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Build process fails with pre-processor conditionals [imported] #792

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cmaglie opened this issue Nov 15, 2012 · 2 comments
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Build process fails with pre-processor conditionals [imported] #792

cmaglie opened this issue Nov 15, 2012 · 2 comments
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Component: Preprocessor The Arduino sketch preprocessor converts .ino files into C++ code before compilation
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Release 1.6.6

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@cmaglie
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cmaglie commented Nov 15, 2012

This is Issue 792 moved from a Google Code project.
Added by 2012-01-15T09:29:01.000Z by [email protected].
Please review that bug for more context and additional comments, but update this bug.

Original labels: Type-Defect, Priority-Medium

Original description

Create a sketch with

if 0

include <lib1.h>

else

include <lib2.h>

endif

The Arduino build process will build and link both lib1 and lib2.

Arduino IDE 1.0, 0023, 0022, 0021 and probably before.
Linux.

You probably ought to run g++ -E (ignoring all errors) and scan the resulting output for the files it has included, then remove all the libraries again from the build process that are not actually used (or something along those lines).
@ffissore ffissore added the New label Feb 27, 2014
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Answer posted on the original issue

@ffissore ffissore self-assigned this Jan 28, 2015
@ffissore ffissore added the Component: Preprocessor The Arduino sketch preprocessor converts .ino files into C++ code before compilation label Jan 28, 2015
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Fixed by #3779

@ffissore ffissore added this to the Release 1.6.6 milestone Sep 11, 2015
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