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Fix dlvsym() detection in the configure script.

--ryan.


From: Mike Frysinger <vapier@gentoo.org>
To: sdl@libsdl.org
Subject: Re: [SDL] sdl, sdl-mixer not compiling with uclibc
Date: Wed, 7 Sep 2005 19:17:49 -0400

in this case actually, the error is in libsdl

the configure check for dlvsym presence is pretty pointless, it currently
always detects it

		AC_TRY_COMPILE([
		  #include <stdio.h>
		  #define __USE_GNU
		  #include <dlfcn.h>
		],[
		  dlvsym(NULL,"","");
		],[
		use_dlvsym=yes
		])

since it's merely compiling, the warning about dlvsym being implicitly
declared doesnt trigger a failure

find attached a patch to fix this
-mike
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icculus committed Sep 8, 2005
1 parent 671d6f3 commit 6f8843db880ed0dac01e38750f8fe7b3380e9c95
Showing with 1 addition and 11 deletions.
  1. +1 −11 configure.in
@@ -313,18 +313,8 @@ CheckALSA()
CFLAGS="$CFLAGS -DALSA_SUPPORT -DALSA_DYNAMIC=\$(alsa_lib) $ALSA_CFLAGS"
AC_SUBST(alsa_lib)

AC_MSG_CHECKING(for dlvsym)
use_dlvsym=no
AC_TRY_COMPILE([
#include <stdio.h>
#define __USE_GNU
#include <dlfcn.h>
],[
dlvsym(NULL,"","");
],[
use_dlvsym=yes
])
AC_MSG_RESULT($use_dlvsym);
AC_CHECK_LIB(dl, dlvsym, [use_dlvsym=yes])
if test x$use_dlvsym = xyes; then
CFLAGS="$CFLAGS -DUSE_DLVSYM"
fi

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