diff options
Diffstat (limited to 'src/system.h')
| -rw-r--r-- | src/system.h | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/src/system.h b/src/system.h index cc97f2fec..dcb13bad0 100644 --- a/src/system.h +++ b/src/system.h @@ -594,18 +594,26 @@ emit_bug_reporting_address (void) } /* Use OPT_IDX to decide whether to return either a short option - string "-C", or a long option string derived from LONG_OPTION. + string "-C", or a long option string derived from LONG_OPTIONS. OPT_IDX is -1 if the short option C was used; otherwise it is an index into LONG_OPTIONS, which should have a name preceded by two '-' characters. */ -static char opt_str_storage[3] = {'-', 0, 0}; #define OPT_STR(opt_idx, c, long_options) \ ((opt_idx) < 0 \ - ? (opt_str_storage[1] = c, opt_str_storage) \ + ? short_opt_str (c) \ : LONG_OPT_STR (opt_idx, long_options)) /* Likewise, but assume OPT_IDX is nonnegative. */ #define LONG_OPT_STR(opt_idx, long_options) ((long_options)[opt_idx].name - 2) +/* Given the byte, C, return the string "-C" in static storage. */ +static inline char * +short_opt_str (char c) +{ + static char opt_str_storage[3] = {'-', 0, 0}; + opt_str_storage[1] = c; + return opt_str_storage; +} + /* Define an option string that will be used with OPT_STR or LONG_OPT_STR. */ #define OPT_STR_INIT(name) ("--" name + 2) |