[MacPorts] #59927: bison @3.5 does not build with older gcc versions (gcc-4.2 and similar) because "#pragma GCC diagnostic not allowed inside functions"

[MacPorts]

#59927: bison @3.5 does not build with older gcc versions (gcc-4.2 and similar)
because "#pragma GCC diagnostic not allowed inside functions"
------------------------+--------------------
  Reporter:  ballapete  |      Owner:  kencu
      Type:  defect     |     Status:  closed
  Priority:  Normal     |  Milestone:
 Component:  ports      |    Version:  2.6.2
Resolution:  fixed      |   Keywords:
      Port:  bison      |
------------------------+--------------------

Comment (by kencu):

 when I force the compiler to gcc7, it gets past the redefinition error,
 but still has the WORDSIZE error (which is a deficiency in the Tiger
 stdint.h header):
 {{{
 lib/strverscmp.c
 In file included from lib/strverscmp.c:21:0:
 ./lib/libc-config.h:87:21: error: operator '%' has no left operand
  # define __WORDSIZE %%%
                      ^
 ./lib/libc-config.h:87:21: error: operator '%' has no left operand
  # define __WORDSIZE %%%
                      ^
 make: *** [Makefile:6630: lib/libbison_a-strverscmp.o] Error 1
 }}}

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Ticket URL: <https://trac.macports.org/ticket/59927#comment:30>
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