Merge pull request #3261 from libgit2/cmn/link-one-level

pc: Put libcurl and libssh2 in Libs.private

CMakeLists.txt

@@ -201,7 +201,7 @@ IF (WIN32 AND WINHTTP)
 	LINK_LIBRARIES(winhttp rpcrt4 crypt32)
 ELSE ()
 	IF (CURL)
-		FIND_PACKAGE(CURL)
+		PKG_CHECK_MODULES(CURL libcurl)
 	ENDIF ()
 
 	IF (NOT AMIGA AND USE_OPENSSL)
@@ -212,7 +212,7 @@ ELSE ()
 		ADD_DEFINITIONS(-DGIT_CURL)
 		INCLUDE_DIRECTORIES(${CURL_INCLUDE_DIRS})
 		LINK_LIBRARIES(${CURL_LIBRARIES})
-		SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} libcurl")
+		SET(LIBGIT2_PC_LIBS "${LIBGIT2_PC_LIBS} ${CURL_LDFLAGS}")
 	ENDIF()
 
 	FIND_PACKAGE(HTTP_Parser)
@@ -280,7 +280,7 @@ IF (LIBSSH2_FOUND)
 	ADD_DEFINITIONS(-DGIT_SSH)
 	INCLUDE_DIRECTORIES(${LIBSSH2_INCLUDE_DIRS})
 	LINK_DIRECTORIES(${LIBSSH2_LIBRARY_DIRS})
-	SET(LIBGIT2_PC_REQUIRES "${LIBGIT2_PC_REQUIRES} libssh2")
+	SET(LIBGIT2_PC_LIBS "${LIBGIT2_PC_LIBS} ${LIBSSH2_LDFLAGS}")
 	SET(SSH_LIBRARIES ${LIBSSH2_LIBRARIES})
 
 	CHECK_LIBRARY_EXISTS("${LIBSSH2_LIBRARIES}" libssh2_userauth_publickey_frommemory "" HAVE_LIBSSH2_MEMORY_CREDENTIALS)