ports/177179: x11/libX11 compile unable to locate xcb.pc

[Beeblebrox]

>Number:         177179
>Category:       ports
>Synopsis:       x11/libX11 compile unable to locate xcb.pc
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-ports-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Mar 21 08:10:02 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Beeblebrox
>Release:        10-Current
>Organization:
>Environment:
FreeBSD 10.0-CURRENT #0 r248373: Sat Mar 16, amd64
>Description:
compile for x11/libX11 breaks with message "xcb.pc does not exist"
ls /usr/local/libdata/pkgconfig/xcb* shows that xcb.pc and many other xcb* files are present in the named folder.
x11/libxcb was re-compiled & re-installed, but no change re problem. Compile output is:

===>   libX11-1.5.0,1 depends on executable: pkgconf - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/bigreqsproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xcmiscproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xextproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xtrans.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/kbproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/inputproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xf86bigfontproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xorg-macros.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xau.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xdmcp.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/libdata/pkgconfig/xproto.pc - found
===>   libX11-1.5.0,1 depends on file: /usr/local/bin/perl5.16.2 - found
===>   libX11-1.5.0,1 depends on shared library: /usr/local/libdata/pkgconfig/xcb.pc - not found
===>    Verifying install for /usr/local/libdata/pkgconfig/xcb.pc in /asp/ports/x11/libxcb
===>   Returning to build of libX11-1.5.0,1
Error: shared library "/usr/local/libdata/pkgconfig/xcb.pc" does not exist
*** [lib-depends] Error code 1

>How-To-Repeat:
above
>Fix:
NA

>Release-Note:
>Audit-Trail:
>Unformatted: