Scons help: Partial builds

[ILMTitan]

Wasn't sure if I should put this in the compiling spring thread or not. I have been using MSVS7 to develop, but I'm moving to a new computer (one I hope can run a certain unnamed game). I'm trying to get everything working on Eclipse CDT with Scons Builder plugin. I've had some troubles, but I can now run a file I get from a scons full build built by Eclipse. The problem is when I save a file. The builder runs a command with the following output:

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E:\Python24\scons.bat -u platform=win32 configuration=debug rts/Game/ConsoleHistory.cpp . 

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scons: Entering directory `E:\eclipse\workspace\Spring'
scons: Reading SConscript files ...
make: Nothing to be done for `all'.
Succes building streflop!
scons: done reading SConscript files.
scons: Building targets ...
scons: building associated BuildDir targets: rts\Game\ConsoleHistory.cpp rts\Game\ConsoleHistory.cpp
scons: building terminated because of errors.
scons: *** Source `rts\Game\ConsoleHistory.cpp' not found, needed by target `build\rts\Game\ConsoleHistory.o'.  Stop.

Running the same command outside of Eclipse gives the same results. Removing the . causes the build to complete successfully, but I don't think it is producing spring.exe at that point. Does someone more familiar with scons see the problem? Is the command itself valid?

[ILMTitan]

I just broke a file by removing a semi-colin, did a full build, replaced the semi-colon, and did a partial build. I got this output:

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E:\Python24\scons.bat -u --implicit-cache platform=win32 configuration=debug build/rts/Game rts/Game/CameraController.cpp . 

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scons: Entering directory `E:\eclipse\workspace\Spring'
scons: Reading SConscript files ...
make: Nothing to be done for `all'.
Succes building streflop!
scons: done reading SConscript files.
scons: Building targets ...
g++ -fsingle-precision-constant -frounding-math -fsignaling-nans -mieee-fp -O2 -pipe -fno-strict-aliasing -mfpmath=387 -mthreads -DNDEBUG -D_REENTRANT -D_SZ_ONE_DIRECTORY -DDIRECT_CONTROL_ALLOWED -DSTREFLOP_X87 -Irts -Irts\System -Ilua\luabind -Ilua\lua\include -Imingwlibs\include -IE:\mingw\include -Imingwlibs\include\freetype2 -IE:\mingw\include\freetype2 -Imingwlibs\include\SDL -IE:\mingw\include\SDL -Imingwlibs\include\python2.4 -IE:\mingw\include\python2.4 -c -o build\rts\Game\CameraController.o rts\Game\CameraController.cpp
scons: building associated BuildDir targets: rts\Game\CameraController.cpp rts\Game\CameraController.cpp
scons: done building targets.

scons: *** Dependency cycle: rts\Game\CameraController.cpp -> rts\Game -> rts -> .
File "E:\Python24\scons\SCons\Taskmaster.py", line 292, in _find_next_ready_node

I don't know if it is related or not, but seems like something that may be more fixable.

[Tobi]

Can't you modify the way it calls scons in Eclipse CDT?

[ILMTitan]

Not really. The Scons plugin is not exactly fully mature. I can change the platform and configuration, and I can add targets before the default target, but without downloading the source and rebuilding the plugin itself (which may be an option), I can't remove any of the build targets.

[ILMTitan]

I guess the question I really want answered (for now) is whether the command should be a generally valid scons command.

[Tobi]

The problem with scons is that it doesn't have "generally valid" or "generally invalid" commands. Because it's python script one can implement stuff as he sees fit, and this doesn't have to be identical to how other projects do it...

(This contrary to e.g. make, where it's pretty much convention to have "all", "clean", "distclean", "install" etc. targets.)

[ILMTitan]

I am a terrible hack.
By Aliasing every build target not in the default build targets to spring, builds now work perfectly. I don't intend on checking that in. Added to the end of Sconstruct.

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for s in BUILD_TARGETS:
	if s not in DEFAULT_TARGETS:
		Alias(s, spring)