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| author | David Herrmann <dh.herrmann@gmail.com> | 2015-02-24 15:59:06 +0100 |
|---|---|---|
| committer | David Herrmann <dh.herrmann@gmail.com> | 2015-02-24 16:02:32 +0100 |
| commit | 0a98d66159e474915afd6597d3aa444a698fdd2d (patch) | |
| tree | 7680900b9432abee4407f583b6362d4b86dff62e | |
| parent | a804d849b3c2199bc25d1d4e65fc119fa4d7d0e2 (diff) | |
build: add -Wno-format-signedness
gcc5 introduced this option (gcc4 silently ignores it, which is fine).
Given that gcc5 thinks 'unsigned char'/'unsigned short' is promoted to
'int' for var-args, stuff like this spits out warnings:
uint8_t x;
printf("%" PRIu8", x);
gcc5 promots 'x' to 'int', instead of 'unsigned int' and thus gets a
signedness-warnings as it expects an 'unsigned int'.
glibc states otherwise: unsigneds are always promoted to 'unsigned int'.
Until gcc and glibc figure this out, lets just ignore that warning (which
is totally useless in its current form).
| -rw-r--r-- | configure.ac | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 9a2235bcf3..22a6f17811 100644 --- a/configure.ac +++ b/configure.ac @@ -186,6 +186,7 @@ CC_CHECK_FLAGS_APPEND([with_cflags], [CFLAGS], [\ -Wno-unused-parameter \ -Wno-missing-field-initializers \ -Wno-unused-result \ + -Wno-format-signedness \ -Werror=overflow \ -Wdate-time \ -Wnested-externs \ |