Move the util/windows getopt to libkrb5support

Relocate the internal getopt() and getopt_long() code to util/support,
and build conditionally.  Put declarations in k5-platform.h.  Adjust
Windows build directives for src/clients.  Remove getopt-related #defines
from kinit.c, allowing kinit to use getopt_long() on all platforms.

[ghudson@mit.edu: fix some Windows build issues]

ticket: 8391

26 files changed, 114 insertions, 147 deletions

diff --git a/src/Makefile.in b/src/Makefile.in
index 6c5e939..8b9e790 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -511,7 +511,6 @@ install-windows::
 	copy windows\kfwlogon\$(OUTPRE)*.exe "$(KRB_INSTALL_DIR)\bin\."
 	copy windows\kfwlogon\$(OUTPRE)*.dll "$(KRB_INSTALL_DIR)\bin\."
 	$(INSTALLDBGSYMS) windows\kfwlogon\$(OUTPRE)*.pdb "$(KRB_INSTALL_DIR)\bin\."
-	copy util\windows\$(OUTPRE)*.lib $(KRB_INSTALL_DIR)\lib\."
 	copy util\wshelper\$(OUTPRE)$(DLIB).lib "$(KRB_INSTALL_DIR)\lib\."
 	copy util\wshelper\$(OUTPRE)$(DLIB).dll "$(KRB_INSTALL_DIR)\bin\."
 	$(INSTALLDBGSYMS) util\wshelper\$(OUTPRE)$(DLIB).pdb "$(KRB_INSTALL_DIR)\bin\."
@@ -635,11 +634,10 @@ BSDFILES = \
 	lib/krb5/krb/strftime.c \
 	lib/krb5/krb/strptime.c \
 	slave/kpropd_rpc.c \
+	util/support/getopt.c \
+	util/support/getopt_long.c \
 	util/support/mkstemp.c \
-	util/support/strlcpy.c \
-	util/windows/getopt.c \
-	util/windows/getopt.h \
-	util/windows/getopt_long.c
+	util/support/strlcpy.c
 
 OTHEREXCLUDES = \
 	include/iprop.h \
diff --git a/src/clients/kcpytkt/Makefile.in b/src/clients/kcpytkt/Makefile.in
index ea73514..8b70201 100644
--- a/src/clients/kcpytkt/Makefile.in
+++ b/src/clients/kcpytkt/Makefile.in
@@ -18,7 +18,7 @@ all-mac::
 kcpytkt: kcpytkt.o $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ kcpytkt.o $(KRB5_BASE_LIBS)
 
-##WIN32##$(KCPYTKT): $(OUTPRE)kcpytkt.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KCPYTKT): $(OUTPRE)kcpytkt.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) /out:$@ $**
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/kcpytkt/kcpytkt.c b/src/clients/kcpytkt/kcpytkt.c
index 90b260b..47147cd 100644
--- a/src/clients/kcpytkt/kcpytkt.c
+++ b/src/clients/kcpytkt/kcpytkt.c
@@ -2,14 +2,9 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include <string.h>
 #include <krb5.h>
-
-extern int optind;
-extern char *optarg;
+#include "k5-platform.h"
 
 static char *prog;
 
diff --git a/src/clients/kdeltkt/Makefile.in b/src/clients/kdeltkt/Makefile.in
index e140b7b..529592a 100644
--- a/src/clients/kdeltkt/Makefile.in
+++ b/src/clients/kdeltkt/Makefile.in
@@ -18,7 +18,7 @@ all-mac::
 kdeltkt: kdeltkt.o $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ kdeltkt.o $(KRB5_BASE_LIBS)
 
-##WIN32##$(KDELTKT): $(OUTPRE)kdeltkt.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KDELTKT): $(OUTPRE)kdeltkt.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) /out:$@ $**
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/kdeltkt/kdeltkt.c b/src/clients/kdeltkt/kdeltkt.c
index 2f09c9d..9c7a549 100644
--- a/src/clients/kdeltkt/kdeltkt.c
+++ b/src/clients/kdeltkt/kdeltkt.c
@@ -2,14 +2,9 @@
 
