diff options
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 31 |
1 files changed, 29 insertions, 2 deletions
@@ -2671,17 +2671,44 @@ fi ########################################## +# Do we need libm +cat > $TMPC << EOF +#include <math.h> +int main(void) { return isnan(sin(0.0)); } +EOF +if compile_prog "" "" ; then + : +elif compile_prog "" "-lm" ; then + LIBS="-lm $LIBS" + libs_qga="-lm $libs_qga" +else + echo + echo "Error: libm check failed" + echo + exit 1 +fi + +########################################## # Do we need librt +# uClibc provides 2 versions of clock_gettime(), one with realtime +# support and one without. This means that the clock_gettime() don't +# need -lrt. We still need it for timer_create() so we check for this +# function in addition. cat > $TMPC <<EOF #include <signal.h> #include <time.h> -int main(void) { return clock_gettime(CLOCK_REALTIME, NULL); } +int main(void) { + timer_create(CLOCK_REALTIME, NULL, NULL); + return clock_gettime(CLOCK_REALTIME, NULL); +} EOF if compile_prog "" "" ; then : -elif compile_prog "" "-lrt" ; then +# we need pthread for static linking. use previous pthread test result +elif compile_prog "" "-lrt $pthread_lib" ; then LIBS="-lrt $LIBS" + libs_qga="-lrt $libs_qga" fi if test "$darwin" != "yes" -a "$mingw32" != "yes" -a "$solaris" != yes -a \ |