diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7a012fabe757..eff9113d34e1 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2006-05-14  Bernhard Fischer  <aldot@gcc.gnu.org>
+
+	PR 27501
+	* mkconfig.sh: Use operator = instead of == for test.
+
 2006-05-13  Nick Clifton  <nickc@redhat.com>
 
 	* dwarf2out.c (dbx_reg_number): Check return value from
diff --git a/gcc/mkconfig.sh b/gcc/mkconfig.sh
index 9ffd200b9cfb..d47667d8c5e8 100644
--- a/gcc/mkconfig.sh
+++ b/gcc/mkconfig.sh
@@ -43,7 +43,7 @@ echo "#define ${header_guard}" >> ${output}T
 
 # A special test to ensure that build-time files don't blindly use
 # config.h.
-if test x"$output" == x"config.h"; then
+if test x"$output" = x"config.h"; then
   echo "#ifdef GENERATOR_FILE" >> ${output}T
   echo "#error config.h is for the host, not build, machine." >> ${output}T
   echo "#endif" >> ${output}T