From Bernhards' tree, thanks to Sven Neuman for noticing. See also
http://gcc.gnu.org/ml/gcc-patches/2008-09/msg01500.html
--- /dev/null
+\\\\ followup of PR34205; trying to use aapcs-linux
+\\ gcc/ChangeLog
+\\
+\\ 2008-09-18 Bernhard Reutner-Fischer <aldot@>
+\\
+\\ * config.gcc (arm*-*-*): Add aapcs-linux to supported ABIs.
+\\
+--- gcc-4.3.2.orig/gcc/config.gcc 2008-09-18 20:33:55.000000000 +0200
++++ gcc-4.3.2/gcc/config.gcc 2008-09-18 21:38:52.000000000 +0200
+@@ -2921,7 +2921,7 @@
+
+ case "$with_abi" in
+ "" \
+- | apcs-gnu | atpcs | aapcs | iwmmxt )
++ | apcs-gnu | atpcs | aapcs | iwmmxt | aapcs-linux )
+ #OK
+ ;;
+ *)