Mortis69/rendera — pull request #33 by rubicks (2014-12-23 20:36:19+00:00)
Title: fixes automake warnings for non-POSIX variable names

edits ```configure.ac```: adds variables for ```fltk-config --cxxflags```, ```fltk-config --lbflags```
edits ```Makefile.am```: replaces non-portable shell invocations with autoconf variables