1c3af89309
Copy from Archiving/zlib based on submit request 25075 from user msmeissn OBS-URL: https://build.opensuse.org/request/show/25075 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/zlib?expand=0&rev=13
50 lines
1.3 KiB
Diff
50 lines
1.3 KiB
Diff
Only export symbols that should be exported.
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Patch by Mike Frysinger
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http://bugs.gentoo.org/32764
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http://bugs.gentoo.org/149929
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Index: configure
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===================================================================
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--- configure.orig 2009-11-24 17:22:26.143484000 +0100
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+++ configure 2009-11-24 17:22:26.578476000 +0100
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@@ -204,6 +204,20 @@ else
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fi
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cat > $test.c <<EOF
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+int foo __attribute__ ((visibility ("hidden")));
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+int main()
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+{
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+ return 0;
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+}
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+EOF
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+if ($CC -c -fvisibility=hidden $CFLAGS $test.c) 2>/dev/null; then
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+ CFLAGS="$CFLAGS -DHAS_attribute_visibility -fvisibility=hidden"
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+ echo "Checking for attribute(visibility) support... Yes."
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+else
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+ echo "Checking for attribute(visibility) support... No."
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+fi
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+
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+cat > $test.c <<EOF
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#include <stdio.h>
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#include <stdarg.h>
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#include "zconf.h"
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Index: zconf.in.h
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===================================================================
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--- zconf.in.h.orig 2005-05-28 08:40:35.000000000 +0200
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+++ zconf.in.h 2009-11-24 17:22:26.582476000 +0100
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@@ -244,7 +244,11 @@
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#endif
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#ifndef ZEXTERN
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-# define ZEXTERN extern
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+# if defined(ZLIB_INTERNAL) && defined(HAS_attribute_visibility)
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+# define ZEXTERN extern __attribute__ ((visibility("default")))
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+# else
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+# define ZEXTERN extern
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+# endif
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#endif
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#ifndef ZEXPORT
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# define ZEXPORT
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