* Make sure the cache variable gets cached

* Don't search a bunch of .. directories for something we'd never find,
  because we don't imbed tclsh into LLVM.
* Look for various tclsh versions because some platforms don't install the
  tclsh link but just have tclsh8.3 or tclsh8.4 or some such.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@18414 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 16 insertions, 33 deletions

diff --git a/autoconf/m4/path_tclsh.m4 b/autoconf/m4/path_tclsh.m4
index 4fb00290fe..10ea74467c 100644
--- a/autoconf/m4/path_tclsh.m4
+++ b/autoconf/m4/path_tclsh.m4
@@ -3,12 +3,12 @@ dnl platforms (notably FreeBSD), tclsh is named tclshX.Y - this handles
 dnl that for us so we can get the latest installed tclsh version.
 dnl 
 AC_DEFUN([DJ_AC_PATH_TCLSH], [
-dirlist=".. ../../ ../../../ ../../../../ ../../../../../ ../../../../../../ ../
-../../../../../.. ../../../../../../../.. ../../../../../../../../.. ../../../..
-/../../../../../.."
 no_itcl=true
-AC_MSG_CHECKING(for the tclsh program)
-AC_ARG_WITH(tclinclude, [  --with-tclinclude       directory where tcl headers are], with_tclinclude=${withval})
+AC_MSG_CHECKING(for the tclsh program in tclinclude directory)
+AC_ARG_WITH(tclinclude,
+  AS_HELP_STRING([--with-tclinclude],
+                [directory where tcl headers are]), 
+  [with_tclinclude=${withval}],[with_tclinclude=''])
 AC_CACHE_VAL(ac_cv_path_tclsh,[
 dnl first check to see if --with-itclinclude was specified
 if test x"${with_tclinclude}" != x ; then
@@ -20,37 +20,20 @@ if test x"${with_tclinclude}" != x ; then
     AC_MSG_ERROR([${with_tclinclude} directory doesn't contain tclsh])
   fi
 fi
-])
-
-dnl next check in private source directory
-dnl since ls returns lowest version numbers first, reverse its output
-if test x"${ac_cv_path_tclsh}" = x ; then
-    dnl find the top level Itcl source directory
-    for i in $dirlist; do
-        if test -n "`ls -dr $srcdir/$i/tcl* 2>/dev/null`" ; then
-            tclpath=$srcdir/$i
-            break
-        fi
-    done
-
-    dnl find the exact Itcl source dir. We do it this way, cause there
-    dnl might be multiple version of Itcl, and we want the most recent one.
-    for i in `ls -dr $tclpath/tcl* 2>/dev/null ` ; do
-        if test -f $i/src/tclsh ; then
-          ac_cv_path_tclsh=`(cd $i/src; pwd)`/tclsh
-          break
-        fi
-    done
-fi
 
 dnl see if one is installed
 if test x"${ac_cv_path_tclsh}" = x ; then
-   AC_MSG_RESULT(none)
-   AC_PATH_PROG(tclsh, tclsh)
+  AC_MSG_RESULT(none)
+  AC_PATH_PROGS([TCLSH],[tclsh tclsh8.4 tclsh8.4.8 tclsh8.4.7 tclsh8.4.6 tclsh8.4.5 tclsh8.4.4 tclsh8.4.3 tclsh8.4.2 tclsh8.4.1 tclsh8.4.0 tclsh8.3 tclsh8.3.5 tclsh8.3.4 tclsh8.3.3 .tclsh8.3.2 tclsh8.3.1 tclsh8.3.0])
+  if test x"${TCLSH}" = x ; then
+    ac_cv_path_tclsh='';
+  else
+    ac_cv_path_tclsh="${TCLSH}";
+  fi
 else
-   AC_MSG_RESULT(${ac_cv_path_tclsh})
+  AC_MSG_RESULT(${ac_cv_path_tclsh})
+  TCLSH="${ac_cv_path_tclsh}"
+  AC_SUBST(TCLSH)
 fi
-TCLSH="${ac_cv_path_tclsh}"
-AC_SUBST(TCLSH)
-])
+])])