AC_PROG_CC
AC_PROG_CXX
PKG_CHECK_MODULES([Eigen3], [eigen3])
PKG_CHECK_MODULES([GLEW], [glew])
AC_PROG_CC
AC_PROG_CXX
PKG_CHECK_MODULES([Eigen3], [eigen3])
PKG_CHECK_MODULES([GLEW], [glew])
# Needed for unit tests and the demo app.
PKG_CHECK_MODULES([SDL], [sdl])
# Needed for unit tests and the demo app.
PKG_CHECK_MODULES([SDL], [sdl])