Visual Studio builds: Use -utf-8 where available

This avoids compilation erroring out on C4819 (Unicode handling issue in the
Visual Studio compiler), notably when running on Chinese, Japanese and Korean
(CJK) locales.

This also applies -utf-8 into the cflags passed into the various g-ir-scanner
command lines that are used to generate the *.gir files, where -utf-8 is
available, so that we don't get flooded with C4819 warnings during the
build, and therefore avoid potential mishaps, as C4819 is a real warning that
warngs us the code may be incorrectly built.

3 files changed, 14 insertions, 0 deletions

diff --git a/tests/meson.build b/tests/meson.build
index 369abac8..f4c57ed7 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -125,6 +125,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '--library=everything-1.0',
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -151,6 +152,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '--library=gimarshallingtests-1.0',
       '-L' + meson.current_build_dir(),
       '--c-include="tests/gimarshallingtests.h"',
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
diff --git a/tests/offsets/meson.build b/tests/offsets/meson.build
index 6670f21a..71f4c8a4 100644
--- a/tests/offsets/meson.build
+++ b/tests/offsets/meson.build
@@ -35,6 +35,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.source_root(), 'tests'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
diff --git a/tests/scanner/meson.build b/tests/scanner/meson.build
index a82a6135..50ca5a2b 100644
--- a/tests/scanner/meson.build
+++ b/tests/scanner/meson.build
@@ -137,6 +137,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -175,6 +176,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', join_paths(meson.build_root(), 'girepository'),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -212,6 +214,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -247,6 +250,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -284,6 +288,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -322,6 +327,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -359,6 +365,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -387,6 +394,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '--nsversion=1.0',
       '--header-only',
       '--symbol-filter-cmd=' + python_path + ' ' +  join_paths(meson.current_source_dir(), 'symbolfilter.py'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -415,6 +423,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '--nsversion=1.0',
       '--header-only',
       '--identifier-filter-cmd=' + python_path + ' ' +  join_paths(meson.current_source_dir(), 'identfilter.py'),
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -443,6 +452,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '--namespace=Headeronly',
       '--nsversion=1.0',
       '--header-only',
+      extra_giscanner_args,
       '@INPUT@',
     ]
   )
@@ -485,6 +495,7 @@ if glib_dep.type_name() == 'pkgconfig'
       '-L', meson.current_build_dir(),
       '-I', meson.current_source_dir(),
       '-I', join_paths(meson.current_source_dir(), '..'),
+      extra_giscanner_args,
       ] + regress_scanner_cairo_args + [
       '@INPUT@',
     ]