From 27e25336b8316ff3ec4e464058682ed85801fd06 Mon Sep 17 00:00:00 2001
From: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Date: Mon, 29 Jul 2019 10:54:28 +0000
Subject: [PATCH] Also link against libharfbuzz-subset when use_system_harfbuzz
 is true
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When building HarfBuzz as part of Chromium, there is a single source set
with all the files we need in the build.

Upstream HarfBuzz, on the other hand, produces a few different libraries:
harfbuzz, harfbuzz-icu and harfbuzz-subset.  When |use_system_harfbuzz| is
true, we were only looking for (and using) harfbuzz.pc with pkg-config even
though we also use symbols from libharfbuzz-subset.so. This resulted in
errors when linking:

    ld: obj/skia/skia/SkPDFSubsetFont.o: in function `SkPDFSubsetFont(sk_sp<SkData>, SkPDFGlyphUse const&, SkPDF::Metadata::Subsetter, char const*, int)':
    SkPDFSubsetFont.cpp:(.text._Z15SkPDFSubsetFont5sk_spI6SkDataERK13SkPDFGlyphUseN5SkPDF8Metadata9SubsetterEPKci+0x48a): undefined reference to `hb_subset_input_create_or_fail'
    ld: SkPDFSubsetFont.cpp:(.text._Z15SkPDFSubsetFont5sk_spI6SkDataERK13SkPDFGlyphUseN5SkPDF8Metadata9SubsetterEPKci+0x4af): undefined reference to `hb_subset_input_glyph_set'
    ld: SkPDFSubsetFont.cpp:(.text._Z15SkPDFSubsetFont5sk_spI6SkDataERK13SkPDFGlyphUseN5SkPDF8Metadata9SubsetterEPKci+0x5d7): undefined reference to `hb_subset_input_set_retain_gids'
    ld: SkPDFSubsetFont.cpp:(.text._Z15SkPDFSubsetFont5sk_spI6SkDataERK13SkPDFGlyphUseN5SkPDF8Metadata9SubsetterEPKci+0x5e4): undefined reference to `hb_subset_input_set_drop_hints'
    ld: SkPDFSubsetFont.cpp:(.text._Z15SkPDFSubsetFont5sk_spI6SkDataERK13SkPDFGlyphUseN5SkPDF8Metadata9SubsetterEPKci+0x5f3): undefined reference to `hb_subset'
    ld: SkPDFSubsetFont.cpp:(.text._Z15SkPDFSubsetFont5sk_spI6SkDataERK13SkPDFGlyphUseN5SkPDF8Metadata9SubsetterEPKci+0x66f): undefined reference to `hb_subset_input_destroy'

as reported in
https://groups.google.com/a/chromium.org/d/msg/chromium-packagers/UyJsVJ5QqWo/jSv5z7-rEQAJ

Change-Id: I997af075c7b7263cd7cc71a63db5b0f93bd1ab59
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715288
Auto-Submit: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Commit-Queue: Dominik Röttsches <drott@chromium.org>
Reviewed-by: Dominik Röttsches <drott@chromium.org>
Cr-Commit-Position: refs/heads/master@{#681760}
---
 third_party/harfbuzz-ng/BUILD.gn | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/third_party/harfbuzz-ng/BUILD.gn b/third_party/harfbuzz-ng/BUILD.gn
index 37d8e334c2..72013eb1db 100644
--- a/third_party/harfbuzz-ng/BUILD.gn
+++ b/third_party/harfbuzz-ng/BUILD.gn
@@ -16,7 +16,10 @@ if (use_system_harfbuzz) {
       "//third_party:freetype_harfbuzz",
       "//third_party/freetype:freetype_source",
     ]
-    packages = [ "harfbuzz" ]
+    packages = [
+      "harfbuzz",
+      "harfbuzz-subset",
+    ]
   }
 } else {
   config("harfbuzz_config") {