CMakeError.log

CMakeError.log (text/plain), 23.05 KB, created by Toralf Förster on 2022-03-26 09:14:25 UTC

Performing C SOURCE FILE Test C_COMPILER_SUPPORTS_-Qunused-arguments failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_a052f && [1/2] Building C object CMakeFiles/cmTC_a052f.dir/src.c.o
FAILED: CMakeFiles/cmTC_a052f.dir/src.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE   -DC_COMPILER_SUPPORTS_-Qunused-arguments -Qunused-arguments -o CMakeFiles/cmTC_a052f.dir/src.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.c
x86_64-pc-linux-gnu-gcc: error: unrecognized command-line option '-Qunused-arguments'
ninja: build stopped: subcommand failed.


Source file was:
int main(void) { return 0; }
Performing C SOURCE FILE Test C_COMPILER_SUPPORTS_-Wno-parentheses-equality failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_cbf4b && [1/2] Building C object CMakeFiles/cmTC_cbf4b.dir/src.c.o
<command-line>: warning: ISO C99 requires whitespace after the macro name
cc1: note: unrecognized command-line option '-Wno-parentheses-equality' may have been intended to silence earlier diagnostics
[2/2] Linking C executable cmTC_cbf4b


Source file was:
int main(void) { return 0; }
Performing C++ SOURCE FILE Test CXX_COMPILER_SUPPORTS_-Qunused-arguments failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_86f19 && [1/2] Building CXX object CMakeFiles/cmTC_86f19.dir/src.cxx.o
FAILED: CMakeFiles/cmTC_86f19.dir/src.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++    -DNDEBUG -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions -fno-rtti  -fPIE   -DCXX_COMPILER_SUPPORTS_-Qunused-arguments -Qunused-arguments -o CMakeFiles/cmTC_86f19.dir/src.cxx.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.cxx
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-Qunused-arguments'
ninja: build stopped: subcommand failed.


Source file was:
int main() { return 0; }
Performing C++ SOURCE FILE Test CXX_COMPILER_SUPPORTS_-Wno-parentheses-equality failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_2fe55 && [1/2] Building CXX object CMakeFiles/cmTC_2fe55.dir/src.cxx.o
<command-line>: warning: ISO C++11 requires whitespace after the macro name
cc1plus: note: unrecognized command-line option '-Wno-parentheses-equality' may have been intended to silence earlier diagnostics
[2/2] Linking CXX executable cmTC_2fe55


Source file was:
int main() { return 0; }
Performing C SOURCE FILE Test C_COMPILER_SUPPORTS_-fcolor-diagnostics failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_ca685 && [1/2] Building C object CMakeFiles/cmTC_ca685.dir/src.c.o
FAILED: CMakeFiles/cmTC_ca685.dir/src.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE   -DC_COMPILER_SUPPORTS_-fcolor-diagnostics -fcolor-diagnostics -o CMakeFiles/cmTC_ca685.dir/src.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.c
x86_64-pc-linux-gnu-gcc: error: unrecognized command-line option '-fcolor-diagnostics'
ninja: build stopped: subcommand failed.


Source file was:
int main(void) { return 0; }
Performing C++ SOURCE FILE Test CXX_COMPILER_SUPPORTS_-fcolor-diagnostics failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_67fcc && [1/2] Building CXX object CMakeFiles/cmTC_67fcc.dir/src.cxx.o
FAILED: CMakeFiles/cmTC_67fcc.dir/src.cxx.o 
/usr/bin/x86_64-pc-linux-gnu-g++    -DNDEBUG -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-odr -Wno-stringop-overread -Wno-nonnull -Wno-array-bounds -Wno-noexcept-type -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions -fno-rtti  -fPIE   -DCXX_COMPILER_SUPPORTS_-fcolor-diagnostics -fcolor-diagnostics -o CMakeFiles/cmTC_67fcc.dir/src.cxx.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.cxx
x86_64-pc-linux-gnu-g++: error: unrecognized command-line option '-fcolor-diagnostics'
ninja: build stopped: subcommand failed.


