build: cleanup meson subdir conditional calls

bind/python/meson.build

@@ -1,3 +1,4 @@
+pythondir = 'python'
 project_pkg_vars += 'pythonpath=' + '${prefix}' / pythondir
 
 install_subdir('pyiguana', install_dir: pythondir)

meson.build

@@ -168,19 +168,35 @@ add_project_arguments(
   language: [ 'cpp' ],
 )
 
+# start chameleon
+use_chameleon = get_option('bind_fortran')
+if use_chameleon
+  subdir('src/chameleon')
+endif
+
 # build and install shared libraries
-subdir('src/chameleon')
 subdir('src/iguana/services')
 subdir('src/iguana/algorithms')
-subdir('src/iguana/bindings')
 subdir('src/iguana/tests')
 
-# build bindings
-pythondir = 'python'
+# build and install bindings
+if use_chameleon
+  subdir('src/iguana/bindings')
+endif
 if get_option('bind_python')
   subdir('bind/python')
 endif
 
+# build examples
+if get_option('install_examples')
+  subdir('examples')
+endif
+
+# generate documentation
+if get_option('install_documentation')
+  subdir('doc/gen')
+endif
+
 # generate pkg-config file
 project_pkg_vars_nonempty = []
 foreach var : project_pkg_vars
@@ -196,16 +212,6 @@ pkg.generate(
   variables: project_pkg_vars_nonempty,
 )
 
-# build examples
-if get_option('install_examples')
-  subdir('examples')
-endif
-
-# generate documentation
-if get_option('install_documentation')
-  subdir('doc/gen')
-endif
-
 # install environment setup files
 if get_option('z_install_envfile')
   configure_file(

src/chameleon/meson.build

@@ -1,5 +1,3 @@
-use_chameleon = get_option('bind_fortran')
-
 chameleon_sources = files(
   'chameleon',
   'src' / 'generator.rb',

src/iguana/bindings/meson.build

@@ -1,26 +1,22 @@
-if use_chameleon
+algo_bind_c_sources += [ 'Bindings.cc' ]
+algo_bind_c_headers = [ 'Bindings.h' ]
 
-  algo_bind_c_sources += [ 'Bindings.cc' ]
-  algo_bind_c_headers = [ 'Bindings.h' ]
-
-  # build C bindings
-  if get_option('bind_fortran')
-    algo_bind_c_lib = shared_library(
-      'IguanaBindingsC',
-      algo_bind_c_sources,
-      include_directories: [ project_inc ] + ROOT_dep_inc_dirs,
-      dependencies: project_deps,
-      link_with: [ services_lib, algo_lib ],
-      link_args: ROOT_dep_link_args + ROOT_dep_link_args_for_validators,
-      install: true,
-      build_rpath: ROOT_dep_rpath,
-    )
-    project_libs += algo_bind_c_lib
-  endif
-  install_headers(
-    algo_bind_c_headers,
-    subdir: meson.project_name() / 'bindings',
-    preserve_path: true,
+# build C bindings
+if get_option('bind_fortran')
+  algo_bind_c_lib = shared_library(
+    'IguanaBindingsC',
+    algo_bind_c_sources,
+    include_directories: [ project_inc ] + ROOT_dep_inc_dirs,
+    dependencies: project_deps,
+    link_with: [ services_lib, algo_lib ],
+    link_args: ROOT_dep_link_args + ROOT_dep_link_args_for_validators,
+    install: true,
+    build_rpath: ROOT_dep_rpath,
   )
-
+  project_libs += algo_bind_c_lib
 endif
+install_headers(
+  algo_bind_c_headers,
+  subdir: meson.project_name() / 'bindings',
+  preserve_path: true,
+)