CHANGES: document COQFLAGS change

1 files changed, 2 insertions, 0 deletions

diff --git a/CHANGES b/CHANGES
index 06a9bba7d..40e8547ae 100644
--- a/CHANGES
+++ b/CHANGES
@@ -5,6 +5,8 @@ Tools
 
 - Coq_makefile lets one override or extend the following variables from
   the command line: COQFLAGS, COQCHKFLAGS, COQDOCFLAGS.
+  COQFLAGS is now entirely separate from COQLIBS, so in custom Makefiles
+  $(COQFLAGS) should be replaced by $(COQFLAGS) $(COQLIBS).
 
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