--- openssl-fips-2.0.16/Configure.orig	2017-04-24 21:42:04.000000000 +0300
+++ openssl-fips-2.0.16/Configure	2017-07-20 21:48:34.314108700 +0300
@@ -557,6 +557,7 @@
 # Cygwin
 "Cygwin-pre1.3", "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall::(unknown):CYGWIN32::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${no_asm}:win32",
 "Cygwin", "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -march=i486 -Wall:::CYGWIN32::BN_LLONG ${x86_gcc_des} ${x86_gcc_opts}:${x86_asm}:coff:dlfcn:cygwin-shared:-D_WINDLL:-shared:.dll.a",
+"Cygwin-x86_64", "gcc:-DTERMIOS -DL_ENDIAN -O3 -Wall:::CYGWIN::SIXTY_FOUR_BIT_LONG RC4_CHUNK DES_INT DES_UNROLL:${x86_64_asm}:mingw64:dlfcn:cygwin-shared:-D_WINDLL:-shared:.dll.a",
 "debug-Cygwin", "gcc:-DTERMIOS -DL_ENDIAN -march=i486 -Wall -DBN_DEBUG -DREF_CHECK -DCONF_DEBUG -DBN_CTX_DEBUG -DCRYPTO_MDEBUG -DOPENSSL_NO_ASM -g -Wformat -Wshadow -Wmissing-prototypes -Wmissing-declarations -Werror:::CYGWIN32:::${no_asm}:dlfcn:cygwin-shared:-D_WINDLL:-shared:.dll.a",
 
 # NetWare from David Ward (dsward@novell.com)
--- openssl-fips-2.0.16/config.orig	2017-04-24 15:58:27.000000000 +0300
+++ openssl-fips-2.0.16/config	2017-07-20 21:39:54.580109500 +0300
@@ -871,7 +871,8 @@
   # *-dgux) OUT="dgux" ;;
   mips-sony-newsos4) OUT="newsos4-gcc" ;;
   *-*-cygwin_pre1.3) OUT="Cygwin-pre1.3" ;;
-  *-*-cygwin) OUT="Cygwin" ;;
+  i[3456]86-*-cygwin) OUT="Cygwin" ;;
+  *-*-cygwin) OUT="Cygwin-${MACHINE}" ;;
   t3e-cray-unicosmk) OUT="cray-t3e" ;;
   j90-cray-unicos) OUT="cray-j90" ;;
   nsr-tandem-nsk) OUT="tandem-c89" ;;