| --- a/js/src/configure.in 2012-11-01 19:42:20.130330321 +0100 |
| +++ b/js/src/configure.in 2012-11-01 20:34:03.561351492 +0100 |
| @@ -3477,7 +3477,16 @@ |
| esac |
| |
| dnl Performance measurement headers. |
| -AC_CHECK_HEADER(linux/perf_event.h, HAVE_LINUX_PERF_EVENT_H=1) |
| +AC_CHECK_HEADER(linux/perf_event.h, |
| + [AC_CACHE_CHECK(for perf_event_open system call,ac_cv_perf_event_open, |
| + [AC_TRY_COMPILE([#include <sys/syscall.h>],[return sizeof(__NR_perf_event_open);], |
| + ac_cv_perf_event_open=yes, |
| + ac_cv_perf_event_open=no)])]) |
| +if test "$ac_cv_perf_event_open" = "yes"; then |
| + HAVE_LINUX_PERF_EVENT_H=1 |
| +else |
| + HAVE_LINUX_PERF_EVENT_H= |
| +fi |
| AC_SUBST(HAVE_LINUX_PERF_EVENT_H) |
| |
| dnl Checks for libraries. |
| |
