Partial fix for vendor-cc-versus-gcc incompatibility on HPUX:

tglsfdc · tglsfdc · commit e791d860120c · 1998-12-13T20:05:16.000Z
prefer aCC as c++ compiler if hpux_cc is selected as template.
Doesn't solve the problem if you have g++ and not aCC, however...
diff --git a/src/template/hpux_cc b/src/template/hpux_cc
@@ -9,3 +9,5 @@ DLSUFFIX:.sl
 YFLAGS:-d
 YACC:
 CC:cc
+# Make aCC be first C++ compiler name tried...
+CCC:aCC
