Adding "build_options" to bpy.app, a frozenset containing strings matching optional feature's build defines (like 'FFMPEG', 'MOD_BOOLEAN', 'INTERNATIONAL', etc.) for all enabled elements.

Note I tried to select all interesting defines, but this might be extended if needed...

source/blender/python/intern/CMakeLists.txt

@@ -47,6 +47,7 @@ set(SRC
 	bpy.c
 	bpy_app.c
 	bpy_app_ffmpeg.c
+	bpy_app_build_options.c
 	bpy_app_handlers.c
 	bpy_driver.c
 	bpy_interface.c
@@ -68,6 +69,7 @@ set(SRC
 	bpy.h
 	bpy_app.h
 	bpy_app_ffmpeg.h
+	bpy_app_build_options.h
 	bpy_app_handlers.h
 	bpy_driver.h
 	bpy_intern_string.h
@@ -96,24 +98,136 @@ if(WITH_PYTHON_SAFETY)
 	add_definitions(-DWITH_PYTHON_SAFETY)
 endif()
 
+
+
 if(WITH_AUDASPACE)
 	add_definitions(-DWITH_AUDASPACE)
 endif()
 
-if(WITH_CYCLES)
-	add_definitions(-DWITH_CYCLES)
+if(WITH_BULLET)
+	add_definitions(-DWITH_BULLET)
 endif()
 
-if(WITH_INTERNATIONAL)
-	add_definitions(-DWITH_INTERNATIONAL)
+if(WITH_CODEC_AVI)
+	add_definitions(-DWITH_AVI)
 endif()
 
 if(WITH_CODEC_FFMPEG)
 	list(APPEND INC_SYS
 		${FFMPEG_INCLUDE_DIRS}
 	)
-
 	add_definitions(-DWITH_FFMPEG)
 endif()
 
+if(WITH_CODEC_QUICKTIME)
+	add_definitions(-DWITH_QUICKTIME)
+endif()
+
+if(WITH_CODEC_SNDFILE)
+	add_definitions(-DWITH_SNDFILE)
+endif()
+
+if(WITH_COMPOSITOR)
+	add_definitions(-DWITH_COMPOSITOR)
+endif()
+
+if(WITH_CYCLES)
+	add_definitions(-DWITH_CYCLES)
+endif()
+
+if(WITH_CYCLES_OSL)
+	add_definitions(-DWITH_CYCLES_OSL)
+endif()
+
+if(WITH_GAMEENGINE)
+	add_definitions(-DWITH_GAMEENGINE)
+endif()
+
+if(WITH_IMAGE_CINEON)
+	add_definitions(-DWITH_CINEON)
+endif()
+
+if(WITH_IMAGE_DDS)
+	add_definitions(-DWITH_DDS)
+endif()
+
+if(WITH_IMAGE_FRAMESERVER)
+	add_definitions(-DWITH_FRAMESERVER)
+endif()
+
+if(WITH_IMAGE_HDR)
+	add_definitions(-DWITH_HDR)
+endif()
+
+if(WITH_IMAGE_OPENEXR)
+	add_definitions(-DWITH_OPENEXR)
+endif()
+
+if(WITH_IMAGE_OPENJPEG)
+	add_definitions(-DWITH_OPENJPEG)
+endif()
+
+if(WITH_IMAGE_REDCODE)
+	add_definitions(-DWITH_REDCODE)
+endif()
+
+if(WITH_IMAGE_TIFF)
+	add_definitions(-DWITH_TIFF)
+endif()
+
+if(WITH_INPUT_NDOF)
+	add_definitions(-DWITH_INPUT_NDOF)
+endif()
+
+if(WITH_INTERNATIONAL)
+	add_definitions(-DWITH_INTERNATIONAL)
+endif()
+
+if(WITH_JACK)
+	add_definitions(-DWITH_JACK)
+endif()
+
+if(WITH_LIBMV)
+	add_definitions(-DWITH_LIBMV)
+endif()
+
+if(WITH_LIBMV)
+	add_definitions(-DWITH_LIBMV)
+endif()
+
+if(WITH_MOD_BOOLEAN)
+	add_definitions(-DWITH_MOD_BOOLEAN)
+endif()
+
+if(WITH_MOD_FLUID)
+	add_definitions(-DWITH_MOD_FLUID)
+endif()
+
+if(WITH_MOD_OCEANSIM)
+	add_definitions(-DWITH_OCEANSIM)
+endif()
+
+if(WITH_MOD_REMESH)
+	add_definitions(-DWITH_MOD_REMESH)
+endif()
+
+if(WITH_MOD_SMOKE)
+	add_definitions(-DWITH_SMOKE)
+endif()
+
+if(WITH_OPENAL)
+	add_definitions(-DWITH_OPENAL)
+endif()
+
+if(WITH_OPENCOLLADA)
+	add_definitions(-DWITH_COLLADA)
+endif()
+
+if(WITH_PLAYER)
+	add_definitions(-DWITH_PLAYER)
+endif()
+
+
+
+
 blender_add_lib(bf_python "${SRC}" "${INC}" "${INC_SYS}")

source/blender/python/intern/bpy_app.c

@@ -34,6 +34,7 @@
 #include "bpy_app.h"
 
 #include "bpy_app_ffmpeg.h"
+#include "bpy_app_build_options.h"
 
