From 957ad6934d5a7f1d0172bf5b200897839cc3a813 Mon Sep 17 00:00:00 2001
From: David Protzman <NotTelling@NoThanks.Poop>
Date: Thu, 23 Jun 2022 22:17:31 -0400
Subject: [PATCH] Added CMake config option for MATLAB install directory

---
 gnuradio/gr-droneid/CMakeLists.txt     |  2 ++
 gnuradio/gr-droneid/lib/CMakeLists.txt | 27 +++++++++++++++++++++++---
 2 files changed, 26 insertions(+), 3 deletions(-)

diff --git a/gnuradio/gr-droneid/CMakeLists.txt b/gnuradio/gr-droneid/CMakeLists.txt
index 72e338d..204acff 100644
--- a/gnuradio/gr-droneid/CMakeLists.txt
+++ b/gnuradio/gr-droneid/CMakeLists.txt
@@ -25,6 +25,8 @@ cmake_minimum_required(VERSION 3.8)
 project(gr-droneid CXX C)
 enable_testing()
 
+set(MATLAB_PATH "" CACHE STRING "Path to MATLAB installation")
+
 # Install to PyBOMBS target prefix if defined
 if(DEFINED ENV{PYBOMBS_PREFIX})
     set(CMAKE_INSTALL_PREFIX $ENV{PYBOMBS_PREFIX})
diff --git a/gnuradio/gr-droneid/lib/CMakeLists.txt b/gnuradio/gr-droneid/lib/CMakeLists.txt
index 3b65835..78f226c 100644
--- a/gnuradio/gr-droneid/lib/CMakeLists.txt
+++ b/gnuradio/gr-droneid/lib/CMakeLists.txt
@@ -81,10 +81,31 @@ include(GrTest)
 #include_directories()
 # List all files that contain Boost.UTF unit tests here
 list(APPEND test_droneid_sources
-        qa_normalized_xcorr.cc
-        qa_normalized_xcorr_estimate.cc
-        qa_variance.cc
+    qa_normalized_xcorr_estimate.cc
 )
+
+if (MATLAB_PATH)
+    message(STATUS "Using MATLAB path '${MATLAB_PATH}'")
+
+    if (NOT IS_DIRECTORY ${MATLAB_PATH})
+        message(FATAL_ERROR "MATLAB path '${MATLAB_PATH}' does not exist or is not a directory.  Please fix or remove")
+    endif()
+
+    # Add paths to MATLAB libraries and headers
+    target_link_directories(gnuradio-droneid PUBLIC ${MATLAB_PATH}/extern/bin/glnxa64)
+    target_include_directories(gnuradio-droneid PUBLIC PUBLIC ${MATLAB_PATH}/extern/include)
+
+    # Add MATLAB library dependencies
+    target_link_libraries(gnuradio-droneid MatlabEngine MatlabDataArray)
+
+    list(APPEND test_droneid_sources
+        qa_variance.cc
+        qa_normalized_xcorr.cc
+    )
+else()
+    message(WARNING "No MATLAB path specified, so some tests will be skipped")
+endif()
+
 # Anything we need to link to for the unit tests go here
 list(APPEND GR_TEST_TARGET_DEPS gnuradio-droneid)