compilation error in schur_eliminator_test about ceres-solver HOT 5 CLOSED

Comment #1 originally posted by sandwichmaker on 2012-05-02T15:24:55.000Z:

This looks like a gflags/glog related issue. Could you describe your cmake command line please?

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Comment #2 originally posted by sandwichmaker on 2012-05-02T17:02:36.000Z:

I ran into the same error (among a couple of other problems). It looks like DECLARE_string is supposed to be defined in glog/logging.h
However, in glog/logging.h the macros are only temporarily defined and they seem to be gflag related (the undef in logging.h is guarded by a MUST_UNDEF_GFLAGS_DECLARE_MACROS macro).

In conclusion, I found that including gflags/gflags.h in the affected files solves the problem.

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Comment #3 originally posted by sandwichmaker on 2012-05-02T17:15:05.000Z:

Additionally, it seems that this only happens when glog is compiled without gflags support, as otherwise it includes gflags itself. And this only happens when you do not read the build instructions, as they say that glog needs to be compiled with gflags support... so if Arnaud's problem is a different one, I'm sorry for the noise.

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Comment #4 originally posted by sandwichmaker on 2012-05-03T05:12:44.000Z:

Please compile with glog linked with gflags. That should fix this issue.
I am closing this bug for now. If it is still an issue, we will revisit it.

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Comment #5 originally posted by sandwichmaker on 2012-05-03T06:17:19.000Z:

Compiling glog linked with gflags fixed the error. Thanks!!
Sorry for the noise...

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