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Details

Type: Bug
Resolution: Done
Priority: P1: Critical
Fix Version/s: 4.8.7
Affects Version/s: 4.8.6
Component/s: Build System
Labels:
None
Environment:

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OS X 10.10

Build configuration:
./configure -prefix /usr/local/Cellar/qt/4.8.6 -system-zlib -qt-libtiff -qt-libpng -qt-libjpeg -confirm-license -opensource -nomake demos -nomake examples -cocoa -fast -release -platform unsupported/macx-clang-libc++ -no-qt3support -nomake docs -arch x86_64

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OS X 10.10 Build configuration: ./configure -prefix /usr/local/Cellar/qt/4.8.6 -system-zlib -qt-libtiff -qt-libpng -qt-libjpeg -confirm-license -opensource -nomake demos -nomake examples -cocoa -fast -release -platform unsupported/macx-clang-libc++ -no-qt3support -nomake docs -arch x86_64

Platform/s:

macOS
Commits:
997d626173d9aba5b01b35e4d95ad162771ba789

Description

Building Qt 4.8.6 on OS X 10.10 ends with compilation error.
This affects installation of Qt via the homebrew: https://github.com/Homebrew/homebrew/issues/29837

Root cause: NSApplication was updated to have delegate as a true property, not a getter/setter pair which implicitly behaves as a property. Because of this and because NSApp is of type 'id' not NSApplication*, the only definition of setDelegate: method visible to the compiler was from the NSFileManager. That is why it was complaining about incompatible types. Replacing the NSApp variable on [NSApplication sharedApplication] fixes the problem, because it returns a typed NSApplication* instance of shared NSApplication.