Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856).

[thirdparty/gcc.git] / libsanitizer / configure.ac

diff --git a/libsanitizer/configure.ac b/libsanitizer/configure.ac
index 34ba09f42f21cfdf882b3aa22ded18d77bab0345..02c7398fcc62aed47aefe18944ef32f8287bb661 100644 (file)
--- a/libsanitizer/configure.ac
+++ b/libsanitizer/configure.ac
@@ -1,7 +1,6 @@
 #                                               -*- Autoconf -*-
 # Process this file with autoconf to produce a configure script.
 
-AC_PREREQ([2.64])
 AC_INIT(package-unused, version-unused, libsanitizer)
 AC_CONFIG_SRCDIR([include/sanitizer/common_interface_defs.h])
 
@@ -253,12 +252,12 @@ if test "$have_mmap" = "no"; then
   ALLOC_FILE=alloc.lo
 else
   VIEW_FILE=mmapio.lo
-  AC_PREPROC_IFELSE([
+  AC_PREPROC_IFELSE([AC_LANG_SOURCE([
 #include <sys/mman.h>
 #if !defined(MAP_ANONYMOUS) && !defined(MAP_ANON)
   #error no MAP_ANONYMOUS
 #endif
-], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
+])], [ALLOC_FILE=mmap.lo], [ALLOC_FILE=alloc.lo])
 fi
 AC_SUBST(VIEW_FILE)
 AC_SUBST(ALLOC_FILE)