Avoid rebuilding stylesheets with sassc during the build

This avoids sassc/libsassc build deps that we don't want to ship in
RHEL, and also makes sure that we use upstream-shipped stylesheets.

0001-dist-Fix-css-theme-disting-after-HighContrast-dark-c.patch

@@ -0,0 +1,26 @@
+From 1a30ec6da6a38bd283dc48b0bc13a96237fd187c Mon Sep 17 00:00:00 2001
+From: Kalev Lember <klember@redhat.com>
+Date: Tue, 19 Jan 2021 10:46:13 +0100
+Subject: [PATCH] dist: Fix css theme disting after HighContrast-dark changes
+
+Commit f60d245e327a760a188e8b5a40844f5fe092df43 renamed it from
+HighContrast-inverse.css to HighContrast-dark.css.
+---
+ build-aux/meson/dist-theme.py | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/build-aux/meson/dist-theme.py b/build-aux/meson/dist-theme.py
+index 1582057113..b1d5291a2c 100644
+--- a/build-aux/meson/dist-theme.py
++++ b/build-aux/meson/dist-theme.py
+@@ -7,7 +7,7 @@ import subprocess
+ stylesheets = [ 'gtk/theme/Adwaita/Adwaita.css',
+                 'gtk/theme/Adwaita/Adwaita-dark.css',
+                 'gtk/theme/HighContrast/HighContrast.css',
+-                'gtk/theme/HighContrast/HighContrast-inverse.css' ]
++                'gtk/theme/HighContrast/HighContrast-dark.css' ]
+ 
+ sourceroot = os.environ.get('MESON_SOURCE_ROOT')
+ distroot = os.environ.get('MESON_DIST_ROOT')
+-- 
+2.29.2

gtk4.spec

@@ -17,13 +17,19 @@
 
 Name:           gtk4
 Version:        4.0.2
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        GTK graphical user interface library
 
 License:        LGPLv2+
 URL:            https://www.gtk.org
 Source0:        https://download.gnome.org/sources/gtk/4.0/gtk-%{version}.tar.xz
 
+# Generated with patch0
+Source1:        HighContrast-dark.css
+
+# https://gitlab.gnome.org/GNOME/gtk/-/merge_requests/3095
+Patch0:         0001-dist-Fix-css-theme-disting-after-HighContrast-dark-c.patch
+
 BuildRequires:  cups-devel
 BuildRequires:  desktop-file-utils
 BuildRequires:  docbook-style-xsl
@@ -62,7 +68,6 @@ BuildRequires:  pkgconfig(xkbcommon)
 BuildRequires:  pkgconfig(xrandr)
 BuildRequires:  pkgconfig(xrender)
 BuildRequires:  pkgconfig(xrender)
-BuildRequires:  sassc
 BuildRequires:  /usr/bin/xsltproc
 
 # standard icons
@@ -128,6 +133,9 @@ widget toolkit.
 %prep
 %autosetup -p1 -n gtk-%{version}
 
+# Generated with patch0
+cp -a %{SOURCE1} gtk/theme/HighContrast/HighContrast-dark.css
+
 %build
 export CFLAGS='-fno-strict-aliasing %optflags'
 %meson \
@@ -140,6 +148,7 @@ export CFLAGS='-fno-strict-aliasing %optflags'
         -Dmedia-gstreamer=enabled \
         -Dxinerama=enabled \
         -Dcolord=enabled \
+        -Dsassc=disabled \
         -Dgtk_doc=true \
         -Dman-pages=true \
         -Dinstall-tests=false
@@ -232,6 +241,9 @@ desktop-file-validate %{buildroot}%{_datadir}/applications/*.desktop
 %{_datadir}/gtk-doc
 
 %changelog
+* Tue Jan 19 2021 Kalev Lember <klember@redhat.com> - 4.0.2-2
+- Avoid rebuilding stylesheets with sassc during the build
+
 * Tue Jan 19 2021 Kalev Lember <klember@redhat.com> - 4.0.2-1
 - Update to 4.0.2
 

sources

@@ -1 +1,2 @@
 SHA512 (gtk-4.0.2.tar.xz) = ae4d57c857bc07b775f7d906b4106804aa5d78240b0348c886f189a3c32d0fee494ebd1f0fd3301d53a523d6bb7c620150ee6306f44cc7d4f3f4f32fc42f8e49
+SHA512 (HighContrast-dark.css) = 4a90efc556d10f44f68650c901344f9fedec4fa6be6ddfdc252e10c5c23fb142b1c6bac77e1ad36da0a23a9e4b2588313c1f69610f3535930e8501bea3347a1e