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More MinGW C99 printf compliance

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Passing "--std=gun99" is unfortunately not sufficient to make current
MinGW compilers conform with respect to checking printf format strings.
(The C runtime seems not to have problems.)

Fix by using a "gnu_printf" format specifier not "printf".
This commit is contained in:
Redirect 'Slash' NIL
2009-10-17 17:47:52 -07:00
committed by David Brownell
parent c9fbfbd95c
commit 73349dc5ac
3 changed files with 23 additions and 6 deletions
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12
src/helper/log.h
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@@ -28,6 +28,14 @@
#include "command.h"
/* To achieve C99 printf compatibility in MinGW, gnu_printf should */
/* be used for __attribute__((format( ... ))) */
#ifdef IS_MINGW
#define PRINTF_ATTRIBUTE_FORMAT gnu_printf
#else
#define PRINTF_ATTRIBUTE_FORMAT printf
#endif
/* logging priorities
* LOG_LVL_SILENT - turn off all output. In lieu of try + catch this can be used as a
* feeble ersatz.
@@ -52,10 +60,10 @@ enum log_levels
extern void log_printf(enum log_levels level, const char *file, int line,
const char *function, const char *format, ...)
__attribute__ ((format (printf, 5, 6)));
__attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 5, 6)));
extern void log_printf_lf(enum log_levels level, const char *file, int line,
const char *function, const char *format, ...)
__attribute__ ((format (printf, 5, 6)));
__attribute__ ((format (PRINTF_ATTRIBUTE_FORMAT, 5, 6)));
extern int log_register_commands(struct command_context_s *cmd_ctx);
extern int log_init(struct command_context_s *cmd_ctx);
extern int set_log_output(struct command_context_s *cmd_ctx, FILE *output);