qt5base-lts/config.tests/arch/arch.pro
Bradley T. Hughes ba6952b28d Remove -arch argument and #define QT_ARCH from configures
Do not try to detect the host or target architectures using uname or
similar, and do not override with the -arch or -host-arch configure
arguments. The configures will still accept the -arch and -host-arch
arguments, but it ignores them and instead outputs a warning stating
that these arguments are obsolete and should not be used.

Set QT_ARCH and QT_HOST_ARCH qconfig.pri variables based on the compiler
target. This is done by running qmake (twice when cross-compiling) on
config.tests/arch/arch.pro, which preprocesses a file that contains all
knowns processors.

On Windows, configure.exe has never run any config.tests before, and
does not currently have a function to run a program and capture its
output. Use _popen() to accomplish this (as qmake does for its system()
function). This needs to be done after qmake is built, as does the
mkspecs/qconfig.pri generation. As a side effect, the configure steps
have been slightly re-ordered, but the overall result is the same. The
displayConfig() call is moved to just before generating Makefiles, so
that it can show the detected architecture(s).

Change-Id: I77666c77a93b48848f87648d08e79a42f721683f
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@nokia.com>
2012-03-13 12:27:44 +01:00

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CONFIG -= qt debug_and_release
# Detect target by preprocessing a file that uses Q_PROCESSOR_* macros from qprocessordetection.h
COMMAND = $$QMAKE_CXX $$QMAKE_CXXFLAGS -E $$PWD/arch.cpp
# 'false' as second argument to system() prevents qmake from stripping newlines
COMPILER_ARCH = $$system($$COMMAND, false)
# Message back to configure so that it can set QT_ARCH and QT_HOST_ARCH
message($$COMPILER_ARCH)