On Saturday 16 January 2010, Michael Roth wrote:
> Hello,
>
> I'm a cmake newbie and have three questions:
>
> a.) What is the best way to set a default build type? Currently I
> do something like this:
>
> if (NOT CMAKE_BUILD_TYPE)
> message(STATUS "No build type selected, default to Release")
> set(CMAKE_BUILD_TYPE "Release")
> endif()
Looks ok.
> b.) When writing find_package-modules, what are the standard variable
> names? Plural or singular?
>
> FOOBAR_INCLUDE_DIR
> FOOBAR_LIBRARY
>
> or
>
> FOOBAR_INCLUDE_DIRS
> FOOBAR_LIBRARIES
>
> Some docs and specific modules are inconsistent with one another.
See the readme.txt in the Modules/ directory.
The variables for the individual files should be singular (i.e. the variables
in the find_xxx() commands), the variables which should be used should be
plural (since e.g. you may need to link to several libraries when you want to
use foo).
> c.) I have written:
>
> if (CMAKE_COMPILER_IS_GNUCC)
> message(STATUS "Gnu-Compiler detected, setting custom flags")
> set(CMAKE_C_FLAGS_DEBUG "-O2 -Wall -g")
> set(CMAKE_C_FLAGS_RELEASE "-O2 -Wall -fomit-frame-pointer
> -DNDEBUG")
> set(CMAKE_C_FLAGS_RELWITHDEBINFO "${CMAKE_C_FLAGS_RELEASE} -g")
> endif()
>
>
> But when I add flags to CMAKE_C_FLAGS they are prepended to the other
> three variants. Is this intended? Why?
CMAKE_C_FLAGS is used for all buildtypes, the three variables above are used
only for the specific buildtype.
Alex
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