Re-add support for running individual tests when built with LLVM3.3

It seems that the LLVM configure script no longer
looks for tclsh which was used to execute individual tests. E.g.

$ cd test
$ make TESTONE=Runtime/POSIX/DirConsistency.c check-one VERBOSE=1

This prevented the above from working. This commit fixes this by
having our configure script look for tclsh instead. The path_tclsh.m4
macro is taken from the projects/sample/autoconf/m4/ in LLVM3.3

4 files changed, 132 insertions, 0 deletions

diff --git a/Makefile.config.in b/Makefile.config.in
index 452cc1a1..9e04711b 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -66,3 +66,4 @@ LDFLAGS := @LDFLAGS@ -g
 
 REQUIRES_RTTI := @REQUIRES_RTTI@
 RUNTEST := @RUNTEST@
+TCLSH := @TCLSH@
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 09769f8f..fd249103 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -554,6 +554,7 @@ dnl **************************************************************************
 dnl * Check for dejagnu
 dnl **************************************************************************
 AC_PATH_PROG(RUNTEST, [runtest])
+DJ_AC_PATH_TCLSH
 
 dnl **************************************************************************
 dnl * Create the output files
diff --git a/autoconf/m4/path_tclsh.m4 b/autoconf/m4/path_tclsh.m4
new file mode 100644
index 00000000..85433de7
--- /dev/null
+++ b/autoconf/m4/path_tclsh.m4
@@ -0,0 +1,39 @@
+dnl This macro checks for tclsh which is required to run dejagnu. On some 
+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], [
+no_itcl=true
+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
+  if test -f ${with_tclinclude}/tclsh ; then
+    ac_cv_path_tclsh=`(cd ${with_tclinclude}; pwd)`
+  elif test -f ${with_tclinclude}/src/tclsh ; then
+    ac_cv_path_tclsh=`(cd ${with_tclinclude}/src; pwd)`
+  else
+    AC_MSG_ERROR([${with_tclinclude} directory doesn't contain tclsh])
+  fi
+fi])
+
+dnl see if one is installed
+if test x"${ac_cv_path_tclsh}" = x ; then
+  AC_MSG_RESULT(none)
+  AC_PATH_PROGS([TCLSH],[tclsh8.4 tclsh8.4.8 tclsh8.4.7 tclsh8.4.6 tclsh8.4.5 tclsh8.4.4 tclsh8.4.3 tclsh8.4.2 tclsh8.4.1 tclsh8.4.0 tclsh8.3 tclsh8.3.5 tclsh8.3.4 tclsh8.3.3 tclsh8.3.2 tclsh8.3.1 tclsh8.3.0 tclsh])
+  if test x"${TCLSH}" = x ; then
+    ac_cv_path_tclsh='';
+  else
+    ac_cv_path_tclsh="${TCLSH}";
+  fi
+else
+  AC_MSG_RESULT(${ac_cv_path_tclsh})
+  TCLSH="${ac_cv_path_tclsh}"
+  AC_SUBST(TCLSH)
+fi
+])
+
diff --git a/configure b/configure
index f2714ae8..6eda1243 100755
--- a/configure
+++ b/configure
@@ -624,6 +624,7 @@ ac_includes_default="\
 
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
+TCLSH
 RUNTEST
 METASMT_ROOT
 ENABLE_METASMT
@@ -727,6 +728,7 @@ enable_posix_runtime
 with_runtime
 with_stp
 with_metasmt
+with_tclinclude
 '
       ac_precious_vars='build_alias
 host_alias
@@ -1376,6 +1378,7 @@ Optional Packages:
                           (default [Release+Asserts])
   --with-stp              Location of STP installation directory
   --with-metasmt          Location of metaSMT installation directory
+  --with-tclinclude       directory where tcl headers are
 
 Some influential environment variables:
   CC          C compiler command
@@ -5026,6 +5029,94 @@ fi
 
 
 
+no_itcl=true
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for the tclsh program in tclinclude directory" >&5
+$as_echo_n "checking for the tclsh program in tclinclude directory... " >&6; }
+
+# Check whether --with-tclinclude was given.
+if test "${with_tclinclude+set}" = set; then :
+  withval=$with_tclinclude; with_tclinclude=${withval}
+else
+  with_tclinclude=''
+fi
+
+if ${ac_cv_path_tclsh+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+
+if test x"${with_tclinclude}" != x ; then
+  if test -f ${with_tclinclude}/tclsh ; then
+    ac_cv_path_tclsh=`(cd ${with_tclinclude}; pwd)`
+  elif test -f ${with_tclinclude}/src/tclsh ; then
+    ac_cv_path_tclsh=`(cd ${with_tclinclude}/src; pwd)`
+  else
+    as_fn_error $? "${with_tclinclude} directory doesn't contain tclsh" "$LINENO" 5
+  fi
+fi
+fi
+
+
+if test x"${ac_cv_path_tclsh}" = x ; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+  for ac_prog in tclsh8.4 tclsh8.4.8 tclsh8.4.7 tclsh8.4.6 tclsh8.4.5 tclsh8.4.4 tclsh8.4.3 tclsh8.4.2 tclsh8.4.1 tclsh8.4.0 tclsh8.3 tclsh8.3.5 tclsh8.3.4 tclsh8.3.3 tclsh8.3.2 tclsh8.3.1 tclsh8.3.0 tclsh
+do
+  # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_TCLSH+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  case $TCLSH in
+  [\\/]* | ?:[\\/]*)
+  ac_cv_path_TCLSH="$TCLSH" # Let the user override the test with a path.
+  ;;
+  *)
+  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_path_TCLSH="$as_dir/$ac_word$ac_exec_ext"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+  ;;
+esac
+fi
+TCLSH=$ac_cv_path_TCLSH
+if test -n "$TCLSH"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $TCLSH" >&5
+$as_echo "$TCLSH" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+  test -n "$TCLSH" && break
+done
+
+  if test x"${TCLSH}" = x ; then
+    ac_cv_path_tclsh='';
+  else
+    ac_cv_path_tclsh="${TCLSH}";
+  fi
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_cv_path_tclsh}" >&5
+$as_echo "${ac_cv_path_tclsh}" >&6; }
+  TCLSH="${ac_cv_path_tclsh}"
+
+fi
+
+
 
 ac_config_commands="$ac_config_commands Makefile"