Have BSD 'make -s' do the right thing, thanks to Daniel Shahaf
diff --git a/Makefile.pre.in b/Makefile.pre.in
index ece1f34..54755b9 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -478,11 +478,12 @@
$(RUNSHARED) $(PYTHON_FOR_BUILD) -S -m sysconfig --generate-posix-vars
# Build the shared modules
-# MAKEFLAGS are sorted and normalized. Under GNU make the 's' for
+# Under GNU make, MAKEFLAGS are sorted and normalized; the 's' for
# -s, --silent or --quiet is always the first char.
+# Under BSD make, MAKEFLAGS might be " -s -v x=y".
sharedmods: $(BUILDPYTHON) pybuilddir.txt
@case "$$MAKEFLAGS" in \
- s*) quiet="-q";; \
+ *\ -s*|s*) quiet="-q";; \
*) quiet="";; \
esac; \
$(RUNSHARED) CC='$(CC)' LDSHARED='$(BLDSHARED)' OPT='$(OPT)' \