Different builddir for files in same source folder

[connectrajeev]

Hi All,

I am new to meson buildtool and learning it these days. I have a specifc requirement where I want to generate two builddir let's say builddir1 & builddir2 from one source folder which contains all C files. So some of the object files should be generated in builddir1 and some should be in builddir2 - I can define source_builddir1 and source_builddir2 seprately and finally I want to generate either a static library or a shared library or an executable (I can define that too in meson.build) from these object files and store it in the builddir1 folder.
I don't think there is any in-built function in the meson which can perfrom like this so I have to write a custom function for this can someone let me know how can I achive this.
All source files are in source_dir

source_dir = subdir/
builddir1 = subdir/dir1
builddir2 = subdir/dir2

source_builddir1 = files('a.c', 'b.c', 'c.c', )
source_builddir2 = files('d.c', 'e.c',)

Thanks,
-Rajeev

[rilian-la-te]

https://gitlab.com/vala-panel-project/vala-panel-appmenu/-/tree/master/subprojects/appmenu-gtk-module/src?ref_type=heads - look here, exactly your goal.

I created 2 subdirs in source just with a meson.build files, and they are build different binaries from one source folder.

[eli-schwartz]

So some of the object files should be generated in builddir1 and some should be in builddir2 - I can define source_builddir1 and source_builddir2 seprately and finally I want to generate either a static library or a shared library or an executable (I can define that too in meson.build) from these object files and store it in the builddir1 folder.

I am not entirely certain what you are trying to do here, but to shed a bit of light on how meson operates:

• there is only one project_build_root, that is where you configure the build in
  • you can configure multiple build profiles by specifying different builddirs to meson setup, for example if you want to build your project using both debug and release toolchains, or do a build with clang and a build with gcc, or build one native version of your project and one version that is compiled using mingw to target Windows
• if you want to put libraries and executables in project_build_root() / 'dir1', you can do that by having dir1/meson.build which defines your executable(). It can use files from any directory as source inputs. Either by specifying them as executable('myprog', '../source_a.c') or by defining, in the top sourcedir's meson.build file, all_sources = files('source_a.c') and reusing that "files" object