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cmake: updated check for HAVE_POLL_FINE to match autotools

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Sergei Nikulov 2019-01-15 12:50:18 +03:00 • committed by Sergei Nikulov
parent 26d7f0094a
commit 99c2e7e554
3 changed files with 37 additions and 17 deletions
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42
CMake/OtherTests.cmake
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@ -177,20 +177,48 @@ int main(void) {
return 0;
}" HAVE_STRUCT_TIMEVAL)
include(CheckCSourceRuns)
# See HAVE_POLL in CMakeLists.txt for why poll is disabled on macOS
if(NOT APPLE)
set(CMAKE_REQUIRED_FLAGS)
if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
# if not cross-compilation...
include(CheckCSourceRuns)
set(CMAKE_REQUIRED_FLAGS "")
if(HAVE_SYS_POLL_H)
set(CMAKE_REQUIRED_FLAGS "-DHAVE_SYS_POLL_H")
elseif(HAVE_POLL_H)
set(CMAKE_REQUIRED_FLAGS "-DHAVE_POLL_H")
endif()
check_c_source_runs("
#include <stdlib.h>
#include <sys/time.h>
#ifdef HAVE_SYS_POLL_H
# include <sys/poll.h>
#elif HAVE_POLL_H
# include <poll.h>
#endif
int main(void) {
return poll((void *)0, 0, 10 /*ms*/);
int main(void)
{
if(0 != poll(0, 0, 10)) {
return 1; /* fail */
}
else {
/* detect the 10.12 poll() breakage */
struct timeval before, after;
int rc;
size_t us;
gettimeofday(&before, NULL);
rc = poll(NULL, 0, 500);
gettimeofday(&after, NULL);
us = (after.tv_sec - before.tv_sec) * 1000000 +
(after.tv_usec - before.tv_usec);
if(us < 400000) {
return 1;
}
}
return 0;
}" HAVE_POLL_FINE)
endif()