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| author | Rich Felker <dalias@aerifal.cx> | 2012-12-11 23:28:31 -0500 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-12-11 23:28:31 -0500 |
| commit | 2384f27d34c1580dfac73d57d7c2c6b204f1d147 (patch) | |
| tree | af3b671da2fba7947b819a5316004a6fe8064c3d /configure | |
| parent | bcc20d2b94e2c6649597d552b94718197be0674f (diff) | |
| download | musl-2384f27d34c1580dfac73d57d7c2c6b204f1d147.tar.gz musl-2384f27d34c1580dfac73d57d7c2c6b204f1d147.tar.bz2 musl-2384f27d34c1580dfac73d57d7c2c6b204f1d147.tar.xz musl-2384f27d34c1580dfac73d57d7c2c6b204f1d147.zip | |
treat invalid C as an error even if warnings aren't enabled.
Diffstat (limited to 'configure')
| -rwxr-xr-x | configure | 12 |
1 files changed, 11 insertions, 1 deletions
@@ -270,9 +270,19 @@ fnmatch '-march=*|*\ -march=*' "$CFLAGS" || tryldflag CFLAGS_AUTO -march=i486 fnmatch '-mtune=*|*\ -mtune=*' "$CFLAGS" || tryldflag CFLAGS_AUTO -mtune=generic fi +# +# Even with -std=c99, gcc accepts some constructs which are constraint +# violations. We want to treat these as errors regardless of whether +# other purely stylistic warnings are enabled -- especially implicit +# function declarations, which are a dangerous programming error. +# +tryflag CFLAGS_AUTO -Werror=implicit-function-declaration +tryflag CFLAGS_AUTO -Werror=implicit-int +tryflag CFLAGS_AUTO -Werror=pointer-sign +tryflag CFLAGS_AUTO -Werror=pointer-arith + if test "x$warnings" = xyes ; then tryflag CFLAGS_AUTO -Wall -tryflag CFLAGS_AUTO -Wpointer-arith tryflag CFLAGS_AUTO -Wcast-align tryflag CFLAGS_AUTO -Wno-parentheses tryflag CFLAGS_AUTO -Wno-uninitialized |