Add another missing file

Author: JukkaL

mypyc/build.py

@@ -82,6 +82,7 @@ class ModDesc(NamedTuple):
             "base64/arch/ssse3/enc_loop_asm.c",
             "base64/arch/ssse3/enc_translate.c",
             "base64/arch/ssse3/enc_reshuffle.c",
+            "base64/arch/ssse3/enc_loop.c",
             "base64/arch/neon64/dec_loop.c",
             "base64/arch/neon64/enc_loop_asm.c",
             "base64/codecs.h",