+From FLAC:
+XMMS feature detection macros.
+
+ xmms.m4
+
+
+From ao:
+Directory expansion macro for Automake.
+
+ as-ac-expand.m4
+
+
+From tinyproxy:
+Autostars m4 macro for detection of compiler flags.
+
+ as-compiler-flags.m4
+
+
+From morituri:
+Autostars m4 macro for versioning.
+
+ as-version.m4
+
+
+From liboil:
+Check if unaligned memory access works correctly.
+
+ as-unaligned-access.m4
+
+