Now that part of the build uses just Python, break apart the Python

and Pyrex (only required for bindings) checks.

svn path=/trunk/yasm/; revision=1948

configure.ac

@@ -54,13 +54,21 @@ AC_HELP_STRING([--enable-gcov],[Enable gcov code coverage (requires GCC)]),
 esac])
 
 AC_ARG_ENABLE(python,
-AC_HELP_STRING([--enable-python],[Build Python bindings]),
+AC_HELP_STRING([--enable-python],[Enable Python-requiring portions of build]),
 [case "${enableval}" in
   yes) enable_python="yes" ;;
   no)  enable_python="no" ;;
   *) AC_MSG_ERROR([bad value ${enableval} for --enable-python]) ;;
 esac], enable_python="auto")
 
+AC_ARG_ENABLE(python-bindings,
+AC_HELP_STRING([--enable-python-bindings],[Build Python bindings]),
+[case "${enableval}" in
+  yes) enable_python_bindings="yes" ;;
+  no)  enable_python_bindings="no" ;;
+  *) AC_MSG_ERROR([bad value ${enableval} for --enable-python-bindings]) ;;
+esac], enable_python_bindings="auto")
+
 #
 # Checks for programs.
 #
@@ -245,18 +253,37 @@ AC_SUBST(CCLD_FOR_BUILD)
 HOST_CC="$CC_FOR_BUILD"
 AC_SUBST(HOST_CC)
 
-# Detect if we can build Python bindings
-# (needs Python, Python headers, and Pyrex)
+# Detect if we have Python
 if test x$enable_python = xno; then
     have_python=no
 else
-    AC_MSG_NOTICE([Checking to see if we can build Python bindings])
+    AC_MSG_NOTICE([Checking for Python])
     have_python=no
     AM_PATH_PYTHON(2.4,[],[AC_MSG_WARN([Python not found])])
 
     if test -z "$PYTHON" || test "$PYTHON" = : ; then
         have_python=no
     else
+        have_python=yes
+    fi
+
+    if test x$have_python = xno ; then
+        if test x$enable_python = xyes ; then
+            AC_MSG_ERROR([Python explicitly requested, but a suitable Python version was not found])
+        else
+            AC_MSG_WARN([Could not find a suitable version of Python])
+        fi
+    fi
+fi
+
+# Detect if we can build Python bindings
+# (needs Python, Python headers, and Pyrex)
+if test x$enable_python_bindings = xno; then
+    have_python_bindings=no
+else
+    AC_MSG_NOTICE([Checking to see if we can build Python bindings])
+    have_python_bindings=no
+    if test x$have_python = xyes; then
         AC_MSG_CHECKING([for Pyrex >= 0.9.5.1])
         PYREX_CHECK_VERSION(0.9.5.1, [AC_MSG_RESULT(yes)
                                       have_pyrex=yes],
@@ -265,21 +292,22 @@ else
 
         AM_CHECK_PYTHON_HEADERS(have_python_headers=yes,have_python_headers=no)
 
-	if test x$have_pyrex = xyes -a x$have_python_headers = xyes ; then
-	    have_python=yes
+        if test x$have_pyrex = xyes -a x$have_python_headers = xyes ; then
+            have_python_bindings=yes
         fi
     fi
 
-    if test x$have_python = xno ; then
-        if test x$enable_python = xyes ; then
-            AC_MSG_ERROR([Building Python explicitly requested, but can't build Python bindings because either Pyrex, Python headers or a suitable Python version was not found])
+    if test x$have_python_bindings = xno ; then
+        if test x$enable_python_bindings = xyes ; then
+            AC_MSG_ERROR([Building Python bindings explicitly requested, but can't build Python bindings because either Pyrex, Python headers or a suitable Python version was not found])
         else
             AC_MSG_WARN([Couldn't find either Pyrex, the Python headers or a suitable version of Python, not building Python bindings])
         fi
-    fi               
+    fi
 fi
 
 AM_CONDITIONAL(HAVE_PYTHON, test x$have_python = xyes)
+AM_CONDITIONAL(HAVE_PYTHON_BINDINGS, test x$have_python_bindings = xyes)
 
 AC_CONFIG_FILES([Makefile
 	po/Makefile.in

tools/python-yasm/Makefile.inc

@@ -20,7 +20,7 @@ EXTRA_DIST += tools/python-yasm/setup.py
 EXTRA_DIST += tools/python-yasm/yasm.pyx
 EXTRA_DIST += $(PYBINDING_DEPS)
 
-if HAVE_PYTHON
+if HAVE_PYTHON_BINDINGS
 
 # Use Pyxelator to generate Pyrex function headers.
 _yasm.pxi: ${HEADERS}