我正在按照指南 wiki.qt.io/RaspberryPi_Beginners_Guide
构建 Qtbase,我运行命令 make
并收到以下错误:
locate unistd.h
的输出:
一些细节:PC Debian Jessie、Raspberry Pi 3、安装了 Raspbian 的 SD 卡(如指南中所示)。
最佳答案
我的配置命令行(忽略所有 sysroot/prefix/hostprefix/extprefix 选项):
./configure -opengl es2 -device linux-rasp-pi2-g++ -device-option CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- -sysroot "$R"-opensource -confirm-license -optimized-qmake -reduce-exports -release -make libs -make tools -prefix/usr/lib/arm-linux-gnueabihf/qt5 -extprefix/usr/lib/arm-linux-gnueabihf/qt5 -hostprefix/usr/lib/arm-linux-gnueabihf/qt5
(注意 pi2,可能还有 pi3 的配置)
以及 qtbase 中文件的补丁(更改以匹配您的 gcc 版本和路径):
---------------- mkspecs/devices/linux-rasp-pi2-g++/qmake.conf ----------------
index 9be3f40..fcef488 100644
@@ -11,11 +11,11 @@ QMAKE_INCDIR_EGL = $$[QT_SYSROOT]/opt/vc/include \
$$[QT_SYSROOT]/opt/vc/include/interface/vcos/pthreads \
$$[QT_SYSROOT]/opt/vc/include/interface/vmcs_host/linux
QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}
QMAKE_LIBS_EGL = -lEGL -lGLESv2
-QMAKE_CFLAGS += -march=armv7-a -marm -mthumb-interwork -mfpu=neon-vfpv4 -mtune=cortex-a7 -mabi=aapcs-linux
+QMAKE_CFLAGS += -march=armv7-a -marm -mthumb-interwork -mfpu=neon-vfpv4 -mtune=cortex-a7 -mabi=aapcs-linux -I$$[QT_SYSROOT]/usr/include/c++/4.9/ -I$$[QT_SYSROOT]/usr/include/arm-linux-gnueabihf/c++/4.9
QMAKE_CXXFLAGS = $$QMAKE_CFLAGS
DISTRO_OPTS += hard-float
# Preferred eglfs backend
关于linux - Qt交叉编译Raspi3 - fatal error : unistd. h: No such file or directory,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/41139429/