If CPP was inherited from environment, don't use NON_GNU_CPP.
(NON_GNU_CC): Likewise.
(handling with_gcc): Use explicit if in the `no' case.
(cc_specified): New variable; if set, don't use NON_GNU_CC.
[
#### Choose a compiler.
+if [ "x$CC" = x ]
+then cc_specified=1
+fi
+
case ${with_gcc} in
"yes" ) CC="gcc" GCC=1 ;;
- "no" ) CC=${CC:-"cc"} ;;
+ "no" )
+ if [ "x$CC" = x ]
+ then true;
+ else CC=cc;
+ fi
+ ;;
* )
] AC_PROG_CC [
esac
#### Some systems specify a CPP to use unless we are using GCC.
#### Now that we know whether we are using GCC, we can decide whether
#### to use that one.
-if [ "x$NON_GNU_CPP" = x ] || [ x$GCC = x1 ]
+if [ "x$NON_GNU_CPP" = x ] || [ x$GCC = x1 ] || [ "x$CPP" = x ]
then true
else
CPP="$NON_GNU_CPP"
#### Some systems specify a CC to use unless we are using GCC.
#### Now that we know whether we are using GCC, we can decide whether
#### to use that one.
-if [ x$NON_GNU_CC = x ] || [ x$GCC = x1 ]
+if [ "x$NON_GNU_CC" = x ] || [ x$GCC = x1 ] || [ x$cc_specified = x1 ]
then true
else
- CC=$NON_GNU_CC
+ CC="$NON_GNU_CC"
fi
#### Some other nice autoconf tests. If you add a test here which