 #include <stdio.h>
 #include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
 #include <string.h>
 #include <krb5.h>
-
-extern int optind;
-extern char *optarg;
+#include "k5-platform.h"
 
 static char *prog;
 
diff --git a/src/clients/kdestroy/Makefile.in b/src/clients/kdestroy/Makefile.in
index f299352..05f0a44 100644
--- a/src/clients/kdestroy/Makefile.in
+++ b/src/clients/kdestroy/Makefile.in
@@ -21,7 +21,7 @@ all-unix:: kdestroy
 kdestroy: kdestroy.o $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ kdestroy.o $(KRB5_BASE_LIBS)
 
-##WIN32##$(KDESTROY): $(OUTPRE)kdestroy.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KDESTROY): $(OUTPRE)kdestroy.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) -out:$@ $**
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/kdestroy/kdestroy.c b/src/clients/kdestroy/kdestroy.c
index 299838f..410d6cf 100644
--- a/src/clients/kdestroy/kdestroy.c
+++ b/src/clients/kdestroy/kdestroy.c
@@ -30,12 +30,6 @@
 #include <locale.h>
 #include <string.h>
 #include <stdio.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef _WIN32
-#include <getopt.h>
-#endif
 
 #ifdef __STDC__
 #define BELL_CHAR '\a'
diff --git a/src/clients/kinit/Makefile.in b/src/clients/kinit/Makefile.in
index b1cd278..c7975c9 100644
--- a/src/clients/kinit/Makefile.in
+++ b/src/clients/kinit/Makefile.in
@@ -2,9 +2,7 @@ mydir=clients$(S)kinit
 BUILDTOP=$(REL)..$(S)..
 
 SRCS=kinit.c kinit_kdb.c
-
-##WIN32##LOCALINCLUDES=-I$(BUILDTOP)\util\windows
-##WIN32##DEFINES=-DGETOPT_LONG
+##WIN32##LOCALINCLUDES=-I$(BUILDTOP)\util\windows -I$(BUILDTOP)\util\support
 
 ##WIN32##VERSIONRC = $(BUILDTOP)\windows\version.rc
 ##WIN32##RCFLAGS=$(CPPFLAGS) -I$(top_srcdir) -D_WIN32 -DRES_ONLY
@@ -22,7 +20,7 @@ all-unix:: kinit
 kinit: kinit.o kinit_kdb.o $(KRB5_BASE_DEPLIBS) $(KADMSRV_DEPLIBS)
 	$(CC_LINK) -o $@ kinit.o kinit_kdb.o $(KADMSRV_LIBS) $(KRB5_BASE_LIBS)
 
-##WIN32##$(KINIT): $(OUTPRE)kinit.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.lib $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KINIT): $(OUTPRE)kinit.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) -out:$@ $** advapi32.lib
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/kinit/kinit.c b/src/clients/kinit/kinit.c
index c442c53..3653960 100644
--- a/src/clients/kinit/kinit.c
+++ b/src/clients/kinit/kinit.c
@@ -26,7 +26,7 @@
 
 #include "autoconf.h"
 #include <k5-int.h>
-#include "k5-platform.h"        /* for asprintf */
+#include "k5-platform.h"        /* for asprintf and getopt */
 #include <krb5.h>
 #include "extern.h"
 #include <locale.h>
@@ -36,23 +36,6 @@
 #include <errno.h>
 #include <com_err.h>
 
