[CMake] CMake command line arguments

[Yuri Timenkov]

Hi,

Try putting set(CMAKE_USER_MAKE_RULES_OVERRIDE MyCompilerFlags) before
project() command.
Then, override variable CMAKE_BUILD_TYPE_INIT (with plain unconditional set
command, without putting into cache) in MyCompilerFlags.cmake file (make
sure you put it into location CMake can reach).

Regards,
Yuri

2011/3/7 Gabriel Petrovay <gabipetrovay at gmail.com>

> This does not work because the "NMake Makefile" generator already sets
> the variable: CMAKE_BUILD_TYPE to "Debug"
>
> So your code will never be executed:
> if(NOT CMAKE_BUILD_TYPE)
>  # it will never get here
>  set(CMAKE_BUILD_TYPE RelWithDebInfo)
> endif(NOT CMAKE_BUILD_TYPE)
>
> And I want to have a default of "Release".
>
>
> Gabriel
>
> On Mon, Mar 7, 2011 at 3:14 AM, 徐亮 <lxu4net at gmail.com> wrote:
> > You can check if the variable has defined. You can see
> > "http://www.cmake.org/cmake/help/cmake-2-8-docs.html#command:if" for
> > detail information.
> >
> > if(NOT CMAKE_BUILD_TYPE)
> >   set(CMAKE_BUILD_TYPE RelWithDebInfo)
> > endif()
> >
> > 2011/3/7 Gabriel Petrovay <gabipetrovay at gmail.com>
> >>
> >> Hi,
> >>
> >> I don't understand how to do that...
> >>
> >> The user who builds does not set any environment and does not provide
> >> any -D arguments. I want CMake to automatically configure variables
> >> like: CMAKE_BUILD_TYPE or CMAKE_INSTALL_PREFIX when the user does not
> >> provide them. So I want *my* default values. But I don't want to set
> >> them when the user provides the *generator* ("NMake Makefiles")
> >> default values.
> >>
> >> The only way I see it is for CMake to tell you what parameters were
> >> there in the command line. Does CMake support this?
> >>
> >> How do you do this with the PATH environment variable?
> >>
> >>
> >> Gabriel
> >>
> >> On Mon, Mar 7, 2011 at 2:41 AM, 徐亮 <lxu4net at gmail.com> wrote:
> >> >> From: Gabriel Petrovay <gabipetrovay at gmail.com>
> >> >> Subject: [CMake] CMake command line arguments
> >> >>
> >> >> Hi,
> >> >>
> >> >> Is there a way to read the arguments that were passed to CMake from
> >> >> inside a CMakeLists.txt file?
> >> >>
> >> >> There is a problem that some generators (like "NMake Makefiles") set
> a
> >> >> default value for certain variables (like CMAKE_BUILD_TYPE=Debug,
> >> >> CMAKE_INSTALL_PREFIX=C:\Program Files\${CMAKE_PROJECT_NAME})
> >> >>
> >> >> >From inside CMake one can not set up a different default value if
> the
> >> >> user does not specify it with a -D option. This is because
> >> >> IF(CMAKE_BUILD_TYPE) will always be true because of the default set
> by
> >> >> the generator ("NMake Makefiles").
> >> >>
> >> >> There was this guy having the same problem:
> >> >> http://www.mail-archive.com/cmake@cmake.org/msg09640.html
> >> >>
> >> >> Any solution how one can solve this? Reading the arguments passed to
> >> >> CMake would be one, but I find no documentation/example/google_result
> >> >> for this.
> >> >>
> >> >>
> >> >> Thanks!
> >> >>
> >> >> --
> >> >> MSc Gabriel Petrovay
> >> >> Mobile: +41(0)787978034
> >> >> www.28msec.com
> >> >>
> >> >
> >> > I use "environment variables" to handle this problem. Such as
> "$ENV{PATH}".
> >> > Liang Xu
> >> >
> >> > _______________________________________________
> >> > Powered by www.kitware.com
> >> >
> >> > Visit other Kitware open-source projects at
> >> > http://www.kitware.com/opensource/opensource.html
> >> >
> >> > Please keep messages on-topic and check the CMake FAQ at:
> >> > http://www.cmake.org/Wiki/CMake_FAQ
> >> >
> >> > Follow this link to subscribe/unsubscribe:
> >> > http://www.cmake.org/mailman/listinfo/cmake
> >> >
> >>
> >>
> >>
> >> --
> >> MSc Gabriel Petrovay
> >> Mobile: +41(0)787978034
> >> www.28msec.com
> >
> >
> >
> > --
> > Liang Xu
> >
>
>
>
> --
> MSc Gabriel Petrovay
> Mobile: +41(0)787978034
> www.28msec.com
> _______________________________________________
> Powered by www.kitware.com
>
> Visit other Kitware open-source projects at
> http://www.kitware.com/opensource/opensource.html
>
> Please keep messages on-topic and check the CMake FAQ at:
> http://www.cmake.org/Wiki/CMake_FAQ
>
> Follow this link to subscribe/unsubscribe:
> http://www.cmake.org/mailman/listinfo/cmake
>
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