Add sysv4 support to configure and docs.

Author: bmomjian

INSTALL

@@ -53,7 +53,7 @@ PostgreSQL has been tested on the following platforms:
                   (For non-ELF Linux, see LINUX_ELF below).
    sparc_solaris  SUN SPARC on Solaris 2.4
    sunos4         SUN SPARC on SunOS 4.1.3
-   svr4           Intel x86 on Intel SVR4
+   svr4           Intel x86 on Intel SVR4 and MIPS
    ultrix4        DEC MIPS on Ultrix 4.4
 
 PostgreSQL has known problems/bugs on the following platforms:

doc/FAQ

@@ -165,7 +165,7 @@ Section 1: General Questions
        see LINUX_ELF below).
      * sparc_solaris - SUN SPARC on Solaris 2.4
      * sunos4 - SUN SPARC on SunOS 4.1.3
-     * svr4 - Intel x86 on Intel SVR4
+     * svr4 - Intel x86 on Intel SVR4 and MIPS
      * ultrix4 - DEC MIPS on Ultrix 4.4
 
    The following platforms have known problems/bugs:

src/configure

@@ -584,6 +584,7 @@ nextstep*) PORTNAME='nextstep';;
     irix*) PORTNAME='irix5';;
     hpux*) PORTNAME='hpux';;
      osf*) PORTNAME='alpha';;
+   sysv4*) PORTNAME='svr4';;
  sysv4.2*) 
        case "$host_vendor" in
                univel) PORTNAME='univel';;

src/configure.in

@@ -20,6 +20,7 @@ nextstep*) PORTNAME='nextstep';;
     irix*) PORTNAME='irix5';;
     hpux*) PORTNAME='hpux';;
      osf*) PORTNAME='alpha';;
+   sysv4*) PORTNAME='svr4';;
  sysv4.2*) 
        case "$host_vendor" in
                univel) PORTNAME='univel';;