Try fixing cross-python issues

Author: Tobias-Fischer

vinca/templates/build_catkin.sh.in

@@ -19,23 +19,22 @@ export LINK=$CXX
 
 if [[ "$CONDA_BUILD_CROSS_COMPILATION" != "1" ]]; then
   PYTHON_EXECUTABLE=$PREFIX/bin/python
-else
-  PYTHON_EXECUTABLE=$BUILD_PREFIX/bin/python
-fi
-echo "USING PYTHON_EXECUTABLE=${PYTHON_EXECUTABLE}"
-
-
-if [[ "$CONDA_BUILD_CROSS_COMPILATION" != "1" ]]; then
   PKG_CONFIG_EXECUTABLE=$PREFIX/bin/pkg-config
 else
+  PYTHON_EXECUTABLE=$BUILD_PREFIX/bin/python
   PKG_CONFIG_EXECUTABLE=$BUILD_PREFIX/bin/pkg-config
 fi
+echo "USING PYTHON_EXECUTABLE=${PYTHON_EXECUTABLE}"
 echo "USING PKG_CONFIG_EXECUTABLE=${PKG_CONFIG_EXECUTABLE}"
 
-
 export ROS_PYTHON_VERSION=`$PYTHON_EXECUTABLE -c "import sys; print('%i.%i' % (sys.version_info[0:2]))"`
 echo "Using Python $ROS_PYTHON_VERSION"
 
+# see https://github.com/conda-forge/cross-python-feedstock/issues/24
+if [[ "$CONDA_BUILD_CROSS_COMPILATION" == "1" ]]; then
+  find $PREFIX/lib/cmake -type f -exec sed -i "s~\${_IMPORT_PREFIX}/lib/python$ROS_PYTHON_VERSION/site-packages~$BUILD_PREFIX/lib/python$ROS_PYTHON_VERSION/site-packages~g" {} +
+fi
+
 # NOTE: there might be undefined references occurring
 # in the Boost.system library, depending on the C++ versions
 # used to compile Boost. We can avoid them by forcing the use of