libcaca: remove need for compiler blacklist

[evanmiller]

Description

This allows building with older Clang, fixes the build with GCC, and generally simplifies the existing workarounds to cacalabs/libcaca#59

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 10.4.11 8S165 Power Macintosh
Component versions: DevToolsCore-798.0; DevToolsSupport-794.0

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?

[reneeotten]

thanks @evanmiller can you perhaps also traige which of the Trac tickets are still relevant or could be closed?

[evanmiller]

@reneeotten

Close:

42124 - libcaca should not depend on port:imlib2
45171 - libcaca: Undefined symbols

Keep open:

63758 - libcaca @0.99.beta20_0: syntax error near `=~' during configure (10.4.11)

Not sure:

46939 - libcaca 0.99beta1 does not build on Mavericks

[mascguy]

Given that I'm the one that recently added the compiler blacklisting, it seems only fair that I merge this! LOL

[mascguy]

Close:

42124 - libcaca should not depend on port:imlib2

The Mavericks-related ticket (46939) was fixed by my blacklist-related commit a few days ago, so I closed that one too.

However, can you confirm that the imlib2-related ticket should be closed? It looks like there's still a dependency on that port...