-#ifdef GETOPT_LONG
-#include <getopt.h>
-#else
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#ifdef sun
-/* SunOS4 unistd didn't declare these; okay to make unconditional?  */
-extern int optind;
-extern char *optarg;
-#endif /* sun */
-#else
-extern int optind;
-extern char *optarg;
-extern int getopt();
-#endif /* HAVE_UNISTD_H */
-#endif /* GETOPT_LONG */
-
 #ifndef _WIN32
 #define GET_PROGNAME(x) (strrchr((x), '/') ? strrchr((x), '/')+1 : (x))
 #else
@@ -140,7 +123,6 @@ struct k5_data
     krb5_boolean switch_to_cache;
 };
 
-#ifdef GETOPT_LONG
 /* if struct[2] == NULL, then long_getopt acts as if the short flag
    struct[3] was specified.  If struct[2] != NULL, then struct[3] is
    stored in *(struct[2]), the array index which was specified is
@@ -158,31 +140,19 @@ struct option long_options[] = {
     { NULL, 0, NULL, 0 }
 };
 
-#define GETOPT(argc, argv, str) getopt_long(argc, argv, str, long_options, 0)
-#else
-#define GETOPT(argc, argv, str) getopt(argc, argv, str)
-#endif
+const char *shopts = "r:fpFPn54aAVl:s:c:kit:T:RS:vX:CEI:";
 
 static void
 usage()
 {
 #define USAGE_BREAK "\n\t"
 
-#ifdef GETOPT_LONG
 #define USAGE_LONG_FORWARDABLE  " | --forwardable | --noforwardable"
 #define USAGE_LONG_PROXIABLE    " | --proxiable | --noproxiable"
 #define USAGE_LONG_ADDRESSES    " | --addresses | --noaddresses"
 #define USAGE_LONG_CANONICALIZE " | --canonicalize"
 #define USAGE_LONG_ENTERPRISE   " | --enterprise"
 #define USAGE_BREAK_LONG       USAGE_BREAK
-#else
-#define USAGE_LONG_FORWARDABLE  ""
-#define USAGE_LONG_PROXIABLE    ""
-#define USAGE_LONG_ADDRESSES    ""
-#define USAGE_LONG_CANONICALIZE ""
-#define USAGE_LONG_ENTERPRISE   ""
-#define USAGE_BREAK_LONG        ""
-#endif
 
     fprintf(stderr, "Usage: %s [-V] "
             "[-l lifetime] [-s start_time] "
@@ -288,8 +258,7 @@ parse_options(argc, argv, opts)
     int errflg = 0;
     int i;
 
-    while ((i = GETOPT(argc, argv,
-                       "r:fpFPn54aAVl:s:c:kit:T:RS:vX:CEI:")) != -1) {
+    while ((i = getopt_long(argc, argv, shopts, long_options, 0)) != -1) {
         switch (i) {
         case 'V':
             opts->verbose = 1;
diff --git a/src/clients/klist/Makefile.in b/src/clients/klist/Makefile.in
index 3cdbb86..79255f2 100644
--- a/src/clients/klist/Makefile.in
+++ b/src/clients/klist/Makefile.in
@@ -21,7 +21,7 @@ all-unix:: klist
 klist: klist.o $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ klist.o $(KRB5_BASE_LIBS)
 
-##WIN32##$(KLIST): $(OUTPRE)klist.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.lib $(SLIB) $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KLIST): $(OUTPRE)klist.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) -out:$@ $** ws2_32.lib $(SCLIB)
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/klist/klist.c b/src/clients/klist/klist.c
index 0f6ca8a..f8183dd 100644
--- a/src/clients/klist/klist.c
+++ b/src/clients/klist/klist.c
@@ -29,12 +29,6 @@
 #include <com_err.h>
 #include <locale.h>
 #include <stdlib.h>
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-#ifdef _WIN32
-#include <getopt.h>
-#endif
 #include <string.h>
 #include <stdio.h>
 #include <time.h>
diff --git a/src/clients/kswitch/Makefile.in b/src/clients/kswitch/Makefile.in
index b46fec6..e2a58dc 100644
--- a/src/clients/kswitch/Makefile.in
+++ b/src/clients/kswitch/Makefile.in
@@ -19,7 +19,7 @@ all-unix:: kswitch
 kswitch: kswitch.o $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ kswitch.o $(KRB5_BASE_LIBS)
 
