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Diffstat (limited to 'doc/manywarnings.texi')
| -rw-r--r-- | doc/manywarnings.texi | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/doc/manywarnings.texi b/doc/manywarnings.texi index 32237dc67f..ea1b758cc0 100644 --- a/doc/manywarnings.texi +++ b/doc/manywarnings.texi @@ -80,6 +80,13 @@ The @code{-fanalyzer} option generates many false alarms about @code{malloc} leaks, which @code{manywarnings} suppresses by also using @option{-Wno-analyzer-malloc-leak}. +@item -fstrict-flex-arrays +The @code{manywarnings} module by default uses GCC's +@option{-fstrict-flex-arrays} option if available, so that GCC can +warn about nonportable usage of flexible array members. +In a few cases this can help GCC generate better code, +so it is not strictly a warning option. + @item -Wsign-compare GCC and Clang generate too many false alarms with @option{-Wsign-compare}, and we don't recommend that warning. You can disable it by using |