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How can my (C++) code tell if it is being compiled inside Eclipse?

Answer 1

+3 A:

You can yourself define _Eclipse_ or something else for the build you run on Eclipse.

Amit Kumar 2010-01-20 02:50:13

Yikes! The bleedin' obvious staring me in the face!!But it's like one of those coding things where you have to think of the negative case.That will work. Thanks, Amit

Mawg 2010-01-20 12:23:30

Answer 2

+1 A:

Why would you want to pollute your code like that? (Clarification: I mean write Eclipse- or Hudson-specific code. Just pick a better macro name and define that in Eclipse or Hudson.)

I'd make seperate targets or otherwise change the build file to pass a -DECLIPSE or -DHUDSON to the preprocessor.

Or pass a parameter to make:
Project Properties -> C/C++ Build -> Build command: make CFLAGS+=-DECLIPSE

Edit: I cannot get += to work from the command line. You might want to try, inside the Makefile:

  ifeq ($(BUILT_BY), eclipse)
    CFLAGS += -D_Eclipse_
    CXXFLAGS += -D_Eclipse_
  endif

and modify eclipse's 'make command' as such: make BUILT_BY=eclipse

aib 2010-01-20 02:51:22

plus one for "pollute" - post another comment and I will plus one that too. That's exactly how I feel about it too.And also you other suggestions -I didn't know how to pass -D parameters to make, but never thought of omitting them by default by declaring them only in exlipse.Thnaks

Mawg 2010-01-20 12:26:19

Answer 3

A:

Sorry, folks, but his question is answered by another ...

http://stackoverflow.com/questions/2039643/passing-c-c-defines-to-makefile/2105932#2105932

Mawg 2010-01-21 08:03:50

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How can my (C++) code tell if it is being compiled inside Eclipse?

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