- fixed compilation with GCC and Clang

libraries/wildmidi/file_io.cpp:68:40: error: use of undeclared identifier 'malloc'
libraries/wildmidi/wildmidi_lib.cpp:672:10: error: use of undeclared identifier 'stricmp'; did you mean 'strcmp'?
libraries/wildmidi/wildmidi_lib.cpp:1011:11: error: use of undeclared identifier 'strnicmp'; did you mean 'strncmp'?

libraries/wildmidi/CMakeLists.txt

@@ -9,6 +9,18 @@ endif()
 
 set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${ZD_FASTMATH_FLAG}")
 
+include( CheckFunctionExists )
+
+CHECK_FUNCTION_EXISTS( stricmp STRICMP_EXISTS )
+if( NOT STRICMP_EXISTS )
+	add_definitions( -Dstricmp=strcasecmp )
+endif()
+
+CHECK_FUNCTION_EXISTS( strnicmp STRNICMP_EXISTS )
+if( NOT STRNICMP_EXISTS )
+	add_definitions( -Dstrnicmp=strncasecmp )
+endif()
+
 include_directories( wildmidi )
 
 file( GLOB HEADER_FILES

libraries/wildmidi/file_io.cpp

@@ -35,6 +35,7 @@
 
 #include <errno.h>
 #include <memory>
+#include <stdlib.h>
 
 #include "wm_error.h"
 #include "file_io.h"