Pullup ticket #4720 - requested by taca
lang/ruby193-base: build fix

Revisions pulled up:
- pkgsrc/lang/ruby193-base/Makefile                            1.50
- pkgsrc/lang/ruby193-base/distinfo                            1.42-1.44
- pkgsrc/lang/ruby193-base/patches/patch-configure              1.12
- pkgsrc/lang/ruby193-base/patches/patch-lib_mkmf.rb            1.3

---
  Module Name:    pkgsrc
  Committed By:  jperkin
  Date:          Fri Apr  3 08:59:08 UTC 2015

  Modified Files:
          pkgsrc/lang/ruby193-base: distinfo
          pkgsrc/lang/ruby193-base/patches: patch-configure

  Log Message:
  Disable CPU detection on Darwin, the result for 32-bit (i486) is incompatible
  with pkgsrc MACHINE_ARCH (i386).  Fixes 32-bit build, no change for 64-bit.

---
  Module Name:    pkgsrc
  Committed By:  taca
  Date:          Thu Apr 30 03:25:56 UTC 2015

  Modified Files:
          pkgsrc/lang/ruby193-base: Makefile distinfo
  Added Files:
          pkgsrc/lang/ruby193-base/patches: patch-lib_mkmf.rb

  Log Message:
  Avoid to generate empty command line on some platforms:

  $(DLLIB): $(OBJS) Makefile
          ...
          $(Q) $(POSTLINK)

  And POSTLINK is empty macro.  In such case, GNU make ignore empty command
  line but BSD make tries to execute it and causes error.

  Bump PKGREVISION.

(hiramatsu)