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closes bpo-39575: Change -lgcov to --coverage. (GH-18382) 

This allows clang to get rid of the dependency on libgcov.
When linking, GCC passes -lgcov while clang passes the path to libclang_rt.profile-$arch.a
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Fangrui Song 2020-02-07 15:46:29 -08:00 committed by GitHub
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Makefile.pre.in
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@ -513,7 +513,7 @@ profile-opt: profile-run-stamp
coverage:
@echo "Building with support for coverage checking:"
$(MAKE) clean
$(MAKE) @DEF_MAKE_RULE@ CFLAGS="$(CFLAGS) -O0 -pg -fprofile-arcs -ftest-coverage" LIBS="$(LIBS) -lgcov"
$(MAKE) @DEF_MAKE_RULE@ CFLAGS="$(CFLAGS) -O0 -pg --coverage" LIBS="$(LIBS) --coverage"
coverage-lcov:
@echo "Creating Coverage HTML report with LCOV:"