Have BSD 'make -s' do the right thing, thanks to Daniel Shahaf

Makefile.pre.in

@@ -478,11 +478,12 @@ pybuilddir.txt: $(BUILDPYTHON)
 	$(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)' \

Misc/ACKS

@@ -1075,6 +1075,7 @@ Jerry Seutter
 Pete Sevander
 Denis Severson
 Ian Seyer
+Daniel Shahaf
 Ha Shao
 Mark Shannon
 Richard Shapiro

Misc/NEWS

@@ -408,6 +408,8 @@ Tests
 Build
 -----
 
+- Issue #16593: Have BSD 'make -s' do the right thing, thanks to Daniel Shahaf
+
 - Issue #16262: fix out-of-src-tree builds, if mercurial is not installed.
 
 - Issue #15298: ensure _sysconfigdata is generated in build directory, not