git: gcc47/libsupc++: Fix config.h for cp-demangle.c

[Aaron LI]

commit ab75162ef72c993d0d4a8270d3c0d330c0fb393a
Author: Aaron LI <aly at aaronly.me>
Date:   Mon Mar 23 15:31:16 2026 +0800

    gcc47/libsupc++: Fix config.h for cp-demangle.c
    
    Similar to the previous fix to gcc80/libstdcxx/libconv_supc, apply the
    same config.h fix to gcc47/libsupc++.

Summary of changes:
 gnu/lib/gcc47/Makefile.inc       |  2 ++
 gnu/lib/gcc47/libsupc++/Makefile | 12 +++++++++---
 2 files changed, 11 insertions(+), 3 deletions(-)

http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/ab75162ef72c993d0d4a8270d3c0d330c0fb393a


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