Vorbis dev - Jun 2001 - Patch to get libvorbis 1.0b4 to build on Solaris 2.7

Apps building against libvorbis 1.0b4 will fail to link on Solaris 2.7
because libvorbis uses atanf, sqrtf, etc., which aren't available on
that platform.

In lib/os.h, there are a couple of workarounds (ifdef DARWIN, ifndef GNUC),
but I'm building on Solaris with gcc, so this doesn't help me any. :)

Attached is a patch to configure.in which checks for sqrtf in libm, and
if it finds it, it uses them in os.h; otherwise, it doesn't use them.
This way configure can do the work instead of #ifdeffing os.h for each
platform.

cheers,
Charles

--- configure.in	Sun Feb 25 22:37:58 2001
+++ ../../libvorbis-1.0beta4/configure.in	Wed Jun 27 10:38:19 2001
@@ -152,6 +152,7 @@
 dnl --------------------------------------------------
 
 AC_CHECK_LIB(m, cos, LIBS="-lm", LIBS="")
+AC_CHECK_LIB(m, sqrtf, AC_DEFINE(HAVE_FLOAT_MATH_LIB), )
 AC_CHECK_LIB(pthread, pthread_create, pthread_lib="-lpthread", :)
 
 AM_PATH_OGG(LIBS="$LIBS $OGG_LIBS", AC_MSG_ERROR(must have Ogg
installed!))

--- lib/os.h	Sun Feb 25 22:37:59 2001
+++ ../../libvorbis-1.0beta4/lib/os.h	Wed Jun 27 10:42:30 2001
@@ -38,19 +38,10 @@
 #ifdef _WIN32
 #  include <malloc.h>
 #  define rint(x)   (floor((x)+0.5f)) 
-#  define NO_FLOAT_MATH_LIB
 #  define FAST_HYPOT(a, b) sqrt((a)*(a) + (b)*(b))
 #endif
 
-#ifndef __GNUC__
-#  define NO_FLOAT_MATH_LIB
-#endif
-
-#ifdef DARWIN
-#  define NO_FLOAT_MATH_LIB
-#endif
-
-#ifndef NO_FLOAT_MATH_LIB
+#ifdef HAVE_FLOAT_MATH_LIB
 #  define sqrt sqrtf
 #  define log logf
 #  define exp expf

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On Wed, Jun 27, 2001 at 10:51:58AM -0500, Charles Kerr
wrote:
> Apps building against libvorbis 1.0b4 will fail to link on Solaris 2.7
> because libvorbis uses atanf, sqrtf, etc., which aren't available on
> that platform.
This is fixed in rc1 and has been fixed in CVS from before that; it's
also in bugzilla under 'fixed'.

Monty

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