configure.ac: Set have_compiler based on whether gcc directory exists...

* configure.ac: Set have_compiler based on whether gcc directory
	exists, rather than on whether gcc is in configdirs.
	* configure: Rebuild.

From-SVN: r176800

ChangeLog

@@ -1,3 +1,9 @@
+2011-07-26  Ian Lance Taylor  <iant@google.com>
+
+	* configure.ac: Set have_compiler based on whether gcc directory
+	exists, rather than on whether gcc is in configdirs.
+	* configure: Rebuild.
+
 2011-07-21  Joseph Myers  <joseph@codesourcery.com>
 
 	* MAINTAINERS (Global Reviewers): Add self.

configure

@@ -4992,10 +4992,11 @@ fi
 
 
 # Issue errors and warnings for invalid/strange bootstrap combinations.
-case "$configdirs" in
-  *gcc*) have_compiler=yes ;;
-  *) have_compiler=no ;;
-esac
+if test -r $srcdir/gcc/configure; then
+  have_compiler=yes
+else
+  have_compiler=no
+fi
 
 case "$have_compiler:$host:$target:$enable_bootstrap" in
   *:*:*:no) ;;

configure.ac

@@ -1139,10 +1139,11 @@ AC_ARG_ENABLE([bootstrap],
 enable_bootstrap=default)
 
 # Issue errors and warnings for invalid/strange bootstrap combinations.
-case "$configdirs" in
-  *gcc*) have_compiler=yes ;;
-  *) have_compiler=no ;;
-esac
+if test -r $srcdir/gcc/configure; then
+  have_compiler=yes
+else
+  have_compiler=no
+fi
 
 case "$have_compiler:$host:$target:$enable_bootstrap" in
   *:*:*:no) ;;