diff --git a/.travis.yml b/.travis.yml
index d34306df..019dc8d9 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -14,10 +14,18 @@ matrix:
     - os: linux
       sudo: required
       dist: trusty
-      env: TESTOS="LINUX"
+      env: TESTOS="LINUX" TESTEXAMPLES=1 MAKETEST=1
+    - os: linux
+      sudo: required
+      dist: trusty
+      env: TESTOS="LINUX" FORTRAN_ONLY=1 SKIPDOXYGEN=1 SKIPSWIG=1 MAKETEST=0
+    - os: linux
+      sudo: required
+      dist: trusty
+      env: TESTOS="LINUX" SKIPDOXYGEN=1 SKIPSWIG=1 MAKETEST=0
     - os: osx
       sudo: required
-      env: TESTOS="OSX"
+      env: TESTOS="OSX" MAKETEST=1
 
 cache:
   pip: true
@@ -32,6 +40,6 @@ script:
   - cd Build
   - bash ../UnitTests/travis_run_cmake.sh
   - make
-  - make test
+  - if [ "$MAKETEST" = 1 ]; then make test; fi
   - cd ../UnitTests/
   - bash travis_check_examples.sh
diff --git a/CMakeLists.txt b/CMakeLists.txt
index b8c83869..409d73be 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,12 +4,19 @@ cmake_minimum_required (VERSION 3.2)
 project(NTPoly)
 set(CMAKE_VERBOSE_MAKEFILE ON)
 enable_language(Fortran)
+
+################################################################################
+## Packages
 find_package(MPI REQUIRED)
+find_package(Doxygen)
+find_package(SWIG 3.0)
 
 ################################################################################
 ## Testing
 if (NOT FORTRAN_ONLY)
   enable_testing()
+else()
+  MESSAGE("Fortran only! No local testing will be generated.")
 endif()
 
 ################################################################################
@@ -23,24 +30,15 @@ file(MAKE_DIRECTORY ${CMAKE_BINARY_DIR}/scratch)
 
 ################################################################################
 ## Documentation
-find_package(Doxygen REQUIRED)
-configure_file(${CMAKE_SOURCE_DIR}/Doxyfile.in
-               ${CMAKE_BINARY_DIR}/Doxyfile @ONLY)
-add_custom_target(doc ${DOXYGEN_EXECUTABLE} ${CMAKE_BINARY_DIR}/Doxyfile)
+if (DOXYGEN_FOUND)
+  configure_file(${CMAKE_SOURCE_DIR}/Doxyfile.in
+                 ${CMAKE_BINARY_DIR}/Doxyfile @ONLY)
+  add_custom_target(doc ${DOXYGEN_EXECUTABLE} ${CMAKE_BINARY_DIR}/Doxyfile)
+else()
+  MESSAGE("Doxygen not found! No documentation will be generated.")
+endif()
 
 ################################################################################
-## Toolchain File
-#if(CMAKE_BUILD_TYPE MATCHES Debug)
-#  set(CMAKE_Fortran_FLAGS_DEBUG ${F_TOOLCHAINFLAGS_DEBUG})
-#  set(CMAKE_CXX_FLAGS_DEBUG ${CXX_TOOLCHAINFLAGS_DEBUG})
-#elseif(CMAKE_BUILD_TYPE MATCHES Release)
-#  set(CMAKE_Fortran_FLAGS_RELEASE ${F_TOOLCHAINFLAGS_RELEASE})
-#  set(CMAKE_CXX_FLAGS_RELEASE ${CXX_TOOLCHAINFLAGS_RELEASE})
-#else()
-#  set(CMAKE_Fortran_FLAGS ${F_TOOLCHAINFLAGS_RELEASE})
-#  set(CMAKE_CXX_FLAGS ${CXX_TOOLCHAINFLAGS_RELEASE})
-#endif()
-
 set(CMAKE_Fortran_FLAGS_DEBUG ${F_TOOLCHAINFLAGS_DEBUG})
 set(CMAKE_CXX_FLAGS_DEBUG ${CXX_TOOLCHAINFLAGS_DEBUG})
 set(CMAKE_Fortran_FLAGS_RELEASE ${F_TOOLCHAINFLAGS_RELEASE})
diff --git a/ReadMe.md b/ReadMe.md
index ab715cdc..fc2deb75 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -16,6 +16,21 @@ repository. We of course recommend that you download a
 [release version](https://github.com/william-dawson/NTPoly/releases)
 to get started.
 
