From dc66995c1ead9543241b576ecca9933210bf2cd5 Mon Sep 17 00:00:00 2001
From: Malcolm Beattie <mbeattie@sable.ox.ac.uk>
Date: Wed, 1 Oct 1997 17:04:12 +0000
Subject: [PATCH] Start of Configure support for -Dusethreads plus associated
 Linux hints.

p4raw-id: //depot/perl@88
---
 Configure      |  8 +++++++-
 hints/linux.sh | 12 ++++++++++++
 2 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/Configure b/Configure
index 19a7e16..36f446b 100755
--- a/Configure
+++ b/Configure
@@ -209,6 +209,7 @@ tr=''
 troff=''
 uname=''
 uniq=''
+usethreads=''
 uuname=''
 vi=''
 zcat=''
@@ -2085,7 +2086,12 @@ case "$archname" in
 esac
 rp='What is your architecture name'
 . ./myread
-archname="$ans"
+case "$usethreads" in
+$define)  archname="$ans-thread"
+          echo "usethreads selected... architecture name is now $archname." >&4
+          ;;
+*)        archname="$ans" ;;
+esac
 myarchname="$tarch"
 
 : is AFS running?
diff --git a/hints/linux.sh b/hints/linux.sh
index d458c49..54bc122 100644
--- a/hints/linux.sh
+++ b/hints/linux.sh
@@ -182,3 +182,15 @@ then
 else
     echo 'Your csh is really tcsh.  Good.'
 fi
+
+if [ "X$usethreads" != "X" ]; then
+    ccflags="-D_REENTRANT -DUSE_THREADS $ccflags"
+    cppflags="-D_REENTRANT -DUSE_THREADS $cppflags"
+    # -lpthread needs to come before -lc but after other libraries such
+    # as -lgdbm and such like. We assume here that -lc is present in
+    # libswanted. If that fails to be true in future, then this can be
+    # changed to add pthread to the very end of libswanted.
+    set `echo X "$libswanted "| sed -e 's/ c / pthread c /'`
+    shift
+    libswanted="$*"
+fi
-- 
2.7.4