Add makefile (which can be used on GNO or a modern system), and build scripts based on in.

Makefile

@@ -0,0 +1,75 @@
+SRCS = \
+	shell/hush.c \
+	shell/match.c \
+	shell/math.c \
+	shell/random.c \
+	shell/shell_common.c \
+	shell/glob.c \
+	coreutils/echo.c \
+	coreutils/test.c \
+	coreutils/test_ptr_hack.c \
+	libbb/xfuncs_printf.c \
+	libbb/xfuncs.c \
+	libbb/xgetcwd.c \
+	libbb/getopt32.c \
+	libbb/perror_msg.c \
+	libbb/xatonum.c \
+	libbb/u_signal_names.c \
+	libbb/ptr_to_globals.c \
+	libbb/default_error_retval.c \
+	libbb/xfunc_die.c \
+	libbb/safe_strncpy.c \
+	libbb/lineedit.c \
+	libbb/lineedit_ptr_hack.c \
+	libbb/platform.c \
+	libbb/endofname.c \
+	libbb/signals.c \
+	libbb/skip_whitespace.c \
+	libbb/wfopen.c \
+	libbb/verror_msg.c \
+	libbb/bb_strtonum.c \
+	libbb/time.c \
+	libbb/printable_string.c \
+	libbb/full_write.c \
+	libbb/bb_qsort.c \
+	libbb/xrealloc_vector.c \
+	libbb/copyfd.c \
+	libbb/read_key.c \
+	libbb/unicode.c \
+	libbb/safe_write.c \
+	libbb/read.c \
+	libbb/safe_gethostname.c \
+	libbb/get_line_from_file.c \
+	libbb/concat_path_file.c \
+	libbb/last_char_is.c \
+	libbb/safe_poll.c \
+	libbb/process_escape_sequence.c \
+	libbb/compare_string_array.c \
+	libbb/llist.c \
+	libbb/parse_mode.c \
+	libbb/messages.c \
+	libbb/appletlib.c \
+	libbb/get_last_path_component.c \
+	libbb/mempcpy.c \
+	libbb/vfork_and_run.c
+OBJS = $(SRCS:.c=.o)
+ROOTS = $(SRCS:.c=.root)
+
+INCLUDES = -I include -I shell -I libbb
+DEFINES = -Dhush_main=main -DNDEBUG
+
+OCC_FLAGS = -i -w -a0
+# Add $(OCC_FLAGS) to CFLAGS on dmake
+CFLAGS = $(null, $(OCC_FLAGS))
+
+PROG = hush
+
+$(PROG): $(OBJS)
+	$(CC) $(OBJS) -o $@
+
+%.o: %.c
+	$(CC) $(INCLUDES) $(DEFINES) $(CFLAGS) -c $< -o $@
+
+.PHONY: clean
+clean:
+	$(RM) $(OBJS) $(ROOTS) $(PROG)

build

@@ -1,57 +0,0 @@
-cc -std=c99 -funsigned-char \
--Wall -Wno-format-security -Wno-comment -o hush \
--Iinclude \
--Dhush_main=main -DNDEBUG  -D"BB_VER=KBUILD_STR(1.22.1)" -D"KBUILD_STR(s)=#s" \
-shell/hush.c \
-shell/match.c \
-shell/math.c \
-shell/random.c \
-shell/shell_common.c \
-shell/glob.c \
-coreutils/echo.c \
-coreutils/test.c \
-coreutils/test_ptr_hack.c \
-libbb/xfuncs_printf.c \
-libbb/xfuncs.c \
-libbb/xgetcwd.c \
-libbb/getopt32.c \
-libbb/perror_msg.c \
-libbb/xatonum.c \
-libbb/u_signal_names.c \
-libbb/ptr_to_globals.c \
-libbb/default_error_retval.c \
-libbb/xfunc_die.c \
-libbb/safe_strncpy.c \
-libbb/lineedit.c \
-libbb/lineedit_ptr_hack.c \
-libbb/platform.c \
-libbb/endofname.c \
-libbb/signals.c \
-libbb/skip_whitespace.c \
-libbb/wfopen.c \
-libbb/verror_msg.c \
-libbb/bb_strtonum.c \
-libbb/time.c \
-libbb/printable_string.c \
-libbb/full_write.c \
-libbb/bb_qsort.c \
-libbb/xrealloc_vector.c \
-libbb/copyfd.c \
-libbb/read_key.c \
-libbb/unicode.c \
-libbb/safe_write.c \
-libbb/read.c \
-libbb/safe_gethostname.c \
-libbb/get_line_from_file.c \
-libbb/concat_path_file.c \
-libbb/last_char_is.c \
-libbb/safe_poll.c \
-libbb/process_escape_sequence.c \
-libbb/compare_string_array.c \
-libbb/llist.c \
-libbb/parse_mode.c \
-libbb/messages.c \
-libbb/appletlib.c \
-libbb/get_last_path_component.c \
-libbb/mempcpy.c \
-libbb/vfork_and_run.c

build-gcc

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+# Make with appropriate flags for gcc or clang on modern *nix systems
+make CFLAGS="-std=c89 -funsigned-char -Wall -Wno-format-security -Wno-comment"

build-gs

@@ -0,0 +1 @@
+chtyp -l cc include/*.h coreutils/*.c libbb/*.c shell/*.c shell/*.h; make -i

include/busybox.h

@@ -5,6 +5,8 @@
 #ifndef BUSYBOX_H
 #define BUSYBOX_H 1
 
+#define BB_VER "1.22.1"
+
 #include "libbb.h"
 /* BB_DIR_foo and BB_SUID_bar constants: */
 #include "applet_metadata.h"