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- Add a Buildroot 'device' to ease cross-compilation
- Qt5 has a mechanism to support "device" profiles, so that people can
- specify the compiler, compiler flags and so on for a specific device.
- We leverage this mechanism in the Buildroot packaging of qt5 to
- simplify cross-compilation: we have our own "device" definition, which
- allows us to easily pass the cross-compiler paths and flags from our
- qt5.mk.
- Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
- Index: b/mkspecs/devices/linux-buildroot-g++/qmake.conf
- ===================================================================
- --- /dev/null
- +++ b/mkspecs/devices/linux-buildroot-g++/qmake.conf
- @@ -0,0 +1,38 @@
- +MAKEFILE_GENERATOR = UNIX
- +CONFIG += incremental gdb_dwarf_index
- +QMAKE_INCREMENTAL_STYLE = sublib
- +
- +include(../../common/linux.conf)
- +include(../../common/gcc-base-unix.conf)
- +include(../../common/g++-unix.conf)
- +
- +load(device_config)
- +
- +QT_QPA_DEFAULT_PLATFORM = eglfs
- +
- +CROSS_COMPILE =
- +COMPILER_CFLAGS =
- +COMPILER_CXXFLAGS =
- +
- +# modifications to g++.conf
- +QMAKE_CC = $${CROSS_COMPILE}gcc
- +QMAKE_CXX = $${CROSS_COMPILE}g++
- +QMAKE_LINK = $${QMAKE_CXX}
- +QMAKE_LINK_SHLIB = $${QMAKE_CXX}
- +
- +# modifications to linux.conf
- +QMAKE_AR = $${CROSS_COMPILE}ar cqs
- +QMAKE_OBJCOPY = $${CROSS_COMPILE}objcopy
- +QMAKE_STRIP = $${CROSS_COMPILE}strip
- +
- +#modifications to gcc-base.conf
- +QMAKE_CFLAGS += $${COMPILER_CFLAGS}
- +QMAKE_CXXFLAGS += $${COMPILER_CXXFLAGS}
- +QMAKE_CXXFLAGS_RELEASE += -O3
- +
- +QMAKE_LIBS += -lrt -lpthread -ldl
- +
- +# Sanity check
- +deviceSanityCheckCompiler()
- +
- +load(qt_config)
- Index: b/mkspecs/devices/linux-buildroot-g++/qplatformdefs.h
- ===================================================================
- --- /dev/null
- +++ b/mkspecs/devices/linux-buildroot-g++/qplatformdefs.h
- @@ -0,0 +1 @@
- +#include "../../linux-g++/qplatformdefs.h"
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