INSTALL: Explain how to use CPPFLAGS and LDFLAGS.

diff --git a/INSTALL b/INSTALL
index 113ed14cfeffcd3e47650486891e72be91edea38..8c70c34a20e57cb6e87ab47e97391ff297ed1609 100644 (file)
--- a/INSTALL
+++ b/INSTALL
@@ -8,8 +8,13 @@ Type
 
                make
 
-in the dss source directory to build the dss executable and the
-man page. Then type
+in the dss source directory to build the dss executable and the man
+page. If lopsub is installed in a non-standard path, you may need to
+run `make` as follows:
+
+               make CPPFLAGS=-I$HOME/lopsub/include LDFLAGS=-L$HOME/lopsub/lib
+
+Then type
 
                sudo make install