-##WIN32##$(KSWITCH): $(OUTPRE)kswitch.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KSWITCH): $(OUTPRE)kswitch.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) -out:$@ $**
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/kvno/Makefile.in b/src/clients/kvno/Makefile.in
index 58519ae..6495080 100644
--- a/src/clients/kvno/Makefile.in
+++ b/src/clients/kvno/Makefile.in
@@ -22,7 +22,7 @@ all-unix:: kvno
 kvno: kvno.o $(KRB5_BASE_DEPLIBS)
 	$(CC_LINK) -o $@ kvno.o $(KRB5_BASE_LIBS)
 
-##WIN32##$(KVNO): $(OUTPRE)kvno.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj $(KLIB) $(CLIB) $(EXERES)
+##WIN32##$(KVNO): $(OUTPRE)kvno.obj $(SLIB) $(KLIB) $(CLIB) $(EXERES)
 ##WIN32##	link $(EXE_LINKOPTS) /out:$@ $**
 ##WIN32##	$(_VC_MANIFEST_EMBED_EXE)
 
diff --git a/src/clients/kvno/kvno.c b/src/clients/kvno/kvno.c
index 377d4f3..80bee59 100644
--- a/src/clients/kvno/kvno.c
+++ b/src/clients/kvno/kvno.c
@@ -30,10 +30,6 @@
 #ifdef HAVE_UNISTD_H
 #include <unistd.h>
 #endif
-#ifdef _WIN32
-#include <getopt.h>
-#endif
-
 #include <string.h>
 
 extern int optind;
diff --git a/src/configure.in b/src/configure.in
index 605b0c0..8216045 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -145,6 +145,26 @@ EXTRA_SUPPORT_SYMS="$EXTRA_SUPPORT_SYMS krb5int_strlcpy krb5int_strlcat"])
 AC_SUBST(STRLCPY_OBJ)
 AC_SUBST(STRLCPY_ST_OBJ)
 
+AC_CHECK_FUNC(getopt,
+[GETOPT_ST_OBJ=
+GETOPT_OBJ=
+AC_DEFINE(HAVE_GETOPT, 1, [Define if system getopt should be used.])],
+[GETOPT_ST_OBJ='getopt.o'
+GETOPT_OBJ='$(OUTPRE)getopt.$(OBJEXT)'
+EXTRA_SUPPORT_SYMS="$EXTRA_SUPPORT_SYMS k5_optind k5_optarg k5_opterr k5_optopt k5_getopt"])
+AC_SUBST(GETOPT_OBJ)
+AC_SUBST(GETOPT_ST_OBJ)
+
+AC_CHECK_FUNC(getopt_long,
+[GETOPT_LONG_ST_OBJ=
+GETOPT_LONG_OBJ=
+AC_DEFINE(HAVE_GETOPT_LONG, 1, [Define if system getopt_long should be used.])],
+[GETOPT_LONG_ST_OBJ='getopt_long.o'
+GETOPT_LONG_OBJ='$(OUTPRE)getopt_long.$(OBJEXT)'
+EXTRA_SUPPORT_SYMS="$EXTRA_SUPPORT_SYMS k5_getopt_long"])
+AC_SUBST(GETOPT_LONG_OBJ)
+AC_SUBST(GETOPT_LONG_ST_OBJ)
+
 AC_CHECK_FUNC(fnmatch,
 [FNMATCH_ST_OBJ=
 FNMATCH_OBJ=],
diff --git a/src/include/k5-platform.h b/src/include/k5-platform.h
index cff7dc3..994f463 100644
--- a/src/include/k5-platform.h
+++ b/src/include/k5-platform.h
@@ -63,6 +63,10 @@
 #include <fnmatch.h>
 #endif
 
