patch-CMakeLists.txt

--- CMakeLists.txt.orig	2015-02-19 16:13:47 UTC
+++ CMakeLists.txt
@@ -978,9 +978,8 @@ set (with_mail no)
 # find the compilation flags
 enable_if_not_defined (enable-mail)
 if (enable-mail)
-	find_program (LIBETPAN_CONFIG_EXECUTABLE libetpan-config)
 	execute_process(
-		COMMAND ${LIBETPAN_CONFIG_EXECUTABLE} --cflags
+		COMMAND pkg-config libetpan --cflags
 		OUTPUT_VARIABLE MAIL_PACKAGE_CFLAGS)
 	if (NOT "${MAIL_PACKAGE_CFLAGS}" STREQUAL "" AND NOT "${MAIL_PACKAGE_CFLAGS}" STREQUAL "\n") # if there is a problem with the previous, we don't want to have a lot of errors
 		STRING (REGEX REPLACE "\n" "" TMP_VARIABLE "${MAIL_PACKAGE_CFLAGS}") # to not skip the last option
@@ -993,7 +992,7 @@ if (enable-mail)
 	endif()
 	# find the link flags
 	execute_process(
-		COMMAND ${LIBETPAN_CONFIG_EXECUTABLE} --libs
+		COMMAND pkg-config libetpan --libs
 		OUTPUT_VARIABLE MAIL_PACKAGE_LIBS)
 	if (NOT "${MAIL_PACKAGE_LIBS}" STREQUAL "")
 		STRING (REGEX REPLACE "\n" "" MAIL_PACKAGE_LIBS "${MAIL_PACKAGE_LIBS}")