From 39a50c763240da578a05a6b651776804786d813a Mon Sep 17 00:00:00 2001
From: Piotr Krysik <perper@o2.pl>
Date: Tue, 7 Apr 2009 12:47:18 +0200
Subject: Added files from gr-howto-write-a-block

---
 config/gr_python.m4 | 111 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 111 insertions(+)
 create mode 100644 config/gr_python.m4

(limited to 'config/gr_python.m4')

diff --git a/config/gr_python.m4 b/config/gr_python.m4
new file mode 100644
index 0000000..5816b27
--- /dev/null
+++ b/config/gr_python.m4
@@ -0,0 +1,111 @@
+dnl
+dnl Copyright 2003,2004,2005 Free Software Foundation, Inc.
+dnl 
+dnl This file is part of GNU Radio
+dnl 
+dnl GNU Radio is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 3, or (at your option)
+dnl any later version.
+dnl 
+dnl GNU Radio is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+dnl GNU General Public License for more details.
+dnl 
+dnl You should have received a copy of the GNU General Public License
+dnl along with GNU Radio; see the file COPYING.  If not, write to
+dnl the Free Software Foundation, Inc., 51 Franklin Street,
+dnl Boston, MA 02110-1301, USA.
+dnl 
+
+# PYTHON_DEVEL()
+#
+# Checks for Python and tries to get the include path to 'Python.h'.
+# It provides the $(PYTHON_CPPFLAGS) and $(PYTHON_LDFLAGS) output variables.
+#
+AC_DEFUN([PYTHON_DEVEL],[
+	AC_REQUIRE([AM_PATH_PYTHON])
+	AC_REQUIRE([AC_CANONICAL_HOST])
+
+	# For Fedora Core 5 and 6, see ticket:39 in Trac
+	if test -f '/etc/redhat-release'; then
+		if  (echo $pyexecdir | grep -q lib64); then
+			pythondir="$pyexecdir"
+		fi
+	fi
+
+	# Check for Python include path
+	AC_MSG_CHECKING([for Python include path])
+	if test -z "$PYTHON" ; then
+		AC_MSG_ERROR([cannot find Python path])
+	fi
+
+	# ask distutils which include path we should use
+	python_cmd='
+import distutils.sysconfig
+import os
+path = distutils.sysconfig.get_python_inc(plat_specific=False)
+if os.sep == "\\":
+  path = path.replace("\\", "/")
+print path
+'
+	python_path=`$PYTHON -c "$python_cmd"`
+	AC_MSG_RESULT([$python_path])
+	if test -z "$python_path" ; then
+		AC_MSG_ERROR([cannot find Python include path])
+	fi
+
+	AC_SUBST(PYTHON_CPPFLAGS,[-I$python_path])
+
+	# Check for Python headers usability
+	python_save_CPPFLAGS=$CPPFLAGS
+	CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
+	AC_CHECK_HEADERS([Python.h], [],
+			[AC_MSG_ERROR([cannot find usable Python headers])])
+	CPPFLAGS="$python_save_CPPFLAGS"
+
+	# Only set this on mingw and cygwin hosts, (only implemented
+	# for mingw host, for crosscompiling you need to trick this)
+
+	PYTHON_LDFLAGS=""
+	case $host_os in
+	     *mingw* | *cygwin* )
+	  AC_MSG_CHECKING([for Python LDFLAGS])
+
+        python_cmd='
+import distutils.sysconfig
+import os
+path = distutils.sysconfig.get_config_var("LIBPL")
+if path == None:
+  path = distutils.sysconfig.PREFIX + "/libs"
+if os.sep == "\\":
+  path = path.replace("\\", "/")
+print path
+'      
+	  python_stdlib_path=`$PYTHON -c "$python_cmd"`
+
+	  python_version_nodot=`echo $PYTHON_VERSION | sed "s,\.,,"`
+	  libpython_name="python$PYTHON_VERSION"
+
+	  # Standard install of python for win32 has libpython24.a
+	  # instead of libpython2.4.a so we check for the library
+	  # without the dot in the version number.
+
+	  python_stdlib_filename=`find $python_stdlib_path -type f -name libpython$python_version_nodot.* -print | sed "1q"`
+	  if test -n "$python_stdlib_filename" ; then
+	  	libpython_name="python$python_version_nodot"
+	  fi
+
+          PYTHON_LDFLAGS="-L$python_stdlib_path -l$libpython_name"
+          AC_MSG_RESULT($PYTHON_LDFLAGS) 
+          # Replace all backslashes in PYTHON Paths with forward slashes
+          pythondir=`echo $pythondir |sed 's,\\\\,/,g'`
+          pkgpythondir=`echo $pkgpythondir |sed 's,\\\\,/,g'`
+          pyexecdir=`echo $pyexecdir |sed 's,\\\\,/,g'`
+          pkgpyexecdir=`echo $pkgpyexecdir |sed 's,\\\\,/,g'`
+	  ;;
+        esac
+
+	AC_SUBST([PYTHON_LDFLAGS])
+])
-- 
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