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
 #ifdef _WIN32
 #define CAN_COPY_VA_LIST
 #endif
@@ -1060,4 +1064,39 @@ int k5_path_isabs(const char *path);
 #endif
 #define N_(s) s
 
+#if !defined(HAVE_GETOPT) || !defined(HAVE_UNISTD_H)
+extern int k5_opterr;
+extern int k5_optind;
+extern int k5_optopt;
+extern char *k5_optarg;
+#define opterr k5_opterr
+#define optind k5_optind
+#define optopt k5_optopt
+#define optarg k5_optarg
+
+extern int k5_getopt(int nargc, char * const nargv[], const char *ostr);
+#define getopt k5_getopt
+#endif /* HAVE_GETOPT */
+
+#ifdef HAVE_GETOPT_LONG
+#include <getopt.h>
+#else
+
+struct option
+{
+  const char *name;
+  int has_arg;
+  int *flag;
+  int val;
+};
+
+#define no_argument       0
+#define required_argument 1
+#define optional_argument 2
+
+extern int k5_getopt_long(int nargc, char **nargv, char *options,
+                          struct option *long_options, int *index);
+#define getopt_long k5_getopt_long
+#endif /* HAVE_GETOPT_LONG */
+
 #endif /* K5_PLATFORM_H */
diff --git a/src/util/support/Makefile.in b/src/util/support/Makefile.in
index 5d38b03..d5da898 100644
--- a/src/util/support/Makefile.in
+++ b/src/util/support/Makefile.in
@@ -43,6 +43,16 @@ PRINTF_OBJ= @PRINTF_OBJ@
 ##DOS##PRINTF_ST_OBJ= printf.o
 ##DOS##PRINTF_OBJ= $(OUTPRE)printf.$(OBJEXT)
 
+GETOPT_ST_OBJ= @GETOPT_ST_OBJ@
+GETOPT_OBJ= @GETOPT_OBJ@
+##DOS##GETOPT_ST_OBJ= getopt.o
+##DOS##GETOPT_OBJ= $(OUTPRE)getopt.$(OBJEXT)
+
+GETOPT_LONG_ST_OBJ= @GETOPT_LONG_ST_OBJ@
+GETOPT_LONG_OBJ= @GETOPT_LONG_OBJ@
+##DOS##GETOPT_LONG_ST_OBJ= getopt_long.o
+##DOS##GETOPT_LONG_OBJ= $(OUTPRE)getopt_long.$(OBJEXT)
+
 IPC_ST_OBJ=
 IPC_OBJ=
 ##DOS##IPC_ST_OBJ= ipc_stream.o
@@ -78,7 +88,9 @@ STLIBOBJS= \
 	$(STRLCPY_ST_OBJ) \
 	$(FNMATCH_ST_OBJ) \
 	$(PRINTF_ST_OBJ) \
-	$(MKSTEMP_ST_OBJ)
+	$(MKSTEMP_ST_OBJ) \
+	$(GETOPT_ST_OBJ) \
+	$(GETOPT_LONG_ST_OBJ)
 
 LIBOBJS= \
 	$(OUTPRE)threads.$(OBJEXT) \
@@ -101,7 +113,9 @@ LIBOBJS= \
 	$(STRLCPY_OBJ) \
 	$(FNMATCH_OBJ) \
 	$(PRINTF_OBJ) \
-	$(MKSTEMP_OBJ)
+	$(MKSTEMP_OBJ) \
+	$(GETOPT_OBJ) \
+	$(GETOPT_LONG_OBJ)
 
 SRCS=\
 	$(srcdir)/threads.c \
@@ -128,7 +142,9 @@ SRCS=\
 	$(srcdir)/json.c \
 	$(srcdir)/bcmp.c \
 	$(srcdir)/strerror_r.c \
-	$(srcdir)/t_utf8.c
+	$(srcdir)/t_utf8.c \
+	$(srcdir)/getopt.c \
+	$(srcdir)/getopt_long.c
 
