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common: New file fwddecl.h.

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* common/util.h (server_control_s, ctrl_t): Move to ...
* common/fwddecl.h: New file.
* common/call-gpg.h: Replace typedef by fwddecl.h.  Change include
protection macro name.
* common/Makefile.am (common_sources): Add fwddecl.h.
--

It seems some compilers do not grok a re-declaration.  Thus we factor
it out into a separate file and use the include protection macro to
protect against re-declaration.

GnuPG-bug-id: 2200
Signed-off-by: Werner Koch <wk@gnupg.org>
This commit is contained in:
Werner Koch 2015-12-21 11:37:21 +01:00
parent af142854a7
commit 98f9e14323
No known key found for this signature in database
GPG key ID: E3FDFF218E45B72B
4 changed files with 45 additions and 13 deletions
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8
common/util.h
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@ -52,6 +52,7 @@
#include "../common/dotlock.h"
#include "../common/utf8conv.h"
#include "../common/dynload.h"
#include "../common/fwddecl.h"
#include "gettime.h"
@ -346,11 +347,4 @@ int _gnupg_isatty (int fd);
#define xtoi_2(p) ((xtoi_1(p) * 16) + xtoi_1((p)+1))
#define xtoi_4(p) ((xtoi_2(p) * 256) + xtoi_2((p)+2))
/*-- Forward declaration of the commonly used server control structure. */
/* (We need it here as it is used by some callback prototypes.) */
struct server_control_s;
typedef struct server_control_s *ctrl_t;
#endif /*GNUPG_COMMON_UTIL_H*/