File libdiscid-0.2.1-visibility.patch of Package libdiscid

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File libdiscid-0.2.1-visibility.patch of Package libdiscid

Index: include/discid/discid.h
===================================================================
--- include/discid/discid.h.orig	2008-03-13 07:17:20.000000000 +0100
+++ include/discid/discid.h	2009-10-07 17:28:46.797921000 +0200
@@ -24,13 +24,7 @@
 #ifndef MUSICBRAINZ_DISC_ID_H
 #define MUSICBRAINZ_DISC_ID_H
 
-#ifdef WIN32
-#	ifdef libdiscid_EXPORTS
-#		define LIBDISCID_API __declspec(dllexport)
-#	else
-#		define LIBDISCID_API __declspec(dllimport)
-#	endif
-#else
+#ifndef LIBDISCID_API
 #	define LIBDISCID_API
 #endif
 
Index: configure.ac
===================================================================
--- configure.ac.orig	2008-03-13 07:17:22.000000000 +0100
+++ configure.ac	2009-10-07 17:30:29.284843000 +0200
@@ -53,6 +53,45 @@ if test "$GCC" = yes; then
   CFLAGS="$CFLAGS -Wall -O2"
 fi
 
+dnl ************************************************************
+dnl Enable hiding of internal symbols in library to reduce its size and
+dnl speed dynamic linking of applications.  This currently is only supported
+dnl on gcc >= 4.0 and SunPro C.
+dnl
+AC_MSG_CHECKING([whether to enable hidden symbols in the library])
+AC_ARG_ENABLE(hidden-symbols,
+AC_HELP_STRING([--enable-hidden-symbols],[Hide internal symbols in library])
+AC_HELP_STRING([--disable-hidden-symbols],[Leave all symbols with default visibility in library]),
+[ case "$enableval" in
+  no)
+       AC_MSG_RESULT(no)
+       ;;
+  *)
+       AC_MSG_CHECKING([whether $CC supports it])
+       if test "$GCC" = yes ; then
+         if $CC --help --verbose 2>&1 | grep fvisibility= > /dev/null ; then
+           AC_MSG_RESULT(yes)
+           AC_DEFINE(LIBDISCID_API, [__attribute__ ((visibility ("default")))], [to make a symbol visible])
+           CFLAGS="$CFLAGS -fvisibility=hidden"
+         else
+            AC_MSG_RESULT(no)
+          fi
+
+       else
+         dnl Test for SunPro cc
+         if $CC 2>&1 | grep flags >/dev/null && $CC -flags | grep xldscope= >/dev/null ; then
+           AC_MSG_RESULT(yes)
+           AC_DEFINE(LIBDISCID_API, [__global], [to make a symbol visible])
+           CFLAGS="$CFLAGS -xldscope=hidden"
+         else
+           AC_MSG_RESULT(no)
+         fi
+       fi
+       ;;
+  esac ],
+       AC_MSG_RESULT(no)
+)
+
 
 AC_OUTPUT([
   Makefile src/Makefile include/Makefile include/discid/Makefile

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File libdiscid-0.2.1-visibility.patch of Package libdiscid

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