[gnome-calculator] gclac: no install GIR files if no introspection

[Daniel Espinosa Ortiz <despinosa src gnome org>]

commit 4da8fdcc4396fca1b79a7339fe326662c0809c8b
Author: Daniel Espinosa <esodan gmail com>
Date:   Wed Feb 23 20:10:31 2022 -0600

    gclac: no install GIR files if no introspection
    
    Fix issue #251

 gcalc/meson.build | 9 +++++++--
 gci/meson.build   | 9 +++++++--
 meson.build       | 5 +++++
 3 files changed, 19 insertions(+), 4 deletions(-)
---
diff --git a/gcalc/meson.build b/gcalc/meson.build
index b43581c9..faab6538 100644
--- a/gcalc/meson.build
+++ b/gcalc/meson.build
@@ -171,7 +171,12 @@ libgcalc = library(VERSIONED_PROJECT_NAME,
                meson.current_build_dir() + '/config.h',
        ],
        link_with: [ lib_mpfrg ],
-       install : true,
+       install : [
+               true,
+               true,
+               true,
+               introspection,
+       ],
        install_dir : [
                true,
                join_paths (get_option('includedir'), 'gcalc-@0@'.format (API_VERSION), 'gcalc'),
@@ -179,7 +184,7 @@ libgcalc = library(VERSIONED_PROJECT_NAME,
                true
        ])
 
-if not get_option('disable-introspection') and gobject_introspection.found()
+if introspection
 g_ir_compiler = find_program('g-ir-compiler', required: false)
 if g_ir_compiler.found()
 custom_target('gcalc-typelib',
diff --git a/gci/meson.build b/gci/meson.build
index 5b270d53..24de94bb 100644
--- a/gci/meson.build
+++ b/gci/meson.build
@@ -90,7 +90,12 @@ libgci = library(GCI_VERSIONED_PROJECT_NAME,
                meson.current_build_dir() + '/config.h',
        ],
        link_with: [ libgcalc ],
-       install : true,
+       install : [
+               true,
+               true,
+               true,
+               introspection,
+       ],
        install_dir : [
                true,
                join_paths (get_option('includedir'), 'gci-@0@'.format (API_VERSION), 'gci'),
@@ -98,7 +103,7 @@ libgci = library(GCI_VERSIONED_PROJECT_NAME,
                true
        ])
 
-if not get_option('disable-introspection')
+if introspection
 if g_ir_compiler.found()
 custom_target('gci-typelib',
        command: [
diff --git a/meson.build b/meson.build
index 5975f0f3..00081833 100644
--- a/meson.build
+++ b/meson.build
@@ -39,6 +39,11 @@ libsoup = dependency('libsoup-2.4', version: '>= 2.42')
 gee = dependency('gee-0.8', version: '>= 0.20.0')
 gobject_introspection = dependency('gobject-introspection-1.0', required: false)
 
+introspection = not get_option('disable-introspection')
+if not gobject_introspection.found()
+introspection = false
+endif
+
 # Libraries
 cc = meson.get_compiler('c')
 valac = meson.get_compiler('vala')