$OpenBSD: patch-third_party_zlib_BUILD_gn,v 1.9 2018/09/12 19:10:34 robert Exp $

Index: third_party/zlib/BUILD.gn
--- third_party/zlib/BUILD.gn.orig
+++ third_party/zlib/BUILD.gn
@@ -63,7 +63,7 @@ config("zlib_arm_crc32_config") {
     #  - ChromeOS has wrapper scripts that are borking the compiler flags.
     #  - Fuchsia just added a syscall for feature detection.
     # TODO(cavalcantii): crbug.com/810125.
-    if (!is_ios && !is_chromeos && !is_fuchsia) {
+    if (!is_ios && !is_chromeos && !is_fuchsia && !is_openbsd) {
       defines = [ "CRC32_ARMV8_CRC32" ]
       if (is_android) {
         defines += [ "ARMV8_OS_ANDROID" ]
@@ -78,7 +78,7 @@ if (current_cpu == "arm" || current_cpu == "arm64") {
   source_set("zlib_arm_crc32") {
     visibility = [ ":*" ]
 
-    if (!is_ios && !is_chromeos && !is_fuchsia) {
+    if (!is_ios && !is_chromeos && !is_fuchsia && !is_openbsd) {
       include_dirs = [ "." ]
 
       if (is_android) {
@@ -327,7 +327,7 @@ static_library("minizip") {
     ]
   }
 
-  if (is_mac || is_ios || is_android || is_nacl) {
+  if (is_mac || is_ios || is_android || is_nacl || is_openbsd) {
     # Mac, Android and the BSDs don't have fopen64, ftello64, or fseeko64. We
     # use fopen, ftell, and fseek instead on these systems.
     defines = [ "USE_FILE32API" ]
