Opened 3 years ago
Closed 3 years ago
#64345 closed defect (fixed)
qt6-qtbase fails to build on 10.14
| Reported by: | jmroot (Joshua Root) | Owned by: | chrstphrchvz (Christopher Chavez) |
|---|---|---|---|
| Priority: | Normal | Milestone: | |
| Component: | ports | Version: | |
| Keywords: | mojave | Cc: | chrstphrchvz (Christopher Chavez) |
| Port: | qt6-qtbase |
Description
https://build.macports.org/builders/ports-10.14_x86_64-builder/builds/111651
/opt/local/var/macports/build/_opt_bblocal_var_buildworker_ports_build_ports_aqua_qt6/qt6-qtbase/work/qtbase-everywhere-src-6.2.1/src/gui/platform/darwin/qapplekeymapper.mm:534:45: error: property 'length' not found on object of type 'id'
if (charactersWithModifiers.length > 0)
^
Change History (6)
comment:1 Changed 3 years ago by jmroot (Joshua Root)
comment:2 Changed 3 years ago by chrstphrchvz (Christopher Chavez)
The relevant code is guarded by if (@available(macOS 10.15, *)) {…}: https://github.com/qt/qtbase/blob/v6.2.1/src/gui/platform/darwin/qapplekeymapper.mm#L525. I’m not too familiar with this Objective-C feature, but why does it not prevent the errors? Could it be that the Xcode clang on the builder or SDK are too old, or would it complain during configure that were the case?
comment:3 Changed 3 years ago by chrstphrchvz (Christopher Chavez)
| Cc: | chrstphrchvz added |
|---|
comment:4 Changed 3 years ago by jmroot (Joshua Root)
@available is a runtime check. It allows you to build against a newer SDK and deploy to an older OS version, but not to build against an older SDK. To accomplish the latter, you also need to wrap the if statement in a preprocessor check like so:
#include <AvailabilityMacros.h>
…
#if MAC_OS_X_VERSION_MAX_ALLOWED >= 101500
if (@available(macOS 10.15, *)) {
…
}
#endif
comment:5 Changed 3 years ago by chrstphrchvz (Christopher Chavez)
PR opened: https://github.com/macports/macports-ports/pull/14427. Could someone with access to 10.14 please check if the port now builds, or if it now encounters other errors?
comment:6 Changed 3 years ago by chrstphrchvz (Christopher Chavez)
| Owner: | set to chrstphrchvz |
|---|---|
| Resolution: | → fixed |
| Status: | new → closed |
In 9fd24dff1496f80ed7a4d855b9904df16ea29b62/macports-ports (master):