FindCURL in out cmake folder, required to find debug curl library

cmake/EthDependencies.cmake

@@ -82,7 +82,7 @@ if (GMP_FOUND)
 endif()
 
 # curl is only requried for tests
-# TODO specify min curl version, on windows we are currenly using 7.29
+# TODO specify min curl version, on windows we are currently using 7.29
 find_package (CURL)
 message(" - curl header: ${CURL_INCLUDE_DIRS}")
 message(" - curl lib   : ${CURL_LIBRARIES}")

cmake/FindCURL.cmake

@@ -0,0 +1,49 @@
+# Find CURL
+#
+# Find the curl includes and library
+# 
+# if you nee to add a custom library search path, do it via via CMAKE_PREFIX_PATH 
+# 
+# This module defines
+#  CURL_INCLUDE_DIRS, where to find header, etc.
+#  CURL_LIBRARIES, the libraries needed to use curl.
+#  CURL_FOUND, If false, do not try to use curl.
+
+# only look in default directories
+find_path(
+	CURL_INCLUDE_DIR 
+	NAMES curl/curl.h
+	DOC "curl include dir"
+)
+
+find_library(
+	CURL_LIBRARY
+	# names from cmake's FindCURL
+	NAMES curl curllib libcurl_imp curllib_static libcurl
+	DOC "curl library"
+)
+
+set(CURL_INCLUDE_DIRS ${CURL_INCLUDE_DIR})
+set(CURL_LIBRARIES ${CURL_LIBRARY})
+
+# debug library on windows
+# same naming convention as in qt (appending debug library with d)
+# boost is using the same "hack" as us with "optimized" and "debug"
+if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
+	find_library(
+		CURL_LIBRARY_DEBUG
+		NAMES curld libcurld
+		DOC "curl debug library"
+	)
+	
+	set(CURL_LIBRARIES optimized ${CURL_LIBRARIES} debug ${CURL_LIBRARY_DEBUG})
+
+endif()
+
+# handle the QUIETLY and REQUIRED arguments and set CURL_FOUND to TRUE
+# if all listed variables are TRUE, hide their existence from configuration view
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(CURL DEFAULT_MSG
+	CURL_INCLUDE_DIR CURL_LIBRARY)
+mark_as_advanced (CURL_INCLUDE_DIR CURL_LIBRARY)
+