1) MAP_FAILED is declared to be a pointer
2) can't include sys/mman.h before sys/types.h without getting an error :-(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8947
91177308-0d34-0410-b5e6-
96231b3b80d8
[AC_LANG_SAVE
AC_LANG_C
AC_TRY_RUN([
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#endif
-
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#endif
+
#ifdef HAVE_FCNTL_H
#include <fcntl.h>
#endif
int fd;
int main () {
- fd = creat ("foo",0777); fd = (int) mmap (0, 1, PROT_READ, MAP_SHARED, fd, 0); unlink ("foo"); return (fd != MAP_FAILED);}],
+ fd = creat ("foo",0777); fd = (int) mmap (0, 1, PROT_READ, MAP_SHARED, fd, 0); unlink ("foo"); return (fd != (int) MAP_FAILED);}],
ac_cv_func_mmap_file=yes, ac_cv_func_mmap_file=no)
AC_LANG_RESTORE
])