On Tuesday 07 June 2011, Alexander Neundorf wrote: > On Monday, June 06, 2011 03:44:20 PM Brad King wrote: > > On 06/05/2011 07:14 PM, Eric Noulard wrote: > > >>> 2011/6/4 Alexander Neundorf <neund...@kde.org>: > > >>>> * if so, it will check that for FOO_INCLUDES and FOO_LIBRARIES > > >>>> * create the command line arguments for the compiler from that > > >>>> * print "-I/opt/foo/include" to stdout > > > > [snip] > > > > > cmake-config would be a [portable] script (or even minimalistic > > > binary), which basically call > > > a cmake script (for portability). > > > > This may be technically challenging, especially for the link options. > > CMake's link line generation happens at generation time and is not > > accessible to the CMake language. Furthermore, it depends on a lot > > of information about the final library or executable because it is > > an expert system [1] (e.g. implicit language runtime libraries for > > mixed executables, transitive dependencies, etc.). > > I have it basically working here now, including a cmake.m4 macro so you can > do CMAKE_CHECK_MODULE() in configure.in. > > Checking whether a package has been found is straightforward. > > For creating the compile flags I'm using > localGen->GetIncludeFlags(language.c_str(), false); > > For the linking I currently get the FOO_LIBRARIES variables, create an > empty executable target, set the LINKER_LANGUAGE to what the user wants, > add all the libraries to the executable and then call > localGen->GetTargetFlags() > > This is what I get currently, the stuff for libxml2 is from cmake via > FindLibXml2.cmake (with an additional libbar.so): > > ~/src/tests/pkgconfig/pkgconfig> ./configure > checking for pkg-config... /usr/bin/pkg-config > checking pkg-config is at least version 0.9.0... yes > checking for QtSQL... yes > Result: CFLAGS: -DQT_SHARED -I/usr/include/QtSql -I/usr/include/QtCore > LIBS: -lQtSql -lQtCore > checking for QtXML... yes > Result: CFLAGS: -DQT_SHARED -I/usr/include/QtXml -I/usr/include/QtCore > LIBS: -lQtXml -lQtCore > checking for XFT... yes > Result: CFLAGS: -I/usr/include/freetype2 LIBS: -lXft > checking for LIBXML2... LibXml2 found. > LibXml2 found. > yes > Result: CFLAGS: -I/usr/include/libxml2 LIBS: -rdynamic -lxml2 > /opt/bar/lib/libbar.so -Wl,-rpath,/opt/bar/lib -fPIC > configure: creating ./config.status > config.status: creating Makefile
I improved it somewhat, so IMO it is basically working now. There is now a branch UsingCMakeLikePkgConfig on stage. Would be nice if you could have a look. Having this in cmake would make it unnecessary that library developers need to install both a FooConfig.cmake file and a foo.pc file. And it works IMO better than pkg-config :-) My m4-skills are basically non-existant. Alex _______________________________________________ cmake-developers mailing list cmake-developers@cmake.org http://public.kitware.com/cgi-bin/mailman/listinfo/cmake-developers
