NOSTATICFN/NONOSTATICFN typos and logic fixes

include/config.h

@@ -273,7 +273,9 @@
 # endif
 # ifdef __linux__
 #  define PANICTRACE
-#  define NOSTATICFN
+#  ifndef NOSTATICFN	   // may be defined on command line
+#   define NOSTATICFN
+#  endif
 # endif
 // This test isn't quite right: CNG is only available from Windows 2000 on.
 // But we'll check that at runtime.

sys/unix/hints/linux.370

@@ -360,10 +360,10 @@ POSTINSTALL+= sed -i -e 's;^GDBPATH=/usr/bin/gdb;\#GDBPATH=/usr/bin/gdb;' \
 		-e 's;PANICTRACE_GDB=1;PANICTRACE_GDB=0;' $(INSTDIR)/sysconf;
 endif
 
-ifeq 'USENONOSTATICFN' '1'
+ifeq '$(USE_NONOSTATICFN)' '1'
 CFLAGS += -DNONOSTATICFN
 else
-ifeq 'USE_NOSTATICFN' '1'
+ifeq '$(USE_NOSTATICFN)' '1'
 CFLAGS += -DNOSTATICFN
 endif
 endif