Source file was:
int main() { return 0; }
Performing C SOURCE FILE Test ATOMICS_ARE_BUILTIN failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_7b092 && [1/2] Building C object CMakeFiles/cmTC_7b092.dir/src.c.o
[2/2] Linking C executable cmTC_7b092
FAILED: cmTC_7b092 
: && /usr/bin/x86_64-pc-linux-gnu-gcc -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--no-keep-memory CMakeFiles/cmTC_7b092.dir/src.c.o -o cmTC_7b092   && :
/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/bin/ld: CMakeFiles/cmTC_7b092.dir/src.c.o: in function `main':
src.c:(.text.startup+0x6e): undefined reference to `__atomic_compare_exchange_16'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.


Source file was:

#include <stdbool.h>
#include <stdint.h>

#define COMPILER(FEATURE) (defined COMPILER_##FEATURE  && COMPILER_##FEATURE)

#if defined(__clang__)
#define COMPILER_CLANG 1
#endif

#if defined(__GNUC__)
#define COMPILER_GCC_COMPATIBLE 1
#endif

#if COMPILER(GCC_COMPATIBLE) && !COMPILER(CLANG)
#define COMPILER_GCC 1
#endif

#if defined(_MSC_VER)
#define COMPILER_MSVC 1
#endif

#define CPU(_FEATURE) (defined CPU_##_FEATURE && CPU_##_FEATURE)


#if COMPILER(GCC_COMPATIBLE)
/* __LP64__ is not defined on 64bit Windows since it uses LLP64. Using __SIZEOF_POINTER__ is simpler. */
#if __SIZEOF_POINTER__ == 8
#define CPU_ADDRESS64 1
#elif __SIZEOF_POINTER__ == 4
#define CPU_ADDRESS32 1
#endif
#endif

static inline bool compare_and_swap_bool_weak(bool* ptr, bool old_value, bool new_value)
{
#if COMPILER(CLANG)
    return __c11_atomic_compare_exchange_weak((_Atomic bool*)ptr, &old_value, new_value, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
#else
    return __atomic_compare_exchange_n((bool*)ptr, &old_value, new_value, false, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
#endif
}

#if CPU(ADDRESS64)

typedef __uint128_t pair;

static inline bool compare_and_swap_pair_weak(void* raw_ptr, pair old_value, pair new_value)
{
#if COMPILER(CLANG)
    return __c11_atomic_compare_exchange_weak((_Atomic pair*)raw_ptr, &old_value, new_value, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
#else
    return __atomic_compare_exchange_n((pair*)raw_ptr, &old_value, new_value, true, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
#endif
}
#endif

static inline bool compare_and_swap_uint64_weak(uint64_t* ptr, uint64_t old_value, uint64_t new_value)
{
#if COMPILER(CLANG)
    return __c11_atomic_compare_exchange_weak((_Atomic uint64_t*)ptr, &old_value, new_value, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
#else
    return __atomic_compare_exchange_n((uint64_t*)ptr, &old_value, new_value, true, __ATOMIC_SEQ_CST, __ATOMIC_SEQ_CST);
#endif
}

int main() {
    bool y = false;
    bool expected = true;
    bool j = compare_and_swap_bool_weak(&y, expected, false);
#if CPU(ADDRESS64)
    pair x = 42;
    bool k = compare_and_swap_pair_weak(&x, 42, 55);
#endif
    uint64_t z = 42;
    bool l = compare_and_swap_uint64_weak(&z, 42, 56);
    int result = (j ||
#if CPU(ADDRESS64)
                  k ||
#endif
                  l) ? 0 : 1;
    return result;
}
    
Determining if the include file pthread_np.h exists failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_adaff && [1/2] Building C object CMakeFiles/cmTC_adaff.dir/CheckIncludeFile.c.o
FAILED: CMakeFiles/cmTC_adaff.dir/CheckIncludeFile.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE -o CMakeFiles/cmTC_adaff.dir/CheckIncludeFile.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckIncludeFile.c
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckIncludeFile.c:1:10: fatal error: pthread_np.h: No such file or directory
    1 | #include <pthread_np.h>
      |          ^~~~~~~~~~~~~~
compilation terminated.
ninja: build stopped: subcommand failed.