 SHLIB_EXPDEPS =
 # Add -lm if dumping thread stats, for sqrt.
@@ -156,6 +172,7 @@ SHLIB_EXPORT_FILE=libkrb5support.exports
 
 EXTRA_SUPPORT_SYMS= @EXTRA_SUPPORT_SYMS@
 ##DOS##EXTRA_SUPPORT_SYMS= krb5int_mkstemp krb5int_strlcpy krb5int_strlcat \
+##DOS##		k5_optind k5_optarg k5_opterr k5_optopt k5_getopt k5_getopt_long \
 ##DOS##		krb5int_vasprintf krb5int_asprintf krb5int_gettimeofday $(IPC_SYMS)
 
 ##DOS##!if 0
diff --git a/src/util/support/deps b/src/util/support/deps
index b27c97d..4dff014 100644
--- a/src/util/support/deps
+++ b/src/util/support/deps
@@ -84,3 +84,9 @@ strerror_r.so strerror_r.po $(OUTPRE)strerror_r.$(OBJEXT): \
 t_utf8.so t_utf8.po $(OUTPRE)t_utf8.$(OBJEXT): $(BUILDTOP)/include/autoconf.h \
   $(top_srcdir)/include/k5-platform.h $(top_srcdir)/include/k5-thread.h \
   $(top_srcdir)/include/k5-utf8.h t_utf8.c
+getopt.so getopt.po $(OUTPRE)getopt.$(OBJEXT): $(BUILDTOP)/include/autoconf.h \
+  $(top_srcdir)/include/k5-platform.h $(top_srcdir)/include/k5-thread.h \
+  getopt.c
+getopt_long.so getopt_long.po $(OUTPRE)getopt_long.$(OBJEXT): \
+  $(BUILDTOP)/include/autoconf.h $(top_srcdir)/include/k5-platform.h \
+  $(top_srcdir)/include/k5-thread.h getopt_long.c
diff --git a/src/util/windows/getopt.c b/src/util/support/getopt.c
index 4f9f062..44cda68 100644
--- a/src/util/windows/getopt.c
+++ b/src/util/support/getopt.c
@@ -34,6 +34,7 @@
  * SUCH DAMAGE.
  */
 
+#if !defined(HAVE_GETOPT) || !defined(HAVE_UNISTD_H)
 #if 0
 static char sccsid[] = "@(#)getopt.c	8.3 (Berkeley) 4/27/95";
 #endif
@@ -42,19 +43,14 @@ static char sccsid[] = "@(#)getopt.c	8.3 (Berkeley) 4/27/95";
 #include <errno.h>
 #include <stdio.h>
 #include <string.h>
+#include "k5-platform.h"
 
 #define __P(x) x
 #define _DIAGASSERT(x) assert(x)
 
-#ifdef __weak_alias
-__weak_alias(getopt,_getopt);
-#endif
-
-
 int	opterr = 1,		/* if error message should be printed */
 	optind = 1,		/* index into parent argv vector */
-	optopt,			/* character checked for validity */
-	optreset;		/* reset getopt */
+	optopt;			/* character checked for validity */
 char	*optarg;		/* argument associated with option */
 
 static char * _progname __P((char *));
@@ -98,8 +94,7 @@ getopt(nargc, nargv, ostr)
 	_DIAGASSERT(nargv != NULL);
 	_DIAGASSERT(ostr != NULL);
 
