Merge commit 'v3.3.0' into upstream

[debian/gnuradio] / gr-howto-write-a-block / config / ax_boost_python.m4

diff --git a/gr-howto-write-a-block/config/ax_boost_python.m4 b/gr-howto-write-a-block/config/ax_boost_python.m4
new file mode 100644 (file)
index 0000000..3c6c666
--- /dev/null
+++ b/gr-howto-write-a-block/config/ax_boost_python.m4
@@ -0,0 +1,92 @@
+# ===========================================================================
+#            http://autoconf-archive.cryp.to/ax_boost_python.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_BOOST_PYTHON
+#
+# DESCRIPTION
+#
+#   This macro checks to see if the Boost.Python library is installed. It
+#   also attempts to guess the currect library name using several attempts.
+#   It tries to build the library name using a user supplied name or suffix
+#   and then just the raw library.
+#
+#   If the library is found, HAVE_BOOST_PYTHON is defined and
+#   BOOST_PYTHON_LIB is set to the name of the library.
+#
+#   This macro calls AC_SUBST(BOOST_PYTHON_LIB).
+#
+#   In order to ensure that the Python headers are specified on the include
+#   path, this macro requires AX_PYTHON to be called.
+#
+# LAST MODIFICATION
+#
+#   2008-04-12
+#
+# COPYLEFT
+#
+#   Copyright (c) 2008 Michael Tindal
+#
+#   This program is free software; you can redistribute it and/or modify it
+#   under the terms of the GNU General Public License as published by the
+#   Free Software Foundation; either version 2 of the License, or (at your
+#   option) any later version.
+#
+#   This program is distributed in the hope that it will be useful, but
+#   WITHOUT ANY WARRANTY; without even the implied warranty of
+#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+#   Public License for more details.
+#
+#   You should have received a copy of the GNU General Public License along
+#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+#   As a special exception, the respective Autoconf Macro's copyright owner
+#   gives unlimited permission to copy, distribute and modify the configure
+#   scripts that are the output of Autoconf when processing the Macro. You
+#   need not follow the terms of the GNU General Public License when using
+#   or distributing such scripts, even though portions of the text of the
+#   Macro appear in them. The GNU General Public License (GPL) does govern
+#   all other use of the material that constitutes the Autoconf Macro.
+#
+#   This special exception to the GPL applies to versions of the Autoconf
+#   Macro released by the Autoconf Macro Archive. When you make and
+#   distribute a modified version of the Autoconf Macro, you may extend this
+#   special exception to the GPL to apply to your modified version as well.
+
+AC_DEFUN([AX_BOOST_PYTHON],
+[AC_REQUIRE([AX_PYTHON])dnl
+AC_CACHE_CHECK(whether the Boost::Python library is available,
+ac_cv_boost_python,
+[AC_LANG_SAVE
+ AC_LANG_CPLUSPLUS
+ CPPFLAGS_SAVE=$CPPFLAGS
+ if test x$PYTHON_INCLUDE_DIR != x; then
+   CPPFLAGS=-I$PYTHON_INCLUDE_DIR $CPPFLAGS
+ fi
+ AC_COMPILE_IFELSE(AC_LANG_PROGRAM([[
+ #include <boost/python/module.hpp>
+ using namespace boost::python;
+ BOOST_PYTHON_MODULE(test) { throw "Boost::Python test."; }]],
+               [[return 0;]]),
+               ac_cv_boost_python=yes, ac_cv_boost_python=no)
+ AC_LANG_RESTORE
+ CPPFLAGS=$CPPFLAGS_SAVE
+])
+if test "$ac_cv_boost_python" = "yes"; then
+  AC_LANG_PUSH([C++])
+  AC_DEFINE(HAVE_BOOST_PYTHON,,[define if the Boost::Python library is available])
+  ax_python_lib=boost_python
+  AC_ARG_WITH([boost-python],AS_HELP_STRING([--with-boost-python],[specify the boost python library or suffix to use]),
+  [if test "x$with_boost_python" != "xno"; then
+     ax_python_lib=$with_boost_python
+     ax_boost_python_lib=boost_python-$with_boost_python
+   fi])
+  for ax_lib in $ax_python_lib $ax_boost_python_lib boost_python; do
+    AC_CHECK_LIB($ax_lib, exit, [BOOST_PYTHON_LIB=$ax_lib break])
+  done
+  AC_SUBST(BOOST_PYTHON_LIB)
+  AC_LANG_POP([C++])
+fi
+])dnl