[MacPorts] #35540: google-test: Update to 1.7.0

[MacPorts]

#35540: google-test: Update to 1.7.0
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  Reporter:  pengyu.ut@…  |      Owner:  macports-tickets@…
      Type:  update       |     Status:  new
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  google-test  |
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Comment (by lynxluna@…):

 Replying to [comment:3 ryandesign@…]:
 > I updated the patch to use cmake, since that's the only supported build
 system since 1.5.0, but it still doesn't have an install target.
 >
 > I found a comment at the bottom of Makefile.am which says that "`make
 install`" is disabled because "installing a compiled version of Google
 Test can lead to undefined behavior due to violation of the
 [http://en.wikipedia.org/wiki/One_Definition_Rule One-Definition Rule]."
 They have a [https://code.google.com/p/googletest/wiki/FAQ
 #Why_is_it_not_recommended_to_install_a_pre-compiled_copy_of_Goog FAQ
 entry] about this too.
 >
 > So we can either think we're smarter than Google and install it anyway
 (and as a non-C++-programmer I don't feel competent to do that), or we can
 delete google-test from MacPorts.

 When we write C++ code, we usually uses some compiler flags that specific
 to our need. This, as google pointed out on their
 [https://code.google.com/p/googletest/wiki/FAQ
 #Why_is_it_not_recommended_to_install_a_pre-compiled_copy_of_Goog FAQ
 entry] can cause problems. If gtest is compiled using macports flags and I
 use the flags that is slightly different or using different compiler, e.g.
 clang vs gcc, it can create a runtime problem. I usually end up just
 including all of gtest sources and build it directly on my test cases
 using the same compiler and the same compiler flags as the rest of my
 sources.

 I think it's wise to delete the `google-test` framework from macports as
 well as `gmock` as it depends on `google-gtest` and put the warning upon
 installation.

-- 
Ticket URL: <https://trac.macports.org/ticket/35540#comment:5>
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