diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2015-07-08 14:09:10 -0700 |
|---|---|---|
| committer | Thiago Macieira <thiago.macieira@intel.com> | 2015-07-17 17:36:27 +0000 |
| commit | ff4444065158285b573c6fc0a91c9e75fc7ddd96 (patch) | |
| tree | b65d2244895a8f873997551ea8079ac4276ca12e /mkspecs/features/c++14.prf | |
| parent | 85ff35126623e6f26c84d9fa8a35b6762aefb110 (diff) | |
Make CONFIG += c++11 by default not disable GNU extensions
Prefer -std=gnu++11 unless strict_c++11 is defined. You can enable
strict C++11/C++14 mode by using
CONFIG += strict_c++
That is enabled for Qt's own code, so we we don't accidentally use GNU
extensions in portable code.
There's no support for strict C++98 mode (that is, the -ansi option).
[ChangeLog][qmake] By default, GNU extensions are now enabled with
Clang, GCC and ICC even in C++11 and C++14 modes. To disable the GNU
extensions, add to your .pro file: CONFIG += strict_c++.
Change-Id: Ib056b47dde3341ef9a52ffff13ef14de2169bef5
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Diffstat (limited to 'mkspecs/features/c++14.prf')
| -rw-r--r-- | mkspecs/features/c++14.prf | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/mkspecs/features/c++14.prf b/mkspecs/features/c++14.prf index a54d11840d..076458560d 100644 --- a/mkspecs/features/c++14.prf +++ b/mkspecs/features/c++14.prf @@ -2,15 +2,21 @@ intel_icc { # ICC does not support C++14 yet } else: clang { # Clang has supported -std=c++1y since version 3.2 - greaterThan(QT_CLANG_MAJOR_VERSION, 3)|greaterThan(QT_CLANG_MINOR_VERSION, 1): \ + greaterThan(QT_CLANG_MAJOR_VERSION, 3)|greaterThan(QT_CLANG_MINOR_VERSION, 1) { QMAKE_CXXFLAGS_CXX11 = -std=c++1y + QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++1y + } # Unknown how long Apple Clang has supported -std=c++1y, but at least since XCode 5.0 - greaterThan(QT_APPLE_CLANG_MAJOR_VERSION, 4): \ + greaterThan(QT_APPLE_CLANG_MAJOR_VERSION, 4) { QMAKE_CXXFLAGS_CXX11 = -std=c++1y + QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++1y + } } else: gcc { # GCC has supported -std=c++1y since 4.8 - greaterThan(QT_GCC_MAJOR_VERSION, 4)|greaterThan(QT_GCC_MINOR_VERSION, 7): \ + greaterThan(QT_GCC_MAJOR_VERSION, 4)|greaterThan(QT_GCC_MINOR_VERSION, 7) { QMAKE_CXXFLAGS_CXX11 = -std=c++1y + QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++1y + } } # Delegate to c++11.prf |