search for: check_path_ogg

...e(ogg.m4) for example, aclocal won't be able to find AM_PATH_OGG because it doesn't understand sinclude, and it will generate an error because it thinks that some internal automake macro was not found. The solution is to change the DEFUN name for these two m4 macros. Perhaps CHECK_PATH_AO, CHECK_PATH_OGG, and CHECK_PATH_VORBIS. Anything, as long as it doesn't start with "AM_", Sidenote: So the various vorbis-tools are currently ok because they copied the entirety of ao.m4, ogg.m4, and vorbis.m4 into acinclude.m4, but packages outside of the ogg/vorbis CVS tree may want to keep the ....