diff options
| author | Brad King <brad.king@kitware.com> | 2022-04-14 13:24:16 -0400 |
|---|---|---|
| committer | Brad King <brad.king@kitware.com> | 2022-04-26 13:54:53 -0400 |
| commit | c53748a3772ab7419e82e27fd49bf30ca7821383 (patch) | |
| tree | bc0af934ebced72782a52fe54376b373255a1617 /Modules/FindThreads.cmake | |
| parent | 564385194b53b656fc9d010329575ca957569401 (diff) | |
| download | cmake-c53748a3772ab7419e82e27fd49bf30ca7821383.tar.gz | |
FindThreads: Factor out helper macro for libc check
Diffstat (limited to 'Modules/FindThreads.cmake')
| -rw-r--r-- | Modules/FindThreads.cmake | 26 |
1 files changed, 17 insertions, 9 deletions
diff --git a/Modules/FindThreads.cmake b/Modules/FindThreads.cmake index fb99094951..c1531a4c24 100644 --- a/Modules/FindThreads.cmake +++ b/Modules/FindThreads.cmake @@ -91,6 +91,22 @@ int main(void) # Internal helper macro. # Do NOT even think about using it outside of this file! +macro(_threads_check_libc) + if(NOT Threads_FOUND) + if(CMAKE_C_COMPILER_LOADED) + CHECK_C_SOURCE_COMPILES("${PTHREAD_C_CXX_TEST_SOURCE}" CMAKE_HAVE_LIBC_PTHREAD) + elseif(CMAKE_CXX_COMPILER_LOADED) + CHECK_CXX_SOURCE_COMPILES("${PTHREAD_C_CXX_TEST_SOURCE}" CMAKE_HAVE_LIBC_PTHREAD) + endif() + if(CMAKE_HAVE_LIBC_PTHREAD) + set(CMAKE_THREAD_LIBS_INIT "") + set(Threads_FOUND TRUE) + endif() + endif () +endmacro() + +# Internal helper macro. +# Do NOT even think about using it outside of this file! macro(_threads_check_lib LIBNAME FUNCNAME VARNAME) if(NOT Threads_FOUND) CHECK_LIBRARY_EXISTS(${LIBNAME} ${FUNCNAME} "" ${VARNAME}) @@ -157,15 +173,7 @@ if(CMAKE_HAVE_PTHREAD_H) # We list some pthread functions in PTHREAD_C_CXX_TEST_SOURCE test code. # If the pthread functions already exist in C library, we could just use # them instead of linking to the additional pthread library. - if(CMAKE_C_COMPILER_LOADED) - CHECK_C_SOURCE_COMPILES("${PTHREAD_C_CXX_TEST_SOURCE}" CMAKE_HAVE_LIBC_PTHREAD) - elseif(CMAKE_CXX_COMPILER_LOADED) - CHECK_CXX_SOURCE_COMPILES("${PTHREAD_C_CXX_TEST_SOURCE}" CMAKE_HAVE_LIBC_PTHREAD) - endif() - if(CMAKE_HAVE_LIBC_PTHREAD) - set(CMAKE_THREAD_LIBS_INIT "") - set(Threads_FOUND TRUE) - endif() + _threads_check_libc() # Check for -pthread first if enabled. This is the recommended # way, but not backwards compatible as one must also pass -pthread |