bug#41174: [PATCH] gnu: webkitgtk: Add patch to share all fonts.

[Leo Prikler <leo.prikler@student.tugraz.at>]

* gnu/packages/patches/webkitgtk-bind-all-fonts.patch: New file.
* gnu/packages/webkit.scm (webkitgtk)[source]<patches>: Use it here.
* gnu/local.mk: Add it here.
---
 gnu/local.mk                                  |  1 +
 .../patches/webkitgtk-bind-all-fonts.patch    | 37 +++++++++++++++++++
 gnu/packages/webkit.scm                       |  3 +-
 3 files changed, 40 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/webkitgtk-bind-all-fonts.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index d34e7e6ae5..7a694e551a 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1580,6 +1580,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/warsow-qfusion-fix-bool-return-type.patch	\
   %D%/packages/patches/weasyprint-library-paths.patch		\
   %D%/packages/patches/webkitgtk-share-store.patch		\
+  %D%/packages/patches/webkitgtk-bind-all-fonts.patch		\
   %D%/packages/patches/websocketpp-fix-for-boost-1.70.patch	\
   %D%/packages/patches/wicd-bitrate-none-fix.patch		\
   %D%/packages/patches/wicd-get-selected-profile-fix.patch	\
diff --git a/gnu/packages/patches/webkitgtk-bind-all-fonts.patch b/gnu/packages/patches/webkitgtk-bind-all-fonts.patch
new file mode 100644
index 0000000000..fec0b812f1
--- /dev/null
+++ b/gnu/packages/patches/webkitgtk-bind-all-fonts.patch
@@ -0,0 +1,37 @@
+Add fonts from all XDG_DATA_DIRS, not just XDG_DATA_HOME.
+
+See <http://bugs.gnu.org/41174>.
+Author: Leo Prikler <leo.prikler@student.tugraz.at>
+Index: webkitgtk-2.28.2/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
+===================================================================
+--- webkitgtk-2.28.2.orig/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
++++ webkitgtk-2.28.2/Source/WebKit/UIProcess/Launcher/glib/BubblewrapLauncher.cpp
+@@ -385,8 +385,8 @@ static void bindFonts(Vector<CString>& a
+ {
+     const char* configDir = g_get_user_config_dir();
+     const char* homeDir = g_get_home_dir();
+-    const char* dataDir = g_get_user_data_dir();
+     const char* cacheDir = g_get_user_cache_dir();
++    const char* const * dataDirs = g_get_system_data_dirs();
+
+     // Configs can include custom dirs but then we have to parse them...
+     GUniquePtr<char> fontConfig(g_build_filename(configDir, "fontconfig", nullptr));
+@@ -394,15 +394,17 @@ static void bindFonts(Vector<CString>& a
+     GUniquePtr<char> fontCache(g_build_filename(cacheDir, "fontconfig", nullptr));
+     GUniquePtr<char> fontHomeConfig(g_build_filename(homeDir, ".fonts.conf", nullptr));
+     GUniquePtr<char> fontHomeConfigDir(g_build_filename(configDir, ".fonts.conf.d", nullptr));
+-    GUniquePtr<char> fontData(g_build_filename(dataDir, "fonts", nullptr));
+     GUniquePtr<char> fontHomeData(g_build_filename(homeDir, ".fonts", nullptr));
+     bindIfExists(args, fontConfig.get());
+     bindIfExists(args, fontConfigHome.get());
+     bindIfExists(args, fontCache.get(), BindFlags::ReadWrite);
+     bindIfExists(args, fontHomeConfig.get());
+     bindIfExists(args, fontHomeConfigDir.get());
+-    bindIfExists(args, fontData.get());
+     bindIfExists(args, fontHomeData.get());
++    for (auto dataDir = dataDirs; dataDir != nullptr && *dataDir != nullptr; dataDir++) {
++        GUniquePtr<char> fontDataDir(g_build_filename(*dataDir, "fonts", nullptr));
++        bindIfExists(args, fontDataDir.get());
++    }
+     bindIfExists(args, "/var/cache/fontconfig"); // Used by Debian.
+ }
diff --git a/gnu/packages/webkit.scm b/gnu/packages/webkit.scm
index 90be7d2625..a5c2b3fee2 100644
--- a/gnu/packages/webkit.scm
+++ b/gnu/packages/webkit.scm
@@ -129,7 +129,8 @@ engine that uses Wayland for graphics output.")
               (sha256
                (base32
                 "1g9hik3bprki5s9d7y5288q5irwckbzajr6rnlvjrlnqrwjkblmr"))
-              (patches (search-patches "webkitgtk-share-store.patch"))))
+              (patches (search-patches "webkitgtk-share-store.patch"
+                                       "webkitgtk-bind-all-fonts.patch"))))
     (build-system cmake-build-system)
     (outputs '("out" "doc"))
     (arguments
-- 
2.26.2