diff --git a/src/backend/port/svr4/Makefile.inc b/src/backend/port/svr4/Makefile.inc
new file mode 100644
index 0000000000000000000000000000000000000000..f04a2bc2d0c621c94a01d619f674eb3d95d5a700
--- /dev/null
+++ b/src/backend/port/svr4/Makefile.inc
@@ -0,0 +1,20 @@
+#-------------------------------------------------------------------------
+#
+# Makefile.inc--
+# Makefile for port/svr4 (Intel x86/Intel SVR4 specific stuff)
+#
+# Copyright (c) 1994, Regents of the University of California
+#
+#
+# IDENTIFICATION
+# /usr/local/devel/pglite/cvs/src/backend/port/svr4/Makefile.inc,v 1.3 1995/03/21 06:51:21 andrew Exp
+#
+#-------------------------------------------------------------------------
+
+CFLAGS+= -DUSE_POSIX_TIME -DNEED_ISINF -DNEED_RUSAGE -DNO_EMPTY_STMTS
+
+LDADD+= -ll -ldl
+
+SUBSRCS+= port.c
+
+HEADERS+= machine.h port-protos.h rusagestub.h
diff --git a/src/backend/port/svr4/machine.h b/src/backend/port/svr4/machine.h
new file mode 100644
index 0000000000000000000000000000000000000000..fd1f22c8a93d73bcf02badd0b21b936eab5793a1
--- /dev/null
+++ b/src/backend/port/svr4/machine.h
@@ -0,0 +1,19 @@
+/*-------------------------------------------------------------------------
+ *
+ * machine.h--
+ *
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * machine.h,v 1.1.1.1 1994/11/07 05:19:38 andrew Exp
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef MACHINE_H
+#define MACHINE_H
+
+#define BLCKSZ 8192
+
+#endif
+
diff --git a/src/backend/port/svr4/port-protos.h b/src/backend/port/svr4/port-protos.h
new file mode 100644
index 0000000000000000000000000000000000000000..4b992570acde5a3a7d848413dfd0e09295ea3021
--- /dev/null
+++ b/src/backend/port/svr4/port-protos.h
@@ -0,0 +1,38 @@
+/*-------------------------------------------------------------------------
+ *
+ * port-protos.h--
+ * port-specific prototypes for Intel x86/Intel SVR4
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * port-protos.h,v 1.2 1995/03/17 06:40:18 andrew Exp
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PORT_PROTOS_H
+#define PORT_PROTOS_H
+
+#include <dlfcn.h>
+#include "fmgr.h" /* for func_ptr */
+#include "utils/dynamic_loader.h"
+
+/* dynloader.c */
+/*
+ * Dynamic Loader on Intel x86/Intel SVR4.
+ *
+ * this dynamic loader uses the system dynamic loading interface for shared
+ * libraries (ie. dlopen/dlsym/dlclose). The user must specify a shared
+ * library as the file to be dynamically loaded.
+ *
+ */
+#define pg_dlopen(f) dlopen(f,RTLD_LAZY)
+#define pg_dlsym dlsym
+#define pg_dlclose dlclose
+#define pg_dlerror dlerror
+
+/* port.c */
+extern long random(void);
+extern void srandom(int seed);
+
+#endif /* PORT_PROTOS_H */
diff --git a/src/backend/port/svr4/port.c b/src/backend/port/svr4/port.c
new file mode 100644
index 0000000000000000000000000000000000000000..137cebbcbe32e8ad60382fb8c5b3323b16c7d6c6
--- /dev/null
+++ b/src/backend/port/svr4/port.c
@@ -0,0 +1,143 @@
+/*-------------------------------------------------------------------------
+ *
+ * port.c--
+ * Intel x86/Intel SVR4-specific routines
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ * /usr/local/devel/pglite/cvs/src/backend/port/svr4/port.c,v 1.2 1995/03/17 06:40:19 andrew Exp
+ *
+ *-------------------------------------------------------------------------
+ */
+#include <math.h> /* for pow() prototype */
+
+#include <errno.h>
+#include "rusagestub.h"
+
+long
+random()
+{
+ return(lrand48());
+}
+
+void
+srandom(int seed)
+{
+ srand48((long int) seed);
+}
+
+int
+getrusage(int who, struct rusage *rusage)
+{
+ struct tms tms;
+ register int tick_rate = CLK_TCK; /* ticks per second */
+ clock_t u, s;
+
+ if (rusage == (struct rusage *) NULL) {
+ errno = EFAULT;
+ return(-1);
+ }
+ if (times(&tms) < 0) {
+ /* errno set by times */
+ return(-1);
+ }
+ switch (who) {
+ case RUSAGE_SELF:
+ u = tms.tms_utime;
+ s = tms.tms_stime;
+ break;
+ case RUSAGE_CHILDREN:
+ u = tms.tms_cutime;
+ s = tms.tms_cstime;
+ break;
+ default:
+ errno = EINVAL;
+ return(-1);
+ }
+#define TICK_TO_SEC(T, RATE) ((T)/(RATE))
+#define TICK_TO_USEC(T,RATE) (((T)%(RATE)*1000000)/RATE)
+ rusage->ru_utime.tv_sec = TICK_TO_SEC(u, tick_rate);
+ rusage->ru_utime.tv_usec = TICK_TO_USEC(u, tick_rate);
+ rusage->ru_stime.tv_sec = TICK_TO_SEC(s, tick_rate);
+ rusage->ru_stime.tv_usec = TICK_TO_USEC(u, tick_rate);
+ return(0);
+}
+
+/*
+ * Copyright (c) 1987 Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that this notice is preserved and that due credit is given
+ * to the University of California at Berkeley. The name of the University
+ * may not be used to endorse or promote products derived from this
+ * software without specific written prior permission. This software
+ * is provided ``as is'' without express or implied warranty.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char sccsid[] = "@(#)strcasecmp.c 5.5 (Berkeley) 11/24/87";
+#endif /* LIBC_SCCS and not lint */
+
+#include <sys/types.h>
+#include <string.h>
+
+/*
+ * This array is designed for mapping upper and lower case letter
+ * together for a case independent comparison. The mappings are
+p * based upon ascii character sequences.
