diff --git a/include/bits/confname.h b/include/bits/confname.h
index 062caf7..556c487 100644
--- a/include/bits/confname.h
+++ b/include/bits/confname.h
@@ -43,6 +43,9 @@
 #define _SC_PHYS_PAGES	7	/* physical pages */
 #define _SC_GETPW_R_SIZE_MAX	8 /* passwd buffer size */
 #define _SC_GETGR_R_SIZE_MAX	9 /* group buffer size */
+#define _SC_AVPHYS_PAGES	10	/* available physical pages */
+#define _SC_NPROCESSORS_CONF	11
+#define _SC_NPROCESSORS_ONLN	12
 
 #if (defined __USE_POSIX2 || defined __USE_UNIX98 \
      || defined __USE_FILE_OFFSET64 || defined __USE_LARGEFILE64 \
diff --git a/include/sys/MISCFILES b/include/sys/MISCFILES
index bce4098..ca89b79 100644
--- a/include/sys/MISCFILES
+++ b/include/sys/MISCFILES
@@ -29,6 +29,7 @@ MISCFILES = MISCFILES \
 	statfs.h \
 	statvfs.h \
 	syscall.h \
+	sysinfo.h \
 	syslog.h \
 	sysmacros.h \
 	systeminfo.h \
diff --git a/include/sys/sysinfo.h b/include/sys/sysinfo.h
new file mode 100644
index 0000000..a9928d0
--- /dev/null
+++ b/include/sys/sysinfo.h
@@ -0,0 +1,19 @@
+#ifndef _SYS_SYSINFO_H
+#define _SYS_SYSINFO_H
+
+/* Return number of configured processors.  */
+extern int get_nprocs_conf (void);
+
+/* Return number of available processors.  */
+extern int get_nprocs (void);
+
+/* Return number of physical pages of memory in the system.  */
+extern long int get_phys_pages (void);
+
+/* Return number of available physical pages of memory in the system.  */
+extern long int get_avphys_pages (void);
+
+/* Return maximum number of processes this real user ID can have.  */
+extern long int get_child_max (void);
+
+#endif /* sys/sysinfo.h */
\ No newline at end of file
diff --git a/posix/sysconf.c b/posix/sysconf.c
index d0653f8..4385d06 100644
--- a/posix/sysconf.c
+++ b/posix/sysconf.c
@@ -12,9 +12,12 @@
 #include <errno.h>
 #include <limits.h>
 #include <time.h>
+#include <sys/sysinfo.h>
 #include "lib.h"
 
+#ifndef UNLIMITED
 #define UNLIMITED	(0x7fffffffL)
+#endif
 
 long
 __sysconf (int var)
@@ -31,7 +34,7 @@ __sysconf (int var)
 
 	switch(var) {
 	case _SC_LAST:
-		return 4;
+		return 12;
 	case _SC_MEMR_MAX:
 		return UNLIMITED; /* not true for TOS < 1.4 :-( */
 	case _SC_ARG_MAX:
@@ -42,11 +45,23 @@ __sysconf (int var)
 	case _SC_NGROUPS_MAX:
 		return NGROUPS_MAX;
 	case _SC_CHILD_MAX:
-		return UNLIMITED; /* good 'ol TOS :-) */
+		return get_child_max();
 	case _SC_CLK_TCK:
 		return CLOCKS_PER_SEC;
 	case _SC_PAGE_SIZE:
 		return getpagesize();
+    case _SC_GETPW_R_SIZE_MAX:
+      return -1;
+    case _SC_GETGR_R_SIZE_MAX:
+      return -1;
+    case _SC_PHYS_PAGES:
+      return get_phys_pages();
+    case _SC_AVPHYS_PAGES:
+      return get_avphys_pages();
+    case _SC_NPROCESSORS_CONF:
+      return get_nprocs_conf();
+    case _SC_NPROCESSORS_ONLN:
+      return get_nprocs ();
 	default:
 		return -1;
 	}
diff --git a/unix/SRCFILES b/unix/SRCFILES
index 5bd9e1b..4228cb9 100644
--- a/unix/SRCFILES
+++ b/unix/SRCFILES
@@ -47,6 +47,7 @@ SRCFILES = \
 	getrlimit.c \
 	getrusage.c \
 	getsid.c \
+	getsysstat.c \
 	gettimeofday.c \
 	getuid.c \
 	gtty.c \
diff --git a/unix/getsysstat.c b/unix/getsysstat.c
new file mode 100644
index 0000000..e502485
--- /dev/null
+++ b/unix/getsysstat.c
@@ -0,0 +1,84 @@
+
+#include <unistd.h>
+#include <bits/local_lim.h>
+#include <mint/osbind.h>
+#include <mint/sysvars.h>
+
+#include <sys/sysinfo.h>
+
+#ifndef FALSE
+#define FALSE   0
+#endif
+#ifndef TRUE
+#define TRUE    1
+#endif
+#ifndef UNLIMITED
+#define UNLIMITED	(0x7fffffffL)
+#endif
+
+static int is_there_altram(void){
+    if(Supexec(*ramtop) > 0x01000000L){
+        return TRUE;
+    }
+    return FALSE;
+}
+
+static unsigned long int get_altram_value(void){
+    if(is_there_altram()){
+        return (int)((Supexec(*ramtop) - 0x01000000L));
+    }
+    return 0;
+}
+
+static unsigned long int get_stram_value(void){
+    return Supexec(*phystop);
+}
+
+static unsigned long int get_available_altram(void){
+    if(is_there_altram()){
+        return Mxalloc(-1, 1);
+    }
+    return 0;
+}
+
+static unsigned long int get_available_stram(void){
+    return Mxalloc(-1, 0);
+}
+
+__typeof__(get_nprocs_conf) __get_nprocs_conf;
+int __get_nprocs_conf (void){
+    return 1;
+}
+weak_alias (__get_nprocs_conf, get_nprocs_conf)
+
+/* Return number of available processors.  */
+__typeof__(get_nprocs) __get_nprocs;
+int __get_nprocs (void){
+    return 1;
+}
+weak_alias (__get_nprocs, get_nprocs)
+
+/* Return number of physical pages of memory in the system.  */
+__typeof__(get_phys_pages) __get_phys_pages;
+long int __get_phys_pages (void){
+    return ((get_stram_value() + get_altram_value()) / getpagesize());
+}
+weak_alias (__get_phys_pages, get_phys_pages)
+
+/* Return number of available physical pages of memory in the system.  */
+__typeof__(get_avphys_pages) __get_avphys_pages;
+long int __get_avphys_pages (void){
+    return (get_available_stram() + get_available_altram()) / getpagesize();
+}
+weak_alias (__get_avphys_pages, get_avphys_pages)
+
+/* Return maximum number of processes this real user ID can have.  */
+__typeof__(get_child_max) __get_child_max;
+long int __get_child_max (void){
+#ifdef CHILD_MAX
+    return CHILD_MAX;
+#else
+    return UNLIMITED;
+#endif
+}
+weak_alias (__get_child_max, get_child_max)
\ No newline at end of file