On Sunday 24 February 2008 23:22:58 blinkeye wrote:
> >> On 2/24/08, David Sveningsson <[EMAIL PROTECTED]> wrote:
> >>
> >> Hi, I'm quite new with cmake and I can't figure out how to enable
> >> warnings for the generated makefiles/projects. For instance, I would
> >> like to use the -Wall flag with gcc.
>
> like that for example:
>
> set( CMAKE_C_FLAGS "-fstack-protector -fstack-protector-all" )
> set( CMAKE_C_FLAGS_DEBUG "-O2 -Wall -ggdb" )
> set( CMAKE_C_FLAGS_RELEASE "-Os -Wall" )
>
> set( CMAKE_CXX_FLAGS "-fstack-protector -fstack-protector-all" )
> set( CMAKE_CXX_FLAGS_DEBUG "-O2 -Wall -ggdb" )
> set( CMAKE_CXX_FLAGS_RELEASE "-Os -Wall" )
That looks fairly unportable (how do you make sure your compiler supports
those flags? if it doesn't it won't compile at all which is not probably what
you want since you are using cmake I supose you want it portable).
I prefer first to detect supported compiler arguments with
CheckCXXCompilerFlag() and if yes add it to the CFLAGS of targets using
SET_TARGET_PROPERTIES(target PROPERTIES COMPILE_FLAGS ...) (and if one wants
to share several flags among many targets, put the flags in some variables
and expand the variables in the SET_TARGET_PROPERTIES commands).
--
Mihai RUSU Email: [EMAIL PROTECTED]
"Linux is obsolete" -- AST
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