--- openssl-1.1.1/Configurations/unix-Makefile.tmpl~	2018-09-13 13:08:19.000000000 +0200
+++ openssl-1.1.1/Configurations/unix-Makefile.tmpl	2018-09-13 13:15:24.200834530 +0200
@@ -205,7 +205,7 @@ CPPFLAGS={- our $cppflags1 = join(" ",
                                   (map { "-D".$_} @{$config{CPPDEFINES}}),
                                   (map { "-I".$_} @{$config{CPPINCLUDES}}),
                                   @{$config{CPPFLAGS}}) -}
-CFLAGS={- join(' ', @{$config{CFLAGS}}) -}
+CFLAGS={- join(' ', @{$config{CFLAGS}}) -} $(OPTFLAGS)
 CXXFLAGS={- join(' ', @{$config{CXXFLAGS}}) -}
 LDFLAGS= {- join(' ', @{$config{LDFLAGS}}) -}
 EX_LIBS= {- join(' ', @{$config{LDLIBS}}) -}