diff --git a/src/port/BSD44_derived.h b/src/port/BSD44_derived.h
deleted file mode 100644
index 919b38cffe053b38592789a65222fd5981379704..0000000000000000000000000000000000000000
--- a/src/port/BSD44_derived.h
+++ /dev/null
@@ -1,7 +0,0 @@
-# define USE_POSIX_TIME
-# define NEED_I386_TAS_ASM
-# define HAS_TEST_AND_SET
-# if defined(__mips__)
-/* # undef HAS_TEST_AND_SET */
-# endif
- typedef unsigned char slock_t;
diff --git a/src/port/aix.h b/src/port/aix.h
deleted file mode 100644
index 1d50688d90f4c13c5a70776cb0cac5411b9b344e..0000000000000000000000000000000000000000
--- a/src/port/aix.h
+++ /dev/null
@@ -1,5 +0,0 @@
-# define CLASS_CONFLICT
-# define DISABLE_XOPEN_NLS
-# define HAVE_ANSI_CPP
-# define HAS_TEST_AND_SET
- typedef unsigned int slock_t;
diff --git a/src/port/alpha.h b/src/port/alpha.h
deleted file mode 100644
index 5ac7ba167a0630e930ab5f7d2f72bbecad800a3f..0000000000000000000000000000000000000000
--- a/src/port/alpha.h
+++ /dev/null
@@ -1,7 +0,0 @@
-# define USE_POSIX_TIME
-# define USE_POSIX_SIGNALS
-# define DISABLE_XOPEN_NLS
-# define HAS_LONG_LONG
-# define HAS_TEST_AND_SET
-# include <sys/mman.h> /* for msemaphore */
- typedef msemaphore slock_t;
diff --git a/src/port/bsdi.h b/src/port/bsdi.h
deleted file mode 100644
index 022c41dbd6a769b64827067faa655ef6d05ec6ba..0000000000000000000000000000000000000000
--- a/src/port/bsdi.h
+++ /dev/null
@@ -1,9 +0,0 @@
-# if defined(i386)
-# define NEED_I386_TAS_ASM
-# endif
-# if defined(sparc)
-# define NEED_SPARC_TAS_ASM
-# endif
-# define USE_POSIX_TIME
-# define HAS_TEST_AND_SET
- typedef unsigned char slock_t;
diff --git a/src/port/dgux.h b/src/port/dgux.h
deleted file mode 100644
index a004c2928a7a441901dd67d018147983cc9284dc..0000000000000000000000000000000000000000
--- a/src/port/dgux.h
+++ /dev/null
@@ -1,2 +0,0 @@
-# define LINUX_ELF
-# define USE_POSIX_SIGNALS
diff --git a/src/port/hpux.h b/src/port/hpux.h
deleted file mode 100644
index 8bf04ce5b0529b512e16d00fe20d6cb202a9367c..0000000000000000000000000000000000000000
--- a/src/port/hpux.h
+++ /dev/null
@@ -1,4 +0,0 @@
-# define JMP_BUF
-# define USE_POSIX_TIME
-# define HAS_TEST_AND_SET
- typedef struct { int sem[4]; } slock_t;
diff --git a/src/port/i386_solaris.h b/src/port/i386_solaris.h
deleted file mode 100644
index 0ac1116f06f9fde6a1ba2c91fa0eace54f21d8ac..0000000000000000000000000000000000000000
--- a/src/port/i386_solaris.h
+++ /dev/null
@@ -1,38 +0,0 @@
-# define USE_POSIX_TIME
-# define USE_POSIX_SIGNALS
-# define NO_EMPTY_STMTS
-# define SYSV_DIRENT
-# define HAS_TEST_AND_SET
- typedef unsigned char slock_t;
-
-#include <sys/isa_defs.h>
-
-#ifndef BYTE_ORDER
-#define BYTE_ORDER LITTLE_ENDIAN
-#endif
-
-#ifndef NAN
-
-#ifndef __nan_bytes
-#define __nan_bytes { 0, 0, 0, 0, 0, 0, 0xf8, 0x7f }
-#endif /* __nan_bytes */
-
-#ifdef __GNUC__
-#define NAN \
- (__extension__ ((union { unsigned char __c[8]; \
- double __d; }) \
- { __nan_bytes }).__d)
-
-#else /* Not GCC. */
-#define NAN (*(__const double *) __nan)
-#endif /* GCC. */
-#endif /* NAN */
-
-#ifndef index
-#define index strchr
-#endif
-
-#ifndef HAVE_RUSAGE
-#define HAVE_RUSAGE 1
-#endif
-
diff --git a/src/port/irix5.h b/src/port/irix5.h
deleted file mode 100644
