FAQ_Irix update

doc/FAQ_Irix

-<PRE>
 ======================================================
 Frequently Asked Questions (FAQ) for PostgreSQL >=V6.1
 IRIX Specific
 TO BE READ IN CONJUNCTION WITH THE NORMAL FAQ
 ======================================================
-last updated:           Mon Dec 04 10:20:00 GMT 1997
+last updated:           Mon Mar 05 17:00:00 GMT 1998
 
 current maintainer:     Andrew C.R. Martin (martin@biochem.ucl.ac.uk)
 original author:        Andrew C.R. Martin (martin@biochem.ucl.ac.uk)
 
 
 Changes in this version (* = modified, + = new, - = removed):
-+1.9)   Why does IRIX5 lex fail with PostgreSQL 6.2.1?
+*1.5)   Can I install PostgreSQL (<V6.3) under Irix 6.x?
++1.10)  How do I install PostgreSQL V6.3 under Irix 6.x?
 
 This file is divided approximately as follows:
 1.*)    Installing PostgreSQL
@@ -25,12 +25,13 @@ Questions answered:
 1.3)    What are the references in X11_LIB to libsocket and libnsl in
         src/Makefile.global?
 1.4)    Are there any other changes I should make?
-1.5)    Can I install PostgreSQL under Irix 6.x?
+1.5)    Can I install PostgreSQL (<V6.3) under Irix 6.x?
 1.6)    The make fails with the following message:
         ld32: ERROR 4: Conflicting flag setting: -call_shared
 1.7)    Why won't it link? (Problems with lorder)
 1.8)    I have major problems with IRIX 6!
 1.9)    Why does lex fail with PostgreSQL 6.2.1?
+1.10)   How do I install PostgreSQL V6.3 under Irix 6.x?
 2.1)    Why can't I move the executable files?
 3.1)    How do I compile a C program to create a function for extending
         PostgreSQL
@@ -93,7 +94,9 @@ Section 1:      Installing PostgreSQL
         Ginstall is part of the GNU fileutils package.
 
 
-1.5)    Can I install PostgreSQL under Irix 6.x?
+1.5)    Can I install PostgreSQL (<V6.3) under Irix 6.x?
+
+        Instructions for PostgreSQL V6.3 are answered in Question 1.10!
 
         Irix 6.2-6.4 has a bug in ld which mishandles the addresses of
         static procedures when object files are assembled into
@@ -345,6 +348,107 @@ Here are the patches:
         to check you have a new enough version of flex
 
 
+1.10)   How do I install PostgreSQL V6.3 under Irix 6.x?
+
+        Irix 6.2-6.4 has a bug in ld which mishandles the addresses of
+        static procedures when object files are assembled into
+        larger object files using 'ld -r'. This bug has been reported
+        to Silicon Graphics. 
+
+        Depending on your Irix installation you may also encounter
+        2 other problems detailed below: Conflict in C standards,
+        Conflict in library functions.
+
+        a) Solving the ld bug
+        ---------------------
+
+        One option is to use the Gnu version of ld. Alternatively,
+        the following patch should be applied as a workaround. 
+        (Supplied by Bob Bruccoleri <bruc@bms.com> and modified for
+        PostgreSQL V6.3 by Lasse Hiller Petersen <lassehp@imv.aau.dk>)
+
+        Apply the following patch:
+
+*** ./backend/Makefile.orig     Tue Mar  3 15:33:58 1998
+--- ./backend/Makefile  Tue Mar  3 15:39:27 1998
+***************
+*** 63,69 ****
+                                global1.description
+local1_template1.description
+
+  postgres: $(OBJS) ../utils/version.o
+!       $(CC) -o postgres $(OBJS) ../utils/version.o $(LDFLAGS)
+
+  $(OBJS): $(DIRS:%=%.dir)
+
+--- 63,73 ----
+                                global1.description
+local1_template1.description
+
+  postgres: $(OBJS) ../utils/version.o
+! #     $(CC) -o postgres $(OBJS) ../utils/version.o $(LDFLAGS)
+!       -rm -f *.o
+!       find . -name "*.o" -exec cp \{\} . \;
+!       rm -f SUBSYS.o
+!       $(CC) -o postgres *.o ../utils/version.o $(LDFLAGS)
+
+  $(OBJS): $(DIRS:%=%.dir)
+
+
+
+
+        Lasse configured with ./configure --enable-locale
+        and modified Makefile.custom to contain:
+CC = cc -n32
+LD = ld -n32
+        
+        He reports that the installation without -n32 works fine too,
+        but the -n32 was required for compatibility with his Perl
+        installation. His system was an Origin200 running IRIX64 v6.4.
+
+
+        b) Conflict in C standards
+        --------------------------
+
+        I have found that the following patch is also necessary in order
+        to prevent a duplicate definition of a Union used for semaphores.
+        Apply the following patch to:
+        .../src/makefile/Makefile.irix5:
+
+*** src/makefiles/Makefile.irix5.orig   Thu Mar  5 16:59:58 1998
+--- src/makefiles/Makefile.irix5        Thu Mar  5 17:01:13 1998
+***************
+*** 6,9 ****
+  %.so: %.o
+        $(LD) -G -Bdynamic -shared -o $@ $<
+
+!
+--- 6,9 ----
+  %.so: %.o
+        $(LD) -G -Bdynamic -shared -o $@ $<
+
+! CFLAGS+= -U_NO_XOPEN4
+
+        i.e. the addition of the line:
+        CFLAGS+= -U_NO_XOPEN4
+
+        This is needed to stop the semun union being redefined in
+        /usr/include/sys/sem.h
+
+        c) Conflict in library functions
+        --------------------------------
+
+        In addition, if you have the nsl and crypt libraries these will
+        conflict with the required definitions. I think that libnsl.a
+        may be the Netware socket library (or something similar). In
+        any case, if you have these libraries, they will be added to
+        Makefile.global and you will need to remove them.
+
+        Thus, you should edit .../src/Makefile.global. Goto (approximately)
+        line 217 where LDFLAGS= is set and remove -lnsl and -lcrypt
+        from this line.
+
+
 ----------------------------------------------------------------------
 Section 2:      Deinstalling PostgreSQL
 ----------------------------------------------------------------------
@@ -384,4 +488,3 @@ Dr. Andrew C.R. Martin                             University College London
 EMAIL: (Work) martin@biochem.ucl.ac.uk    (Home) andrew@stagleys.demon.co.uk
 URL:   http://www.biochem.ucl.ac.uk/~martin
 Tel:   (Work) +44(0)171 419 3890                    (Home) +44(0)1372 275775
-</PRE>