* configure.in: Define EXECUTABLE_SUFFIX.
* dlltool.c: Include "dyn-string.h". Include <stdarg.h> based on
ANSI_PROTOTYPES, not __STDC__.
(outfile): Remove.
(gen_exp_file): Change uses of outfile to use alloca.
(make_one_lib_file, make_head, make_tail): Likewise.
(gen_lib_file): Likewise.
(look_for_prog): New static function.
(deduce_name): Rewrite to use look_for_prog.
(mcore_elf_gen_out_file): Use dyn_string_t rather than outfile.
* dllwrap.c: Don't include <stdio.h>, <errno.h>, <string.h>,
<stdlib.h>, or <unistd.h>. Include <sys/stat.h> and either
<stdarg.h> or <varargs.h>.
(driver_name): Initialize to NULL, not "gcc".
(dlltool_name): Initialize to NULL, not "dlltool".
(display, inform, look_for_prog, deduce_name): New static
functions.
(usage): Mention -mno-cygwin.
(OPTION_MNO_CYGWIN): Define.
(main): Handle -mno-cygwin. Deduce driver_name and dlltool_name.
* resrc.c (look_for_default): Make static. Remove unused local
path. Check using EXECUTABLE_SUFFIX.
(read_rc_file): Allocate enough space to hold EXECUTABLE_SUFFIX.
* Makefile.am: Rebuild dependencies.
(dllwrap_LDADD): Add $(INTLLIBS).
* configure, Makefile.in, config.in: Rebuild.
Alan Modra