diff options
Diffstat (limited to 'contrib/gcc/doc/invoke.texi')
| -rw-r--r-- | contrib/gcc/doc/invoke.texi | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/contrib/gcc/doc/invoke.texi b/contrib/gcc/doc/invoke.texi index d60d6fc..a56e3ed 100644 --- a/contrib/gcc/doc/invoke.texi +++ b/contrib/gcc/doc/invoke.texi @@ -222,7 +222,7 @@ in the following sections. -Werror-implicit-function-declaration @gol -Wimport -Winline @gol -Wlarger-than-@var{len} -Wlong-long @gol --Wmain -Wmissing-braces -Wmissing-declarations @gol +-Wmain -Wmissing-braces @gol -Wmissing-format-attribute -Wmissing-noreturn @gol -Wmultichar -Wno-format-extra-args -Wno-format-y2k @gol -Wno-import -Wpacked -Wpadded @gol @@ -236,8 +236,8 @@ in the following sections. @item C-only Warning Options @gccoptlist{ --Wbad-function-cast -Wmissing-prototypes -Wnested-externs @gol --Wstrict-prototypes -Wtraditional} +-Wbad-function-cast -Wmissing-declarations -Wmissing-prototypes @gol +-Wnested-externs -Wstrict-prototypes -Wtraditional} @item Debugging Options @xref{Debugging Options,,Options for Debugging Your Program or GCC}. @@ -4246,15 +4246,13 @@ one @option{-I} option, the directories are scanned in left-to-right order; the standard system directories come after. If a standard system include directory, or a directory specified with -@option{-isystem}, is also specified with @option{-I}, it will be -searched only in the position requested by @option{-I}. Also, it will -not be considered a system include directory. If that directory really -does contain system headers, there is a good chance that they will -break. For instance, if GCC's installation procedure edited the headers -in @file{/usr/include} to fix bugs, @samp{-I/usr/include} will cause the -original, buggy headers to be found instead of the corrected ones. GCC -will issue a warning when a system include directory is hidden in this -way. +@option{-isystem}, is also specified with @option{-I}, the @option{-I} +option will be ignored. The directory will still be searched but as a +system directory at its normal position in the system include chain. +This is to ensure that GCC's procedure to fix buggy system headers and +the ordering for the include_next directive are not inadvertantly changed. +If you really need to change the search order for system directories, +use the @option{-nostdinc} and/or @option{-isystem} options. @item -I- @opindex I- |
