qt5base-lts/mkspecs/devices/linux-rasp-pi4-v3d-g++/qmake.conf
Laszlo Agocs 60e20abf19 Add a RPi4 device spec
[ChangeLog][Platform Specific Changes][Linux] Added a device spec for
Raspberry Pi 4 (32-bit, V3D)

Change-Id: Idea889842a89dcc74705f1bb9559953dadc07251
Reviewed-by: Eirik Aavitsland <eirik.aavitsland@qt.io>
Reviewed-by: Andy Nichols <andy.nichols@qt.io>
2019-09-22 15:49:40 +00:00

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# qmake configuration for the Raspberry Pi 4 (32-bit) using the Mesa V3D
# graphics stack. (not the Broadcom stack)
#
# This supports accelerated OpenGL both for X11 and DRM/KMS. Perhaps
# Wayland too.
#
# Tested with a sysroot created from Raspbian Buster and a gcc 7.4
# toolchain from Linaro.
#
# Example configure command line, assuming installation to
# /usr/local/qt5pi on device and ~/rpi/qt5 on the host:
#
# ./configure -release -opengl es2 -device linux-rasp-pi4-v3d-g++ -device-option CROSS_COMPILE=~/rpi/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf- \
# -sysroot ~/rpi/sysroot -opensource -confirm-license -make libs -prefix /usr/local/qt5pi -extprefix ~/rpi/qt5 -v
#
# Check the configure output carefully. EGLFS, EGLFS GBM, and EGL on X11
# should all be 'yes'. Otherwise something is wrong.
#
# If getting linker errors like "undefined reference to `_dl_stack_flags'" check the
# symlinks in the sysroot, they were probably not adjusted
# correctly. F.ex. sysroot/usr/lib/arm-linux-gnueabihf/libpthread.so must point to
# sysroot/lib/arm-linux-gnueabihf/libpthread.so.0. If it is a broken link instead, bad
# things will happen.
include(../common/linux_device_pre.conf)
QMAKE_LIBS_EGL += -lEGL
QMAKE_LIBS_OPENGL_ES2 += -lGLESv2 -lEGL
QMAKE_CFLAGS = -march=armv8-a -mtune=cortex-a72 -mfpu=crypto-neon-fp-armv8
QMAKE_CXXFLAGS = $$QMAKE_CFLAGS
DISTRO_OPTS += hard-float
DISTRO_OPTS += deb-multi-arch
EGLFS_DEVICE_INTEGRATION = eglfs_kms
include(../common/linux_arm_device_post.conf)
load(qt_config)