[vorbis-dev] compiling ogg vorbis under Mac OS X

[rinnan at mac.com]

Hello, I hope this is the right place to check...

I am having trouble compiling the new rc3 under Mac OS X (10.1.2 I 
believe with the latest (december) development tools installed)

It seems that there are four things to be compiled and installed, libao, 
libogg, libvorbis, and vorbis-tools.

libogg and libvorbis compiled and installed just fine, the other two did 
not.  The "./configure" for vorbis-tools died with an error which makes 
me believe that it didn't work because of a dependency on libao.  libao 
"./configure"'ed just fine, but didn't compile, with an error... (last 
few lines clipped):

-----------------------------------------------

Making all in macosx
make[3]: Nothing to be done for `all'.
make[3]: Nothing to be done for `all-am'.
/bin/sh ../libtool --mode=compile cc -DPACKAGE=\"libao\" 
-DVERSION=\"0.8.2\" -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4  -I. 
-I.  -I../include/ao -I../include 
-DAO_PLUGIN_PATH=\"/usr/local/lib/ao/plugins-2\"    -O20 
-D__NO_MATH_INLINES -fsigned-char 
-I/System/Library/Frameworks/Carbon.framework/Versions/A/Headers -g -O2 
-c audio_out.c
cc -DPACKAGE=\"libao\" -DVERSION=\"0.8.2\" -DSIZEOF_SHORT=2 
-DSIZEOF_INT=4 -DSIZEOF_LONG=4 -I. -I. -I../include/ao -I../include 
-DAO_PLUGIN_PATH=\"/usr/local/lib/ao/plugins-2\" -O20 
-D__NO_MATH_INLINES -fsigned-char 
-I/System/Library/Frameworks/Carbon.framework/Versions/A/Headers -g -O2 
-c audio_out.c   -fno-common -DPIC -o audio_out.lo
cc: unrecognized option `-O20'
audio_out.c:30: header file 'dlfcn.h' not found
cpp-precomp: warning: errors during smart preprocessing, retrying in 
basic mode
make[2]: *** [audio_out.lo] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all-recursive] Error 1

----------------------------------------------------------------

Where is the "dlfcn.h" file?  What does that header do?

Erik

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