[MacPorts] #57196: libgcc7 fails to compile/install on macOS Mojave

[MacPorts]

#57196: libgcc7 fails to compile/install on macOS Mojave
------------------------------+--------------------
  Reporter:  ProgrammingPoet  |      Owner:  (none)
      Type:  defect           |     Status:  new
  Priority:  Normal           |  Milestone:
 Component:  ports            |    Version:  2.5.3
Resolution:                   |   Keywords:  mojave
      Port:  libgcc7          |
------------------------------+--------------------

Comment (by kencu):

 There is a comment to that effect in the gcc* Portfiles:
 {{{
         # We should be using --with-build-sysroot here.  Using --with-
 sysroot
         # changes the behavior of the installed gcc to look in that
 sysroot
         # by default instead of /.  Using --with-build-sysroot is supposed
         # to be used during the build but not impact the installed
 product.
         # Unfortunately, the build fails because the value doesn't get
         # plumbed everywhere it is supposed to.
         #
         # https://trac.macports.org/ticket/53726
         # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79885
         #
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/57196#comment:3>
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