Determining if the function _aligned_malloc exists failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_865fb && [1/2] Building C object CMakeFiles/cmTC_865fb.dir/CheckFunctionExists.c.o
[2/2] Linking C executable cmTC_865fb
FAILED: cmTC_865fb 
: && /usr/bin/x86_64-pc-linux-gnu-gcc -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions -DCHECK_FUNCTION_EXISTS=_aligned_malloc -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--no-keep-memory -Wl,--disable-new-dtags CMakeFiles/cmTC_865fb.dir/CheckFunctionExists.c.o -o cmTC_865fb   && :
/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/bin/ld: CMakeFiles/cmTC_865fb.dir/CheckFunctionExists.c.o: in function `main':
CheckFunctionExists.c:(.text.startup+0xc): undefined reference to `_aligned_malloc'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.



Determining if the function IsDebuggerPresent exists failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_e76cf && [1/2] Building C object CMakeFiles/cmTC_e76cf.dir/CheckFunctionExists.c.o
[2/2] Linking C executable cmTC_e76cf
FAILED: cmTC_e76cf 
: && /usr/bin/x86_64-pc-linux-gnu-gcc -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions -DCHECK_FUNCTION_EXISTS=IsDebuggerPresent -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--no-keep-memory -Wl,--disable-new-dtags CMakeFiles/cmTC_e76cf.dir/CheckFunctionExists.c.o -o cmTC_e76cf   && :
/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/bin/ld: CMakeFiles/cmTC_e76cf.dir/CheckFunctionExists.c.o: in function `main':
CheckFunctionExists.c:(.text.startup+0xc): undefined reference to `IsDebuggerPresent'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.



Determining if the function strnstr exists failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_ede88 && [1/2] Building C object CMakeFiles/cmTC_ede88.dir/CheckFunctionExists.c.o
[2/2] Linking C executable cmTC_ede88
FAILED: cmTC_ede88 
: && /usr/bin/x86_64-pc-linux-gnu-gcc -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions -DCHECK_FUNCTION_EXISTS=strnstr -Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,--no-keep-memory -Wl,--disable-new-dtags CMakeFiles/cmTC_ede88.dir/CheckFunctionExists.c.o -o cmTC_ede88   && :
/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/bin/ld: CMakeFiles/cmTC_ede88.dir/CheckFunctionExists.c.o: in function `main':
CheckFunctionExists.c:(.text.startup+0xc): undefined reference to `strnstr'
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.



Determining if the pthread_main_np exist failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_e3cef && [1/2] Building C object CMakeFiles/cmTC_e3cef.dir/CheckSymbolExists.c.o
FAILED: CMakeFiles/cmTC_e3cef.dir/CheckSymbolExists.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE -o CMakeFiles/cmTC_e3cef.dir/CheckSymbolExists.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:2:10: fatal error: pthread_np.h: No such file or directory
    2 | #include <pthread_np.h>
      |          ^~~~~~~~~~~~~~
compilation terminated.
ninja: build stopped: subcommand failed.


File /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <pthread_np.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef pthread_main_np
  return ((int*)(&pthread_main_np))[argc];
#else
  (void)argc;
  return 0;
#endif
}
Determining if the MAP_ALIGNED exist failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_c25be && [1/2] Building C object CMakeFiles/cmTC_c25be.dir/CheckSymbolExists.c.o
FAILED: CMakeFiles/cmTC_c25be.dir/CheckSymbolExists.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE -o CMakeFiles/cmTC_c25be.dir/CheckSymbolExists.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c: In function ‘main’:
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: error: ‘MAP_ALIGNED’ undeclared (first use in this function)
    8 |   return ((int*)(&MAP_ALIGNED))[argc];
      |                   ^~~~~~~~~~~
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: note: each undeclared identifier is reported only once for each function it appears in
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:4:14: warning: parameter ‘argc’ set but not used [-Wunused-but-set-parameter]
    4 | int main(int argc, char** argv)
      |          ~~~~^~~~
ninja: build stopped: subcommand failed.


