Fix DLL building

CMakeLists.txt

@@ -7,10 +7,12 @@ set(CMAKE_CXX_STANDARD_REQUIRED true)
 
 option(CTRFF_DESKTOP OFF "Buid for Desktop Platform")
 option(CTRFF_3DS OFF "Build lib for 3ds")
+option(CTRFF_SHARED OFF)
 
 if(${CTRFF_3DS})
     set(CTRFF_DESKTOP OFF CACHE BOOL)
     set(CTRFF_BUILD_GUI OFF CACHE BOOL)
+    set(CTRFF_SHARED OFF CACHE BOOL)
     if(NOT DEFINED CMAKE_TOOLCHAIN_FILE)
         if(DEFINED ENV{DEVKITPRO})
             set(CMAKE_TOOLCHAIN_FILE "$ENV{DEVKITPRO}/cmake/3DS.cmake" CACHE PATH "toolchain file")
@@ -21,7 +23,7 @@ if(${CTRFF_3DS})
     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wno-psabi -O3")
 endif()
 
-add_library(ctrff STATIC
+set(CTRFF_SOURCE
     source/3dsx.cpp
     source/bclim.cpp
     source/bcstm.cpp
@@ -32,6 +34,14 @@ add_library(ctrff STATIC
     source/pica.cpp
     source/smdh.cpp
 )
+
+if(${CTRFF_SHARED})
+add_library(ctrff SHARED ${CTRFF_SOURCE})
+target_compile_definitions(ctrff PUBLIC CTRFF_SHARED)
+target_compile_definitions(ctrff PRIVATE CTRFF_BUILD_SHARED)
+else()
+add_library(ctrff STATIC ${CTRFF_SOURCE})
+endif()
 target_include_directories(ctrff PUBLIC include)
 
 if(${CTRFF_DESKTOP})