diff --git a/config.h.in b/config.h.in
index 9cf951c5..cc221245 100644
--- a/config.h.in
+++ b/config.h.in
@@ -3,6 +3,8 @@
 /* Define to 1 if you don't have `vprintf' but do have `_doprnt.' */
 #undef HAVE_DOPRNT
 
+#undef HAVE_CFMAKERAW
+
 /* Define to 1 if you have the `endpwent' function. */
 #undef HAVE_ENDPWENT
 
diff --git a/configure b/configure
index dcc53c11..2281be3e 100755
--- a/configure
+++ b/configure
@@ -5086,7 +5086,8 @@ done
 
 
 
-for ac_func in endpwent gethostbyaddr gethostbyname getpass memmove memset \
+
+for ac_func in endpwent gethostbyaddr gethostbyname getpass memmove memset cfmakeraw\
  select socket strchr strdup strerror strstr poll
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
diff --git a/configure.in b/configure.in
index 7d1a72ea..7f829915 100644
--- a/configure.in
+++ b/configure.in
@@ -60,7 +60,7 @@ AC_FUNC_REALLOC
 AC_FUNC_SELECT_ARGTYPES
 AC_TYPE_SIGNAL
 AC_FUNC_VPRINTF
-AC_CHECK_FUNCS([endpwent gethostbyaddr gethostbyname getpass memmove memset \
+AC_CHECK_FUNCS([endpwent gethostbyaddr gethostbyname getpass memmove memset cfmakeraw\
  select socket strchr strdup strerror strstr poll])
 
 AC_CONFIG_FILES([Makefile
diff --git a/sample.c b/sample.c
index d1c0fb47..60125d60 100644
--- a/sample.c
+++ b/sample.c
@@ -80,7 +80,7 @@ int opts(int argc, char **argv){
     return 0;
 }
 
-#ifndef HAVE_PTY_H
+#ifndef HAVE_CFMAKERAW
 static void cfmakeraw(struct termios *termios_p){
     termios_p->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
     termios_p->c_oflag &= ~OPOST;