electron/patches/common/ffmpeg/build_gn.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Ales Pergl <alpergl@microsoft.com>
Date: Mon, 22 Oct 2018 10:45:25 -0700
Subject: build_gn.patch

Chromium's Mac toolchain sets the "install_name" linker parameter only
when "is_component_build" is true, but we want to set even if it's false,
because we are making a dylib which will be distributed inside a bundle.

diff --git a/BUILD.gn b/BUILD.gn
index 494d33fc041c05acc6698e1bfe26cc3f8820bb6b..947deba96107c931582007ce89917f8896923a6f 100755
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -390,6 +390,10 @@ if (is_component_ffmpeg) {
     # So we can append below and assume they're defined.
     ldflags = []
 
+    if (!is_component_build && is_mac) {
+      ldflags += [ "-Wl,-install_name,@rpath/libffmpeg.dylib" ]
+    }
+
     if (is_fuchsia || (is_posix && !is_mac)) {
       # Fixes warnings PIC relocation when building as component.
       ldflags += [