Add missing newlines at EOF (for clang++).

[oota-llvm.git] / autoconf / m4 / header_mmap_anonymous.m4

diff --git a/autoconf/m4/header_mmap_anonymous.m4 b/autoconf/m4/header_mmap_anonymous.m4
index 409189b0ee0139a84f3987887aeb1dffd634151a..2270d29557b68a343729c58aa40efa85a513bf4f 100644 (file)
--- a/autoconf/m4/header_mmap_anonymous.m4
+++ b/autoconf/m4/header_mmap_anonymous.m4
@@ -5,18 +5,17 @@
 AC_DEFUN([AC_HEADER_MMAP_ANONYMOUS],
 [AC_CACHE_CHECK(for MAP_ANONYMOUS vs. MAP_ANON,
 ac_cv_header_mmap_anon,
-[AC_LANG_SAVE
-  AC_LANG_C
-  AC_TRY_COMPILE([#include <sys/mman.h>
-  #include <unistd.h>
-  #include <fcntl.h>],
-  [mmap (0, 1, PROT_READ, MAP_ANONYMOUS, -1, 0); return (0);],
-  ac_cv_header_mmap_anon=yes, ac_cv_header_mmap_anon=no)
-  AC_LANG_RESTORE
+[ AC_LANG_PUSH([C])
+  AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+    [[#include <sys/mman.h>
+#include <unistd.h>
+#include <fcntl.h>]],
+  [[mmap (0, 1, PROT_READ, MAP_ANONYMOUS, -1, 0); return (0);]])],
+  ac_cv_header_mmap_anon=yes, 
+  ac_cv_header_mmap_anon=no)
+  AC_LANG_POP([C])
 ])
 if test "$ac_cv_header_mmap_anon" = yes; then
-   AC_DEFINE([HAVE_MMAP_ANONYMOUS],[],[Define if mmap() uses MAP_ANONYMOUS to map anonymous pages, or undefine if it uses MAP_ANON])
+   AC_DEFINE([HAVE_MMAP_ANONYMOUS],[1],[Define if mmap() uses MAP_ANONYMOUS to map anonymous pages, or undefine if it uses MAP_ANON])
 fi
 ])
-
-