diff options
author | Daniel Stenberg <daniel@haxx.se> | 2004-06-27 21:51:54 +0000 |
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committer | Daniel Stenberg <daniel@haxx.se> | 2004-06-27 21:51:54 +0000 |
commit | a7b99fc46339d0c3e1f2c095df371a7c88ed7907 (patch) | |
tree | a36bf361acab8182f6f964e2c4d99628872bce1f /configure.ac | |
parent | 6f252f470470698ff08cffc23daa7276bbc8d327 (diff) |
check for a fine poll() before it is used to sleep subsecond
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) |