diff --git a/gnattools/ChangeLog b/gnattools/ChangeLog
index d47137ef73f..b507326ba7d 100644
--- a/gnattools/ChangeLog
+++ b/gnattools/ChangeLog
@@ -1,3 +1,9 @@
+2010-01-09  Simon Wright  <simon@pushface.org>
+
+	PR ada/42659
+	* configure.ac (powerpc|*86-*-darwin*): Extend to *-*-darwin*.
+	* configure: Regenerate.
+
 2009-08-24  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	* configure.ac (AC_PREREQ): Bump to 2.64.
diff --git a/gnattools/configure b/gnattools/configure
index 08dec3c289e..a85c044056a 100755
--- a/gnattools/configure
+++ b/gnattools/configure
@@ -2103,7 +2103,7 @@ case "${target}" in
     indepsw.adb<indepsw-mingw.adb"
     EXTRA_GNATTOOLS='../../gnatdll$(exeext)'
     ;;
-  powerpc-*-darwin* | *86-*-darwin*)
+  *-*-darwin*)
     TOOLS_TARGET_PAIRS="mlib-tgt-specific.adb<mlib-tgt-specific-darwin.adb"
     ;;
   *-*-lynxos)
diff --git a/gnattools/configure.ac b/gnattools/configure.ac
index 3e9f0c6e981..712ed44063e 100644
--- a/gnattools/configure.ac
+++ b/gnattools/configure.ac
@@ -143,7 +143,7 @@ case "${target}" in
     indepsw.adb<indepsw-mingw.adb"
     EXTRA_GNATTOOLS='../../gnatdll$(exeext)'
     ;;
-  powerpc-*-darwin* | *86-*-darwin*)
+  *-*-darwin*)
     TOOLS_TARGET_PAIRS="mlib-tgt-specific.adb<mlib-tgt-specific-darwin.adb"
     ;;
   *-*-lynxos)