diff '--color=auto' --unified --recursive --text chromaprint-v1.5.0.orig/CMakeLists.txt chromaprint-v1.5.0.new/CMakeLists.txt
--- chromaprint-v1.5.0.orig/CMakeLists.txt	2020-04-15 01:08:10.000000000 -0300
+++ chromaprint-v1.5.0.new/CMakeLists.txt	2020-06-10 01:42:01.000000000 -0300
@@ -1,11 +1,21 @@
-cmake_minimum_required(VERSION 3.3)
+cmake_minimum_required(VERSION 2.8.12)
+
+if(POLICY CMP0042)
+	cmake_policy(SET CMP0042 NEW)
+endif()
+
+if(POLICY CMP0048)
+    cmake_policy(SET CMP0048 OLD)
+endif()
+
+project(chromaprint C CXX)
 
 set(chromaprint_VERSION_MAJOR 1)
 set(chromaprint_VERSION_MINOR 5)
 set(chromaprint_VERSION_PATCH 0)
 set(chromaprint_VERSION "${chromaprint_VERSION_MAJOR}.${chromaprint_VERSION_MINOR}.${chromaprint_VERSION_PATCH}")
 
-project(chromaprint LANGUAGES C CXX VERSION "${chromaprint_VERSION}")
+set(PROJECT_VERSION "${chromaprint_VERSION}")
 
 set(chromaprint_SOVERSION 1)
 
@@ -21,14 +31,14 @@
 
 find_package(Threads)
 
-option(BUILD_SHARED_LIBS "Build shared libraries" ON)
-
-set(CMAKE_CXX_STANDARD 11)
+check_cxx_compiler_flag("-std=c++11" COMPILER_SUPPORTS_CXX11)
+if(COMPILER_SUPPORTS_CXX11)
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
+endif()
 
-if(BUILD_SHARED_LIBS)
-	set(CMAKE_C_VISIBILITY_PRESET hidden)
-	set(CMAKE_CXX_VISIBILITY_PRESET hidden)
-	set(CMAKE_VISIBILITY_INLINES_HIDDEN ON)
+if(CMAKE_COMPILER_IS_GNUCXX AND BUILD_SHARED_LIBS)
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden -fvisibility-inlines-hidden")
+	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden")
 endif()
 
 if(CMAKE_COMPILER_IS_GNUCXX AND CMAKE_BUILD_TYPE STREQUAL "Debug")
@@ -60,6 +70,7 @@
 	set(FRAMEWORK_INSTALL_DIR "/Library/Frameworks" CACHE STRING "Directory to install frameworks to")
 endif()
 
+option(BUILD_SHARED_LIBS "Build shared libraries" ON)
 option(BUILD_TOOLS "Build command line tools" OFF)
 option(BUILD_TESTS "Build test suite" OFF)