Source: exim4 Severity: wishlist Tags: patch I think this should be a pretty good idea:
1. Add -fvisibility=hidden to CFLAGS, e.g. right after where LFLAGS is set
to -rdynamic.
LFLAGS=-rdynamic
CFLAGS += -fvisibility=hidden
1a. Change LFLAGS to LDFLAGS above, i.e.
LDFLAGS += -rdynamic
CFLAGS += -fvisibility=hidden
$(LDFLAGS) is only applied to the main exim binary, not the utilities.
2. Add the following hunk:
--- exim4-4.66/build-tree/src/local_scan.h 2007-03-05 19:46:40.853429411
+0100
+++ exim4-4.66/build-tree/src/local_scan.h 2007-03-05 19:46:42.673669439
+0100
@@ -18,6 +18,7 @@
settings, and the store functions. */
#include <sys/types.h>
+#pragma GCC visibility push(default)
#include "config.h"
#include "mytypes.h"
#include "store.h"
@@ -188,4 +189,6 @@
extern uschar *string_copyn(uschar *, int);
extern uschar *string_sprintf(char *, ...);
+#pragma GCC visibility pop
+
/* End of local_scan.h */
The result should be that only those symbols declared in local_scan.h and its
included files are included in the dynamic symbol table.
--
Magnus Holmgren [EMAIL PROTECTED]
(No Cc of list mail needed, thanks)
"Exim is better at being younger, whereas sendmail is better for
Scrabble (50 point bonus for clearing your rack)" -- Dave Evans
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