* config/cloog.m4: Use AS_HELP_STRING and fix help formatting.

From-SVN: r166962

ChangeLog

+2010-11-19  Tobias Grosser  <grosser@fim.uni-passau.de>
+
+	* config/cloog.m4: Use AS_HELP_STRING and fix help formatting.
+
 2010-11-19  Ian Lance Taylor  <iant@google.com>
 	    Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 

config/cloog.m4

@@ -38,10 +38,9 @@ AC_DEFUN([CLOOG_INIT_FLAGS],
       [Specify the directory for the installed CLooG library])])
 
   AC_ARG_ENABLE(cloog-backend,
-    [  --enable-cloog-backend[=backend]
-				isl: The cloog.org isl backend
-				ppl-legacy: The legacy ppl backend - default
-				ppl: The cloog.org ppl backend],
+    [AS_HELP_STRING(
+      [--enable-cloog-backend[[=BACKEND]]],
+      [set the CLooG BACKEND used to either isl, ppl or ppl-legacy (default)])],
     [ if   test "x${enableval}" = "xisl"; then
 	cloog_backend=isl
       elif test "x${enableval}" = "xppl"; then

configure

@@ -1455,10 +1455,9 @@ Optional Features:
   --enable-libssp         build libssp directory
   --enable-build-with-cxx build with C++ compiler instead of C compiler
   --disable-ppl-version-check    disable check for PPL version
-  --enable-cloog-backend=backend
-				isl: The cloog.org isl backend
-				ppl-legacy: The legacy ppl backend - default
-				ppl: The cloog.org ppl backend
+  --enable-cloog-backend[=BACKEND]
+                          set the CLooG BACKEND used to either isl, ppl or
+                          ppl-legacy (default)
   --disable-cloog-version-check
                           disable check for CLooG version
   --enable-lto            enable link time optimization support