在.pro文件中强制32位程序

Question

我知道我可以从命令行运行qmake并使用：

-spec linux-g++-32 

从.pro文件我试图将“-m32”或“-32”添加到“CFLAGS”或“QMAKE_CXXFLAGS”，但它不起作用。

CFLAGS += -m32
QMAKE_CXXFLAGS += -m32

那我该怎么办？

修改

这是用上面的旗帜制作的......

g++ -c -pipe -m32 -g -Wall -W -D_REENTRANT -DQT_XMLPATTERNS_LIB -DQT_XML_LIB -DQT_CORE_LIB -DQT_SHARED -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++ -I../fxa_march -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I. -I../fxa_march -I. -o fxa_march.o ../fxa_march/fxa_march.cpp
g++ -c -pipe -m32 -g -Wall -W -D_REENTRANT -DQT_XMLPATTERNS_LIB -DQT_XML_LIB -DQT_CORE_LIB -DQT_SHARED -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++ -I../fxa_march -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I. -I../fxa_march -I. -o reports.o ../fxa_march/reports.cpp
g++ -c -pipe -m32 -g -Wall -W -D_REENTRANT -DQT_XMLPATTERNS_LIB -DQT_XML_LIB -DQT_CORE_LIB -DQT_SHARED -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++ -I../fxa_march -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I. -I../fxa_march -I. -o fxa_march_params.o ../fxa_march/fxa_march_params.cpp
g++ -c -pipe -m32 -g -Wall -W -D_REENTRANT -DQT_XMLPATTERNS_LIB -DQT_XML_LIB -DQT_CORE_LIB -DQT_SHARED -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++ -I../fxa_march -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I. -I../fxa_march -I. -o reportgroup.o ../fxa_march/reportgroup.cpp
g++ -c -pipe -m32 -g -Wall -W -D_REENTRANT -DQT_XMLPATTERNS_LIB -DQT_XML_LIB -DQT_CORE_LIB -DQT_SHARED -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++ -I../fxa_march -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I. -I../fxa_march -I. -o db_wrapper.o ../fxa_march/db_wrapper.cpp
../fxa_march/db_wrapper.cpp: In function 'std::string as_string(FX::dbvalue, FX::dbtype)':
../fxa_march/db_wrapper.cpp:17: warning: enumeration value 'dbtype_dbvoid' not handled in switch
../fxa_march/db_wrapper.cpp:17: warning: enumeration value 'dbtype_dbdate' not handled in switch
../fxa_march/db_wrapper.cpp:17: warning: enumeration value 'dbtype_dbmoney' not handled in switch
g++ -Wl,-rpath,/Soft/fox_dev/Qt-4.7.4/lib -o fxa_march fxa_march.o reports.o fxa_march_params.o reportgroup.o db_wrapper.o    -L/Soft/fox_dev/Qt-4.7.4/lib -L../../../fx/libfx -lfx -L../../../fx/MQLib -lMQ -L/Soft/fox_dev/boost/boost_bin/lib -lboost_timer -lboost_system -lboost_chrono -lboost_regex -L/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/lib -lxerces-c -lQtXmlPatterns -L/Soft/fox_dev/Qt-4.7.4/lib -lQtNetwork -lQtXml -lQtCore -lpthread
/usr/bin/ld: skipping incompatible ../../../fx/libfx/libfx.so when searching for -lfx
/usr/bin/ld: cannot find -lfx
collect2: ld returned 1 exit status
make: *** [fxa_march] Error 1

Answer 1

好的，这就是重点：

生成的makefile（通过QtCreator）和我的命令行生成的文件之间的差异是：

INCPATH       = -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++-32 -I. -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I.

Vs

INCPATH       = -I/Soft/fox_dev/Qt-4.7.4/mkspecs/linux-g++ -I../fxa_march -I/Soft/fox_dev/Qt-4.7.4/include/QtCore -I/Soft/fox_dev/Qt-4.7.4/include/QtXml -I/Soft/fox_dev/Qt-4.7.4/include/QtXmlPatterns -I/Soft/fox_dev/Qt-4.7.4/include -I../../../fx/libfx -I../../../fx/MQLib -I/Soft/fox_dev/boost/boost_1_54_0 -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I/Soft/fox_dev/xerces-c-3.1.1-x86-linux-gcc-3.4/include -I. -I../fxa_march -I.

然而，人们可以去＆＃34;项目 - ＆gt;构建设置 - ＆gt; [选择要修改的配置] - ＆gt;并编辑＆＃34; Qmake步骤＆＃34;附加论点：

-spec linux-g++-32 

您还需要在.pro文件中添加：

CFLAGS += -m32
QMAKE_CXXFLAGS += -m32

Answer 2

在.pro文件中，尝试在win32

前缀的作用域内写入所有命令

win32 {
     SOURCES += paintwidget_win.cpp
     # ...
 }

仅当设置了win32变量时，才会运行作用域内的命令。