fix sfml cmake version parser and ffmpeg test

CMakeLists.txt

@@ -99,7 +99,7 @@ endif()
 # FFmpeg
 if(NOT NO_MOVIE)
     find_package(FFmpeg COMPONENTS avformat avcodec avutil swscale swresample)
-    if(NOT FFMPEG_FOUND)
+    if(NOT FFMPEG_SWRESAMPLE_FOUND)
         find_package(FFmpeg COMPONENTS avformat avcodec avutil swscale avresample REQUIRED)
     endif()
 endif()

cmake/modules/FindSFML.cmake

@@ -89,11 +89,19 @@ if(SFML_FIND_VERSION AND SFML_INCLUDE_DIR)
         set(SFML_CONFIG_HPP_INPUT "${SFML_INCLUDE_DIR}/SFML/Config.hpp")
     endif()
     FILE(READ "${SFML_CONFIG_HPP_INPUT}" SFML_CONFIG_HPP_CONTENTS)
-    STRING(REGEX MATCH ".*#define SFML_VERSION_MAJOR ([0-9]+).*#define SFML_VERSION_MINOR ([0-9]+).*#define SFML_VERSION_PATCH ([0-9]+).*" SFML_CONFIG_HPP_CONTENTS "${SFML_CONFIG_HPP_CONTENTS}")
-    STRING(REGEX REPLACE ".*#define SFML_VERSION_MAJOR ([0-9]+).*" "\\1" SFML_VERSION_MAJOR "${SFML_CONFIG_HPP_CONTENTS}")
-    STRING(REGEX REPLACE ".*#define SFML_VERSION_MINOR ([0-9]+).*" "\\1" SFML_VERSION_MINOR "${SFML_CONFIG_HPP_CONTENTS}")
-    STRING(REGEX REPLACE ".*#define SFML_VERSION_PATCH ([0-9]+).*" "\\1" SFML_VERSION_PATCH "${SFML_CONFIG_HPP_CONTENTS}")
-    math(EXPR SFML_REQUESTED_VERSION "${SFML_FIND_VERSION_MAJOR} * 10000 + ${SFML_FIND_VERSION_MINOR} * 100 + ${SFML_FIND_VERSION_PATCH}")
+    STRING(REGEX MATCHALL "#define SFML_VERSION_(MAJOR|MINOR|PATCH) ([0-9]+)" matches "${SFML_CONFIG_HPP_CONTENTS}")
+    STRING(REGEX REPLACE ".*#define SFML_VERSION_MAJOR ([0-9]+).*" "\\1" SFML_VERSION_MAJOR "${matches}")
+    if(NOT SFML_VERSION_MAJOR MATCHES "^[0-9]+$")
+        unset(SFML_VERSION_MAJOR)
+    endif()
+    STRING(REGEX REPLACE ".*#define SFML_VERSION_MINOR ([0-9]+).*" "\\1" SFML_VERSION_MINOR "${matches}")
+    if(NOT SFML_VERSION_MINOR MATCHES "^[0-9]+$")
+        set(SFML_VERSION_MINOR 0)
+    endif()
+    STRING(REGEX REPLACE ".*#define SFML_VERSION_PATCH ([0-9]+).*" "\\1" SFML_VERSION_PATCH "${matches}")
+    if(NOT SFML_VERSION_PATCH MATCHES "^[0-9]+$")
+        set(SFML_VERSION_PATCH 0)
+    endif()
 
     # if we could extract them, compare with the requested version number
     if (SFML_VERSION_MAJOR)