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Use CDT to Generate Makefile from Within Ant build.xml [message #892779]

Fri, 29 June 2012 15:41

Reece Johnston

Messages: 2
Registered: June 2012

Junior Member

I was wondering if there is a way to call the CDT builder and just generate the makefile and its .mk files. I'm aware I can use something like "eclipse -nosplash -application org.eclipse.cdt.managedbuilder.core.headlessbuild -data ${workspace_loc} -build ${project_loc}/Debug" from a command line to kick off the entire build process for a single project; however, I need to run from within the IDE, and I just want the makefile, objects.mk, sources.mk, and subdir.mk files. Is there a command to do this?

Furthermore, our projects are in a constant state of flux, so it is impractical to have a hardstate makefile for each one (so don't suggest that). Ultimately, the CDT builder does a good job generating the makefile (and its supporting files), but it takes an unacceptably long time to build (~3 min compared to ~12 s when just using make in Ant).

Also, if anyone could point me in a direction such that I could include this as a(n) exec/command in an Ant build.xml, it would be appreciated.

Thanks,
Reece

::System Info::
Eclipse: Indigo SR2 (2.7.*)
CDT: Eclipse IDE for C/C++ Linux Developers 1.4.2.20120213-0813
OS: Linux CentOS 5.4
Ant: Apache Ant 1.8

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Re: Use CDT to Generate Makefile from Within Ant build.xml [message #893848 is a reply to message #892779]

Thu, 05 July 2012 16:51

Reece Johnston

Messages: 2
Registered: June 2012

Junior Member

Well, I solved my own problem (sort of). It's not the cleanest solution, but you can keep the CDT builder enabled and remove all the build commands from your C/C++ Build Settings for each project. This will still call the CDT builder internally in the IDE, but with blank build commands given, nothing will be executed outside of the makefile generation. Then, the IDE moves onto the next builder (the Ant builder); where build execution occurs.

If anyone knows a way of doing this without keeping the CDT builder enabled, it would still be worth knowing.

Thanks,
Reece

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