[PATCH] vorbis.m4 creates a conftest.c program that crashes.
On NetBSD-1.6 on i386, when I used the XIPH_PATH_VORBIS() macro form vorbis.m4,
configure tells me detecting of libvorbis failed. When I look in config.log,
I see that the conftest program that is created crashes with a Segfault.
See http://www.mafr.de/misc/conftest.c for the file along with the used
compiler flags. The crash is somewhere in vorbis_analysis_init().
On Linux, it works without any problems.