Question

Qt creator交叉编译带图片的程序出现问题,版本4.7

:: warning: libts-1.0.so.0, needed by /opt/Qt4.7/lib/libQtGui.so, not found (try using -rpath or -rpath-link)
:: warning: libpng14.so.14, needed by /opt/Qt4.7/lib/libQtGui.so, not found (try using -rpath or -rpath-link)
:: warning: libz.so.1, needed by /opt/Qt4.7/lib/libQtGui.so, not found (try using -rpath or -rpath-link)
出现好多类似这样的;
/opt/Qt4.7/lib/libQtGui.so:: error: undefined reference to `png_get_tRNS@PNG14_0'
/opt/Qt4.7/lib/libQtGui.so:: error: undefined reference to `png_set_bgr@PNG14_0'
/opt/Qt4.7/lib/libQtGui.so:: error: undefined reference to `png_set_packing@PNG14_0'
/opt/Qt4.7/lib/libQtGui.so:: error: undefined reference to `png_destroy_read_struct@PNG14_0'
/opt/Qt4.7/lib/libQtCore.so:: error: undefined reference to `uncompress'
:: error: collect2: ld returned 1 exit status

设置应该是没错的.

我以为是缺少那几个库文件,但是去网上搜没看到那几个库文件啊,libpng14.so.14,libz.so.1,libts-1.0.so.0都没有.
我的/Qt4.7/mkspecs/qws/linux-arm-g++/qmake.conf是这样子的:

#
# qmake configuration for building with arm-linux-g++
#

include(../../common/g++.conf)
include(../../common/linux.conf)
include(../../common/qws.conf)

# modifications to g++.conf
QMAKE_CC = arm-linux-gcc -lts -lpng
QMAKE_CXX = arm-linux-g++ -lts -lpng
QMAKE_LINK = arm-linux-g++ -lts -lpng
QMAKE_LINK_SHLIB = arm-linux-g++ -lts -lpng

# modifications to linux.conf
QMAKE_AR = arm-linux-ar cqs
QMAKE_OBJCOPY = arm-linux-objcopy
QMAKE_STRIP = arm-linux-strip

load(qt_config)

我不知道该怎么改路径链接.

求各位大神相助啊.





Answer 1

找不到 libQtGui.so 这个库， 添加环境变量 LIBRARY_PATH=/opt/Qt4.7/lib 试试
另外你使是用 arm-linux-gcc 编译程序， 需要保证 QT 下的 libQtGui.so 库也是用 arm-linux-gcc 编译的， 否则编译链接会出问题