From 8bd857fcc710e3bdfb6f477799c4c3d4aa997964 Mon Sep 17 00:00:00 2001
From: William S Fulton <wsf@fultondesigns.co.uk>
Date: Wed, 27 Oct 2004 20:40:41 +0000
Subject: [PATCH] Fix for detecting mono with non-gnu sed (for Solaris)

git-svn-id: https://swig.svn.sourceforge.net/svnroot/swig/trunk/SWIG@6531 626c5289-ae23-0410-ae9c-e8d60b6d4f22
---
 configure.in | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/configure.in b/configure.in
index ae68dcad1..8b494430d 100644
--- a/configure.in
+++ b/configure.in
@@ -1341,15 +1341,18 @@ if test -z "$CSHARPBIN" ; then
       # Check that mcs is the C# compiler and not the Unix mcs utility by examining the output of 'mcs --version'
       # The Mono compiler should emit: Mono C# compiler version a.b.c.d
       csharp_version_raw=`(mcs --version) 2>/dev/null`
-      csharp_version_searched=`(mcs --version | sed -n "/C#\|Mono/p") 2>/dev/null`
+      csharp_version_searched=`(mcs --version | sed -e "/C#/b" -e "/Mono/b" -e d) 2>/dev/null` # return string if contains 'Mono' or 'C#'
       CSHARPCOMPILER="";
       if test -n "$csharp_version_raw" ; then
         if test "$csharp_version_raw" = "$csharp_version_searched" ; then
           CSHARPCOMPILER="mcs"
         fi
       fi
-
-      AC_CHECK_PROGS(CSHARPCILINTERPRETER, mono) # Mono JIT
+      if test "mcs" = "$CSHARPCOMPILER" ; then
+        AC_CHECK_PROGS(CSHARPCILINTERPRETER, mono) # Mono JIT
+      else
+        echo "mcs is not the Mono C# compiler"
+      fi
     else 
       if test "csc" = "$CSHARPCOMPILER"; then
           CSHARPPATHSEPARATOR="\\\\"