Use platform specific configs in bazelrc to reduce scope of settings (#…

…1144)

examples/.bazelrc

@@ -1,20 +1,21 @@
+build --enable_platform_specific_config
+
 # Required by Meson on Windows
-build --action_env=PROCESSOR_ARCHITECTURE
-build --action_env=USERPROFILE
+build:windows --action_env=PROCESSOR_ARCHITECTURE
+build:windows --action_env=USERPROFILE
 
 # Required when using the built meson toolchain on windows
-build --nobuild_python_zip
+build:windows --nobuild_python_zip
 
 # Required by Meson and built pkg-config on Windows
-build --enable_runfiles
+build:windows --enable_runfiles
 
 # These are required otherwise paths are too long
 startup --windows_enable_symlinks
-build --action_env=MSYS=winsymlinks:nativestrict
-test --action_env=MSYS=winsymlinks:nativestrict
+build:windows --action_env=MSYS=winsymlinks:nativestrict
+test:windows --action_env=MSYS=winsymlinks:nativestrict
 
 # Enable CC toolchain that supports iOS from https://github.com/bazelbuild/apple_support
-build --enable_platform_specific_config
 build:macos --apple_crosstool_top=@local_config_apple_cc//:toolchain
 build:macos --crosstool_top=@local_config_apple_cc//:toolchain
 build:macos --host_crosstool_top=@local_config_apple_cc//:toolchain