meson: prepare general build for the bindings

for bindings we needed a system that could be used to find all special
directories of every subsystem, for eo files headers etc.
The mechanism is documented in the root meson.build

Differential Revision: https://phab.enlightenment.org/D7180

meson.build

@@ -58,6 +58,7 @@ dir_lib       = join_paths(dir_prefix, get_option('libdir'))
 
 #local paths
 local_lib = join_paths('src', 'lib')
+local_bindings = join_paths('src', 'bindings')
 local_bin = join_paths('src', 'bin')
 local_module = join_paths('src', 'modules')
 local_tests = join_paths('src', 'tests')
@@ -65,18 +66,15 @@ local_benchmark = join_paths('src', 'benchmarks')
 local_examples = join_paths('src', 'examples')
 local_scripts = join_paths('src', 'scripts')
 
-add_global_arguments('-DHAVE_CONFIG_H=1', language: 'c')
-add_global_arguments('-D_GNU_SOURCE=1', language: 'c')
-add_global_arguments('-fPIC', language: 'c')
-
-add_global_arguments('-DEFL_EO_API_SUPPORT=1', language: 'c')
-add_global_arguments('-DEFL_BETA_API_SUPPORT=1', language: 'c')
-add_global_arguments('-DNEED_RUN_IN_TREE=1', language: 'c')
-add_global_arguments('-DEFL_BUILD=1', language: 'c')
-add_global_arguments('-DEFL_BUILD=1', language: 'objc')
-add_global_arguments('-DEFL_EO_API_SUPPORT=1', language: 'objc')
-add_global_arguments('-DEFL_BETA_API_SUPPORT=1', language: 'objc')
-add_global_arguments('-DELM_INTERNAL_API_ARGESFSDFEFC=1', language: 'c')
+foreach lang : ['c', 'objc', 'cpp']
+  add_global_arguments('-DHAVE_CONFIG_H=1', language: lang)
+  add_global_arguments('-D_GNU_SOURCE=1', language: lang)
+  add_global_arguments('-DEFL_EO_API_SUPPORT=1', language: lang)
+  add_global_arguments('-DEFL_BETA_API_SUPPORT=1', language: lang)
+  add_global_arguments('-DNEED_RUN_IN_TREE=1', language: lang)
+  add_global_arguments('-DEFL_BUILD=1', language: lang)
+  add_global_arguments('-DELM_INTERNAL_API_ARGESFSDFEFC=1', language: lang)
+endforeach
 
 config_h = configuration_data()
 config_h.set_quoted('MODULE_ARCH', version_name)
@@ -97,7 +95,6 @@ config_h.set_quoted('PACKAGE_SYSCONF_DIR', dir_sysconf)
 config_h.set_quoted('BINDIR', dir_bin)
 config_h.set_quoted('DATADIR', dir_data)
 config_h.set10('EFL_HAVE_THREADS', true)
-config_h.set('NEED_RUN_IN_TREE', '1')
 
 config_dir = [include_directories('.')]
 eolian_include_directories = []
@@ -229,7 +226,20 @@ foreach package : subprojects
     dir_package_modules = join_paths(dir_lib, package_name, 'modules')
 
     #ensure that we really dont copy the eo file targets from a previous library
+    #Those are the variables that can be used to reflect the libraries speical handlings
+    # -> at the end is used to indicate where to find this variable outside of this for loop
+
+    #public eo and eot files - which probebly have to be used later for bindings
+    pub_eo_files = []           # -> package_name + '_eo_files'
+    pub_eo_types_files = []     # -> package_name + '_eot_files'
+    #All subdirs where eo files that are listed in the pub_* variables can be found
+    #For every element != '' a variable called package_name + '_' + subir + '_eot_files' and package_name + '_' + subir + '_eo_files' must exist.
+    package_eo_subdirs = ['']     # -> package_name + '_eo_subdirs'
+    #All subdirs that should be included in order to include every requried header
+    package_header_subdirs = [] # -> package_name + '_include_subdirs'
+    #eo file targets, this list of targets can be used to ensure the files are created before accessed
     pub_eo_file_target = []
+    #private eo files target - never use this :)
     priv_eo_file_target = []
 
     foreach static_lib : package[9]
@@ -239,7 +249,11 @@ foreach package : subprojects
     endforeach
 
     if (package[3])
-       subdir(join_paths(local_lib, package_name))
+      subdir(join_paths(local_lib, package_name))
+      set_variable(package_name + '_eo_files', pub_eo_files)
+      set_variable(package_name + '_eot_files', pub_eo_types_files)
+      set_variable(package_name + '_header_subdirs', package_header_subdirs)
+      set_variable(package_name + '_eo_subdirs', package_eo_subdirs)
     endif
     if (package[2])
        subdir(join_paths(local_module, package_name))
@@ -264,10 +278,15 @@ foreach package : subprojects
       tmp_lib = get_variable(package_name+'_lib')
       tmp_deps = get_variable(package_name+'_deps')
       tmp_pub_deps = get_variable(package_name+'_pub_deps')
+      tmp_package_subdirs = []
+
+      foreach subdir : package_header_subdirs
+        tmp_package_subdirs += join_paths(package_version_name, subdir)
+      endforeach
 
       pkgconfig.generate(tmp_lib,
         name : '-'.join(package_name.split('_')),
-        subdirs : package_version_name,
+        subdirs : [package_version_name] + tmp_package_subdirs,
         version : version_major + '.' + version_minor,
         libraries : tmp_pub_deps,
         requires : package[8],
@@ -275,7 +294,7 @@ foreach package : subprojects
       if package_name == 'ethumb_client'
         pkgconfig.generate(tmp_lib,
           name : package_name,
-          subdirs : package_version_name,
+          subdirs : [package_version_name] + tmp_package_subdirs,
           version : version_major + '.' + version_minor,
           libraries : tmp_pub_deps,
           requires : package[8],

src/lib/efl/interfaces/meson.build

@@ -119,6 +119,8 @@ foreach eo_file : pub_eo_files
                            '-gchd', '@INPUT@'])
 endforeach
 
