CMakeLists: fix general code styling, use dynamic linking on macOS

* Making the indentation even across the whole file
* Use dynamic linking on macOS and fix its pkg-config usage in the
process. This should render openFPGALoader agnostic to the
location of Homebrew's prefix, and solve compatibility issues with
MacPorts

CMakeLists.txt

@@ -1,4 +1,3 @@
-
 cmake_minimum_required(VERSION 3.0)
 
 # set the project name
@@ -159,6 +158,11 @@ set(OPENFPGALOADER_HEADERS
 	src/colognechipCfgParser.hpp
 )
 
+link_directories(
+	${LIBUSB_LIBRARY_DIRS}
+	${LIBFTDI_LIBRARY_DIRS}
+)
+
 add_executable(openFPGALoader
 	${OPENFPGALOADER_SOURCE}
 	${OPENFPGALOADER_HEADERS}
@@ -169,16 +173,6 @@ include_directories(
 	${LIBFTDI_INCLUDE_DIRS}
 )
 
-if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
-	find_library(LIBFTDI1STATIC libftdi1.a REQUIRED)
-	find_library(LIBUSB1STATIC libusb-1.0.a REQUIRED)
-	target_link_libraries(openFPGALoader ${LIBFTDI1STATIC} ${LIBUSB1STATIC})
-	set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -framework CoreFoundation -framework IOKit -framework Security")
-	link_directories(/usr/local/lib)
-	target_include_directories(openFPGALoader PRIVATE /usr/local/include)
-	set(CMAKE_FIND_LIBRARY_SUFFIXES ".a")
-	set_target_properties(openFPGALoader PROPERTIES LINK_SEARCH_END_STATIC 1)
-else()
 target_link_libraries(openFPGALoader
 	${LIBUSB_LIBRARIES}
 	${LIBFTDI_LIBRARIES}
@@ -223,7 +217,6 @@ if (ZLIB_FOUND)
 else()
 	message("zlib library not found: can't flash intel/altera devices")
 endif()
-endif()
 
 if (LINK_CMAKE_THREADS)
 	find_package(Threads REQUIRED)