configure.inc: add various missing quotations

...so that for example PATH elements including spaces won't cause
trouble.

Signed-off-by: Rob Browning <rlb@defaultvalue.org>
Tested-by: Rob Browning <rlb@defaultvalue.org>

diff --git a/config/configure.inc b/config/configure.inc
index df5909a5e1a9af00ccebdc697cdeb4fba10ff32a..e622a946eecc66cb7367c59e4235c04ae9a9e28d 100644 (file)
--- a/config/configure.inc
+++ b/config/configure.inc
@@ -528,7 +528,7 @@ EOF
 # acLookFor actually looks for a program, without setting anything.
 #
 acLookFor () {
-    path=${AC_PATH:-$ac_default_path}
+    path="${AC_PATH:-$ac_default_path}"
     case "X$1" in
     X-[rx]) __mode=$1
            shift
@@ -540,8 +540,8 @@ acLookFor () {
     for program in $*; do
        IFS=":"
        for x in $path; do
-           if [ $__mode $x/$program -a -f $x/$program ]; then
-               echo $x/$program
+           if [ $__mode "$x/$program" -a -f "$x/$program" ]; then
+               echo "$x/$program"
                break 2
            fi
        done
@@ -576,7 +576,7 @@ MF_PATH_INCLUDE () {
        AC_MAK $SYM
        AC_DEFINE PATH_$__sym \""$DEST"\"
        AC_SUB $__sym "$DEST"
-       eval CF_$SYM=$DEST
+       eval CF_$SYM="'$DEST'"
        return 0
     else
        #AC_SUB $__sym ''
@@ -793,7 +793,7 @@ AC_PROG_LN_S () {
 
     if [ "$DEST" ]; then
        rm -f "$__ac_tmpdir/b$$"
-       $DEST -s "$__ac_tmpdir/a$$" "$__ac_tmpdir/b$$"
+       "$DEST" -s "$__ac_tmpdir/a$$" "$__ac_tmpdir/b$$"
        if [ "`$AC_FIND_PROG $__ac_tmpdir/b$$ -type l -print`" ]; then
            TLOG " ($DEST)"
            echo "$DEST exists, and ln -s works"
@@ -823,7 +823,7 @@ AC_PROG_FIND () {
     if test -z "$AC_FIND_PROG"; then
        MF_PATH_INCLUDE FIND find
        rc=$?
-       AC_FIND_PROG=$DEST
+       AC_FIND_PROG="$DEST"
        return $rc
     fi
     return 0
@@ -838,7 +838,7 @@ AC_PROG_AWK () {
     if test -z "$AC_AWK_PROG"; then
        MF_PATH_INCLUDE AWK awk
        rc=$?
-       AC_AWK_PROG=$DEST
+       AC_AWK_PROG="$DEST"
        return $rc
     fi
     return 0
@@ -853,7 +853,7 @@ AC_PROG_SED () {
     if test -z "$AC_SED_PROG"; then
        MF_PATH_INCLUDE SED sed
        rc=$?
-       AC_SED_PROG=$DEST
+       AC_SED_PROG="$DEST"
        return $rc
     fi
     return 0
@@ -1145,7 +1145,7 @@ AC_PROG_INSTALL () {
        # BSD install or GNU install?  Let's find out...
        touch "$__ac_tmpdir/a$$"
 
-       $DEST "$__ac_tmpdir/a$$" "$__ac_tmpdir/b$$"
+       "$DEST" "$__ac_tmpdir/a$$" "$__ac_tmpdir/b$$"
 
        if test -r "$__ac_tmpdir/a$$"; then
            LOG " ($DEST)"
@@ -1245,7 +1245,7 @@ EOF
 #
 AC_PROG_CPP () {
     if [ "$AC_CPP_PROG" ]; then
-       DEST=$AC_CPP_PROG
+       DEST="$AC_CPP_PROG"
     else
        __ac_path="$AC_PATH"
        AC_PATH="/lib:/usr/lib:${__ac_path:-$ac_default_path}"
@@ -1257,11 +1257,11 @@ AC_PROG_CPP () {
     LOGN "Looking for cpp"
     if [ "$DEST" ]; then
        TLOGN " ($DEST)"
-       acCheckCPP $DEST "$CPPFLAGS" || \
-                acCheckCPP $DEST -traditional-cpp -E || \
-                acCheckCPP $DEST -E || \
-                acCheckCPP $DEST -traditional-cpp -pipe || \
-                acCheckCPP $DEST -pipe || fail=1
+       acCheckCPP "$DEST" "$CPPFLAGS" || \
+                acCheckCPP "$DEST" -traditional-cpp -E || \
+                acCheckCPP "$DEST" -E || \
+                acCheckCPP "$DEST" -traditional-cpp -pipe || \
+                acCheckCPP "$DEST" -pipe || fail=1
 
        if [ "$fail" ]; then
            AC_FAIL " (can't run cpp as a pipeline)"