Could not find SDL-image-1.2.12 extension library file

While trying to add the sdl image-1.2.12 extension to sdl in code block i
cannnot find any library file
i went to the directory E:\SDL_image-1.2.12\lib\x86,i could only find
libjpeg.dll file not any .a file or is the .dll file necessary library
file. Iam confused because in SDL-1.2.15 the library file is usually .a or
.al file .I downloded the sdl-image extension from

Iam working under windows 8