Triggering re-build when header changes

[Verax]

Currently, if I only modify a header file, CodeLite doesn't recompile the source files that have included that header, as only the source files seem to be tracked. Is CodeLite able to figure out which source files have included the modified header and trigger a build of those source files?

[eranif]

Yes it does. However, it uses gcc to determine which files needs to be recompiled (its done via the Makefile)

Which compiler do you use?

Eran

[Jarod42]

Note that dependencies may not be up to date in some situations, as mentioned in
dependencies (.o.d) are not updated correctly (patch)
and in ticket http://sourceforge.net/p/codelite/bugs/751/.

[Verax]

I'm using Sourcery Codebench Lite (GCC 4.7.3 arm-none-eabi). Could you kindly describe the mechanism by which this process works so I can investigate? I'm using the -MD option in my compiler flags.

[Gibbon1]

I had that problem quite awhile ago. I've totally forgotten what the issue exactly was but I have a lingering suspicion that it has to do with using the correct version of make.

[Verax]

I think I may be on to something. My project makefiles look like this:

Code: Select all

ObjectSuffix           :=.o
DependSuffix           :=
PreprocessSuffix       :=.i

Shouldn't the DependSuffix have a ".d"? How do I specify this in CodeLite's settings?

[Verax]

Found it: Settings --> Build Settings... --> Compilers --> Compiler --> Advanced --> Depends extension

Setting that to ".o.d" and checking the "Use compiler -MT switch to generate source dependencies files (*.o.d)" fixed it for me.

What a relief. Having to rebuild after each minor change is major productivity killer.