-	if (optreset || !*place) {		/* update scanning pointer */
-		optreset = 0;
+	if (!*place) {		/* update scanning pointer */
 		if (optind >= nargc || *(place = nargv[optind]) != '-') {
 			place = EMSG;
 			return (-1);
@@ -151,3 +146,4 @@ getopt(nargc, nargv, ostr)
 	}
 	return (optopt);			/* dump back option letter */
 }
+#endif /* !defined(HAVE_GETOPT) || !defined(HAVE_UNISTD_H) */
diff --git a/src/util/windows/getopt_long.c b/src/util/support/getopt_long.c
index 5002804..1b508a1 100644
--- a/src/util/windows/getopt_long.c
+++ b/src/util/support/getopt_long.c
@@ -31,18 +31,13 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
+#ifndef HAVE_GETOPT_LONG
 #include <assert.h>
 #include <errno.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include "getopt.h"
-
-extern int	  opterr;	/* if error message should be printed */
-extern int	  optind;	/* index into parent argv vector */
-extern int	  optopt;	/* character checked for validity */
-extern int	  optreset;	/* reset getopt */
-extern char *optarg;	/* argument associated with option */
+#include "k5-platform.h"
 
 #define __P(x) x
 #define _DIAGASSERT(x) assert(x)
@@ -86,8 +81,7 @@ getopt_internal(nargc, nargv, ostr)
 	_DIAGASSERT(nargv != NULL);
 	_DIAGASSERT(ostr != NULL);
 
-	if (optreset || !*place) {		/* update scanning pointer */
-		optreset = 0;
+	if (!*place) {		/* update scanning pointer */
 		if (optind >= nargc || *(place = nargv[optind]) != '-') {
 			place = EMSG;
 			return (-1);
@@ -235,3 +229,4 @@ getopt_long(nargc, nargv, options, long_options, index)
 	}
 	return(retval);
 }
+#endif /* not HAVE_GETOPT_LONG */
diff --git a/src/util/windows/Makefile.in b/src/util/windows/Makefile.in
index f857c46..65b323c 100644
--- a/src/util/windows/Makefile.in
+++ b/src/util/windows/Makefile.in
@@ -1,15 +1,11 @@
 BUILDTOP = ..\..
 
-all-windows:: $(OUTPRE)libecho.exe $(OUTPRE)getopt.lib
+all-windows:: $(OUTPRE)libecho.exe
 
 $(OUTPRE)libecho.exe: $(OUTPRE)libecho.obj
 	link -out:$@ $** $(SCLIB)
 	$(_VC_MANIFEST_EMBED_EXE)
 	
-
-$(OUTPRE)getopt.lib: $(OUTPRE)getopt.obj $(OUTPRE)getopt_long.obj
-	lib -out:$@ $**
-
 install-windows::
 
