2] Linking C executable cmTC_49b9f Determining if files pwd.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_525e1 && [1/2] Building C object CMakeFiles/cmTC_525e1.dir/HAVE_PWD_H.c.o [2/2] Linking C executable cmTC_525e1 Determining if files dirent.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_630d6 && [1/2] Building C object CMakeFiles/cmTC_630d6.dir/HAVE_DIRENT_H.c.o [2/2] Linking C executable cmTC_630d6 Determining if files time.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_64f80 && [1/2] Building C object CMakeFiles/cmTC_64f80.dir/HAVE_TIME_H.c.o [2/2] Linking C executable cmTC_64f80 Determining if files sys/time.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_a0384 && [1/2] Building C object CMakeFiles/cmTC_a0384.dir/HAVE_SYS_TIME_H.c.o [2/2] Linking C executable cmTC_a0384 Determining if files sched.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_42d72 && [1/2] Building C object CMakeFiles/cmTC_42d72.dir/HAVE_SCHED_H.c.o [2/2] Linking C executable cmTC_42d72 Determining if files xmmintrin.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_1dc3c && [1/2] Building C object CMakeFiles/cmTC_1dc3c.dir/HAVE_XMMINTRIN_H.c.o [2/2] Linking C executable cmTC_1dc3c Determining if the gettimeofday exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_dfbe7 && [1/2] Building CXX object CMakeFiles/cmTC_dfbe7.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_dfbe7 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef gettimeofday return ((int*)(&gettimeofday))[argc]; #else (void)argc; return 0; #endif } Determining if the sysconf exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_4e899 && [1/2] Building CXX object CMakeFiles/cmTC_4e899.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_4e899 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef sysconf return ((int*)(&sysconf))[argc]; #else (void)argc; return 0; #endif } Determining if the nice exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_13fa9 && [1/2] Building CXX object CMakeFiles/cmTC_13fa9.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_13fa9 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef nice return ((int*)(&nice))[argc]; #else (void)argc; return 0; #endif } Determining if the fsync exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_0fb34 && [1/2] Building CXX object CMakeFiles/cmTC_0fb34.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_0fb34 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef fsync return ((int*)(&fsync))[argc]; #else (void)argc; return 0; #endif } Determining if the fileno exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_a44d3 && [1/2] Building CXX object CMakeFiles/cmTC_a44d3.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_a44d3 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef fileno return ((int*)(&fileno))[argc]; #else (void)argc; return 0; #endif } Determining if the sigaction exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_97f68 && [1/2] Building CXX object CMakeFiles/cmTC_97f68.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_97f68 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef sigaction return ((int*)(&sigaction))[argc]; #else (void)argc; return 0; #endif } Performing C++ SOURCE FILE Test HAVE_BUILTIN_CLZ succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_01c91 && [1/2] Building CXX object CMakeFiles/cmTC_01c91.dir/src.cxx.o [2/2] Linking CXX executable cmTC_01c91 Source file was: int main(){ return __builtin_clz(1);} Performing C++ SOURCE FILE Test HAVE_BUILTIN_CLZLL succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_283a4 && [1/2] Building CXX object CMakeFiles/cmTC_283a4.dir/src.cxx.o [2/2] Linking CXX executable cmTC_283a4 Source file was: int main(){ return __builtin_clzll(1);} Determining if the function clock_gettime exists in the rt passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_5babb && [1/2] Building C object CMakeFiles/cmTC_5babb.dir/CheckFunctionExists.c.o [2/2] Linking C executable cmTC_5babb Determining if the function feenableexcept exists in the m passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_06978 && [1/2] Building C object CMakeFiles/cmTC_06978.dir/CheckFunctionExists.c.o [2/2] Linking C executable cmTC_06978 Determining if the function fedisableexcept exists in the m passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_fc392 && [1/2] Building C object CMakeFiles/cmTC_fc392.dir/CheckFunctionExists.c.o [2/2] Linking C executable cmTC_fc392 Performing C SOURCE FILE Test sched_affinity_compile succeeded with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_4cc57 && [1/2] Building C object CMakeFiles/cmTC_4cc57.dir/src.c.o [2/2] Linking C executable cmTC_4cc57 Source file was: #ifndef _GNU_SOURCE #define _GNU_SOURCE 1 #endif #include int main(void) { int i; cpu_set_t mask; CPU_ZERO(&mask); sched_getaffinity(0, sizeof(cpu_set_t), &mask); if(CPU_ISSET(0,&mask)) { CPU_CLR(0,&mask); CPU_SET(0,&mask); } sched_setaffinity(0, sizeof(cpu_set_t), &mask); return CPU_COUNT(&mask); } Determining if files mm_malloc.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_3c542 && [1/2] Building C object CMakeFiles/cmTC_3c542.dir/HAVE_MM_MALLOC_H.c.o [2/2] Linking C executable cmTC_3c542 Determining if files malloc.h exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_61218 && [1/2] Building C object CMakeFiles/cmTC_61218.dir/HAVE_MALLOC_H.c.o [2/2] Linking C executable cmTC_61218 Determining if the posix_memalign exist passed with the following output: Change Dir: /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp Run Build Command(s):/usr/bin/ninja cmTC_448d3 && [1/2] Building CXX object CMakeFiles/cmTC_448d3.dir/CheckSymbolExists.cxx.o [2/2] Linking CXX executable cmTC_448d3 File /var/tmp/portage/sci-chemistry/gromacs-2021.2/work/gromacs-2021.2_float_mpi/CMakeFiles/CMakeTmp/CheckSymbolExists.cxx: /* */ #include int main(int argc, char** argv) { (void)argv; #ifndef posix_memalign return ((int*)(&posix_memalign))[argc]; #else (void)argc; return 0; #endif }