Makefile: help target pointers for multiple source files.

Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/Makefile b/Makefile
index 97d65bb..d958a53 100644
--- a/Makefile
+++ b/Makefile
@@ -133,6 +133,9 @@ help:
 	@echo "    $$ make BOARD=your_board"
 	@echo "    $$ make BOARD=your_board install"
 	@echo ""
+	@echo "(Multiple source files? Link with libmaple.a (\`$$ make library')"
+	@echo "or hack build-targets.mk appropriately.)"
+	@echo ""
 	@echo "Important targets:"
 	@echo "    sketch:   Compile for BOARD to MEMORY_TARGET (default)."
 	@echo "    install:  Compile and upload over USB using Maple bootloader"