 clean-windows::
diff --git a/src/util/windows/getopt.h b/src/util/windows/getopt.h
deleted file mode 100644
index 8832dbc..0000000
--- a/src/util/windows/getopt.h
+++ /dev/null
@@ -1,34 +0,0 @@
-/* -*- mode: c; c-file-style: "bsd"; indent-tabs-mode: t -*- */
-#ifndef __GETOPT_H__
-#define __GETOPT_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-extern int opterr;		/* if error message should be printed */
-extern int optind;		/* index into parent argv vector */
-extern int optopt;		/* character checked for validity */
-extern int optreset;		/* reset getopt */
-extern char *optarg;		/* argument associated with option */
-
-struct option
-{
-  const char *name;
-  int has_arg;
-  int *flag;
-  int val;
-};
-
-#define no_argument       0
-#define required_argument 1
-#define optional_argument 2
-
-int getopt(int, char**, char*);
-int getopt_long(int, char**, char*, struct option*, int*);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* __GETOPT_H__ */
diff --git a/src/windows/installer/wix/files.wxi b/src/windows/installer/wix/files.wxi
index ee18251..9194caf 100644
--- a/src/windows/installer/wix/files.wxi
+++ b/src/windows/installer/wix/files.wxi
@@ -418,7 +418,6 @@
                     <Directory Id="dirlib_i386" Name="i386" FileSource="$(var.LibDir)">
                         <Component Win64="$(var.Win64)" Id="cmp_dirlib_i386" Guid="CFEE3ED4-92D4-49e1-BB78-8BCBC60C3E57" DiskId="1">
                             <File Id="fil_comerr32_lib" Name="comerr32.lib" />
-                            <File Id="fil_getopt_32_lib" Name="getopt.lib" />
                             <File Id="fil_gssapi32_lib" Name="gssapi32.lib" />
                             <File Id="fil_krb5_32_lib" Name="krb5_32.lib" KeyPath="yes" />
                             <File Id="fil_krbcc32_lib" Name="krbcc32.lib" />
@@ -432,7 +431,6 @@
                     <Directory Id="dirlib_amd64" Name="amd64" FileSource="$(var.LibDir)">
                         <Component Win64="$(var.Win64)" Id="cmp_dirlib_amd64" Guid="F9A54201-FFD6-4a45-B021-276D9F6C40A2" DiskId="1">
                             <File Id="fil_comerr64_lib" Name="comerr64.lib" />
-                            <File Id="fil_getopt_64_lib" Name="getopt.lib" />
                             <File Id="fil_gssapi64_lib" Name="gssapi64.lib" />
                             <File Id="fil_krb5_64_lib" Name="krb5_64.lib" KeyPath="yes" />
                             <File Id="fil_krbcc64_lib" Name="krbcc64.lib" />
diff --git a/src/windows/ms2mit/Makefile.in b/src/windows/ms2mit/Makefile.in
index 59d5e7f..9af69ce 100644
--- a/src/windows/ms2mit/Makefile.in
+++ b/src/windows/ms2mit/Makefile.in
@@ -24,11 +24,11 @@ $(MIT2MSRES): $(VERSIONRC)
 all-windows:: $(MS2MIT) $(MIT2MS)
 
 $(MS2MIT): $(OUTPRE)ms2mit.obj $(MS2MITRES)
-    link $(EXE_LINKOPTS) -out:$@ $(OUTPRE)ms2mit.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj user32.lib advapi32.lib $(KLIB) $(CLIB) $(MS2MITRES)
+    link $(EXE_LINKOPTS) -out:$@ $(OUTPRE)ms2mit.obj $(SLIB) user32.lib advapi32.lib $(KLIB) $(CLIB) $(MS2MITRES)
     $(_VC_MANIFEST_EMBED_EXE)
 
 $(MIT2MS): $(OUTPRE)mit2ms.obj $(MIT2MSRES)
-    link $(EXE_LINKOPTS) -out:$@ $(OUTPRE)mit2ms.obj $(BUILDTOP)\util\windows\$(OUTPRE)getopt.obj user32.lib advapi32.lib $(KLIB) $(CLIB) $(MIT2MSRES)
+    link $(EXE_LINKOPTS) -out:$@ $(OUTPRE)mit2ms.obj $(SLIB) user32.lib advapi32.lib $(KLIB) $(CLIB) $(MIT2MSRES)
     $(_VC_MANIFEST_EMBED_EXE)
 
 install::
diff --git a/src/windows/ms2mit/mit2ms.c b/src/windows/ms2mit/mit2ms.c
index 5dc057e..24153ce 100644
--- a/src/windows/ms2mit/mit2ms.c
+++ b/src/windows/ms2mit/mit2ms.c
@@ -26,9 +26,7 @@
 #include "krb5.h"
 #include <stdio.h>
 #include <string.h>
-
-extern int optind;
-extern char *optarg;
+#include "k5-platform.h"
 
 static char *prog;
 
diff --git a/src/windows/ms2mit/ms2mit.c b/src/windows/ms2mit/ms2mit.c
index ebc9abd..c332503 100644
--- a/src/windows/ms2mit/ms2mit.c
+++ b/src/windows/ms2mit/ms2mit.c
@@ -29,9 +29,6 @@
 #include <string.h>
 #include <time.h>
 
-extern int optind;
-extern char *optarg;
-
 static char *prog;
 
 static void