When updating from 1.9.41 to 1.9.47, the commit
c5dfa6305e
adds a routine in the CMakeLists.txt to find the pthread library.
This routine is not suitable for the use with our tool chain, i.e.,
it reports an error (cf. #125) when using roscpp-native.
This commit adds a patch that reverts that change in roscpp's
CMakeLists.txt.
Lukas Bulwahn