Am 27.07.2010 20:01, schrieb Alexander Neundorf:
On Tuesday 27 July 2010, Matthias Gwein wrote:
Hello!
I'm using cmake 2.8.2 and I'd like to build a library of libraries and
i have no additional source code.
I tried something like that:
add_library(mylib )
target_link_libraries(mylib lib1 lib2)
But that doesn't work, because add_library needs at least a source file.
Is there any way to get that work, without creating a dummy source file?
AFAIK no.
If you want, you can create that dummy file e.g. with file(WRITE ...), so it
doesn't have to go into version control.
lib1 and lib2 are shared libs, right ?
Alex
No they are static libraries. I recognized that i have the same problem
with add_executable, there is also at least one source file necessary
and i don't like to make dummy files for nothing.
But maybe the configuration of my build is unusual for CMake. I've
configured them like in my old Make Projects:
I organize different software modules in subdirectories, so i have e.g.
/modul1/modul1.c
/modul1/CMakelists.txt
/modul2/modul2.c
/modul2/CMakelists.txt
/CMakelists.txt
The CMakelists is in the project root directory and adds the
subdirectories (there are also CMakeLists.txt in the subdirectories)
In the Subdirectories, I make libraries (e.g. add_library(modul1
modul1.c)), and in the root directory i'd like to link all libraries to
a big library or to a executable. I tried to use add_library only with
the library name and too use target_link_libraries to add the libraries
of the su-modules, which didn't work.
I don't like to have source files in the root directory, so i don't have
source files for the commands add_library or add_executable in the root
CMakeLists.txt file.
How is somethiong like that usually done with CMake?
Matthias.
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