https://src.fedoraproject.org/rpms/rang/blob/rawhide/f/0000-rang-fix-tests.patch
--- a/test/CMakeLists.txt
+++ b/test/CMakeLists.txt
@@ -8,7 +8,6 @@ set(CMAKE_CXX_EXTENSIONS        OFF)
 
 function(rang_add_test file_name)
     add_executable("${file_name}" "${file_name}.cpp")
-    target_link_libraries("${file_name}" rang)
 endfunction()
 
 # simple tests #################################################################
@@ -23,7 +22,7 @@ find_package(doctest)
 
 if (${doctest_FOUND} EQUAL 1)
     add_executable(all_rang_tests "test.cpp")
-    target_link_libraries(all_rang_tests rang doctest::doctest)
+    target_link_libraries(all_rang_tests doctest::doctest)
 
     enable_testing()
 
--- a/test/colorTest.cpp
+++ b/test/colorTest.cpp
@@ -1,4 +1,4 @@
-#include "rang.hpp"
+#include "../include/rang.hpp"
 #include <string>
 
 using namespace std;
--- a/test/envTermMissing.cpp
+++ b/test/envTermMissing.cpp
@@ -1,4 +1,4 @@
-#include "rang.hpp"
+#include "../include/rang.hpp"
 #include <cstdlib>
 
 using std::cout;
--- a/test/test.cpp
+++ b/test/test.cpp
@@ -1,7 +1,7 @@
 #define DOCTEST_CONFIG_IMPLEMENT_WITH_MAIN
-#include "doctest.h"
+#include "doctest/doctest.h"
 
-#include "rang.hpp"
+#include "../include/rang.hpp"
 #include <fstream>
 #include <string>