如何为qmake中的不同目标指定单独的编译选项？

Question

有没有办法为qmake中的不同目标指定单独的编译选项？

例如:

QMAKE_CXXFLAGS += -O 
SOURCES += file1.cpp    

QMAKE_CXXFLAGS += -std=gnu++0x -O 
SOURCES += file2.cpp

因此file1.cpp将仅使用-O选项编译,文件file2.cpp使用-std = gnu ++ 0x -O选项编译.

Answer 1

您可以创建并使用单独的"额外编译器",如下所示:

# Use the built-in compiler for file1.cpp
QMAKE_CXXFLAGS += -O 
SOURCES += file1.cpp    

# Create a new compiler for file2.cpp
gnupp0x.input = SOURCES_GNUPP0X
gnupp0x.output = ${QMAKE_FILE_BASE}.o
gnupp0x.commands = g++ -std=gnu++0x $$QMAKE_CXXFLAGS ${QMAKE_FILE_NAME} -o ${QMAKE_FILE_OUT}
QMAKE_EXTRA_COMPILERS += gnupp0x

# Use the new compiler for file2.cpp
SOURCES_GNUPP0X += file2.cpp