build: Bump Meson dependency to 1.4.0

Meson 1.5.1 is available in the fd.o SDK and in Debian testing, so the
glib Meson policy says we can update.  Update the minimum only as far as
1.4.0 because we don't yet have a need for 1.5.0.

This allows us to:

- Use file.full_path() to avoid deprecation warnings on str.format(file).
- Set c_std=gnu99,c99 to avoid deprecation warnings with gnu99 on MSVC.

Update all the CI builds to use the latest 1.4.x patch release, 1.4.2.

The FreeBSD runner cannot be updated via `gitlab-ci.yml`, so will be
broken for now.

Similarly, the macOS build will not work unless `-Dc_std=gnu99` is
specified at configure time, due to
https://github.com/mesonbuild/meson/issues/13639.

.gitlab-ci.yml

@@ -11,11 +11,11 @@ cache:
     - _ccache/
 
 variables:
-  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v39.1"
+  FEDORA_IMAGE: "registry.gitlab.gnome.org/gnome/glib/fedora:v39.2"
   COVERITY_IMAGE: "registry.gitlab.gnome.org/gnome/glib/coverity:v7"
-  DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v19"
+  DEBIAN_IMAGE: "registry.gitlab.gnome.org/gnome/glib/debian-stable:v20"
-  ALPINE_IMAGE: "registry.gitlab.gnome.org/gnome/glib/alpine:v3"
+  ALPINE_IMAGE: "registry.gitlab.gnome.org/gnome/glib/alpine:v4"
-  MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v39.1"
+  MINGW_IMAGE: "registry.gitlab.gnome.org/gnome/glib/mingw:v39.2"
   GOBJECT_INTROSPECTION_TAG: "1.80.1"
   MESON_TEST_TIMEOUT_MULTIPLIER: 4
   G_MESSAGES_DEBUG: all
@@ -284,12 +284,7 @@ hurd-i386:
     - hurd
   needs: []
   script:
-    # FIXME: We can’t use ${MESON_COMMON_OPTIONS} here because the Hurd runner
+    - meson setup ${MESON_COMMON_OPTIONS}
-    # has Meson 1.3 installed. See the comment below about the same problem on
-    # FreeBSD.
-    - meson setup
-            --buildtype debug
-            --wrap-mode=nodownload
             --werror
             --default-library=both
             --prefix=$HOME/glib-installed
@@ -713,7 +708,7 @@ macos-x86_64:
     - ln -s /opt/cmake/CMake.app/Contents/bin/cmake .venv/bin
     - ln -s /opt/ccache/ccache .venv/bin
     - source .venv/bin/activate
-    - pip3 install meson==1.2.3
+    - pip3 install meson==1.4.2
     - pip3 install ninja==1.11.1
   script:
     # FIXME: Use --wrap-mode=default so we download dependencies each time,
@@ -721,8 +716,11 @@ macos-x86_64:
     # already contains the dependencies. See:
     #  - https://gitlab.gnome.org/GNOME/glib/merge_requests/388
     #  - https://gitlab.gnome.org/Infrastructure/Infrastructure/issues/225
+    # FIXME: Override c_std to not be a list, until
+    # https://github.com/mesonbuild/meson/issues/13639 is fixed.
     - meson setup ${MESON_COMMON_OPTIONS}
             --wrap-mode=default
+            -Dc_std=gnu99
             --werror
             _build
     - meson compile -C _build

.gitlab-ci/alpine.Dockerfile

@@ -25,7 +25,7 @@ RUN apk add --no-cache \
 
 ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8 MUSL_LOCPATH=/usr/share/i18n/locales/musl
 
-RUN pip3 install --break-system-packages meson==1.2.3
+RUN pip3 install --break-system-packages meson==1.4.2
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}

.gitlab-ci/debian-stable.Dockerfile

@@ -71,7 +71,7 @@ RUN locale-gen de_DE.UTF-8 \
 
 ENV LANG=C.UTF-8 LANGUAGE=C.UTF-8 LC_ALL=C.UTF-8
 
-RUN pip3 install --break-system-packages meson==1.2.3
+RUN pip3 install --break-system-packages meson==1.4.2
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}

