Remove dead ports

Remove the following ports:

- dgux
- nextstep
- sunos4
- svr4
- ultrix4
- univel

These are obsolete and not worth rescuing.  In most cases, there is
circumstantial evidence that they wouldn't work anymore anyway.

1 files changed, 0 insertions, 62 deletions

diff --git a/src/backend/port/nextstep/port.c b/src/backend/port/nextstep/port.c
deleted file mode 100644
index f81a83a17a0..00000000000
--- a/src/backend/port/nextstep/port.c
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * src/backend/port/nextstep/port.c
- */
-#include "postgres.h"
-
-#ifndef _POSIX_SOURCE
-#include "libc.h"
-#else
-#include <unistd.h>
-#endif
-
-#include <sys/signal.h>
-
-
-void
-putenv(char *name)
-{
-	extern char **environ;
-	static int	was_mallocated = 0;
-	int			size;
-
-	/* Compute the size of environ array including the final NULL */
-	for (size = 1; environ[size++];)
-		 /* nothing */ ;
-
-	if (!was_mallocated)
-	{
-		char	  **tmp = environ;
-		int			i;
-
-		was_mallocated = 1;
-		environ = malloc(size * sizeof(char *));
-		for (i = 0; i < size; i++)
-			environ[i] = tmp[i];
-	}
-
-	environ = realloc(environ, (size + 1) * sizeof(char *));
-	environ[size - 1] = strcpy(malloc(strlen(name) + 1), name);
-	environ[size] = NULL;
-}
-
-#ifndef _POSIX_SOURCE
-int
-sigaddset(int *set, int signo)
-{
-	*set |= sigmask(signo);
-	return *set;
-}
-
-int
-sigemptyset(int *set)
-{
-	return *set = 0;
-}
-
-char *
-getcwd(char *buf, size_t size)
-{
-	return getwd(buf);
-}
-
-#endif