t/README: Add a note about the dangers of coverage chasing

diff --git a/Makefile b/Makefile
index 0de4c6ed5e114e4b891254c3e78ce2898fb92178..c83fc29993f4cd9ea7b846449148266e65110333 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -2299,6 +2299,7 @@ coverage-clean:
        $(RM) $(addsuffix *.gcno,$(object_dirs))
        $(RM) coverage-untested-functions
        $(RM) -r cover_db/
+       $(RM) -r cover_db_html/
 
 COVERAGE_CFLAGS = $(CFLAGS) -O0 -ftest-coverage -fprofile-arcs
 COVERAGE_LDFLAGS = $(CFLAGS)  -O0 -lgcov
@@ -2321,3 +2322,6 @@ coverage-untested-functions: coverage-report
 
 cover_db: coverage-report
        gcov2perl -db cover_db *.gcov
+
+cover_db_html: cover_db
+       cover -report html -outputdir cover_db_html cover_db