cmake: Add libcurl support

cmake/Modules/FindLibcurl.cmake

@@ -0,0 +1,58 @@
+# Once done these will be defined:
+#
+#  LIBCURL_FOUND
+#  LIBCURL_INCLUDE_DIRS
+#  LIBCURL_LIBRARIES
+#
+# For use in OBS:
+#
+#  CURL_INCLUDE_DIR
+
+find_package(PkgConfig QUIET)
+if (PKG_CONFIG_FOUND)
+	pkg_check_modules(_CURL QUIET curl)
+endif()
+
+if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+	set(_lib_suffix 64)
+else()
+	set(_lib_suffix 32)
+endif()
+
+find_path(CURL_INCLUDE_DIR
+	NAMES curl/curl.h
+	HINTS
+		ENV curlPath${_lib_suffix}
+		ENV curlPath
+		${_CURL_INCLUDE_DIRS}
+	PATHS
+		/usr/include /usr/local/include /opt/local/include /sw/include
+	PATH_SUFFIXES
+		include)
+
+find_library(CURL_LIB
+	NAMES ${_CURL_LIBRARIES} curl libcurl
+	HINTS
+		ENV curlPath${_lib_suffix}
+		ENV curlPath
+		${_CURL_LIBRARY_DIRS}
+	PATHS
+		/usr/lib /usr/local/lib /opt/local/lib /sw/lib
+	PATH_SUFFIXES
+		lib${_lib_suffix} lib
+		libs${_lib_suffix} libs
+		bin${_lib_suffix} bin
+		../lib${_lib_suffix} ../lib
+		../libs${_lib_suffix} ../libs
+		../bin${_lib_suffix} ../bin
+		"build/Win${_lib_suffix}/VC12/DLL Release - DLL Windows SSPI"
+		"../build/Win${_lib_suffix}/VC12/DLL Release - DLL Windows SSPI")
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(Libcurl DEFAULT_MSG CURL_LIB CURL_INCLUDE_DIR)
+mark_as_advanced(CURL_INCLUDE_DIR CURL_LIB)
+
+if(LIBCURL_FOUND)
+	set(LIBCURL_INCLUDE_DIRS ${CURL_INCLUDE_DIR})
+	set(LIBCURL_LIBRARIES ${CURL_LIB})
+endif()