Add support for -DOPENLDAP_FD_SETSIZE=N for use on Linux.

Works on BSD as well (equiv. to -DFD_SETSIZE=N).

acconfig.h

@@ -113,6 +113,19 @@
 #define vsprintf ber_pvt_vsprintf
 #endif
 
+#ifdef OPENLDAP_FD_SETSIZE
+	/* assume installer desires to enlarge fd_set */
+#ifdef HAVE_BITS_TYPES_H
+#include <bits/types.h>
+#endif
+#ifdef	__FD_SETSIZE
+#undef	__FD_SETSIZE
+#define	__FD_SETSIZE OPENLDAP_FD_SETSIZE
+#else
+#define	FD_SETSIZE OPENLDAP_FD_SETSIZE
+#endif
+#endif
+
 #include "ldap_cdefs.h"
 #include "ldap_features.h"
 

configure.in

@@ -847,6 +847,7 @@ AC_CHECK_HEADERS(	\
 	arpa/inet.h		\
 	arpa/nameser.h	\
 	assert.h		\
+	bits/types.h	\
 	conio.h			\
 	crypt.h			\
 	direct.h		\

include/portable.h.in

@@ -350,6 +350,9 @@
 /* Define if you have the <assert.h> header file.  */
 #undef HAVE_ASSERT_H
 
+/* Define if you have the <bits/types.h> header file.  */
+#undef HAVE_BITS_TYPES_H
+
 /* Define if you have the <conio.h> header file.  */
 #undef HAVE_CONIO_H
 
@@ -1022,6 +1025,9 @@
 /* define for Proxy Cache overlay */
 #undef SLAPD_OVER_PROXYCACHE
 
+/* define for Rewrite/Remap overlay */
+#undef SLAPD_OVER_RWM
+
 /* define to enable rewriting in back-ldap and back-meta */
 #undef ENABLE_REWRITE
 
@@ -1067,6 +1073,19 @@
 #define vsprintf ber_pvt_vsprintf
 #endif
 
+#ifdef OPENLDAP_FD_SETSIZE
+	/* assume installer desires to enlarge fd_set */
+#ifdef HAVE_BITS_TYPES_H
+#include <bits/types.h>
+#endif
+#ifdef	__FD_SETSIZE
+#undef	__FD_SETSIZE
+#define	__FD_SETSIZE OPENLDAP_FD_SETSIZE
+#else
+#define	FD_SETSIZE OPENLDAP_FD_SETSIZE
+#endif
+#endif
+
 #include "ldap_cdefs.h"
 #include "ldap_features.h"