 #include "bpy_app_handlers.h"
 #include "bpy_driver.h"
@@ -83,6 +84,7 @@ static PyStructSequence_Field app_info_fields[] = {
 
 	/* submodules */
 	{(char *)"ffmpeg", (char *)"FFmpeg library information backend"},
+	{(char *)"build_options", (char *)"A set containing most important enabled optional build features"},
 	{(char *)"handlers", (char *)"Application handler callbacks"},
 	{NULL}
 };
@@ -148,6 +150,7 @@ static PyObject *make_app_info(void)
 #endif
 
 	SetObjItem(BPY_app_ffmpeg_struct());
+	SetObjItem(BPY_app_build_options_struct());
 	SetObjItem(BPY_app_handlers_struct());
 
 #undef SetIntItem

source/blender/python/intern/bpy_app_build_options.c

@@ -0,0 +1,176 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Bastien Montagne
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/python/intern/bpy_app_build_options.c
+ *  \ingroup pythonintern
+ */
+
+#include <Python.h>
+#include "BLI_utildefines.h"
+
+#include "bpy_app_build_options.h"
+
+static PyObject *make_build_options(void)
+{
+	PyObject *build_options = PyFrozenSet_New(NULL);
+
+#define SetStrItem(str) \
+	PySet_Add(build_options, PyUnicode_FromString(str));
+
+#ifdef WITH_AUDASPACE
+	SetStrItem("AUDASPACE");
+#endif
+
+#ifdef WITH_BULLET
+	SetStrItem("BULLET");
+#endif
+
+#ifdef WITH_AVI
+	SetStrItem("CODEC_AVI");
+#endif
+
+#ifdef WITH_FFMPEG
+	SetStrItem("CODEC_FFMPEG");
+#endif
+
+#ifdef WITH_QUICKTIME
+	SetStrItem("CODEC_QUICKTIME");
+#endif
+
+#ifdef WITH_SNDFILE
+	SetStrItem("CODEC_SNDFILE");
+#endif
+
+#ifdef WITH_COMPOSITOR
+	SetStrItem("COMPOSITOR");
+#endif
+
+#ifdef WITH_CYCLES
+	SetStrItem("CYCLES");
+#endif
+
+#ifdef WITH_CYCLES_OSL
+	SetStrItem("CYCLES_OSL");
+#endif
+
+#ifdef WITH_GAMEENGINE
+	SetStrItem("GAMEENGINE");
+#endif
+
+#ifdef WITH_CINEON
+	SetStrItem("IMAGE_CINEON");
+#endif
+
+#ifdef WITH_DDS
+	SetStrItem("IMAGE_DDS");
+#endif
+
+#ifdef WITH_FRAMESERVER
+	SetStrItem("IMAGE_FRAMESERVER");
+#endif
+
+#ifdef WITH_HDR
+	SetStrItem("IMAGE_HDR");
+#endif
+
+#ifdef WITH_OPENEXR
+	SetStrItem("IMAGE_OPENEXR");
+#endif
+
+#ifdef WITH_OPENJPEG
+	SetStrItem("IMAGE_OPENJPEG");
+#endif
+
+#ifdef WITH_REDCODE
+	SetStrItem("IMAGE_REDCODE");
+#endif
+
+#ifdef WITH_TIFF
+	SetStrItem("IMAGE_TIFF");
+#endif
+
+#ifdef WITH_INPUT_NDOF
+	SetStrItem("INPUT_NDOF");
+#endif
+
+#ifdef WITH_INTERNATIONAL
+	SetStrItem("INTERNATIONAL");
+#endif
+
+#ifdef WITH_JACK
+	SetStrItem("JACK");
+#endif
+
+#ifdef WITH_LIBMV
+	SetStrItem("LIBMV");
+#endif
+
+#ifdef WITH_MOD_BOOLEAN
+	SetStrItem("MOD_BOOLEAN");
+#endif
+
+#ifdef WITH_MOD_FLUID
+	SetStrItem("MOD_FLUID");
+#endif
+
+#ifdef WITH_OCEANSIM
+	SetStrItem("MOD_OCEANSIM");
+#endif
+
+#ifdef WITH_MOD_REMESH
+	SetStrItem("MOD_REMESH");
+#endif
+
+#ifdef WITH_SMOKE
+	SetStrItem("MOD_SMOKE");
+#endif
+
+#ifdef WITH_OPENAL
+	SetStrItem("OPENAL");
+#endif
+
+#ifdef WITH_COLLADA
+	SetStrItem("COLLADA");
+#endif
+
+#ifdef WITH_PLAYER
+	SetStrItem("PLAYER");
+#endif
+
+#undef SetStrItem
+
+	if (PyErr_Occurred()) {
+		Py_CLEAR(build_options);
+		return NULL;
+	}
+
+	return build_options;
+}
+
+PyObject *BPY_app_build_options_struct(void)
+{
+	PyObject *ret;
+
+	ret = make_build_options();
+
+	return ret;
+}

source/blender/python/intern/bpy_app_build_options.h

@@ -0,0 +1,32 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * 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, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * Contributor(s): Bastien Montagne
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/python/intern/bpy_app_build_options.h
+ *  \ingroup pythonintern
+ */
+
+#ifndef __BPY_APP_BUILD_OPTIONS_H__
+#define __BPY_APP_BUILD_OPTIONS_H__
+
+PyObject *BPY_app_build_options_struct(void);
+
+#endif  /* __BPY_APP_BUILD_OPTIONS_H__ */