CMake:是否可以仅从静态库而不从源构建可执行文件? [英] CMake: Is it possible to build an executable from only static libraries and no source?
问题描述
我只想从静态库(即.a文件)构建可执行文件。这是可能的,因为 main()
函数包含在这些库之一中。
I would like to build an executable from static libraries (i. e. .a-files) only. This is possible, because the main()
function is contained in one of these libraries.
add_executable()
函数要求我至少提供一个源文件。但这不是我想要做的。
The add_executable()
function requires me to provide at least one source file. But this is not what I want to do.
推荐答案
没有黑客就无法做到这一点。您至少需要一个* .c或* .cpp文件。
There is no way to do it without a hack. You need at least one *.c or *.cpp file.
我要做的是制作一个虚拟 null.cpp
文件(零字节)并使用它。您还可以使用 / dev / null
,但这仅适用于Linux。
What I do is make a dummy null.cpp
file (zero bytes) and use that. You can also use /dev/null
but that only works on Linux.
file(WRITE null.cpp "")
add_executable(tester
null.cpp
)
target_link_libraries(tester
-Wl,--whole-archive
libtest1
libtest2
libtest3
libtest4
-Wl,--no-whole-archive
gtest_main
)
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