X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=autoconf%2Fm4%2Fsanity_check.m4;h=639fccca2464058e84c3b14cf9217731b2ce5e3d;hb=09aa3f0ef35d9241c92439d74b8d5e9a81d814c2;hp=5c4d1904fc7d62c4358844209621f457bb50fa49;hpb=a5e26077edb9611a0ea366c9f098a6e080f6da6b;p=oota-llvm.git

diff --git a/autoconf/m4/sanity_check.m4 b/autoconf/m4/sanity_check.m4
index 5c4d1904fc7..639fccca246 100644
--- a/autoconf/m4/sanity_check.m4
+++ b/autoconf/m4/sanity_check.m4
@@ -5,17 +5,26 @@ dnl passes the sanity check.
 dnl   $1 - Name or full path of the program to run
 dnl   $2 - Argument to pass to print out identification string
 dnl   $3 - grep RE to match identification string
+dnl   $4 - set to 1 to make errors only a warning
 AC_DEFUN([CHECK_PROGRAM_SANITY],
 [
 AC_MSG_CHECKING([sanity for program ]$1)
+sanity="0"
 sanity_path=`which $1 2>/dev/null`
 if test "$?" -eq 0 -a -x "$sanity_path" ; then
   sanity=`$1 $2 2>&1 | grep "$3"`
   if test -z "$sanity" ; then
     AC_MSG_RESULT([no])
-    AC_MSG_ERROR([Program ]$1[ failed to pass sanity check.])
+    sanity="0"
+    if test "$4" -eq 1 ; then
+      AC_MSG_WARN([Program ]$1[ failed to pass sanity check.])
+    else
+      AC_MSG_ERROR([Program ]$1[ failed to pass sanity check.])
+    fi
+  else
+    AC_MSG_RESULT([yes])
+    sanity="1"
   fi
-  AC_MSG_RESULT([yes])
 else
   AC_MSG_RESULT([not found])
 fi