gEDA-user: Confusing message of gschem's ./configure

[Karel Kulhavy]

When the libgeda is too old, it says

checking for LIBGEDA... configure: error: Cannot find libgeda (or libgeda.pc),
please install libgeda

although according to config.log, this happens:
configure:6362: checking for LIBGEDA
configure:6370: $PKG_CONFIG --exists --print-errors "libgeda >= $VERSION"
Requested 'libgeda >= 20061020' but version of libgeda is 20060123
configure:6373: $? = 1
configure:6388: $PKG_CONFIG --exists --print-errors "libgeda >= $VERSION"
Requested 'libgeda >= 20061020' but version of libgeda is 20060123
configure:6391: $? = 1
Requested 'libgeda >= 20061020' but version of libgeda is 20060123
configure:6434: error: Cannot find libgeda (or libgeda.pc), please install libge

It's not true that it cannot find libgeda, because it must have found libgeda
when it figured out libgeda is too old. It is also not true it cannot find
libgeda.pc:

clock at kestrel:~/geda-gschem-20061020$ pkg-config --list-all | grep geda
libgdgeda             libgdgeda - gEDA's hacked version of gd
libgeda               libgeda - gEDA/gaf's core library

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