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cmake: simplify symbol availability checks (#1003)

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Sergiu Deitsch 2023-12-21 22:25:04 +01:00 committed by GitHub
parent b7686b6995
commit dfb7703542
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 17 additions and 37 deletions
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54
CMakeLists.txt
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@ -144,13 +144,27 @@ check_cxx_compiler_flag (-Wunnamed-type-template-args
cmake_push_check_state (RESET)
set (CMAKE_REQUIRED_DEFINITIONS -D_XOPEN_SOURCE=500)
if (Threads_FOUND)
set (CMAKE_REQUIRED_LIBRARIES Threads::Threads)
endif (Threads_FOUND)
check_cxx_symbol_exists (pthread_threadid_np "pthread.h" HAVE_PTHREAD_THREADID_NP)
check_cxx_symbol_exists (pthread_rwlock_destroy pthread.h HAVE_RWLOCK_DESTROY)
check_cxx_symbol_exists (pthread_rwlock_init pthread.h HAVE_RWLOCK_INIT)
check_cxx_symbol_exists (pthread_rwlock_rdlock pthread.h HAVE_RWLOCK_RDLOCK)
check_cxx_symbol_exists (pthread_rwlock_unlock pthread.h HAVE_RWLOCK_UNLOCK)
check_cxx_symbol_exists (pthread_rwlock_wrlock pthread.h HAVE_RWLOCK_WRLOCK)
check_cxx_symbol_exists (pthread_threadid_np pthread.h HAVE_PTHREAD_THREADID_NP)
cmake_pop_check_state ()
if (HAVE_RWLOCK_INIT AND HAVE_RWLOCK_RDLOCK AND HAVE_RWLOCK_WRLOCK AND
HAVE_RWLOCK_UNLOCK AND HAVE_RWLOCK_DESTROY)
set (HAVE_RWLOCK TRUE)
endif (HAVE_RWLOCK_INIT AND HAVE_RWLOCK_RDLOCK AND HAVE_RWLOCK_WRLOCK AND
HAVE_RWLOCK_UNLOCK AND HAVE_RWLOCK_DESTROY)
cmake_push_check_state (RESET)
set (CMAKE_REQUIRED_LIBRARIES dbghelp)
check_cxx_symbol_exists (UnDecorateSymbolName "windows.h;dbghelp.h" HAVE_DBGHELP)
@ -185,23 +199,6 @@ int main(void)
}
" HAVE___SYNC_VAL_COMPARE_AND_SWAP)
if (Threads_FOUND)
cmake_push_check_state (RESET)
set (CMAKE_REQUIRED_LIBRARIES Threads::Threads)
check_cxx_source_compiles ("
#define _XOPEN_SOURCE 500
#include <pthread.h>
int main(void)
{
pthread_rwlock_t l;
pthread_rwlock_init(&l, NULL);
pthread_rwlock_rdlock(&l);
return 0;
}
" HAVE_RWLOCK)
cmake_pop_check_state ()
endif (Threads_FOUND)
check_cxx_source_compiles ("
__declspec(selectany) int a;
int main(void) { return 0; }
@ -362,14 +359,7 @@ if (WITH_SYMBOLIZE)
endif (HAVE_SYMBOLIZE)
elseif (UNIX)
cmake_push_check_state (RESET)
check_cxx_source_compiles ([=[
int main()
{
#ifndef __ELF__
#error __ELF__ not defined
#endif
}
]=] HAVE_SYMBOLIZE)
check_cxx_symbol_exists (__ELF__ "" HAVE_SYMBOLIZE)
cmake_pop_check_state ()
elseif (APPLE AND HAVE_DLADDR)
set (HAVE_SYMBOLIZE 1)
@ -380,17 +370,7 @@ endif (WITH_SYMBOLIZE)
# building the library.
add_compile_definitions (GLOG_NO_SYMBOLIZE_DETECTION)
check_cxx_source_compiles ("
#include <cstdlib>
#include <ctime>
int main()
{
time_t timep;
struct tm result;
localtime_r(&timep, &result);
return EXIT_SUCCESS;
}
" HAVE_LOCALTIME_R)
check_cxx_symbol_exists (localtime_r "cstdlib;ctime" HAVE_LOCALTIME_R)
set (SIZEOF_VOID_P ${CMAKE_SIZEOF_VOID_P})