commit 3e306f6bf40c4ade5e1c216fcc8043006d7dbcee
author bungeman <bungeman@google.com> Wed Mar 29 11:32:02 2017 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Wed Mar 29 18:16:22 2017 +0000
tree e81d5ddebf8118f10c71c3edb3a670e19d2200f5
parent 301431d7516a18e2b4232ccb70d2a79e8192c748

Use FontWeight symbols when available on Mac.

Newer versions of macOS have NSFontWeightXXX symbols and iOS has
UIFontWeightXXX symbols to provide the conversion between [-1, 1]
CTFontDescriptor weights and [0, 1000] CSS weights. Currently the
values these symbols provide are hard coded (for expediency), but the
symbols should be used when available since the values may change
without notice.

Change-Id: I0875c6a96c5b14e456f91bccf7a84f0306a3d63a
Reviewed-on: https://skia-review.googlesource.com/10163
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Ben Wagner <bungeman@google.com>

BUILD.gn

diff --git a/BUILD.gn b/BUILD.gn
index af6bbda..3364148 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -700,6 +700,8 @@
       "src/ports/SkImageGeneratorCG.cpp",
     ]
     libs += [
+      # AppKit symbols NSFontWeightXXX may be dlsym'ed.
+      "AppKit.framework",
       "ApplicationServices.framework",
       "OpenGL.framework",
     ]
@@ -718,6 +720,9 @@
       "CoreText.framework",
       "ImageIO.framework",
       "MobileCoreServices.framework",
+
+      # UIKit symbols UIFontWeightXXX may be dlsym'ed.
+      "UIKit.framework",
     ]
   }