fi
output=$1
-rm -f $output.T
-
-# We used to exec > $output.T but apparently this has bugs.
-# Use a redirected subshell instead.
-(
+rm -f ${output}T
# Define TARGET_CPU_DEFAULT if the system wants one.
# This substitutes for lots of *.h files.
if [ "$TARGET_CPU_DEFAULT" != "" ]; then
- echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)"
+ echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T
fi
# The first entry in HEADERS may be auto-host.h or auto-build.h;
if [ -n "$HEADERS" ]; then
set $HEADERS; first=$1
case $first in auto-* )
- echo "#include \"$first\""
+ echo "#include \"$first\"" >> ${output}T
shift
HEADERS=$*
;;
esac
fi
+# Provide three core typedefs used by everything, if we are compiling
+# GCC. These used to be found in rtl.h and tree.h, but this is no
+# longer practical. Providing these in config.h/tconfig.h/hconfig.h
+# rather than system.h allows the typedefs to be used anywhere in GCC.
+case $output in
+ *config.h | *hconfig.h | *tconfig.h)
+ cat >> ${output}T <<EOF
+#ifdef IN_GCC
+/* Provide three core typedefs used by everything, if we are compiling
+ GCC. These used to be found in rtl.h and tree.h, but this is no
+ longer practical. Providing these here rather that system.h allows
+ the typedefs to be used everywhere within GCC. */
+struct rtx_def;
+typedef struct rtx_def *rtx;
+struct rtvec_def;
+typedef struct rtvec_def *rtvec;
+union tree_node;
+typedef union tree_node *tree;
+#endif
+#define GTY(x)
+EOF
+ ;;
+esac
+
if [ -n "$HEADERS" ]; then
- echo '#ifdef IN_GCC'
+ echo '#ifdef IN_GCC' >> ${output}T
for file in $HEADERS; do
- echo "# include \"$file\""
+ echo "# include \"$file\"" >> ${output}T
done
- echo '#endif'
+ echo '#endif' >> ${output}T
fi
for def in $DEFINES; do
- echo "#ifndef $def" | sed 's/=.*//'
- echo "# define $def" | sed 's/=/ /'
- echo "#endif"
+ echo "#ifndef $def" | sed 's/=.*//' >> ${output}T
+ echo "# define $def" | sed 's/=/ /' >> ${output}T
+ echo "#endif" >> ${output}T
done
# If this is tm_p.h, include tm-preds.h unconditionally.
# If this is tconfig.h or hconfig.h, include no more files.
-# Otherwise, include insn-constants.h, insn-flags.h, and insn-codes.h,
-# but only if GENERATOR_FILE is not defined. (The last of those is
-# slated to be removed.)
+# Otherwise, include insn-constants.h and insn-flags.h,
+# but only if GENERATOR_FILE is not defined.
case $output in
*tm_p.h)
- echo "#include \"tm-preds.h\""
+ echo "#include \"tm-preds.h\"" >> ${output}T
;;
*tconfig.h | *hconfig.h)
;;
*)
- echo "#ifndef GENERATOR_FILE"
- echo "# include \"insn-constants.h\""
- echo "# include \"insn-codes.h\""
- echo "# include \"insn-flags.h\""
- echo "#endif"
+ cat >> ${output}T <<EOF
+#ifndef GENERATOR_FILE
+# include "insn-constants.h"
+# include "insn-flags.h"
+#endif
+EOF
;;
esac
-) > $output.T
-
# Avoid changing the actual file if possible.
-if [ -f $output ] && cmp $output.T $output >/dev/null 2>&1; then
+if [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then
echo $output is unchanged >&2
- rm -f $output.T
+ rm -f ${output}T
else
- mv -f $output.T $output
+ mv -f ${output}T $output
fi
# Touch a stamp file for Make's benefit.