electron13: fix ppc64le* builds

srcpkgs/electron13/files/musl-patches/chromium-musl-xxx-ppc64le.patch

@@ -1,3 +1,15 @@
+--- base/allocator/partition_allocator/partition_alloc_config.h	2021-05-25 00:05:31.000000000 +0200
++++ -	2021-05-26 22:23:47.172940826 +0200
+@@ -71,7 +71,8 @@
+ // REF_COUNT_AT_END_OF_ALLOCATION does. In this case the refcount overlaps with
+ // the next pointer shadow for the smallest bucket.
+ #if !(defined(OS_MAC) && defined(ARCH_CPU_ARM64)) && \
+-    !BUILDFLAG(REF_COUNT_AT_END_OF_ALLOCATION)
++    !BUILDFLAG(REF_COUNT_AT_END_OF_ALLOCATION) && \
++    !defined(__powerpc64__)
+ #define PA_HAS_FREELIST_HARDENING
+ #endif
+
 diff --git sandbox/linux/bpf_dsl/seccomp_macros.h sandbox/linux/bpf_dsl/seccomp_macros.h
 index a6aec544e..2a4a7f1bc 100644
 --- sandbox/linux/bpf_dsl/seccomp_macros.h

srcpkgs/electron13/template

@@ -299,6 +299,12 @@ do_configure() {
 	else
 		conf+=('symbol_level=0')
 	fi
+
+        # this does not work on ppc64 yet
+        case "$XBPS_TARGET_MACHINE" in
+                ppc64*) conf+=( "enable_jxl_decoder=false" );;
+        esac
+
 	conf+=(
 		'enable_hangout_services_extension=true'
 		'enable_nacl_nonsfi=false'