meson: Replace obselete join_paths() with '/' operator

Since meson v0.49.0, join_paths() is equivalent to '/' hence,
drop and replace it with '/' short-hand in meson files.

This commit does not introduce any functional changes.

Signed-off-by: Umang Jain <umang.jain@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>

Documentation/meson.build

@@ -1,7 +1,6 @@
 # SPDX-License-Identifier: CC0-1.0
 
-doc_install_dir = join_paths(get_option('datadir'), 'doc',
+doc_install_dir = get_option('datadir') / 'doc' / 'libcamera-@0@'.format(libcamera_version)
-                             'libcamera-@0@'.format(libcamera_version))
 
 #
 # Doxygen

include/libcamera/ipa/meson.build

@@ -7,7 +7,7 @@ libcamera_ipa_headers = files([
 ])
 
 install_headers(libcamera_ipa_headers,
-                subdir: join_paths(libcamera_include_dir, 'ipa'))
+                subdir: libcamera_include_dir / 'ipa')
 
 libcamera_generated_ipa_headers = []
 

include/libcamera/meson.build

@@ -21,7 +21,7 @@ libcamera_public_headers = files([
     'transform.h',
 ])
 
-include_dir = join_paths(libcamera_include_dir, 'libcamera')
+include_dir = libcamera_include_dir / 'libcamera'
 
 subdir('internal')
 subdir('ipa')
@@ -48,7 +48,7 @@ foreach header : control_source_files
                                      output : header + '.h',
                                      command : [gen_controls, '-o', '@OUTPUT@', '@INPUT@'],
                                      install : true,
-                                     install_dir : join_paths('include', include_dir))
+                                     install_dir : 'include' / include_dir)
 endforeach
 
 libcamera_public_headers += control_headers
@@ -63,7 +63,7 @@ formats_h = custom_target('formats_h',
                           output : 'formats.h',
                           command : [gen_formats, '-o', '@OUTPUT@', '@INPUT@'],
                           install : true,
-                          install_dir : join_paths('include', include_dir))
+                          install_dir : 'include' / include_dir)
 libcamera_public_headers += formats_h
 
 # libcamera.h
@@ -72,7 +72,7 @@ libcamera_h = custom_target('gen-header',
                             output : 'libcamera.h',
                             command : [gen_header, meson.current_source_dir(), '@OUTPUT@'],
                             install : true,
-                            install_dir : join_paths('include', include_dir))
+                            install_dir : 'include' / include_dir)
 
 libcamera_public_headers += libcamera_h
 
@@ -86,4 +86,4 @@ libcamera_version_config.set('LIBCAMERA_VERSION_PATCH', version[2])
 configure_file(input : 'version.h.in',
                output : 'version.h',
                configuration : libcamera_version_config,
-               install_dir : join_paths('include', include_dir))
+               install_dir : 'include' / include_dir)

meson.build

@@ -148,8 +148,7 @@ endif
 # Create a symlink from the build root to the source root. This is used when
 # running libcamera from the build directory to locate resources in the source
 # directory (such as IPA configuration files).
-run_command('ln', '-fsT', meson.source_root(),
+run_command('ln', '-fsT', meson.source_root(), meson.build_root() / 'source')
-            join_paths(meson.build_root(), 'source'))
 
 configure_file(output : 'config.h', configuration : config_h)
 

src/ipa/meson.build

@@ -28,7 +28,7 @@ ipa_names = []
 foreach pipeline : pipelines
     if ipas.contains(pipeline)
         subdir(pipeline)
-        ipa_names += join_paths(ipa_install_dir, ipa_name + '.so')
+        ipa_names += ipa_install_dir / ipa_name + '.so'
     endif
 endforeach
 

src/ipa/raspberrypi/data/meson.build

@@ -10,4 +10,4 @@ conf_files = files([
 ])
 
 install_data(conf_files,
-             install_dir : join_paths(ipa_data_dir, 'raspberrypi'))
+             install_dir : ipa_data_dir / 'raspberrypi')

src/ipa/vimc/data/meson.build

@@ -5,4 +5,4 @@ conf_files = files([
 ])
 
 install_data(conf_files,
-             install_dir : join_paths(ipa_data_dir, 'vimc'))
+             install_dir : ipa_data_dir / 'vimc')

src/libcamera/meson.build

@@ -103,7 +103,7 @@ endforeach
 
 libcamera_sources += control_sources
 
-gen_version = join_paths(meson.source_root(), 'utils', 'gen-version.sh')
+gen_version = meson.source_root() / 'utils' / 'gen-version.sh'
 
 version_cpp = vcs_tag(command : [gen_version, meson.build_root()],
                       input : 'version.cpp.in',

src/libcamera/proxy/worker/meson.build

@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: CC0-1.0
 
-proxy_install_dir = join_paths(get_option('libexecdir'), 'libcamera')
+proxy_install_dir = get_option('libexecdir') / 'libcamera'
 
 # generate {pipeline}_ipa_proxy_worker.cpp
 foreach mojom : ipa_mojoms
@@ -25,4 +25,4 @@ foreach mojom : ipa_mojoms
 endforeach
 
 config_h.set('IPA_PROXY_DIR',
-             '"' + join_paths(get_option('prefix'), proxy_install_dir) + '"')
+             '"' + get_option('prefix') / proxy_install_dir + '"')