The suggestion of replacing the "genMakefiles"/"genWIndowsMakefiles"
configuration tools with "cmake" comes up every few years. The last time
someone suggested it was in June 2010; here is my response from back then:
http://lists.live555.com/pipermail/live-devel/2010-June/012244.html
Unfortunately the results of the poll that I called for then were
underwhelming, to say the least. I got 8 responses. 2 people said that they
wanted the configuration tools left as is. 3 people said that they would
prefer switching to "cmake". The other 3 people said that they didn't care
either way. So, with such an anemic response, I concluded that there was
simply no consensus for making such a change. The fact that more than 2 years
elapsed until anyone proposed this again reinforces this conclusion.
But there's a more practical objection to using "cmake": It - at least with the
configuration file that was provided - doesn't work for all
platforms/development environments that we support. I tried it yesterday, and
found:
- It works on Mac OS X (except that it got the names of the target application
binaries (e.g., "live555MediaServer") wrong; however, I assume that that is
something that could easily be fixed).
- It doesn't work on FreeBSD, because to successfully compile the code on
FreeBSD, the flag "-DXLOCALE_NOT_USED=1" needs to be added to the command line.
Similarly, for various other platforms, other (platform-specific) flags need
to be added. For the existing tools, the "config.<os>" files serve this
purpose. For "cmake", presumably some similar platform-specific configuration
stuff would need to be added - which would defeat the supposed simplicity
benefit of using "cmake".
- For Windows, it doesn't seem to support certain old versions of Microsoft
'Visual Studio' - e.g., version 5.0 (which is what I happen to use for testing
LIVE555 builds for Windows).
So based on all this: Although anyone is (of course) welcome to use "cmake" or
any other tools themselves. However, at least for now, I won't be supporting
it in our released code.
Ross Finlayson
Live Networks, Inc.
http://www.live555.com/
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