configure: Fix detection of fallocate on old glibc.

[Hans Leidekker]

Fixes http://bugs.winehq.org/show_bug.cgi?id=32369
---
 configure.ac |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index 4c7655a..01d84cd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1976,7 +1976,6 @@ AC_CHECK_FUNCS(\
 	chsize \
 	dlopen \
 	epoll_create \
-	fallocate \
 	ffs \
 	finite \
 	fnmatch \
@@ -2117,6 +2116,15 @@ then
   AC_DEFINE(HAVE_SCHED_SETAFFINITY, 1, [Define to 1 if you have the `sched_setaffinity' function.])
 fi
 
+AC_CACHE_CHECK([for fallocate],wine_cv_have_fallocate,
+                AC_LINK_IFELSE([AC_LANG_PROGRAM(
+[[#define _GNU_SOURCE
+#include <fcntl.h>]], [[fallocate(-1, 0, 0, 0);]])],[wine_cv_have_fallocate=yes],[wine_cv_have_fallocate=no]))
+if test "$wine_cv_have_fallocate" = "yes"
+then
+  AC_DEFINE(HAVE_FALLOCATE, 1, [Define to 1 if you have the `fallocate' function.])
+fi
+
 dnl **** Check for types ****
 
 AC_C_INLINE
-- 
1.7.10.4