-dnl Use SunStudio cc on Solaris.
-test -d /opt/solarisstudio12.3/bin && PATH=/opt/solarisstudio12.3/bin:$PATH
+dnl Use SunStudio cc, with -v, on Solaris if user didn't set CC.
+if test -z "$CC" -a -d /opt/solarisstudio12.3/bin; then
+ CC=/opt/solarisstudio12.3/bin/cc; export CC
+ ${CC} -V
+ CFLAGS="${CFLAGS:+$CFLAGS }-v"
+fi