fix a really subtle linux/boost-python crash related to exception handling -> link to libstdc++ before any other libraries

build/config-linux-debug.py

@@ -6,7 +6,7 @@ CXX            = 'g++'
 CC             = 'gcc'
 CXXFLAGS       = ['-O0', '-Wall', '-g', '-pipe', '-march=nocona', '-msse2', '-ftree-vectorize', '-mfpmath=sse', '-funsafe-math-optimizations', '-fno-rounding-math', '-fno-signaling-nans', '-fomit-frame-pointer', '-DMTS_DEBUG', '-DSINGLE_PRECISION', '-DSPECTRUM_SAMPLES=3', '-DMTS_SSE', '-DMTS_HAS_COHERENT_RT', '-fopenmp']
 LINKFLAGS      = []
-SHLINKFLAGS    = ['-rdynamic', '-shared', '-fPIC']
+SHLINKFLAGS    = ['-rdynamic', '-shared', '-fPIC', '-lstdc++']
 BASEINCLUDE    = ['#include']
 BASELIB        = ['dl', 'm', 'pthread', 'gomp']
 OEXRINCLUDE    = ['/usr/include/OpenEXR']

build/config-linux.py

@@ -6,7 +6,7 @@ CXX            = 'g++'
 CC             = 'gcc'
 CXXFLAGS       = ['-O3', '-Wall', '-g', '-pipe', '-march=nocona', '-msse2', '-ftree-vectorize', '-mfpmath=sse', '-funsafe-math-optimizations', '-fno-rounding-math', '-fno-signaling-nans', '-fomit-frame-pointer', '-DMTS_DEBUG', '-DSINGLE_PRECISION', '-DSPECTRUM_SAMPLES=3', '-DMTS_SSE', '-DMTS_HAS_COHERENT_RT', '-fopenmp']
 LINKFLAGS      = []
-SHLINKFLAGS    = ['-rdynamic', '-shared', '-fPIC']
+SHLINKFLAGS    = ['-rdynamic', '-shared', '-fPIC', '-lstdc++']
 BASEINCLUDE    = ['#include']
 BASELIB        = ['dl', 'm', 'pthread', 'gomp']
 OEXRINCLUDE    = ['/usr/include/OpenEXR']

doc/main.tex

@@ -125,6 +125,8 @@
 	{}
 \lstnewenvironment{cpp}[1][]{\lstset{language=c++, #1}}
 	{}
+\lstnewenvironment{python}[1][]{\lstset{language=python, #1}}
+	{}
 \lstnewenvironment{xml}[1][]{\lstset{language=xml, #1}}
 	{}
 \lstnewenvironment{console}[1][]{\lstset{basicstyle=\footnotesize\ttfamily, float, #1}}
@@ -155,6 +157,7 @@
 %\include{development}
 %\include{integrator}
 %\include{parallelization}
+\include{python}
 \include{acknowledgements}
 
 \bibliographystyle{acm}

doc/python.tex

@@ -0,0 +1,23 @@
+\section{Python integration}
+\label{sec:python}
+A recent feature of Mitsuba is a simple Python interface to the renderer API. 
+While the interface is still limited at this point, it can already be
+used for simple automation tasks. To access the API, start your Python 
+interpreter and run
+\begin{python}
+import mitsuba
+\end{python}
+For this to work on MacOS X, you will first have to run the ``\emph{Apple
+Menu}$\to$\emph{Command-line Access}'' menu item from within Mitsuba.
+On Windows and non-packaged Linux builds, you must update the extension
+search path before the \code{import} command is issued:
+\begin{python}
+import sys
+
+# Update the extension search path
+# (may vary depending on your setup)
+sys.path.append('dist/python')
+
+import mitsuba
+\end{python}
+

src/libpython/core.cpp

@@ -530,6 +530,7 @@ void export_core() {
 		.def("trace", &Matrix4x4::trace)
 		.def("det", &Matrix4x4::det)
 		.def("serialize", &Matrix4x4::serialize)
+		.def("transpose", &Matrix4x4::transpose)
 		.def(bp::self != bp::self)
 		.def(bp::self == bp::self)
 		.def(-bp::self)
@@ -554,8 +555,10 @@ BOOST_PYTHON_MODULE(mitsuba) {
 	bp::object package = bp::scope();
 	package.attr("__path__") = "mitsuba";
 
-	bp::def("initializeFramework", initializeFramework);
-	bp::def("shutdownFramework", shutdownFramework);
+	/* Automatically take care of the framework
+	   initialization / shutdown */
+	initializeFramework();
+	atexit(shutdownFramework);
 
 	export_core();
 }