Log message:
Pullup ticket #6639 - requested by nia
print/poppler: build fix

Revisions pulled up:
- print/poppler/Makefile.common                                 1.134
- print/poppler/buildlink3.mk                                   1.90

-------------------------------------------------------------------
   Module Name:	pkgsrc
   Committed By:	nia
   Date:		Sat May 21 07:43:57 UTC 2022

   Modified Files:
   	pkgsrc/print/poppler: Makefile.common buildlink3.mk

   Log message:
   poppler: Bump GCC requirement to GCC 7, it wants std::optional.

   To generate a diff of this commit:
   cvs rdiff -u -r1.133 -r1.134 pkgsrc/print/poppler/Makefile.common
   cvs rdiff -u -r1.89 -r1.90 pkgsrc/print/poppler/buildlink3.mk