From 141681c541737f4d78813e7c225d7c76ba2deabf Mon Sep 17 00:00:00 2001
From: rjohnson <rjohnson>
Date: Fri, 29 Jan 1999 00:32:01 +0000
Subject: Added -pipe option if gcc is being used.

---
 changes           |  4 +++-
 unix/configure.in | 19 ++++++++++++++++++-
 2 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/changes b/changes
index 06796b8..87f76ee 100644
--- a/changes
+++ b/changes
@@ -1,6 +1,6 @@
 Recent user-visible changes to Tcl:
 
-RCS: @(#) $Id: changes,v 1.38 1999/01/12 02:50:33 rjohnson Exp $
+RCS: @(#) $Id: changes,v 1.39 1999/01/29 00:32:14 rjohnson Exp $
 
 1. No more [command1] [command2] construct for grouping multiple
 commands on a single command line.
@@ -3695,3 +3695,5 @@ Thanks to Kevin Kenny for this fix.  (SS)
 
 1/11/98 (bug fix)  On HP, "info sharedlibextension" was returning 
 empty string on static apps.  It now always returns ".sl".  (RJ)
+
+1/28/99 (configure change) Now support -pipe option on gcc.  (RJ)
diff --git a/unix/configure.in b/unix/configure.in
index 0d47b62..0f7d6aa 100644
--- a/unix/configure.in
+++ b/unix/configure.in
@@ -2,7 +2,7 @@ dnl	This file is an input file used by the GNU "autoconf" program to
 dnl	generate the file "configure", which is run during Tcl installation
 dnl	to configure the system for the local environment.
 AC_INIT(../generic/tcl.h)
-# RCS: @(#) $Id: configure.in,v 1.24 1999/01/12 02:29:33 rjohnson Exp $
+# RCS: @(#) $Id: configure.in,v 1.25 1999/01/29 00:32:01 rjohnson Exp $
 
 TCL_VERSION=8.0
 TCL_MAJOR_VERSION=8
@@ -36,6 +36,23 @@ else
     CFLAGS_WARNING=""
 fi
 
+#------------------------------------------------------------------------------
+# If we're using GCC, see if the compiler understands -pipe.  If so, use it.
+# It makes compiling go faster.  (This is only a performance feature.)
+#------------------------------------------------------------------------------
+
+if test -z "$no_pipe"; then
+if test -n "$GCC"; then
+  AC_MSG_CHECKING([if the compiler understands -pipe])
+  OLDCC="$CC"  
+  CC="$CC -pipe"
+  AC_TRY_COMPILE(,,
+    AC_MSG_RESULT(yes),
+    CC="$OLDCC"
+    AC_MSG_RESULT(no))
+fi  
+fi
+
 #--------------------------------------------------------------------
 #	Supply substitutes for missing POSIX library procedures, or
 #	set flags so Tcl uses alternate procedures.
-- 
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