the list of sources. But another problem came up: Only the first single
list item seems to be scanned for implicit dependencies. And I failed to
come up with a list or command syntax that would allow me to have the
other 99+ sources scanned as well.
I think I came up with a usable workaround for now. A semaphore file is
created for every source file which IMPLICIT_DEPENDS on that source
file, and my actual version.cc now depends on all the semaphore files.
Basically this:
foreach (srcfile ${SOURCEFILES})
string(REPLACE "/" "_" srcok ${srcfile})
set(semafile dep_${srcok})
add_custom_command(
OUTPUT ${semafile}
COMMAND touch ${semafile}
IMPLICIT_DEPENDS CXX ${PROJECT_SOURCE_DIR}/src/${srcfile}
COMMENT ""
)
set(VERSION_DEPFILES ${VERSION_SEMAFILES} ${semafile})
endforeach(srcfile)
add_custom_command(
OUTPUT version.cc
COMMAND create_version_cc.sh
DEPENDS ${VERSION_SEMAFILES}
)
I'm open for improvements and better ideas...
Kolja
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