Removing default build of gcc

[Gerald Pfeifer]

On Fri, 25 Jan 2013, David Chisnall wrote:
> In 10.0, the plan is not to ship any GPL'd code, so I'd like to
> start disconnecting things from the default build, starting with
> gcc.  I've been running a gcc-free system for a while, and I think
> all of the ports that don't build with clang are now explicitly
> depending on gcc.

I am surprised you did not run into problems with the ports infra- 
structure, for there definitely are some still.

The patch below is the first in a series of contributions to address
this (though this specific one would not have lead to a failure -- yet).

I plan on shortly committing patches by Yamaya Takashi, destilled
from PR 175252, which will address further issues.

Gerald


Author: gerald
Date: Sat Mar  2 01:06:15 2013
New Revision: 313177
URL: http://svnweb.freebsd.org/changeset/ports/313177

Log:
  Remove a bogus old check that assumes that every version of FreeBSD has
  GCC in the base.
  
  Adjust a comment, now describing the real purpose of the code remaining
  in that block.
  
  PR:		175252

Modified:
  head/Mk/bsd.gcc.mk

Modified: head/Mk/bsd.gcc.mk
==============================================================================
--- head/Mk/bsd.gcc.mk	Sat Mar  2 00:40:53 2013	(r313176)
+++ head/Mk/bsd.gcc.mk	Sat Mar  2 01:06:15 2013	(r313177)
@@ -143,20 +143,16 @@ IGNORE=	Unknown version of GCC specified
 .endif
 
 #
-# Determine current GCCVERSION
+# Initialize _GCC_FOUND${v}.
 #
 .for v in ${GCCVERSIONS}
 . if exists(${LOCALBASE}/bin/gcc${_GCCVERSION_${v}_V:S/.//})
 _GCC_FOUND${v}=	port
 . endif
 . if ${OSVERSION} >= ${_GCCVERSION_${v}_L} && ${OSVERSION} < ${_GCCVERSION_${v}_R}
-_GCCVERSION:=		${v}
 _GCC_FOUND${v}:=	base
 . endif
 .endfor
-.if !defined(_GCCVERSION)
-IGNORE=		Couldn't find your current GCCVERSION (OSVERSION=${OSVERSION})
-.endif
 
 #
 # If the GCC package defined in USE_GCC does not exist, but a later