On 02/15/2011 12:58 AM, John McGehee wrote:
> I have a custom command that depends on a custom target. In the example
> below, it is as if
> ADD_CUSTOM_COMMAND(... DEPENDS t ...)
> has no effect:
>
> # CMakeLists.txt:
> CMAKE_MINIMUM_REQUIRED(VERSION 2.8 FATAL_ERROR)
> PROJECT(CUSTOMDEPENDS NONE)
> ADD_CUSTOM_TARGET(t
> ${CMAKE_COMMAND} -E echo "Building target t"
> VERBATIM)
> ADD_CUSTOM_COMMAND(OUTPUT stamp
> COMMAND ${CMAKE_COMMAND} -E touch stamp
> DEPENDS t
> VERBATIM)
> ADD_CUSTOM_TARGET(main ALL
> ${CMAKE_COMMAND} -E echo "Building target main"
> DEPENDS stamp
> VERBATIM)
>
> # Fedora 11 with CMake 2.8 generating GNU make
>> make
> Scanning dependencies of target t
> Building target t
> [ 0%] Built target t
> Scanning dependencies of target main
> make[2]: *** No rule to make target `t', needed by `stamp'. Stop.
> make[1]: *** [CMakeFiles/main.dir/all] Error 2
> make: *** [all] Error 2
>
> Target t is built, and I can 'make t' myself, so the target is in fact there.
>
>
> My particular situation is that I am,
> 1. Creating a language binding using SWIG
> 2. Compiling the resulting C#
> If you look just beneath the surface, this is the same situation illustrated
> in the above example. SWIG and C# themselves are working fine.
>
> Is there any way to work around this? Shall I enter this as a bug?
>
> This issue was raised earlier as
> http://www.cmake.org/pipermail/cmake/2010-November/040541.html but no
> solution was given. The excellent example is from that earlier message.
This will be fixed in CMake 2.8.4, see [1].
Regards,
Michael
[1] http://www.mail-archive.com/cmake@cmake.org/msg34598.html
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