* aclocal.m4 (libiberty_AC_FUNC_STRNCMP): Use anon mmap as 2nd try.

[pf3gnuchains/gcc-fork.git] / libiberty / configure

diff --git a/libiberty/configure b/libiberty/configure
index 9291f52..8ddd98d 100755 (executable)
--- a/libiberty/configure
+++ b/libiberty/configure
@@ -3151,6 +3151,9 @@ main ()
   p = (char *) mmap (0, MAP_LEN, PROT_READ|PROT_WRITE,
                     MAP_ANON|MAP_PRIVATE, dev_zero, 0);
   if (p == (char *)-1)
+    p = (char *) mmap (0, MAP_LEN, PROT_READ|PROT_WRITE,
+                      MAP_ANON|MAP_PRIVATE, -1, 0);
+  if (p == (char *)-1)
     exit (2);
   else
     {
@@ -3167,7 +3170,7 @@ main ()
 }
 
 EOF
-if { (eval echo configure:3171: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:3174: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_func_strncmp_works=yes
 else