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| author | Paul Eggert <eggert@cs.ucla.edu> | 2012-11-20 00:29:04 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2012-11-20 00:29:04 -0800 |
| commit | d7fcbbfe4a6f310814b45ee1a0aa7ccb458f0eb1 (patch) | |
| tree | ecdb12cd03c76bced307fc43bd6ff4e0b49c0d3c /configure.ac | |
| parent | 952580c5fd273ff9d8f095ab8edb6b116d07eb56 (diff) | |
| download | emacs-d7fcbbfe4a6f310814b45ee1a0aa7ccb458f0eb1.tar.gz | |
Omit -Wstrict-overflow as it does not play well with --enable-checking.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/configure.ac b/configure.ac index 2a079cad264..01fe72d1ee6 100644 --- a/configure.ac +++ b/configure.ac @@ -710,6 +710,8 @@ else nw="$nw -Wfloat-equal" # warns about high-quality code nw="$nw -Winline" # OK to ignore 'inline' nw="$nw -Wjump-misses-init" # We sometimes safely jump over init. + nw="$nw -Wstrict-overflow" # OK to optimize assuming that + # signed overflow has undefined behavior nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations @@ -720,7 +722,7 @@ else # The following line should be removable at some point. nw="$nw -Wsuggest-attribute=pure" - AC_MSG_CHECKING([whether to use -Wstack-protector -Wstrict-overflow]) + AC_MSG_CHECKING([whether to use -Wstack-protector]) AC_PREPROC_IFELSE( [AC_LANG_PROGRAM( [[#if (1 <= __LONG_MAX__ >> 31 >> 31 \ @@ -732,8 +734,7 @@ else ]])], [AC_MSG_RESULT(yes)], [AC_MSG_RESULT(no) - nw="$nw -Wstack-protector" - nw="$nw -Wstrict-overflow"]) + nw="$nw -Wstack-protector"]) gl_MANYWARN_ALL_GCC([ws]) gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw]) |