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cmake: add WEBP_USE_THREAD option

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this controls the config.h define of the same name and matches the
behavior of configure's --disable-threading

Bug: webp:502
Change-Id: Id135bbf4e6b3c9900e2b4f4f7ab744b3457ce41c
This commit is contained in:
James Zern
2021-02-05 15:05:29 -08:00
parent 926ce921f3
commit 759b9d5a06
2 changed files with 18 additions and 17 deletions
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33
cmake/deps.cmake
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@ -22,26 +22,25 @@ check_c_source_compiles("
" HAVE_BUILTIN_BSWAP64)
# Check for libraries.
if(NOT WEBP_BUILD_WEBP_JS)
# Disable pThreads for WASM.
if(WEBP_USE_THREAD)
find_package(Threads)
endif()
if(Threads_FOUND)
# work around cmake bug on QNX (https://cmake.org/Bug/view.php?id=11333)
if(CMAKE_USE_PTHREADS_INIT AND NOT CMAKE_SYSTEM_NAME STREQUAL "QNX")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
if(Threads_FOUND)
# work around cmake bug on QNX (https://cmake.org/Bug/view.php?id=11333)
if(CMAKE_USE_PTHREADS_INIT AND NOT CMAKE_SYSTEM_NAME STREQUAL "QNX")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -pthread")
endif()
check_c_source_compiles("
#include <pthread.h>
int main (void) {
int attr = PTHREAD_PRIO_INHERIT;
return attr;
}
" FLAG_HAVE_PTHREAD_PRIO_INHERIT)
set(HAVE_PTHREAD_PRIO_INHERIT ${FLAG_HAVE_PTHREAD_PRIO_INHERIT})
list(APPEND WEBP_DEP_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
endif()
check_c_source_compiles("
#include <pthread.h>
int main (void) {
int attr = PTHREAD_PRIO_INHERIT;
return attr;
}
" FLAG_HAVE_PTHREAD_PRIO_INHERIT)
set(HAVE_PTHREAD_PRIO_INHERIT ${FLAG_HAVE_PTHREAD_PRIO_INHERIT})
list(APPEND WEBP_DEP_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
set(WEBP_USE_THREAD ${Threads_FOUND})
endif()
set(WEBP_USE_THREAD ${Threads_FOUND})
# TODO: this seems unused, check with autotools.
set(LT_OBJDIR ".libs/")