index c995eb671fb193616e3610037bcdfb631bef79ef..0000000000000000000000000000000000000000
--- a/src/port/irix5.h
+++ /dev/null
@@ -1,7 +0,0 @@
-# define USE_POSIX_TIME
-# define USE_POSIX_SIGNALS
-# define NO_EMPTY_STMTS
-# define SYSV_DIRENT
-# define HAS_TEST_AND_SET
-# include <abi_mutex.h>
- typedef abilock_t slock_t;
diff --git a/src/port/linux.h b/src/port/linux.h
deleted file mode 100644
index fa311d984fe6b9d076263515e44e1c8aaf94cb48..0000000000000000000000000000000000000000
--- a/src/port/linux.h
+++ /dev/null
@@ -1,14 +0,0 @@
-/* __USE_POSIX, __USE_BSD, and __USE_BSD_SIGNAL used to be defined either
- here or with -D compile options, but __ macros should be set and used by C
- library macros, not Postgres code. __USE_POSIX is set by features.h,
- __USE_BSD is set by bsd/signal.h, and __USE_BSD_SIGNAL appears not to
- be used.
-*/
-# define JMP_BUF
-# define USE_POSIX_TIME
-# define USE_POSIX_SIGNALS
-# if !defined(PPC)
-# define NEED_I386_TAS_ASM
-# define HAS_TEST_AND_SET
- typedef unsigned char slock_t;
-# endif
diff --git a/src/port/nextstep.h b/src/port/nextstep.h
deleted file mode 100644
index d7fbae858c69a0732368efbf951f4b2f6aff6321..0000000000000000000000000000000000000000
--- a/src/port/nextstep.h
+++ /dev/null
@@ -1,17 +0,0 @@
-# include <sys/ioctl.h>
-# if defined(__STRICT_ANSI__)
-# define isascii(c) ((unsigned)(c)<=0177)
-# endif
- extern char* strdup (const char* string);
-# ifndef _POSIX_SOURCE
- typedef unsigned short mode_t;
- typedef int sigset_t;
-# define SIG_BLOCK 00
-# define SIG_UNBLOCK 01
-# define SIG_SETMASK 02
-# define NEED_SIG_JMP
-# endif
-
-# define JMP_BUF
-# define NO_WAITPID
- typedef struct mutex slock_t;
diff --git a/src/port/sparc_solaris.h b/src/port/sparc_solaris.h
deleted file mode 100644
index 25746c62669a7db9930a7d4e09925a4a58f7a9ac..0000000000000000000000000000000000000000
--- a/src/port/sparc_solaris.h
+++ /dev/null
@@ -1,10 +0,0 @@
-# define USE_POSIX_TIME
-# define USE_POSIX_SIGNALS
-# define NO_EMPTY_STMTS
-# define SYSV_DIRENT
-# define HAS_TEST_AND_SET
- typedef unsigned char slock_t;
-
-#ifndef BYTE_ORDER
-#define BYTE_ORDER BIG_ENDIAN
-#endif
diff --git a/src/port/sunos4.h b/src/port/sunos4.h
deleted file mode 100644
index 0dbac44dffdab2ffb7e6ddfc1f65c11da90b7ca8..0000000000000000000000000000000000000000
--- a/src/port/sunos4.h
+++ /dev/null
@@ -1 +0,0 @@
-# define USE_POSIX_TIME
diff --git a/src/port/svr4.h b/src/port/svr4.h
deleted file mode 100644
index 0c9810a1cc2128bbd6e6f0108f3540284b0ef062..0000000000000000000000000000000000000000
--- a/src/port/svr4.h
+++ /dev/null
@@ -1,4 +0,0 @@
-# define USE_POSIX_TIME
-# define USE_POSIX_SIGNALS
-# define NO_EMPTY_STMTS
-# define SYSV_DIRENT
diff --git a/src/port/ultrix4.h b/src/port/ultrix4.h
deleted file mode 100644
index 55aa074f3ad094bdd5f8d6819c464953202076dd..0000000000000000000000000000000000000000
--- a/src/port/ultrix4.h
+++ /dev/null
@@ -1,58 +0,0 @@
-# define USE_POSIX_TIME
-# define NEED_STRDUP
-
-/*
- * Except for those system calls and library functions that are either
- * - covered by the C standard library and Posix.1
- * - or need a declaration to declare parameter or return types,
- * most Ultrix 4 calls are not declared in the system header files.
