[Mesa-dev] [PATCH v3 13/24] configure: require python mako module

[Iago Toral Quiroga]

From: Samuel Iglesias Gonsalvez <siglesias at igalia.com>

It is now a hard dependency because of the autogeneration of
format pack and unpack functions.

Update the documentation to reflect this change.

v2:
- Inline python script in m4 file and use PYTHON2

Signed-off-by: Samuel Iglesias Gonsalvez <siglesias at igalia.com>
---
 configure.ac                      |  2 +
 docs/install.html                 |  6 ++-
 m4/ax_check_python_mako_module.m4 | 77 +++++++++++++++++++++++++++++++++++++++
 3 files changed, 84 insertions(+), 1 deletion(-)
 create mode 100644 m4/ax_check_python_mako_module.m4

diff --git a/configure.ac b/configure.ac
index 1d9d015..f38acfd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -76,6 +76,8 @@ if test "x$INDENT" != "xcat"; then
     AC_SUBST(INDENT_FLAGS, '-i4 -nut -br -brs -npcs -ce -TGLubyte -TGLbyte -TBool')
 fi
 
+AC_CHECK_PYTHON_MAKO_MODULE(0.7.3)
+
 AC_PROG_INSTALL
 
 dnl We need a POSIX shell for parts of the build. Assume we have one
diff --git a/docs/install.html b/docs/install.html
index f12425f..b12e1cb 100644
--- a/docs/install.html
+++ b/docs/install.html
@@ -38,6 +38,10 @@
 Version 2.6.4 or later should work.
 </li>
 <br>
+<li><a href="http://www.makotemplates.org/">Python Mako module</a> -
+Python Mako module is required. Version 0.7.3 or later should work.
+</li>
+</br>
 <li><a href="http://www.scons.org/">SCons</a> is required for building on
 Windows and optional for Linux (it's an alternative to autoconf/automake.)
 </li>
@@ -78,7 +82,7 @@ the needed dependencies:
 <pre>
   sudo yum install flex bison imake libtool xorg-x11-proto-devel libdrm-devel \
   gcc-c++ xorg-x11-server-devel libXi-devel libXmu-devel libXdamage-devel git \
-  expat-devel llvm-devel
+  expat-devel llvm-devel python-mako
 </pre>
 
 
diff --git a/m4/ax_check_python_mako_module.m4 b/m4/ax_check_python_mako_module.m4
new file mode 100644
index 0000000..f289f26
--- /dev/null
+++ b/m4/ax_check_python_mako_module.m4
@@ -0,0 +1,77 @@
+# ===========================================================================
+#
+# SYNOPSIS
+#
+#   AX_CHECK_PYTHON_MAKO_MODULE(MIN_VERSION_NUMBER)
+#
+# DESCRIPTION
+#
+#   Check whether Python mako module is installed and its version higher than
+#   minimum requested.
+#
+#   Example of its use:
+#
+#   For example, the minimum mako version would be 0.7.3. Then configure.ac
+#   would contain:
+#
+#   AC_CHECK_PYTHON_MAKO_MODULE(0.7.3)
+#
+# LICENSE
+#
+#   Copyright (c) 2014 Intel Corporation.
+#
+#   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 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.
+
+dnl macro that checks for mako module in python
+AC_DEFUN([AC_CHECK_PYTHON_MAKO_MODULE],
+[AC_MSG_CHECKING(if module mako in python is installed)
+    echo "
+try:
+    import sys
+    import mako
+except ImportError as err:
+    sys.exit(err)
+else:
+    ver_min_req_str = str('$1');
+    ver_min_req = ver_min_req_str.split('.');
+    ver_str = mako.__version__
+    ver = ver_str.split('.')
+
+    for i in range(len(ver)):
+        ver_int = int(ver[[i]])
+        ver_min_req_int = int(ver_min_req[[i]]);
+        if ver_int < ver_min_req_int:
+            sys.exit(1);
+        if ver_int > ver_min_req_int:
+            sys.exit(0);
+    sys.exit(0);" | $PYTHON2 -
+    if test $? -ne 0 ; then
+       AC_MSG_ERROR(mako $1 or later is required.)
+    else
+        AC_MSG_RESULT(yes)
+    fi
+])
-- 
1.9.1