[PATCH] PR bootstrap/52623 Disable libquadmath on AIX

[David Edelsohn]

The build process of libquadmath sometimes encounters problems on AIX
due to multilib and LD_LIBRARY_PATH interfering with GCC's own library
dependencies.  Libquadmath is not used on AIX, so this patch adds it
to noconfigdirs.

Thanks, David

        * configure.ac: Add libquadmath to noconfigdirs for AIX.
        * configure: Rebuild.

Index: configure.ac
===================================================================
--- configure.ac        (revision 185711)
+++ configure.ac        (working copy)
@@ -509,6 +509,13 @@
     fi
 fi

+# Disable libquadmath for some systems.
+case "${target}" in
+  powerpc-*-aix* | rs6000-*-aix*)
+    noconfigdirs="$noconfigdirs target-libquadmath"
+    ;;
+esac
+
 # Disable libssp for some systems.
 case "${target}" in
   avr-*-*)