fix for #1466 - tclsh is required in the toolchain, independent of tcl-based graphv...

diff --git a/configure.ac b/configure.ac
index 20ee1677cba11e1951d0f556f789969ee7cc38c5..df00051502f432b8c0fe2167f98e44d2580d1eda 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -254,6 +254,18 @@ AC_CHECK_PROG(PS2PDF,ps2pdf,ps2pdf,false)
 AC_CHECK_PROG(PS2PDF,pstopdf,pstopdf,false)
 PKG_PROG_PKG_CONFIG
 
+AC_ARG_WITH(tclsh,
+  [AC_HELP_STRING([--with-tcl=PROG], [use a specific tclsh])],
+  TCLSH=$withval,)
+
+if test "x$TCLSH" = "x"; then
+  AC_PATH_PROGS(TCLSH,[tclsh8.5 tclsh8.4 tclsh8.3 tclsh])
+  if test "x$TCLSH" = "x"; then
+    AC_MSG_ERROR([Unable to find a tclsh. Tclsh is a required program for building graphviz, independent of wether tcl-based graphviz products are built])
+    use_tcl="No (tclsh unavailable)"
+  fi
+fi
+
 # are we building for windows?
 # (these tests must follow AC_ISC_POSIX)
 #AC_CYGWIN
@@ -1338,20 +1350,6 @@ if test "x$enable_tcl" != "xyes"; then
   use_tcl="No (disabled)"
 fi
 
-if test "x$use_tcl" = "x"; then
-  AC_ARG_WITH(tclsh,
-    [AC_HELP_STRING([--with-tcl=PROG], [use a specific tclsh])],
-    TCLSH=$withval,)
-
-  if test "x$TCLSH" = "x"; then
-    AC_PATH_PROGS(TCLSH,[tclsh8.5 tclsh8.4 tclsh8.3 tclsh])
-    if test "x$TCLSH" = "x"; then
-      AC_MSG_WARN([Unable to find a tclsh. The Tcl packages will not be built])
-      use_tcl="No (tclsh unavailable)"
-    fi
-  fi
-fi
-
 if test "x$use_tcl" = "x"; then
   TCL_VERSION_FOUND=`echo 'puts [[info tclversion]]' | $TCLSH`