+Installing NTPoly requires the following software:
+* A Fortran Compiler.
+* An MPI Installation (MPI-3 Standard+).
+* CMake (Version 3.2+).
+
+The following optional software can greatly enhance the NTPoly experience:
+* BLAS: for multiplying dense matrices, if they emerge in the calculation.
+* A C++ Compiler for building C++ bindings.
+* Doxygen: for building documentation.
+* Python (Version 2.7+): for testing.
+* MPI4PY: for testing.
+* SciPy: for testing.
+* NumPy: for testing.
+* SWIG (Version 3.0+): for building the Python bindings.
+
 NTPoly uses CMake as a build system. First, take a look in the Targets
 directory. You'll find a list of `.cmake` files which have example configurations
 on popular systems. You should copy one of these files, and create your own
diff --git a/Source/Swig/CMakeLists.txt b/Source/Swig/CMakeLists.txt
index 2951a7c5..86f89a95 100644
--- a/Source/Swig/CMakeLists.txt
+++ b/Source/Swig/CMakeLists.txt
@@ -1,6 +1,4 @@
 ################################################################################
-FIND_PACKAGE(SWIG 3.0)
-
 if (SWIG_FOUND)
   # Determine python path using python's distutils module
   if(NOT DEFINED PYTHON_EXECUTABLE)
@@ -34,4 +32,6 @@ if (SWIG_FOUND)
     ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/python
     LIBRARY_OUTPUT_DIRECTORY  ${CMAKE_BINARY_DIR}/python
   )
+else()
+  MESSAGE("Swig not found! No python bindings will be generated.")
 endif()
diff --git a/UnitTests/travis_before_install.sh b/UnitTests/travis_before_install.sh
index 26740cac..d7731219 100644
--- a/UnitTests/travis_before_install.sh
+++ b/UnitTests/travis_before_install.sh
@@ -28,18 +28,22 @@ if [[ "$TESTOS" == "OSX" ]]; then
 else
   sudo ldconfig
   sudo apt-get install python-dev
-  sudo apt-get install doxygen
-  if [ -f "swig-3.0.12/README" ]; then
-    echo "Using cached swig";
-  else
-    wget https://downloads.sourceforge.net/swig/swig-3.0.12.tar.gz;
-    tar xvf swig-3.0.12.tar.gz >/dev/null;
+  if [[ -z ${SKIPDOXYGEN+x} ]]; then
+    sudo apt-get install doxygen
+  fi
+  if [[ -z ${SKIPSWIG+x} ]] ; then
+    if [ -f "swig-3.0.12/README" ]; then
+      echo "Using cached swig";
+    else
+      wget https://downloads.sourceforge.net/swig/swig-3.0.12.tar.gz;
+      tar xvf swig-3.0.12.tar.gz >/dev/null;
+    fi
+    cd swig-3.0.12;
+    ./configure >/dev/null 2>&1;
+    make >/dev/null 2>&1;
+    sudo make install >/dev/null 2>&1
+    cd ../
   fi
-  cd swig-3.0.12;
-  ./configure >/dev/null 2>&1;
-  make >/dev/null 2>&1;
-  sudo make install >/dev/null 2>&1
-  cd ../
   sudo pip install scipy --upgrade
   sudo pip install numpy --upgrade
   sudo pip install mpi4py --upgrade
diff --git a/UnitTests/travis_check_examples.sh b/UnitTests/travis_check_examples.sh
index 78d90d6b..64e805be 100644
--- a/UnitTests/travis_check_examples.sh
+++ b/UnitTests/travis_check_examples.sh
@@ -1,4 +1,6 @@
-if [[ "$TESTOS" == "LINUX" ]]; then
+if [ -z ${TESTEXAMPLES+x} ]; then
+  echo "Skipping examples"
+else
   python testBuildInstructions.py ../Examples/GraphTheory/ run-fortran
   python testBuildInstructions.py ../Examples/GraphTheory/ run-c++
   python testBuildInstructions.py ../Examples/GraphTheory/ run-python
diff --git a/UnitTests/travis_run_cmake.sh b/UnitTests/travis_run_cmake.sh
index 07e131b7..f6e70d05 100644
--- a/UnitTests/travis_run_cmake.sh
+++ b/UnitTests/travis_run_cmake.sh
@@ -1,5 +1,10 @@
 if [[ "$TESTOS" == "OSX" ]]; then
   cmake -DCMAKE_TOOLCHAIN_FILE=../Targets/Mac-python2.cmake .. ;
 else
-  cmake -DCMAKE_TOOLCHAIN_FILE=../Targets/Linux.cmake .. ;
+  if [ -z ${FORTRAN_ONLY+x} ]; then
+    cmake -DCMAKE_TOOLCHAIN_FILE=../Targets/Linux.cmake .. ;
+  else
+    cmake -DCMAKE_TOOLCHAIN_FILE=../Targets/Linux.cmake \
+          -DFORTRAN_ONLY=YES .. ;
+  fi
 fi