gss: move GSS pre-auth helpers to convenience lib

GSS pre-auth helpers do not belong in libgssapi, so move them to a separate
convenience library.

kuser/Makefile.am

@@ -30,6 +30,7 @@ kinit_LDADD = \
 	$(afs_lib) \
 	$(top_builddir)/lib/krb5/libkrb5.la \
 	$(top_builddir)/lib/gssapi/libgssapi.la \
+	$(top_builddir)/lib/gss_preauth/libgss_preauth.la \
 	$(top_builddir)/lib/ntlm/libheimntlm.la \
 	$(LIB_hcrypto) \
 	$(top_builddir)/lib/asn1/libasn1.la \

kuser/NTMakefile

@@ -31,7 +31,7 @@
 
 RELDIR=kuser
 
-intcflags=-I$(OBJ) -I$(SRC)\lib\gssapi -I$(OBJDIR)\lib\gssapi
+intcflags=-I$(OBJ) -I$(SRC)\lib\gssapi -I$(OBJDIR)\lib\gssapi -I$(OBJDIR)\lib\gss_preauth
 
 !include ../windows/NTMakefile.w32 
 
@@ -55,6 +55,7 @@ NOINSTPROGRAMS=\
 
 
 BINLIBS=\
+	$(LIBGSS_PREAUTH) \
 	$(LIBGSSAPI)	\
 	$(LIBHEIMDAL)	\
 	$(LIBHEIMNTLM)	\

kuser/kuser_locl.h

@@ -75,8 +75,8 @@
 #include <heimbase.h>
 
 #include <gssapi_mech.h>
-#include <gssapi/gssapi_preauth.h>
-#include <preauth/pa-private.h>
+#include <gss-preauth-protos.h>
+#include <gss-preauth-private.h>
 
 #if defined(HAVE_SYS_IOCTL_H) && SunOS != 40
 #include <sys/ioctl.h>