diff options
Diffstat (limited to 'configure.ac')
-rw-r--r-- | configure.ac | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 63aa48493..29d31bd47 100644 --- a/configure.ac +++ b/configure.ac @@ -1201,6 +1201,31 @@ if test "$ac_cv_func_sigsetjmp" != "yes"; then ) fi +dnl poll() might be badly emulated, as in Mac OS X 10.3 (and other BSDs?) and +dnl to find out we make an extra check here! +if test "$ac_cv_func_poll" = "yes"; then + AC_MSG_CHECKING([if poll works with NULL inputs]) + AC_RUN_IFELSE([ +#ifdef HAVE_SYS_POLL_H +#include <sys/poll.h> +#endif + + int main(void) + { + /* make this return 0 == timeout since there's nothing to read from */ + return poll((void *)0, 0, 10 /*ms*/); + } +], + AC_MSG_RESULT(yes) + AC_DEFINE(HAVE_POLL_FINE, 1, [If you have a fine poll]), + AC_MSG_RESULT(no), + AC_MSG_RESULT(cross-compiling assumes yes) + AC_DEFINE(HAVE_POLL_FINE, 1, [If you have a fine poll]) + ) dnl end of AC_RUN_IFELSE +fi + + + AC_PATH_PROG( PERL, perl, , $PATH:/usr/local/bin/perl:/usr/bin/:/usr/local/bin ) AC_SUBST(PERL) |