A couple minor changes for building with a C compiler (gcc).
We use a C compiler on AIX and whenever HPSS is included.

These C++'isms crept into code recently.

There are other issues C++/C issues we need to fix before the release.


I was able to easily test this on linux by just editing
config/plaform.mk, replacing g++ with gcc near the top:
CC=/usr/bin/gcc
CC_IS_GCC=1
#CCFLAGS=
LDR=/usr/bin/gcc




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