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Add the LAST_ARG_MUST_BE_NULL macro

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The sentinel function attribute is not understood by versions of
the gcc compiler prior to v4.0. At present, for earlier versions
of gcc, the build issues 108 warnings related to the unknown
attribute. In order to suppress the warnings, we conditionally
define the LAST_ARG_MUST_BE_NULL macro to provide the sentinel attribute
for gcc v4.0 and newer.

Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ramsay Jones
2013-07-18 21:02:12 +01:00
committed by Junio C Hamano
parent 8dd0ee823f
commit 9fe3edc47f
5 changed files with 12 additions and 5 deletions
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2
argv-array.h
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@ -15,7 +15,7 @@ void argv_array_init(struct argv_array *);
void argv_array_push(struct argv_array *, const char *);
__attribute__((format (printf,2,3)))
void argv_array_pushf(struct argv_array *, const char *fmt, ...);
__attribute__((sentinel))
LAST_ARG_MUST_BE_NULL
void argv_array_pushl(struct argv_array *, ...);
void argv_array_pop(struct argv_array *);
void argv_array_clear(struct argv_array *);