如何更好地将可生成的源文件添加到qmake项目？

Question

有somefile.h.in和script somefile.h.pl可以生成像"somefile.h.gen“或"somefile_other.cpp.gen2”这样的文件。

如何在qmake中添加源码生成阶段？在普通的Makefile中，我只需放入如下内容

somefile.o: somefile.cpp somefile.h somefile.h.gen
        ...

soemfile.h.gen: somefile.h.in somefile.h.pl
        ./somefile.h.pl < somefile.h.in # writes somefile.h.gen and friends

Answer 1

我需要使用QMAKE_EXTRA_COMPILERS功能：

PREPROCESS_FILES = somefile.h.in
preprocess.name = Generate various files based on somefile.h.in
preprocess.input = PREPROCESS_FILES
preprocess.output = ${QMAKE_FILE_BASE}.gen
preprocess.commands = perl $$PWD/somefile.h.pl $$PWD/somefile.h.in
preprocess.CONFIG += no_link
QMAKE_EXTRA_COMPILERS += preprocess

PRE_TARGETDEPS += somefile.h.gen