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Handle multiple -O options

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the last one wins, i.e. "-O2 -O0" does _not_ set __OPTIMIZ__.
This commit is contained in:
Michael Matz 2016-10-17 20:50:54 +02:00
parent a158260e84
commit 7ae35bf1bb
1 changed files with 5 additions and 3 deletions
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8
libtcc.c
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@ -1657,6 +1657,7 @@ PUB_FUNC int tcc_parse_args(TCCState *s, int argc, char **argv)
int optind = 0;
int run = 0;
int x;
int last_o = -1;
CString linker_arg; /* collect -Wl options */
char buf[1024];
@ -1887,9 +1888,7 @@ reparse:
tcc_warning("unsupported language '%s'", optarg);
break;
case TCC_OPTION_O:
x = atoi(optarg);
if (x > 0)
tcc_define_symbol(s, "__OPTIMIZE__", NULL);
last_o = atoi(optarg);
break;
case TCC_OPTION_mms_bitfields:
s->ms_bitfields = 1;
@ -1908,6 +1907,9 @@ unsupported_option:
}
}
if (last_o > 0)
tcc_define_symbol(s, "__OPTIMIZE__", NULL);
if (linker_arg.size) {
r = linker_arg.data;
goto arg_err;