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author | Darren Tucker <dtucker@dtucker.net> | 2020-06-05 13:20:10 +1000 |
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committer | Darren Tucker <dtucker@dtucker.net> | 2020-06-05 13:20:10 +1000 |
commit | 8da801f585dd9c534c0cbe487a3b1648036bf2fb (patch) | |
tree | f513eb25009a0702265299dedf150ac3a887b702 /aclocal.m4 | |
parent | 049297de975b92adcc2db77e3fb7046c0e3c695d (diff) |
Test fallthrough in OSSH_CHECK_CFLAG_COMPILE.
clang 10's -Wimplicit-fallthrough does not understand /* FALLTHROUGH */
comments and we don't use the __attribute__((fallthrough)) that it's
looking for. This has the effect of turning off -Wimplicit-fallthrough
where it does not currently help (particularly with -Werror). ok djm@
Diffstat (limited to 'aclocal.m4')
-rw-r--r-- | aclocal.m4 | 10 |
1 files changed, 10 insertions, 0 deletions
@@ -21,6 +21,16 @@ int main(int argc, char **argv) { double m = l / 0.5; long long int n = argc * 12345LL, o = 12345LL * (long long int)argc; printf("%d %d %d %f %f %lld %lld\n", i, j, k, l, m, n, o); + /* + * Test fallthrough behaviour. clang 10's -Wimplicit-fallthrough does + * not understand comments and we don't use the "fallthrough" attribute + * that it's looking for. + */ + switch(i){ + case 0: j += i; + /* FALLTHROUGH */ + default: j += k; + } exit(0); } ]])], |