Index: www/firefox/files/patch-gfx_skia_skia_src_core_SkCpu.cpp
===================================================================
--- www/firefox/files/patch-gfx_skia_skia_src_core_SkCpu.cpp	(revision 524229)
+++ www/firefox/files/patch-gfx_skia_skia_src_core_SkCpu.cpp	(working copy)
@@ -4,13 +4,16 @@
         uint32_t hwcaps = getauxval(AT_HWCAP);
                           ^
 
---- gfx/skia/skia/src/core/SkCpu.cpp.orig	2019-02-27 22:18:23 UTC
+--- gfx/skia/skia/src/core/SkCpu.cpp.orig	2020-01-17 22:34:22 UTC
 +++ gfx/skia/skia/src/core/SkCpu.cpp
-@@ -70,6 +70,20 @@
+@@ -72,6 +72,23 @@
          return features;
      }
  
 +#elif defined(SK_CPU_ARM64) && defined(__FreeBSD__)
++#ifndef ID_AA64ISAR0_CRC32_VAL
++#define ID_AA64ISAR0_CRC32_VAL ID_AA64ISAR0_CRC32
++#endif
 +    #include <machine/armreg.h>
 +
 +    static uint32_t read_cpu_features() {
@@ -17,8 +20,8 @@
 +        uint32_t features = 0;
 +        uint64_t id_aa64isar0;
 +
-+        id_aa64isar0 = READ_SPECIALREG(ID_AA64ISAR0_EL1);
-+        if (ID_AA64ISAR0_CRC32(id_aa64isar0) == ID_AA64ISAR0_CRC32_BASE) {
++        id_aa64isar0 = READ_SPECIALREG(id_aa64isar0_el1);
++        if (ID_AA64ISAR0_CRC32_VAL(id_aa64isar0) == ID_AA64ISAR0_CRC32_BASE) {
 +            features |= SkCpu::CRC32;
 +        }
 +        return features;