Eliminate DECL_STRDUP check in favor of simple fix to <ac/string.h> header.

Add #undef and other protection of macros.

build/openldap.m4

@@ -626,25 +626,6 @@ if test $ol_cv_dcl_sys_errlist = no ; then
 fi
 ])dnl
 dnl
-dnl ====================================================================
-dnl Check to see if we should not declare strdup if we have it
-dnl
-AC_DEFUN([OL_DECL_STRDUP],
-[
-AC_MSG_CHECKING([strdup declaration])
-AC_CACHE_VAL(ol_cv_dcl_strdup,[
-	AC_TRY_COMPILE([
-#include <string.h> ],
-	[extern char *(strdup)();],
-	[ol_cv_dcl_strdup=yes],
-	[ol_cv_dcl_strdup=no])])
-AC_MSG_RESULT($ol_cv_dcl_strdup)
-if test $ol_cv_dcl_strdup = yes ; then
-	AC_DEFINE(DECL_STRDUP,1,
-		[define if you have strdup() but it's not declared])
-fi
-])dnl
-
 dnl ====================================================================
 dnl Early MIPS compilers (used in Ultrix 4.2) don't like
 dnl "int x; int *volatile a = &x; *a = 0;"

configure

@@ -11227,43 +11227,6 @@ fi
 
 
 
-echo $ac_n "checking strdup declaration""... $ac_c" 1>&6
-echo "configure:11232: checking strdup declaration" >&5
-if eval "test \"`echo '$''{'ol_cv_dcl_strdup'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  
-	cat > conftest.$ac_ext <<EOF
-#line 11238 "configure"
-#include "confdefs.h"
-
-#include <string.h> 
-int main() {
-extern char *(strdup)();
-; return 0; }
-EOF
-if { (eval echo configure:11246: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
-  rm -rf conftest*
-  ol_cv_dcl_strdup=yes
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  ol_cv_dcl_strdup=no
-fi
-rm -f conftest*
-fi
-
-echo "$ac_t""$ol_cv_dcl_strdup" 1>&6
-if test $ol_cv_dcl_strdup = yes ; then
-	cat >> confdefs.h <<\EOF
-#define DECL_STRDUP 1
-EOF
-
-fi
-
-
-
 if test "$ol_enable_debug" != no ; then
 	cat >> confdefs.h <<\EOF
 #define LDAP_DEBUG 1

configure.in

@@ -1600,10 +1600,6 @@ dnl ----------------------------------------------------------------
 # Check Configuration
 OL_SYS_ERRLIST
 
-dnl ----------------------------------------------------------------
-dnl Check our declaration of strdup()
-OL_DECL_STRDUP
-
 dnl ----------------------------------------------------------------
 dnl Sort out defines
 

include/ac/assert.h

@@ -12,6 +12,8 @@
 #ifndef _AC_ASSERT_H
 #define _AC_ASSERT_H
 
+#undef assert
+
 #ifdef LDAP_DEBUG
 
 #if defined( HAVE_ASSERT_H ) || defined( STDC_HEADERS )

include/ac/ctype.h

@@ -14,6 +14,9 @@
 
 #include <ctype.h>
 
+#undef TOUPPER
+#undef TOLOWER
+
 #ifdef C_UPPER_LOWER
 # define TOUPPER(c)	(islower(c) ? toupper(c) : (c))
 # define TOLOWER(c)	(isupper(c) ? tolower(c) : (c))

include/ac/signal.h

@@ -14,6 +14,7 @@
 
 #include <signal.h>
 
+#undef SIGNAL
 #ifdef HAVE_SIGSET
 #define SIGNAL sigset
 #else

include/ac/string.h

@@ -55,11 +55,9 @@ extern char *ldap_pvt_strdup( const char * s );
 #	undef strdup
 #	define strdup(s) ldap_pvt_strdup(s)
 #else
-#	ifdef DECL_STRDUP
 	/* some systems fail to declare strdup */
 	extern char *(strdup)();
 #endif
-#endif
 
 /*
  * some systems fail to declare strcasecmp() and strncasecmp()

include/ldap_pvt.h

@@ -44,9 +44,6 @@ ldap_pvt_gethostbyaddr_a LDAP_P((
 	struct hostent **result,
 	int *herrno_ptr ));
 
-LDAP_F( void )
-ldap_pvt_init_utils LDAP_P(( void ));
-
 LDAP_END_DECL
 
 #endif

include/portable.h.in

@@ -747,9 +747,6 @@
 /* define if you actually have sys_errlist in your libs */
 #undef HAVE_SYS_ERRLIST
 
-/* define if you have strdup() but it's not declared */
-#undef DECL_STRDUP
-
 /* begin of postamble */
 
 #ifdef HAVE_STDDEF_H