Adrian Hall reported a problem to me that snprintf() doesn't exist in, at

least, Solaris 2.5.1.  We use it in backend/utils/adt/int8.c.

Add a check to configure so that we see if it exists or not, and, if not,
compile in snprintf.c from backend/port, which was taken from, and falls under
the same Berkeley license as us, the FreeBSD libc/stdio ...

src/backend/port/Makefile.in

@@ -13,7 +13,7 @@
 # be converted to Method 2.  
 #
 # IDENTIFICATION
-#    $Header: /cvsroot/pgsql/src/backend/port/Attic/Makefile.in,v 1.16 1998/04/06 00:24:10 momjian Exp $
+#    $Header: /cvsroot/pgsql/src/backend/port/Attic/Makefile.in,v 1.17 1998/08/01 19:30:27 scrappy Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -24,7 +24,7 @@ CFLAGS+= -I..
 
 OBJS = dynloader.o @INET_ATON@ @STRERROR@ @MISSING_RANDOM@ @SRANDOM@
 OBJS+= @GETHOSTNAME@ @GETRUSAGE@ @STRCASECMP@ @STRDUP@ @TAS@ @ISINF@
-OBJS+= @STRTOL@ @STRTOUL@
+OBJS+= @STRTOL@ @STRTOUL@ @SNPRINTF@
 all: SUBSYS.o
 
 SUBSYS.o: $(OBJS)

src/backend/port/snprintf.c

@@ -0,0 +1,89 @@
+/*-
+ * Copyright (c) 1990, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * Chris Torek.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)snprintf.c	8.1 (Berkeley) 6/4/93";
+#endif
+static const char rcsid[] =
+		"$Id: snprintf.c,v 1.1 1998/08/01 19:30:28 scrappy Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <limits.h>
+#include <stdio.h>
+#if __STDC__
+#include <stdarg.h>
+#else
+#include <varargs.h>
+#endif
+
+#if __STDC__
+int
+snprintf(char *str, size_t n, char const *fmt, ...)
+#else
+int
+snprintf(str, n, fmt, va_alist)
+	char *str;
+	size_t n;
+	char *fmt;
+	va_dcl
+#endif
+{
+	size_t on;
+	int ret;
+	va_list ap;
+	FILE f;
+
+	on = n;
+	if (n != 0)
+		n--;
+	if (n > INT_MAX)
+		n = INT_MAX;
+#if __STDC__
+	va_start(ap, fmt);
+#else
+	va_start(ap);
+#endif
+	f._file = -1;
+	f._flags = __SWR | __SSTR;
+	f._bf._base = f._p = (unsigned char *)str;
+	f._bf._size = f._w = n;
+	ret = vfprintf(&f, fmt, ap);
+	if (on > 0)
+		*f._p = '\0';
+	va_end(ap);
+	return (ret);
+}