build: robustify linux/fcntl.h check

* configure.ac (AC_CHECK_TYPES): Support older linux kernel headers
by including <sys/types.h> before <linux/fcntl.h>.

diff --git a/configure.ac b/configure.ac
index 0933733e4e09091cdd1ed6aca1ac589dfa5a2ac1..b971b29e3708915c07cc5adff89cc78441c99348 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -341,7 +341,8 @@ AC_CHECK_MEMBERS([struct sigevent._sigev_un._pad,
 AC_CHECK_TYPES([struct flock,
                struct flock64,
                struct __kernel_flock,
-               struct __kernel_flock64],,, [#include <linux/fcntl.h>])
+               struct __kernel_flock64],,, [#include <sys/types.h>
+#include <linux/fcntl.h>])
 
 AC_CHECK_TYPES([__kernel_long_t, __kernel_ulong_t],,, [#include <asm/posix_types.h>])