- * The rest of this header is used to remedy this for PostgreSQL to give a
- * warning-free compilation.
- */
-
-#include <sys/types.h> /* Declare various types, e.g. size_t, fd_set */
-
-extern int strcasecmp(const char *, const char *);
-extern void bzero(void *, size_t);
-
-extern int fp_class_d(double);
-extern long random(void);
-
-struct rusage;
-extern int getrusage(int, struct rusage *);
-
-extern int ioctl(int, unsigned long, ...);
-
-extern int socket(int, int, int);
-struct sockaddr;
-extern int connect(int, const struct sockaddr *, int);
-typedef int ssize_t;
-extern ssize_t send(int, const void *, size_t, int);
-extern ssize_t recv(int, void*, size_t, int);
-extern int setsockopt(int, int, int, const void *, int);
-extern int bind(int, const struct sockaddr *, int);
-extern int listen(int, int);
-extern int accept(int, struct sockaddr *, int *);
-extern int getsockname(int, struct sockaddr *, int *);
-extern ssize_t recvfrom(int, void *, size_t, int, struct sockaddr *, int *);
-extern ssize_t sendto(int, const void *, size_t, int, const struct sockaddr *, int);
-struct timeval;
-extern int select(int, fd_set*, fd_set*, fd_set*, struct timeval *);
-
-extern int gethostname(char *, int);
-
-extern int getopt(int, char * const *, const char *);
-extern int putenv(const char *);
-
-extern pid_t vfork(void);
-
-struct itimerval;
-extern int setitimer(int, const struct itimerval*, struct itimerval *);
-struct timezone;
-extern int gettimeofday(struct timeval *, struct timezone *);
-
-extern int fsync(int);
-extern int ftruncate(int, off_t);
-
-/* End of ultrix4.h */
-
diff --git a/src/port/univel.h b/src/port/univel.h
deleted file mode 100644
index f1a7afc83bb40ce84e4b047f484627bdf93e777a..0000000000000000000000000000000000000000
--- a/src/port/univel.h
+++ /dev/null
@@ -1,19 +0,0 @@
-# define USE_POSIX_TIME
-# define NO_EMPTY_STMTS
-# define USE_POSIX_SIGNALS
-# define SYSV_DIRENT
-
-#if 0
-# define HAS_TEST_AND_SET
- typedef unsigned char slock_t;
-#endif
-
-extern long random(void);
-extern void srandom(int seed);
-extern int strcasecmp(char *s1,char *s2);
-extern int gethostname(char *name,int namelen);
-
-#ifndef BYTE_ORDER
-#define BYTE_ORDER LITTLE_ENDIAN
-#endif
-
diff --git a/src/port/win32.h b/src/port/win32.h
deleted file mode 100644
index 7f4c97c582e57b008287f6d0e06f536cf7896e28..0000000000000000000000000000000000000000
--- a/src/port/win32.h
+++ /dev/null
@@ -1,8 +0,0 @@
-# define JMP_BUF
-# define NEED_SIG_JMP
-# define NO_UNISTD_H
-# define USES_WINSOCK
-# define NOFILE 100
-# ifndef MAXPATHLEN
-# define MAXPATHLEN 250
-# endif