add ios build workaround, detailed in

https://karp.id.au/a/2015/09/15/xcode-7s-new-linker-rules/ and
https://forums.developer.apple.com/thread/18316

CMakeLists.txt

@@ -6,12 +6,16 @@ if (DEBUG)
 else()
 	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -O2")
 endif()	
+if (IOS)
+	# workaround for problem detailed in https://karp.id.au/a/2015/09/15/xcode-7s-new-linker-rules/
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -miphoneos-version-min=7.0")
+endif()
 file(GLOB_RECURSE src "./src/*.cpp")
 if (OSXBUNDLE)
 	set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -bundle")
 	add_executable(shutup MACOSX_BUNDLE ${src}) 
 elseif(BUILD_ANDROID)
 	add_library(shutup SHARED ${src})
 else()
-	add_library(shutup ${src})
+	add_library(shutup STATIC ${src})
 endif()

toolchain/ios.cmake

@@ -209,3 +209,5 @@ macro (find_host_package)
 	set (CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
 endmacro (find_host_package)
 
+# work around for https://forums.developer.apple.com/thread/18316
+set (CMAKE_CXX_ARCHIVE_CREATE "<CMAKE_AR> crs <TARGET> <LINK_FLAGS> <OBJECTS>")