File /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <sys/mman.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef MAP_ALIGNED
  return ((int*)(&MAP_ALIGNED))[argc];
#else
  (void)argc;
  return 0;
#endif
}
Determining if the SHM_ANON exist failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_5c8bb && [1/2] Building C object CMakeFiles/cmTC_5c8bb.dir/CheckSymbolExists.c.o
FAILED: CMakeFiles/cmTC_5c8bb.dir/CheckSymbolExists.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE -o CMakeFiles/cmTC_5c8bb.dir/CheckSymbolExists.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c: In function ‘main’:
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: error: ‘SHM_ANON’ undeclared (first use in this function)
    8 |   return ((int*)(&SHM_ANON))[argc];
      |                   ^~~~~~~~
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: note: each undeclared identifier is reported only once for each function it appears in
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:4:14: warning: parameter ‘argc’ set but not used [-Wunused-but-set-parameter]
    4 | int main(int argc, char** argv)
      |          ~~~~^~~~
ninja: build stopped: subcommand failed.


File /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <sys/mman.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef SHM_ANON
  return ((int*)(&SHM_ANON))[argc];
#else
  (void)argc;
  return 0;
#endif
}
Determining if the timingsafe_bcmp exist failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_d04d3 && [1/2] Building C object CMakeFiles/cmTC_d04d3.dir/CheckSymbolExists.c.o
FAILED: CMakeFiles/cmTC_d04d3.dir/CheckSymbolExists.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc    -DNDEBUG -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE -o CMakeFiles/cmTC_d04d3.dir/CheckSymbolExists.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c: In function ‘main’:
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: error: ‘timingsafe_bcmp’ undeclared (first use in this function)
    8 |   return ((int*)(&timingsafe_bcmp))[argc];
      |                   ^~~~~~~~~~~~~~~
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:8:19: note: each undeclared identifier is reported only once for each function it appears in
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:4:14: warning: parameter ‘argc’ set but not used [-Wunused-but-set-parameter]
    4 | int main(int argc, char** argv)
      |          ~~~~^~~~
ninja: build stopped: subcommand failed.


File /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
/* */
#include <string.h>

int main(int argc, char** argv)
{
  (void)argv;
#ifndef timingsafe_bcmp
  return ((int*)(&timingsafe_bcmp))[argc];
#else
  (void)argc;
  return 0;
#endif
}
Performing C SOURCE FILE Test HAVE_STAT_BIRTHTIME_value failed with the following output:
Change Dir: /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp

Run Build Command(s):/usr/bin/ninja cmTC_4e6b5 && [1/2] Building C object CMakeFiles/cmTC_4e6b5.dir/src.c.o
FAILED: CMakeFiles/cmTC_4e6b5.dir/src.c.o 
/usr/bin/x86_64-pc-linux-gnu-gcc -DHAVE_STAT_BIRTHTIME_value   -DNDEBUG -fdiagnostics-color=always -Wextra -Wall -pipe -Wno-expansion-to-defined -Wno-psabi -Wno-misleading-indentation -Wno-maybe-uninitialized -Wwrite-strings -Wundef -Wpointer-arith -Wmissing-format-attribute -Wformat-security -Wcast-align -Wno-tautological-compare -pipe -march=native -fno-diagnostics-color -O2 -fno-strict-aliasing -fno-exceptions  -fPIE -o CMakeFiles/cmTC_4e6b5.dir/src.c.o -c /var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.c
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.c: In function ‘main’:
/var/tmp/portage/net-libs/webkit-gtk-2.36.0/work/webkit-gtk-2.36.0_build/CMakeFiles/CMakeTmp/src.c:6:34: error: ‘struct stat’ has no member named ‘st_birthtime’
    6 |   (void)sizeof(((struct stat *)0)->st_birthtime);
      |                                  ^~
ninja: build stopped: subcommand failed.


Source file was:

#include <sys/stat.h>

int main()
{
  (void)sizeof(((struct stat *)0)->st_birthtime);
  return 0;
}