[Chromecast] Include all stdlibc++/libgcc symbols in cast_shell.

build/config/BUILD.gn

Index: build/config/BUILD.gn
diff --git a/build/config/BUILD.gn b/build/config/BUILD.gn
index 643d4d9db4c6997e3c47ffb8091abdaa4e9a10b6..90516659603dedb5978157ee3070e8fb2c90a999 100644
--- a/build/config/BUILD.gn
+++ b/build/config/BUILD.gn
@@ -4,6 +4,7 @@
 
 import("//build/config/allocator.gni")
 import("//build/config/chrome_build.gni")
+import("//build/config/chromecast_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/sanitizers/sanitizers.gni")
@@ -408,6 +409,61 @@ config("default_libs") {
   }
 }
 
+# Executable configs -----------------------------------------------------------
+
+# Windows linker setup for EXEs and DLLs.
+if (is_win) {
+  _windows_linker_configs = [
+    "//build/config/win:default_incremental_linking",
+    "//build/config/win:sdk_link",
+    "//build/config/win:common_linker_setup",
+
+    # Default to console-mode apps. Most of our targets are tests and such
+    # that shouldn't use the windows subsystem.
+    "//build/config/win:console",

[brettw, 2015/12/08 01:08:58]

This won't work since targets need to override it with the "windowed" config.
Both chrome and content_shell expect to be able to remove this config from the
default list and add back their own, and I think this is common enough we need
to support doing this easily.

The same for incremental linking.

The other configs should be OK to move here. I see the mini_installer removes
"...:common_linker_setup" but it wants to manually do most stuff. In that case,
you can fix that code to remove the main "...:executable_config" and then put
back the ones you need.

[bcf, 2015/12/08 02:22:26]

Done.

+  ]
+}
+
+# This config defines the configs applied to all executables.
+config("executable_config") {
+  configs = []
+
+  if (is_win) {
+    configs += _windows_linker_configs
+  } else if (is_mac) {
+    configs += [
+      "//build/config/mac:mac_dynamic_flags",
+      "//build/config/mac:mac_executable_flags",
+    ]
+  } else if (is_linux || is_android) {
+    configs += [ "//build/config/gcc:executable_ldconfig" ]
+    if (is_android) {
+      configs += [ "//build/config/android:executable_config" ]
+    } else if (is_chromecast) {
+      configs += [ "//build/config/chromecast:executable_config" ]
+    }
+  }
+}
+
+# Shared library configs -------------------------------------------------------
+
+# This config defines the configs applied to all shared libraries.
+config("shared_library_config") {
+  configs = []
+
+  if (is_win) {
+    configs += _windows_linker_configs
+  } else if (is_mac) {
+    configs += [ "//build/config/mac:mac_dynamic_flags" ]
+  } else if (is_android) {
+    # Strip native JNI exports from shared libraries by default. Binaries that
+    # want this can remove this config.
+    configs += [ "//build/config/android:hide_native_jni_exports" ]
+  } else if (is_chromecast) {
+    configs += [ "//build/config/chromecast:shared_library_config" ]
+  }
+}
+
 # Add this config to your target to enable precompiled headers.
 #
 # Precompiled headers are done on a per-target basis. If you have just a couple