Re: [MacPorts] #72595: gunits 2.24 is broken: error: ‘DBL_DECIMAL_DIG’ undeclared

[MacPorts]

#72595: gunits 2.24 is broken: error: ‘DBL_DECIMAL_DIG’ undeclared
---------------------------+--------------------
  Reporter:  barracuda156  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.10.7
Resolution:                |   Keywords:
      Port:  gunits        |
---------------------------+--------------------

Comment (by saj):

 Hello.  Broken on what?

 https://ports.macports.org/port/gunits/details/

 Looks like it is broken on OS X 10.7 through 10.11.  (Though, oddly, not
 10.5 or 10.6.  It looks like MacPorts builds with a newer compiler on
 these platforms?)

 Is there a way to ask buildbot to build for these old releases prior to
 merge?  I am unable to test on anything older than 12 so it is hard to get
 feedback.

 {{{
 DEBUG: Xcode 8.2.1, CLT 8.2.0.0.1.1480973914
 }}}

 [[https://gist.github.com/yamaya/2924292|list of clangs in old Xcode
 releases]]

 clang 8?

 https://build.macports.org/builders/ports-10.11_x86_64-builder/builds/293844/steps
 /install-port/logs/stdio

 {{{
 checking for /usr/bin/clang option to enable C11 features... none needed
 }}}

 https://releases.llvm.org/8.0.0/tools/clang/docs/UsersManual.html

 > If no -std option is specified, clang defaults to gnu11 mode.

 I don't think I can fix this without access to an old machine.  Don't know
 what is going on.

 Tempted to pin these old OS X releases to gunits 2.22 as a quick fix.

-- 
Ticket URL: <https://trac.macports.org/ticket/72595#comment:2>
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