use tmpfile() and revert my previous changes... convert() belongs here
diff --git a/Makefile b/Makefile
index ed59deb..3141191 100644
--- a/Makefile
+++ b/Makefile
@@ -236,17 +236,18 @@
LIBBB = libbb
LIBBB_LIB = libbb.a
LIBBB_CSRC= ask_confirmation.c check_wildcard_match.c chomp.c \
-concat_path_file.c copy_file.c copy_file_chunk.c create_path.c daemon.c \
-deb_extract.c device_open.c error_msg.c error_msg_and_die.c find_mount_point.c \
-find_pid_by_name.c find_root_device.c full_read.c full_write.c \
-get_ar_headers.c get_console.c get_last_path_component.c get_line_from_file.c \
-gz_open.c human_readable.c inode_hash.c isdirectory.c kernel_version.c loop.c \
-mode_string.c module_syscalls.c mtab.c mtab_file.c my_getgrnam.c my_getgrgid.c \
-my_getpwnam.c my_getpwnamegid.c my_getpwuid.c parse_mode.c parse_number.c \
-perror_msg.c perror_msg_and_die.c print_file.c process_escape_sequence.c \
-recursive_action.c safe_read.c safe_strncpy.c seek_ared_file.c syscalls.c \
-syslog_msg_with_name.c time_string.c trim.c untar.c unzip.c vdprintf.c \
-verror_msg.c vperror_msg.c wfopen.c xfuncs.c xgetcwd.c xregcomp.c
+concat_path_file.c copy_file.c copy_file_chunk.c create_path.c \
+daemon.c deb_extract.c device_open.c error_msg.c error_msg_and_die.c \
+find_mount_point.c find_pid_by_name.c find_root_device.c full_read.c \
+full_write.c get_ar_headers.c get_console.c get_last_path_component.c \
+get_line_from_file.c gz_open.c human_readable.c inode_hash.c isdirectory.c \
+kernel_version.c loop.c mode_string.c module_syscalls.c mtab.c mtab_file.c \
+my_getgrnam.c my_getgrgid.c my_getpwnam.c my_getpwnamegid.c my_getpwuid.c \
+parse_mode.c parse_number.c perror_msg.c perror_msg_and_die.c print_file.c \
+process_escape_sequence.c recursive_action.c safe_read.c safe_strncpy.c \
+seek_ared_file.c syscalls.c syslog_msg_with_name.c time_string.c trim.c \
+untar.c unzip.c vdprintf.c verror_msg.c vperror_msg.c wfopen.c xfuncs.c \
+xgetcwd.c xregcomp.c
LIBBB_OBJS=$(patsubst %.c,$(LIBBB)/%.o, $(LIBBB_CSRC))
LIBBB_CFLAGS = -I$(LIBBB)