| Include Directories and Build Configurations [message #1699354] |
Tue, 23 June 2015 14:34 |
 Hans Ekkehard Plesser
Messages: 1
Registered: June 2015 |
Junior Member |
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Hi!
I am using Mars RC3 under OS X 10.10 and would like to ask for help with a CDT configuration problem that I cannot quite figure out.
I am using Eclipse to work with a larger, Autotools based project. My directory layout is as follows:
project_root
source
bld_a
include
config.h
bld_b
include
config.h
where bld_a and bld_b are directories with differently configured versions of my code. In particular, HAVE_XYZ is set in config.h for variant a, but not for variant b.
I created variant a first and added project_root/bld_a/include to the Includes under C/C++ General > Paths and Symbols. This added the config.h to the includes, and in my project code the #else sections for HAVE_XYZ are greyed out as expected.
I then added variant b, set up a new build configuration for it, and added project_root/bld_b/include to the Includes for this variant, and rebuilt the index.
I now expected that switching the active build configuration would exchange the config.h file included and that the #if HAVE_XYZ part of the code would be greyed out when switching to variant b. But this does not happen. Indeed, I cannot even modify the files shown under includes in the project browser manually.
I see though, that under Properties > C/C++ General > Prerprocessor Include Paths ,... > CDT Managed Build Setting Entries, the include path is updated.
I would very much appreciate any suggestions on how to set things up so that the correct include file and thus the correct preprocessor constants are used for each build configuration. Or do I need to set up a separate Project for each configuration to achieve my goal?
Best regards,
Hans Ekkehard
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