+dummy=dummy-$$
+trap 'rm -f $dummy.c $dummy.o $dummy.rel $dummy; exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script.
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,) echo "int dummy(){}" > $dummy.c
+ for c in cc gcc c89 ; do
+ ($c $dummy.c -c -o $dummy.o) >/dev/null 2>&1
+ if test $? = 0 ; then
+ CC_FOR_BUILD="$c"; break
+ fi
+ done
+ rm -f $dummy.c $dummy.o $dummy.rel
+ if test x"$CC_FOR_BUILD" = x ; then
+ CC_FOR_BUILD=no_compiler_found
+ fi
+ ;;
+ ,,*) CC_FOR_BUILD=$CC ;;
+ ,*,*) CC_FOR_BUILD=$HOST_CC ;;
+esac