Add missing CFLAGS in Setup.stdlib.in

Author: msprotz

Modules/Setup.stdlib.in

@@ -77,8 +77,8 @@
 @MODULE_READLINE_TRUE@readline readline.c
 
 # hashing builtins, can be disabled with --without-builtin-hashlib-hashes
-@MODULE__MD5_TRUE@_md5 md5module.c -I$(srcdir)/Modules/_hacl/include _hacl/Hacl_Hash_MD5.c
-@MODULE__SHA1_TRUE@_sha1 sha1module.c -I$(srcdir)/Modules/_hacl/include _hacl/Hacl_Hash_SHA1.c
+@MODULE__MD5_TRUE@_md5 md5module.c -I$(srcdir)/Modules/_hacl/include _hacl/Hacl_Hash_MD5.c -D_BSD_SOURCE -D_DEFAULT_SOURCE
+@MODULE__SHA1_TRUE@_sha1 sha1module.c -I$(srcdir)/Modules/_hacl/include _hacl/Hacl_Hash_SHA1.c -D_BSD_SOURCE -D_DEFAULT_SOURCE
 @MODULE__SHA2_TRUE@_sha2 sha2module.c -I$(srcdir)/Modules/_hacl/include Modules/_hacl/libHacl_Streaming_SHA2.a
 @MODULE__SHA3_TRUE@_sha3 _sha3/sha3module.c
 @MODULE__BLAKE2_TRUE@_blake2 _blake2/blake2module.c _blake2/blake2b_impl.c _blake2/blake2s_impl.c