feat: update firefox to 128.0.3-1

- Sync LoongArch patches from AOSC-Tracking/firefox @ aosc/v128.0.3.
- Add a patch for default AMDGPU VA-API enablement.

debian/changelog

@@ -1,3 +1,10 @@
+firefox (128.0.3-1deepin1) unstable; urgency=medium
+
+  * Sync patches from AOSC-Tracking/firefox @ aosc/128.0.3.
+  * Use Clang to fix build on loong64.
+
+ -- Mingcong Bai <[email protected]>  Tue, 30 Jul 2024 16:24:56 +0800
+
 firefox (128.0.3-1) unstable; urgency=medium
 
   * New upstream release.

debian/rules

@@ -89,6 +89,16 @@ export MOZBUILD_STATE_PATH = $(CURDIR)/debian/.mozbuild
 
 LDFLAGS += -Wl,--as-needed
 
+# Note: Load this first for $DEB_BUILD_ARCH.
+include /usr/share/dpkg/architecture.mk
+
+# Note: _STRIP operations needs to be done before including buildflags.mk.
+ifeq ($(DEB_BUILD_ARCH),loong64)
+	# FIXME: -mlsx is not yet available for Clang.
+	export DEB_CFLAGS_MAINT_STRIP = -mlsx
+	export DEB_CXXFLAGS_MAINT_STRIP = -mlsx
+endif
+
 # Disable debug symbols when building on 32-bits machines, because
 # a) the rust compiler can't deal with it in the available address
 # space, and b) the linker can't deal with it in the available address space
@@ -133,10 +143,10 @@ ifneq (,$(filter mips%,$(DEB_HOST_ARCH)))
 endif
 
 ifeq (default,$(origin CC))
-CC := gcc
+CC := clang
 endif
 ifeq (default,$(origin CXX))
-CXX := g++
+CXX := clang++
 endif
 
 ifneq (,$(filter mips mipsel,$(DEB_HOST_ARCH)))