Initial CMake support

.gitignore

@@ -50,3 +50,6 @@ aptdec
 
 # VSCode
 .vscode
+
+# CMake
+build

CMakeLists.txt

@@ -0,0 +1,21 @@
+cmake_minimum_required (VERSION 3.0.0)
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/cmake")
+
+project (aptdec)
+
+add_executable(aptdec main.c color.c dsp.c filter.c image.c median.c pngio.c reg.c)
+
+# Math
+target_link_libraries(aptdec PRIVATE m)
+
+# PNG
+if(WIN32 AND NOT MINGW)
+    find_package(PNG CONFIG REQUIRED)
+else()
+    find_package(PNG REQUIRED)
+endif()
+target_link_libraries(aptdec PRIVATE PNG::PNG)
+
+# SndFile
+find_package(LibSndFile REQUIRED)
+target_link_libraries(aptdec PRIVATE ${LIBSNDFILE_LIBRARY})

cmake/FindLibSndFile.cmake

@@ -0,0 +1,20 @@
+# Find libsndfile
+
+FIND_PATH(LIBSNDFILE_INCLUDE_DIR sndfile.h)
+
+SET(LIBSNDFILE_NAMES ${LIBSNDFILE_NAMES} sndfile libsndfile)
+FIND_LIBRARY(LIBSNDFILE_LIBRARY NAMES ${LIBSNDFILE_NAMES} PATH)
+
+IF (LIBSNDFILE_INCLUDE_DIR AND LIBSNDFILE_LIBRARY)
+    SET(LIBSNDFILE_FOUND TRUE)
+ENDIF (LIBSNDFILE_INCLUDE_DIR AND LIBSNDFILE_LIBRARY)
+
+IF (LIBSNDFILE_FOUND)
+    IF (NOT LibSndFile_FIND_QUIETLY)
+        MESSAGE (STATUS "Found LibSndFile: ${LIBSNDFILE_LIBRARY}")
+    ENDIF (NOT LibSndFile_FIND_QUIETLY)
+ELSE (LIBSNDFILE_FOUND)
+    IF (LibSndFile_FIND_REQUIRED)
+        MESSAGE (FATAL_ERROR "Could not find sndfile")
+    ENDIF (LibSndFile_FIND_REQUIRED)
+ENDIF (LIBSNDFILE_FOUND)