.gitlab-ci/fedora.Dockerfile

@@ -79,7 +79,7 @@ RUN dnf -y update \
     make \
  && dnf clean all
 
-RUN pip3 install meson==1.2.3
+RUN pip3 install meson==1.4.2
 
 COPY install-gitlab-cobertura-tools.sh .
 RUN ./install-gitlab-cobertura-tools.sh

.gitlab-ci/mingw.Dockerfile

@@ -1,4 +1,4 @@
-FROM registry.gitlab.gnome.org/gnome/glib/fedora:v39.1
+FROM registry.gitlab.gnome.org/gnome/glib/fedora:v39.2
 
 USER root
 

.gitlab-ci/test-msvc.bat

@@ -12,7 +12,7 @@ for %%x in (%*) do (
 set args=%args:~1%
 
 :: FIXME: make warnings fatal
-pip3 install --upgrade --user meson==1.2.3 || goto :error
+pip3 install --upgrade --user meson==1.4.2 || goto :error
 meson setup %args% _build || goto :error
 meson compile -C _build || goto :error
 

gio/tests/meson.build

@@ -7,7 +7,7 @@ common_gio_tests_deps = [
 
 test_c_args = [
   '-DG_LOG_DOMAIN="GLib-GIO"',
-  '-DGLIB_MKENUMS="@0@"'.format(glib_mkenums),
+  '-DGLIB_MKENUMS="@0@"'.format(glib_mkenums.full_path()),
   '-DGLIB_COMPILE_SCHEMAS="@0@"'.format(glib_compile_schemas.full_path()),
   '-UG_DISABLE_ASSERT',
 ]

girepository/introspection/meson.build

@@ -242,14 +242,14 @@ gio_gir_args = [
 if host_system == 'windows'
   gio_gir_sources += [ gio_win32_include_headers, win32_sources ]
   foreach h: gio_win32_include_headers
-    gio_gir_args += '--c-include=@0@'.format(h)
+    gio_gir_args += '--c-include=' + h.full_path()
   endforeach
   gio_gir_packages += 'gio-windows-2.0'
   gio_gir_args += '--pkg=gio-windows-2.0'
 else
   gio_gir_sources += [ gio_unix_include_headers, unix_sources ]
   foreach h: gio_unix_include_headers
-    gio_gir_args += '--c-include=@0@'.format(h)
+    gio_gir_args += '--c-include=' + h.full_path()
   endforeach
   gio_gir_packages += 'gio-unix-2.0'
   gio_gir_args += '--pkg=gio-unix-2.0'
@@ -278,7 +278,7 @@ gio_gir = gnome.generate_gir(libgio,
 if host_system == 'windows'
   gio_win32_gir_c_includes = []
   foreach h: gio_win32_include_headers
-    gio_win32_gir_c_includes += '--c-include=@0@'.format(h)
+    gio_win32_gir_c_includes += '--c-include=' + h.full_path()
   endforeach
 
   gio_win32_gir = gnome.generate_gir(libgio,
@@ -308,7 +308,7 @@ if host_system == 'windows'
 else
   gio_unix_gir_c_includes = []
   foreach h: gio_unix_include_headers
-    gio_unix_gir_c_includes += '--c-include=@0@'.format(h)
+    gio_unix_gir_c_includes += '--c-include=' + h.full_path()
   endforeach
 
   gio_unix_gir = gnome.generate_gir(libgio,

meson.build

@@ -1,11 +1,11 @@
 project('glib', 'c',
   version : '2.83.0',
   # NOTE: See the policy in docs/meson-version.md before changing the Meson dependency
-  meson_version : '>= 1.2.0',
+  meson_version : '>= 1.4.0',
   default_options : [
     'buildtype=debugoptimized',
     'warning_level=3',
-    'c_std=gnu99'
+    'c_std=gnu99,c99'
   ]
 )
 
@@ -222,8 +222,7 @@ if valgrind.found()
       '--num-callers=50',
       '--show-leak-kinds=definite,possible',
       '--show-error-list=yes',
-      '--suppressions=@0@'.format(meson.project_source_root() /
+      '--suppressions=' + valgrind_suppression_file.full_path(),
-        '@0@'.format(valgrind_suppression_file)),
     ],
     env: common_test_env,
     timeout_multiplier: 20,