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+?RCS: $Id: shell.U,v 3.0 1993/08/18 12:10:10 ram Exp $
+?RCS: Copyright (c) 1991-1993, Raphael Manfredi
+?RCS: You may redistribute only under the terms of the Artistic Licence,
+?RCS: as specified in the README file that comes with the distribution.
+?RCS: You may reuse parts of this distribution only within the terms of
+?RCS: that same Artistic Licence; a copy of which may be found at the root
+?RCS: of the source tree for dist 3.0.
+?RCS: $Log: shell.U,v $
+?RCS: Revision 3.0 1993/08/18 12:10:10 ram
+?RCS: Baseline for dist 3.0 netwide release.
+?MAKE:cc: cat contains sysman +large Mcc Myread Guess Oldconfig Loc
+?MAKE: -pick add $@ %<
+?S: This variable holds the name of a command to execute a C compiler which
+?S: can resolve multiple global references that happen to have the same
+?S: name. Usual values are "cc", "Mcc", "cc -M", and "gcc".
+: see if we need a special compiler
+echo " "
+if usg; then
+ case "$cc" in
+ '') case "$Mcc" in
+ /*) dflt='Mcc';;
+ *) case "$large" in
+ -M*) dflt='cc';;
+ *) if $contains '\-M' $sysman/cc.1 >/dev/null 2>&1 ; then
+ if $contains '\-M' $sysman/cpp.1 >/dev/null 2>&1; then
+ dflt='cc'
+ else
+ dflt='cc -M'
+ fi
+ else
+ dflt='cc'
+ fi;;
+ esac;;
+ esac;;
+ *) dflt="$cc";;
+ esac
+ $cat <<'EOM'
+On some systems the default C compiler will not resolve multiple global
+references that happen to have the same name. On some such systems the "Mcc"
+command may be used to force these to be resolved. On other systems a "cc -M"
+command is required. (Note that the -M flag on other systems indicates a
+memory model to use!) If you have the Gnu C compiler, you might wish to use
+that instead.
+ rp="What command will force resolution on this system?"
+ . myread
+ cc="$ans"
+ case "$cc" in
+ '') dflt=cc;;
+ *) dflt="$cc";;
+ esac
+ rp="Use which C compiler?"
+ . myread
+ cc="$ans"
+case "$cc" in
+gcc*) cpp=`loc gcc-cpp $cpp $pth`;;