diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index b855029..74b70e0 100644 --- a/configure.ac +++ b/configure.ac @@ -53,7 +53,16 @@ AC_ARG_ENABLE(futex, AS_HELP_STRING([--enable-futex], [Enable futexes (default: [FUTEX=$enableval], [FUTEX=auto]) if test "x$FUTEX" = "xauto"; then - AC_CHECK_HEADER([linux/futex.h], [FUTEX=yes], [FUTEX=no]) + AC_CHECK_HEADER([linux/futex.h], [FUTEX=yes]) +fi + +if test "x$FUTEX" = "xauto"; then + AC_CHECK_HEADER([sys/umtx.h], [FUTEX=yes], [FUTEX=no], + [#include <errno.h> + #include <sys/types.h>]) + if test "x$FUTEX" = "xyes"; then + AC_DEFINE(HAVE_UMTX, 1, [Use umtx]) + fi fi if test "x$FUTEX" = "xyes"; then |