From e99733ffee71d1f3737f3ea39a31e9449f51be94 Mon Sep 17 00:00:00 2001
From: ken <unknown>
Date: Mon, 23 Jul 2001 22:52:33 +0000
Subject: [PATCH] [project @ 2001-07-23 22:52:33 by ken] Improved how we build
 library archives:

On Digital UNIX (or where otherwise available), use the "Z" option to
compress archives as we build them.

On Digital UNIX 5 (or where otherwise available), use the "-input" option,
which reads from a specified file the list of objects to archive.  This is
significantly faster than piping the list of objects to xargs when the
number of objects to archive is large.
---
 aclocal.m4      |   19 ++++++++++++++++---
 mk/config.mk.in |    1 +
 mk/target.mk    |   11 +++++++++++
 3 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/aclocal.m4 b/aclocal.m4
index 0f164f6..67261b6 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -1,4 +1,4 @@
-dnl $Id: aclocal.m4,v 1.81 2001/07/19 22:08:07 sof Exp $
+dnl $Id: aclocal.m4,v 1.82 2001/07/23 22:52:33 ken Exp $
 dnl 
 dnl Extra autoconf macros for the Glasgow fptools
 dnl
@@ -280,7 +280,9 @@ AC_SUBST(YaccCmd)
 
 dnl *** Checking for ar and its arguments + whether we need ranlib.
 dnl
-dnl ArCmd and RANLIB are AC_SUBST'ed
+dnl ArCmd, ArSupportsInput and RANLIB are AC_SUBST'ed
+dnl On Digital UNIX, we test for the -Z (compress) and
+dnl -input (take list of files from external file) flags.
 dnl 
 AC_DEFUN(FPTOOLS_PROG_AR_AND_RANLIB,
 [AC_PATH_PROG(ArCmd,ar)
@@ -288,7 +290,10 @@ if test -z "$ArCmd"; then
     echo "You don't seem to have ar in your PATH...I have no idea how to make a library"
     exit 1;
 fi
-if $ArCmd clqs conftest.a >/dev/null 2>/dev/null; then
+if $ArCmd clqsZ conftest.a >/dev/null 2>/dev/null; then
+    ArCmd="$ArCmd clqsZ"
+    NeedRanLib=''
+elif $ArCmd clqs conftest.a >/dev/null 2>/dev/null; then
     ArCmd="$ArCmd clqs"
     NeedRanLib=''
 elif $ArCmd cqs conftest.a >/dev/null 2>/dev/null; then
@@ -310,6 +315,14 @@ fi
 rm -rf conftest*
 test -n "$ArCmd" && test -n "$verbose" && echo "        setting ArCmd to $ArCmd"
 AC_SUBST(ArCmd)
+if $ArCmd conftest.a -input /dev/null >/dev/null 2>/dev/null; then
+    ArSupportsInput='-input'
+else
+    ArSupportsInput=''
+fi
+rm -rf conftest*
+test -n "$ArSupportsInput" && test -n "$verbose" && echo "        setting ArSupportsInput to $ArSupportsInput"
+AC_SUBST(ArSupportsInput)
 if test -z "$NeedRanLib"; then
     RANLIB=':'
     test -n "$verbose" && echo "        setting RANLIB to $RANLIB"
diff --git a/mk/config.mk.in b/mk/config.mk.in
index a070225..40f5fd1 100644
--- a/mk/config.mk.in
+++ b/mk/config.mk.in
@@ -658,6 +658,7 @@ FLEX_LIB		=
 # Other standard (ha!) Unix utilities
 
 AR			= @ArCmd@
+ArSupportsInput		= @ArSupportsInput@
 # Yuckage: for ghc/utils/parallel -- todo: nuke this dependency!!
 BASH                    = /usr/local/bin/bash
 #
diff --git a/mk/target.mk b/mk/target.mk
index 6eabebf..8b09305 100644
--- a/mk/target.mk
+++ b/mk/target.mk
@@ -418,11 +418,22 @@ ifneq "$(way)" "u"
 
 SRC_HC_OPTS += -split-objs
 
+ifeq "$(ArSupportsInput)" ""
 define BUILD_LIB
 $(RM) $@
 (echo $(STUBOBJS); $(FIND) $(patsubst %.$(way_)o,%,$(LIBOBJS)) -name '*.$(way_)o') | xargs ar q $@
 $(RANLIB) $@
 endef
+else
+define BUILD_LIB
+$(RM) $@
+echo $(STUBOBJS) > $@.list
+$(FIND) $(patsubst %.$(way_)o,%,$(LIBOBJS)) -name '*.$(way_)o' >> $@.list
+$(AR) $(AR_OPTS) $@ $(ArSupportsInput) $@.list
+$(RM) $@.list
+$(RANLIB) $@
+endef
+endif
 
 # Extra stuff for compiling Haskell files with $(SplitObjs):
 
-- 
1.7.10.4