+ */
+static unsigned char charmap[] = {
+ '\000', '\001', '\002', '\003', '\004', '\005', '\006', '\007',
+ '\010', '\011', '\012', '\013', '\014', '\015', '\016', '\017',
+ '\020', '\021', '\022', '\023', '\024', '\025', '\026', '\027',
+ '\030', '\031', '\032', '\033', '\034', '\035', '\036', '\037',
+ '\040', '\041', '\042', '\043', '\044', '\045', '\046', '\047',
+ '\050', '\051', '\052', '\053', '\054', '\055', '\056', '\057',
+ '\060', '\061', '\062', '\063', '\064', '\065', '\066', '\067',
+ '\070', '\071', '\072', '\073', '\074', '\075', '\076', '\077',
+ '\100', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
+ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
+ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
+ '\170', '\171', '\172', '\133', '\134', '\135', '\136', '\137',
+ '\140', '\141', '\142', '\143', '\144', '\145', '\146', '\147',
+ '\150', '\151', '\152', '\153', '\154', '\155', '\156', '\157',
+ '\160', '\161', '\162', '\163', '\164', '\165', '\166', '\167',
+ '\170', '\171', '\172', '\173', '\174', '\175', '\176', '\177',
+ '\200', '\201', '\202', '\203', '\204', '\205', '\206', '\207',
+ '\210', '\211', '\212', '\213', '\214', '\215', '\216', '\217',
+ '\220', '\221', '\222', '\223', '\224', '\225', '\226', '\227',
+ '\230', '\231', '\232', '\233', '\234', '\235', '\236', '\237',
+ '\240', '\241', '\242', '\243', '\244', '\245', '\246', '\247',
+ '\250', '\251', '\252', '\253', '\254', '\255', '\256', '\257',
+ '\260', '\261', '\262', '\263', '\264', '\265', '\266', '\267',
+ '\270', '\271', '\272', '\273', '\274', '\275', '\276', '\277',
+ '\300', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
+ '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
+ '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
+ '\370', '\371', '\372', '\333', '\334', '\335', '\336', '\337',
+ '\340', '\341', '\342', '\343', '\344', '\345', '\346', '\347',
+ '\350', '\351', '\352', '\353', '\354', '\355', '\356', '\357',
+ '\360', '\361', '\362', '\363', '\364', '\365', '\366', '\367',
+ '\370', '\371', '\372', '\373', '\374', '\375', '\376', '\377',
+};
+
+int
+strcasecmp(char *s1, char *s2)
+{
+ register unsigned char u1, u2;
+
+ for (;;) {
+ u1 = (unsigned char) *s1++;
+ u2 = (unsigned char) *s2++;
+ if (charmap[u1] != charmap[u2]) {
+ return charmap[u1] - charmap[u2];
+ }
+ if (u1 == '\0') {
+ return 0;
+ }
+ }
+}
+
diff --git a/src/backend/port/svr4/rusagestub.h b/src/backend/port/svr4/rusagestub.h
new file mode 100644
index 0000000000000000000000000000000000000000..d2393eb792d09f0680ea9d2aef1586723188d3e9
--- /dev/null
+++ b/src/backend/port/svr4/rusagestub.h
@@ -0,0 +1,30 @@
+/*-------------------------------------------------------------------------
+ *
+ * rusagestub.h--
+ * Stubs for getrusage(3).
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ * rusagestub.h,v 1.1.1.1 1994/11/07 05:19:39 andrew Exp
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef RUSAGESTUB_H
+#define RUSAGESTUB_H
+
+#include <sys/time.h> /* for struct timeval */
+#include <sys/times.h> /* for struct tms */
+#include <limits.h> /* for CLK_TCK */
+
+#define RUSAGE_SELF 0
+#define RUSAGE_CHILDREN -1
+
+struct rusage {
+ struct timeval ru_utime; /* user time used */
+ struct timeval ru_stime; /* system time used */
+};
+
+extern int getrusage(int who, struct rusage *rusage);
+
+#endif /* RUSAGESTUB_H */