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Previously the compiler would use system headers located at
/System/Library/Frameworks, which could result in compilation failures
due to the headers not always being up-to-date in regards to the
latest installed macOS SDK headers that come with Xcode.
Fix the issue by passing the SDK path via the -isysroot option to the
compiler and linker invocations.
If no custom SDK path is given, the build system queries the SDK path
via xcrun --show-sdk-path, which returns something similar to
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/
/Developer/SDKs/MacOSX.sdk/
Querying via xcrun is now also done for iphone (and simulator)
platforms as well.
Here is an example of a compilation failure message due to outdated
headers:
platform/osx/os_osx.mm:1421:41: error: use of undeclared identifier 'NSAppKitVersionNumber10_12'; did you mean 'NSAppKitVersionNumber'?
if (floor(NSAppKitVersionNumber) >= NSAppKitVersionNumber10_12) {
^~~~~~~~~~~~~~~~~~~~~~~~~~
NSAppKitVersionNumber
/System/Library/Frameworks/AppKit.framework/Headers/NSApplication.h:26:28: note: 'NSAppKitVersionNumber' declared here
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|---|---|---|
| .. | ||
| export | ||
| globals | ||
| app_delegate.h | ||
| app_delegate.mm | ||
| detect.py | ||
| game_center.h | ||
| game_center.mm | ||
| gl_view.h | ||
| gl_view.mm | ||
| godot_iphone.cpp | ||
| icloud.h | ||
| icloud.mm | ||
| in_app_store.h | ||
| in_app_store.mm | ||
| ios.h | ||
| ios.mm | ||
| logo.png | ||
| main.m | ||
| os_iphone.cpp | ||
| os_iphone.h | ||
| platform_config.h | ||
| platform_refcount.h | ||
| power_iphone.cpp | ||
| power_iphone.h | ||
| SCsub | ||
| sem_iphone.cpp | ||
| sem_iphone.h | ||
| view_controller.h | ||
| view_controller.mm | ||
