Add some corrections based on code review
-Add the DHM_ALT in an alphabetical order
-Close correctly the 'extern "C" { ...'
diff --git a/include/mbedtls/dhm.h b/include/mbedtls/dhm.h
index 40916c6..f9725ab 100644
--- a/include/mbedtls/dhm.h
+++ b/include/mbedtls/dhm.h
@@ -296,10 +296,19 @@
int mbedtls_dhm_parse_dhmfile( mbedtls_dhm_context *dhm, const char *path );
#endif /* MBEDTLS_FS_IO */
#endif /* MBEDTLS_ASN1_PARSE_C */
-#else
+
+#ifdef __cplusplus
+}
+#endif
+
+#else /* MBEDTLS_DHM_ALT */
#include "dhm_alt.h"
#endif /* MBEDTLS_DHM_ALT */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
/**
* \brief Checkup routine
*