thodg/libgit2

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 7bcd51f..2deed5f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -285,7 +285,12 @@ ELSEIF (SHA1_BACKEND STREQUAL "mbedTLS")
 	ADD_FEATURE_INFO(SHA ON "using mbedTLS")
 	SET(GIT_SHA1_MBEDTLS 1)
 	FILE(GLOB SRC_SHA1 hash/hash_mbedtls.c)
-	LIST(APPEND LIBGIT2_PC_REQUIRES "mbedtls")
+	LIST(APPEND LIBGIT2_INCLUDES ${MBEDTLS_INCLUDE_DIR})
+	LIST(APPEND LIBGIT2_LIBS ${MBEDTLS_LIBRARIES})
+	# mbedTLS has no pkgconfig file, hence we can't require it
+	# https://github.com/ARMmbed/mbedtls/issues/228
+	# For now, pass its link flags as our own
+	LIST(APPEND LIBGIT2_PC_LIBS ${MBEDTLS_LIBRARIES})
 ELSE()
 	MESSAGE(FATAL_ERROR "Asked for unknown SHA1 backend ${SHA1_BACKEND}")
 ENDIF()