+pub_eo_files += pub_legacy_eo_files
+
 pub_eo_types_files = [
   'efl_gfx_types.eot',
   'efl_ui_types.eot',
@@ -140,7 +142,15 @@ foreach eo_file : pub_eo_types_files
                            '-ghd', '@INPUT@'])
 endforeach
 
-pub_eo_files = files(pub_eo_files + pub_legacy_eo_files + pub_eo_types_files)
+install_data(pub_eo_files + pub_legacy_eo_files + pub_eo_types_files,
+  install_dir: join_paths(eolian_include_dir, package_version_name)
+)
+
+efl_interfaces_eo_files = pub_eo_files
+efl_interfaces_eot_files = pub_eo_types_files
+
+pub_eo_files = []
+pub_eo_types_files = []
 
 efl_src += files([
   'efl_interfaces_main.c',

src/lib/efl/meson.build

@@ -9,6 +9,7 @@ efl_header_src = [
 efl_src = []
 
 subdir('interfaces')
+package_header_subdirs += 'interfaces'
 
 efl_lib = library('efl',
     efl_src, pub_eo_file_target,
@@ -24,10 +25,8 @@ efl = declare_dependency(
   sources : pub_eo_file_target
 )
 
-install_data(pub_eo_files,
-  install_dir: join_paths(eolian_include_dir, package_version_name)
-)
-
 install_headers(efl_header_src,
   install_dir : dir_package_include,
 )
+
+package_eo_subdirs += ['interfaces']

src/lib/evas/canvas/meson.build

@@ -79,6 +79,8 @@ pub_eo_files = [
   'efl_canvas_text.eo'
 ]
 
+evas_canvas_eo_files = pub_eo_files
+
 pub_evas_eo_files += files(pub_eo_files)
 
 foreach eo_file : pub_eo_files
@@ -111,6 +113,8 @@ pub_eo_types_files = [
     'efl_canvas_animation_types.eot'
 ]
 
+evas_canvas_eot_files = pub_eo_types_files
+
 foreach eo_file : pub_eo_types_files
   pub_eo_file_target += custom_target('eolian_gen_' + eo_file,
     input : eo_file,
@@ -217,3 +221,5 @@ evas_include_directories += include_directories('.')
 install_headers('evas_textblock_legacy.h',
   install_dir : join_paths(dir_package_include, 'canvas'),
 )
+
+pub_eo_types_files = []

src/lib/evas/gesture/meson.build

@@ -7,6 +7,8 @@ pub_eo_files = [
   'efl_canvas_gesture_manager.eo'
 ]
 
+evas_gesture_eo_files = pub_eo_files
+
 foreach eo_file : pub_eo_files
   pub_eo_file_target += custom_target('eolian_gen_' + eo_file,
     input : eo_file,
@@ -65,9 +67,11 @@ endforeach
 pub_eo_types_files = [
   'efl_canvas_gesture_types.eot',
 ]
+evas_gesture_eot_files = pub_eo_types_files
 
 pub_evas_eot_files += files(pub_eo_types_files)
 
+
 foreach eo_file : pub_eo_types_files
   pub_eo_file_target += custom_target('eolian_gen_' + eo_file,
     input : eo_file,
@@ -91,3 +95,5 @@ evas_src += files([
   'efl_canvas_gesture_recognizer_long_tap.c',
   'efl_canvas_gesture_manager.c',
 ])
+
+pub_eo_types_files = []

src/lib/evas/meson.build

@@ -187,3 +187,6 @@ install_headers(evas_header_src,
 )
 
 automatic_pkgfile = false
+pub_eo_files = []
+package_eo_subdirs += ['canvas', 'gesture']
+package_header_subdirs += ['canvas', 'gesture']

src/lib/evas_goal/meson.build

@@ -7,9 +7,11 @@ evas_lib = library('evas',
     version : meson.project_version()
 )
 
+evas_pub_deps = [eina, ecore, ector, emile, evas_pre]
+
 evas = declare_dependency(
    link_with : [evas_lib],
-   dependencies : [eina, ecore, ector, emile, evas_pre],
+   dependencies : evas_pub_deps,
    include_directories : evas_include_directories
 )
 
@@ -19,11 +21,16 @@ evas_bin = declare_dependency(
    include_directories : evas_include_directories
 )
 
+tmp_package_subdirs = []
 automatic_pkgfile = false
 
+foreach subdir : evas_header_subdirs
+  tmp_package_subdirs += join_paths('evas-'+version_major, subdir)
+endforeach
+
 pkgconfig.generate(evas_lib,
   name : 'evas',
-  subdirs : 'evas-'+version_major,
+  subdirs : ['evas-'+version_major] + tmp_package_subdirs,
   version : version_major + '.' + version_minor,
   libraries : [eina, ecore, ector, emile, dependency('luajit')],
 )