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1 # Copyright 2014 The Chromium Authors. All rights reserved. | 1 # Copyright 2014 The Chromium Authors. All rights reserved. |
2 # Use of this source code is governed by a BSD-style license that can be | 2 # Use of this source code is governed by a BSD-style license that can be |
3 # found in the LICENSE file. | 3 # found in the LICENSE file. |
4 | 4 |
5 import("config.gni") | 5 import("config.gni") |
6 if (is_clang) { | 6 if (is_clang) { |
7 import("//build/config/clang/clang.gni") | 7 import("//build/config/clang/clang.gni") |
8 } | 8 } |
9 | 9 |
10 visibility = [ "//third_party/WebKit/*" ] | 10 visibility = [ "//third_party/WebKit/*" ] |
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34 | 34 |
35 # inside_blink ----------------------------------------------------------------- | 35 # inside_blink ----------------------------------------------------------------- |
36 | 36 |
37 config("inside_blink") { | 37 config("inside_blink") { |
38 defines = [ | 38 defines = [ |
39 "BLINK_IMPLEMENTATION=1", | 39 "BLINK_IMPLEMENTATION=1", |
40 "INSIDE_BLINK", | 40 "INSIDE_BLINK", |
41 ] | 41 ] |
42 } | 42 } |
43 | 43 |
| 44 # blink_pch -------------------------------------------------------------------- |
| 45 |
| 46 # Precompiled headers can save a lot of time compiling since Blink has |
| 47 # a lot of source in header files. |
| 48 |
| 49 import("//build/config/pch.gni") |
| 50 |
| 51 config("blink_pch") { |
| 52 if (!disable_precompiled_headers) { |
| 53 if (is_win) { |
| 54 # This is a string rather than a file GN knows about. It has to match |
| 55 # exactly what's in the /FI flag below, and what might appear in the |
| 56 # source code in quotes for an #include directive. |
| 57 precompiled_header = rebase_path("build/win/Precompile.h", root_build_dir) |
| 58 |
| 59 # This is a file that GN will compile with the above header. It will be |
| 60 # implicitly added to the sources (potentially multiple times, with one |
| 61 # variant for each language used in the target). |
| 62 precompiled_source = |
| 63 "//third_party/WebKit/Source/build/win/Precompile.cpp" |
| 64 |
| 65 # Force include the header. |
| 66 cflags = [ "/FI$precompiled_header" ] |
| 67 |
| 68 # Disable warning for "this file was empty after preprocessing". This |
| 69 # error is generated only in C mode for ANSI compatibility. It conflicts |
| 70 # with precompiled headers since the source file that's "compiled" for |
| 71 # making the precompiled header is empty. |
| 72 # |
| 73 # This error doesn't happen every time. In VS2013, it seems if the .pch |
| 74 # file doesn't exist, no error will be generated (probably MS tested this |
| 75 # case but forgot the other one?). To reproduce this error, do a build, |
| 76 # then delete the precompile.c.obj file, then build again. |
| 77 cflags_c = [ "/wd4206" ] |
| 78 } |
| 79 } |
| 80 } |
| 81 |
44 # config ----------------------------------------------------------------------- | 82 # config ----------------------------------------------------------------------- |
45 | 83 |
46 config("config") { | 84 config("config") { |
47 include_dirs = [ | 85 include_dirs = [ |
48 ".", | 86 ".", |
49 "..", | 87 "..", |
50 "$root_gen_dir/blink", | 88 "$root_gen_dir/blink", |
51 "$root_gen_dir/third_party/WebKit", | 89 "$root_gen_dir/third_party/WebKit", |
52 ] | 90 ] |
53 | 91 |
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124 } | 162 } |
125 } | 163 } |
126 | 164 |
127 if (is_mac) { | 165 if (is_mac) { |
128 # This sets up precompiled headers for Mac. | 166 # This sets up precompiled headers for Mac. |
129 config("mac_precompiled_headers") { | 167 config("mac_precompiled_headers") { |
130 precompiled_header = rebase_path("build/mac/Prefix.h", root_build_dir) | 168 precompiled_header = rebase_path("build/mac/Prefix.h", root_build_dir) |
131 precompiled_source = "//third_party/WebKit/Source/build/mac/Prefix.h" | 169 precompiled_source = "//third_party/WebKit/Source/build/mac/Prefix.h" |
132 } | 170 } |
133 } | 171 } |
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