pdfgrep: Update to 2.1.2 and fix build on <= 10.7

[ryandesign]

Closes: https://trac.macports.org/ticket/62108

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 10.7.5
Xcode 4.6.3

macOS 10.15.6
Xcode 12.4

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL?
• checked your Portfile with port lint?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?

[macportsbot]

Notifying maintainers:
@raimue for port pdfgrep.

[raimue]

Oh, this actually works on OS X 10.7? I still maintain pdfgrep-legacy which was intended for OS X <= 10.8 because of missing C++ features. I guess we could now mark it replaced_by?

[reneeotten]

is this waiting for anything or can it be merged?

[ryandesign]

this actually works on OS X 10.7?

I verified it built on 10.7 and 10.15, and IIRC I ran the --version command or whatever and verified that its output looked sensible.

[raimue]

Okay, thanks, let's merge it then. Removing pdfgrep-legacy can still happen at a later point.