diff --git a/CMakeLists.txt b/CMakeLists.txt
index 308b3d9f..8467925e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,4 +1,4 @@
-cmake_minimum_required (VERSION 3.8)
+cmake_minimum_required (VERSION 3.8)
 
 project ("cpymo")
 
@@ -12,8 +12,12 @@ add_definitions (-DENABLE_TEXT_EXTRACT_COPY_TO_CLIPBOARD)
 add_definitions (-DENABLE_EXIT_CONFIRM)
 add_definitions (-DLEAKCHECK)
 add_definitions (-DLIMIT_WINDOW_SIZE_TO_SCREEN)
-
-find_package (FFMPEG REQUIRED)
+if(MSVC OR WIN32)
+    find_package(FFMPEG REQUIRED)
+else()
+find_package(PkgConfig REQUIRED)
+pkg_check_modules(FFMPEG REQUIRED libavformat libavcodec libavutil libswscale libswresample)
+endif()
 
 if (FFMPEG_FOUND)
 else ()
diff --git a/cpymo-backends/sdl2/CMakeLists.txt b/cpymo-backends/sdl2/CMakeLists.txt
index c747cdb7..af11bda3 100644
--- a/cpymo-backends/sdl2/CMakeLists.txt
+++ b/cpymo-backends/sdl2/CMakeLists.txt
@@ -3,27 +3,39 @@ cmake_minimum_required (VERSION 3.8)
 include_directories("../../cpymo")
 
 find_package (SDL2 CONFIG REQUIRED)
-find_package (FFMPEG REQUIRED)
+
+if (MSVC OR WIN32)
+    find_package (FFMPEG REQUIRED)
+endif()
+
+include_directories(${FFMPEG_INCLUDE_DIRS})
 
 file (GLOB CPYMO_BACKEND_SRC "*.h" "*.c")
 
 add_executable (cpymo ${CPYMO_BACKEND_SRC})
 
-target_link_libraries(cpymo PRIVATE 
-	SDL2::SDL2 
-	SDL2::SDL2main 
-	cpymolib
-	${FFMPEG_LIBRARIES})
-
+target_link_libraries(cpymo PRIVATE
+    SDL2::SDL2
+    SDL2::SDL2main
+    cpymolib
+    ${FFMPEG_LIBRARIES}
+)
 
-if (VCPKG_LIBRARY_LINKAGE EQUAL "static")
-	target_link_libraries(cpymo PRIVATE SDL2::SDL2-static)
+if (VCPKG_LIBRARY_LINKAGE STREQUAL "static")
+    target_link_libraries(cpymo PRIVATE SDL2::SDL2-static)
 endif ()
 
 if (CMAKE_SYSTEM_NAME MATCHES "Windows")
-	target_sources (cpymo PRIVATE "pymo-icon-windows.rc")
+    target_sources (cpymo PRIVATE "pymo-icon-windows.rc")
 elseif (CMAKE_SYSTEM_NAME MATCHES "Linux")
-	set(CMAKE_C_FLAGS "-D__LINUX__")
-    target_link_libraries(cpymo PRIVATE X11)
-endif ()
+    target_compile_definitions(cpymo PRIVATE __LINUX__)
+
+    execute_process(
+        COMMAND pkg-config --libs --static libavformat libavcodec libavutil libswscale libswresample
+        OUTPUT_VARIABLE FFMPEG_STATIC_LIBS_STR
+        OUTPUT_STRIP_TRAILING_WHITESPACE
+    )
+    separate_arguments(FFMPEG_FULL_LIBS_LIST UNIX_COMMAND "${FFMPEG_STATIC_LIBS_STR}")
 
+    target_link_libraries(cpymo PRIVATE X11 ${FFMPEG_FULL_LIBS_LIST})
+endif ()
diff --git a/cpymo-tool/cpymo_tool_convert.c b/cpymo-tool/cpymo_tool_convert.c
index 164e0a42..81b315c3 100644
--- a/cpymo-tool/cpymo_tool_convert.c
+++ b/cpymo-tool/cpymo_tool_convert.c
@@ -7,7 +7,7 @@
 #include <io.h>
 #elif defined __APPLE__
 #include <sys/uio.h>
-#else
+#elif defined(__linux__) && (defined(__x86_64__) || defined(__i386__))
 #include <sys/io.h>
 #endif
 #include <string.h>