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build: Always use EXTERN_UNLESS_MAIN_MODULE pattern.

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* common/util.h (EXTERN_UNLESS_MAIN_MODULE): Add the definion only
here but now without the Norcroft-C.  Change all other places where it
gets defined.
* common/iobuf.h (iobuf_debug_mode): Declare unconditionally as
extern.
* common/iobuf.c (iobuf_debug_mode): Define it here.
* agent/gpg-agent.c (INCLUDED_BY_MAIN_MODULE): Define here and also in
all main modules of all other programs.

* g10/main.h: Put util.h before the local header files.
--

This change is required for use with gcc/ld's LTO feature which does
not allow common blocks.  Further gcc 10 will make -fno-common the
default and thus this chnage is always needed.  What a pitty.

Co-authored-by: Tomáš Mráz
GnuPG-bug-id: 4831
Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2020-02-10 16:37:34 +01:00
parent 49151255f3
commit 21d9bd8b87
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
28 changed files with 35 additions and 18 deletions
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8
g10/options.h
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@ -30,14 +30,6 @@
#include "../common/session-env.h"
#include "../common/compliance.h"
#ifndef EXTERN_UNLESS_MAIN_MODULE
/* Norcraft can't cope with common symbols */
#if defined (__riscos__) && !defined (INCLUDED_BY_MAIN_MODULE)
#define EXTERN_UNLESS_MAIN_MODULE extern
#else
#define EXTERN_UNLESS_MAIN_MODULE
#endif
#endif
/* Declaration of a keyserver spec type. The definition is found in
../common/keyserver.h. */