Only give warnings if the user doesn't have mmap().  This is pretty much
a hack that allows users to fight through a build if they don't have mmap().
When I get into the office, I'll make something better.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@13801 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/configure b/configure
index 65208d0..e2721f1 100755
--- a/configure
+++ b/configure
@@ -21368,9 +21368,8 @@
 
 if test "$ac_cv_func_mmap_fixed_mapped" = "no"
 then
-	{ { echo "$as_me:$LINENO: error: mmap() required but not found" >&5
-echo "$as_me: error: mmap() required but not found" >&2;}
-   { (exit 1); exit 1; }; }
+	{ echo "$as_me:$LINENO: WARNING: mmap() required but not found" >&5
+echo "$as_me: WARNING: mmap() required but not found" >&2;}
 fi
 echo "$as_me:$LINENO: checking for mmap of files" >&5
 echo $ECHO_N "checking for mmap of files... $ECHO_C" >&6
@@ -21460,9 +21459,8 @@
 
 if test "$ac_cv_func_mmap_file" = "no"
 then
-	{ { echo "$as_me:$LINENO: error: mmap() of files required but not found" >&5
-echo "$as_me: error: mmap() of files required but not found" >&2;}
-   { (exit 1); exit 1; }; }
+	{ echo "$as_me:$LINENO: WARNING: mmap() of files required but not found" >&5
+echo "$as_me: WARNING: mmap() of files required but not found" >&2;}
 fi
 echo "$as_me:$LINENO: checking for MAP_ANONYMOUS vs. MAP_ANON" >&5
 echo $ECHO_N "checking for MAP_ANONYMOUS vs. MAP_ANON... $ECHO_C" >&6