[gobject-introspection] Revert "Meson: Override gobject-introspection-1.0 dependency"

[Emmanuele Bassi <ebassi src gnome org>]

commit ec08670d80d12668e3e6be4b6eb395e5ad207034
Author: Emmanuele Bassi <ebassi gnome org>
Date:   Fri Apr 24 11:53:19 2020 +0100

    Revert "Meson: Override gobject-introspection-1.0 dependency"
    
    This reverts commit d01a387475e2665275a6cd6b0059bf91121b8300.
    
    The nightly run time does not have Meson 0.54

 .gitlab-ci.yml                   |  4 ++--
 .gitlab-ci/Dockerfile            |  2 +-
 .gitlab-ci/minimal.Dockerfile    |  2 +-
 .gitlab-ci/run-docker-minimal.sh |  2 +-
 .gitlab-ci/run-docker.sh         |  2 +-
 .gitlab-ci/test-msvc.bat         |  2 +-
 .gitlab-ci/test-msys2-meson.sh   |  2 +-
 meson.build                      | 15 +--------------
 8 files changed, 9 insertions(+), 22 deletions(-)
---
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 2b1b9d4d..16a8f3bb 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -2,7 +2,7 @@ stages:
   - build
   - deploy
 
-image: registry.gitlab.gnome.org/gnome/gobject-introspection:v7
+image: registry.gitlab.gnome.org/gnome/gobject-introspection:v6
 
 cache:
   paths:
@@ -36,7 +36,7 @@ fedora-x86_64-meson:
       - public
 
 fedora-x86_64-subprojects:
-  image: registry.gitlab.gnome.org/gnome/gobject-introspection:min-v2
+  image: registry.gitlab.gnome.org/gnome/gobject-introspection:min-v1
   stage: build
   variables:
     CCACHE_BASEDIR: "${CI_PROJECT_DIR}"
diff --git a/.gitlab-ci/Dockerfile b/.gitlab-ci/Dockerfile
index 61c5fe41..0dec6700 100644
--- a/.gitlab-ci/Dockerfile
+++ b/.gitlab-ci/Dockerfile
@@ -48,7 +48,7 @@ RUN dnf -y install \
     zlib-devel \
  && dnf clean all
 
-RUN pip3 install meson==0.54.0
+RUN pip3 install meson==0.50.1
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}
diff --git a/.gitlab-ci/minimal.Dockerfile b/.gitlab-ci/minimal.Dockerfile
index e4d1f821..b33aa64b 100644
--- a/.gitlab-ci/minimal.Dockerfile
+++ b/.gitlab-ci/minimal.Dockerfile
@@ -15,7 +15,7 @@ RUN dnf -y install \
     libmount-devel \
  && dnf clean all
 
-RUN pip3 install meson==0.54.0
+RUN pip3 install meson==0.52.0
 
 ARG HOST_USER_ID=5555
 ENV HOST_USER_ID ${HOST_USER_ID}
diff --git a/.gitlab-ci/run-docker-minimal.sh b/.gitlab-ci/run-docker-minimal.sh
index 9588f288..36b2d376 100755
--- a/.gitlab-ci/run-docker-minimal.sh
+++ b/.gitlab-ci/run-docker-minimal.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-TAG="registry.gitlab.gnome.org/gnome/gobject-introspection:min-v2"
+TAG="registry.gitlab.gnome.org/gnome/gobject-introspection:min-v1"
 
 sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
     --file "minimal.Dockerfile" .
diff --git a/.gitlab-ci/run-docker.sh b/.gitlab-ci/run-docker.sh
index 8e6a04ab..5d29002c 100755
--- a/.gitlab-ci/run-docker.sh
+++ b/.gitlab-ci/run-docker.sh
@@ -2,7 +2,7 @@
 
 set -e
 
-TAG="registry.gitlab.gnome.org/gnome/gobject-introspection:v7"
+TAG="registry.gitlab.gnome.org/gnome/gobject-introspection:v6"
 
 sudo docker build --build-arg HOST_USER_ID="$UID" --tag "${TAG}" \
     --file "Dockerfile" .
diff --git a/.gitlab-ci/test-msvc.bat b/.gitlab-ci/test-msvc.bat
index d8eaa776..a2ee44b2 100644
--- a/.gitlab-ci/test-msvc.bat
+++ b/.gitlab-ci/test-msvc.bat
@@ -9,7 +9,7 @@ py -3 -c "import urllib.request, sys; urllib.request.urlretrieve(*sys.argv[1:])"
 
 SET PATH=%CD%;%CD%\win_flex_bison;%PATH%
 
-pip3 install --upgrade --user meson==0.54.0 || goto :error
+pip3 install --upgrade --user meson==0.50.1 || goto :error
 meson _build || goto :error
 ninja -C _build || goto :error
 
diff --git a/.gitlab-ci/test-msys2-meson.sh b/.gitlab-ci/test-msys2-meson.sh
index 9c607b29..9f145e5b 100644
--- a/.gitlab-ci/test-msys2-meson.sh
+++ b/.gitlab-ci/test-msys2-meson.sh
@@ -31,7 +31,7 @@ pacman --noconfirm -S --needed \
 export CCACHE_BASEDIR="${CI_PROJECT_DIR}"
 export CCACHE_DIR="${CCACHE_BASEDIR}/_ccache"
 
-pip3 install --upgrade --user meson==0.54.0 flake8
+pip3 install --upgrade --user meson==0.50.1 flake8
 export PATH="$HOME/.local/bin:$PATH"
 
 export CFLAGS="-Werror"
diff --git a/meson.build b/meson.build
index f6f62444..3d22dd55 100644
--- a/meson.build
+++ b/meson.build
@@ -1,6 +1,6 @@
 project('gobject-introspection', 'c',
   version: '1.64.1',
-  meson_version: '>= 0.54.0',
+  meson_version: '>= 0.50.1',
   default_options: [
     'warning_level=1',
     'buildtype=debugoptimized',
@@ -264,16 +264,3 @@ configure_file(
   configuration: pkgconfig_conf,
   install_dir: join_paths(get_option('libdir'), 'pkgconfig'),
 )
-
-# Dependency object used by Meson's GNOME module. This dependency variable must
-# be named girepo_dep for backward compatibility with projects that where already
-# using that name as fallback: dependency('gobject-introspection-1.0',
-# fallback : ['gobject-introspection', 'girepo_dep'])
-girepo_dep = declare_dependency(
-  sources: typelibs,
-  dependencies: girepo_dep,
-  variables: {
-    'girdir': meson.current_build_dir() / 'gir',
-  },
-)
-meson.override_dependency('gobject-introspection-1.0', girepo_dep)