qt5base-lts/mkspecs/common/g++-base.conf
Joerg Bornemann b5ed3cb7ba qmake: Add support for C++23
Add the CONFIG value c++2b that represent the upcoming C++23 standard.
Add QMAKE_CXXFLAGS_CXX2B and QMAKE_CXXFLAGS_GNUCXX2B.
On MSVC, use /std:c++latest when c++2b is active.

This fixes an issue with MSVC where c++latest implied the /std:c++20
compiler flag.

Pick-to: 5.15 6.2 6.3
Fixes: QTBUG-102202
Change-Id: Ie00ee5793c1a649195013c8c19efc8d59cf0acc9
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
Reviewed-by: Kai Koehne <kai.koehne@qt.io>
2022-04-05 14:27:50 +02:00

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#
# Qmake configuration for the GNU C++ compiler
#
# Before making changes to this file, please read the comment in
# gcc-base.conf, to make sure the change goes in the right place.
#
# To verify that your change has the desired effect on the final configuration
# you can use the manual test in tests/manual/mkspecs.
#
QMAKE_COMPILER = gcc
QMAKE_CC = $${CROSS_COMPILE}gcc
QMAKE_LINK_C = $$QMAKE_CC
QMAKE_LINK_C_SHLIB = $$QMAKE_CC
QMAKE_CXX = $${CROSS_COMPILE}g++
QMAKE_LINK = $$QMAKE_CXX
QMAKE_LINK_SHLIB = $$QMAKE_CXX
QMAKE_PCH_OUTPUT_EXT = .gch
QMAKE_CFLAGS_PRECOMPILE = -x c-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CFLAGS_USE_PRECOMPILE = -include ${QMAKE_PCH_OUTPUT_BASE}
QMAKE_CXXFLAGS_PRECOMPILE = -x c++-header -c ${QMAKE_PCH_INPUT} -o ${QMAKE_PCH_OUTPUT}
QMAKE_CXXFLAGS_USE_PRECOMPILE = $$QMAKE_CFLAGS_USE_PRECOMPILE
QMAKE_CFLAGS_GNUC99 = -std=gnu99
QMAKE_CFLAGS_GNUC11 = -std=gnu11
QMAKE_CXXFLAGS_CXX11 = -std=c++11
QMAKE_CXXFLAGS_CXX14 = -std=c++1y
QMAKE_CXXFLAGS_CXX1Z = -std=c++1z
QMAKE_CXXFLAGS_CXX2A = -std=c++2a
QMAKE_CXXFLAGS_CXX2B = -std=c++2b
QMAKE_CXXFLAGS_GNUCXX11 = -std=gnu++11
QMAKE_CXXFLAGS_GNUCXX14 = -std=gnu++1y
QMAKE_CXXFLAGS_GNUCXX1Z = -std=gnu++1z
QMAKE_CXXFLAGS_GNUCXX2A = -std=gnu++2a
QMAKE_CXXFLAGS_GNUCXX2B = -std=gnu++2b
QMAKE_LFLAGS_CXX11 =
QMAKE_LFLAGS_CXX14 =
QMAKE_LFLAGS_CXX1Z =