build system: turn off x bits on .so files for uspace rt comps

Not sure why gcc sets the execute bits on .so output files, but this
sledge hammer fixes the problem.

Author: SebKuzminsky

src/Makefile

@@ -1063,6 +1063,7 @@ modules: $(patsubst %.o,../rtlib/%.so,$(obj-m))
 	$(Q)objcopy -j .rtapi_export -O binary objects/$*.tmp objects/$*.sym
 	$(Q)(echo '{ global : '; tr -s '\0' < objects/$*.sym | xargs -r0 printf '%s;\n' | grep .; echo 'local : * ; };') > objects/$*.ver
 	$(Q)$(CC) -shared -Bsymbolic $(LDFLAGS) -Wl,--version-script,objects/$*.ver -o $@ $^ -lm
+	$(Q)chmod -x $@
 
 RTFLAGS += -fno-strict-aliasing -fwrapv
 

src/Makefile.modinc.in

@@ -121,6 +121,7 @@ $(foreach mod,$(patsubst %.o,%,$(obj-m)),\
 	$(Q)objcopy -j .rtapi_export -O binary $*.tmp $*.sym
 	$(Q)(echo '{ global : '; tr -s '\0' < $*.sym | xargs -r0 printf '%s;\n' | grep .; echo 'local : * ; };') > $*.ver
 	$(Q)$(CC) -shared -Bsymbolic $(LDFLAGS) -Wl,--version-script,$*.ver -o $@ $^ -lm
+	$(Q)chmod -x $@
 endif
 
 ifeq ($(BUILDSYS),normal)