windows - "CPU you selected does not support x86-64 instruction set" error on Cygwin-x64

Question

I'm trying to install openssl in cygwin by following these instructions: I dowloaded the latest tarball from this site http://www.openssl.org/source/, and put it in C:cygwin64home, then I run these commands from cygwin

1. tar zxvf openssl-1.0.1e.tar.gz
2. cd openssl-1.0.1e
3. ./config
4. make
5. make test

6. make install

   (Instructions from here :http://www.slideshare.net/ganaaturuu/cygwinandopen-sslinstallguide)

Up to the 3rd step ./config it works fine I believe, at least there are no errors reported, and it gives the message "Configured for Cygwin." in the end. When I run make though it gives me this output:

making all in crypto...
make[1]: Entering directory '/home/openssl-1.0.1e/crypto'
( echo "#ifndef MK1MF_BUILD"; 
echo '  /* auto-generated by crypto/Makefile for crypto/cversion.c */'; 
echo '  #define CFLAGS "gcc -DOPENSSL_THREADS  -DDSO_DLFCN -DHAVE_DLFCN_H -DTERM                                                                                                                IOS -DL_ENDIAN -fomit-frame-pointer -O3 -march=i486 -Wall -DOPENSSL_BN_ASM_PART_                                                                                                                WORDS -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM                                                                                                                 -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DRMD160_ASM -DAES_ASM -DVPAES_ASM -DWHIRLP                                                                                                                OOL_ASM -DGHASH_ASM"'; 
echo '  #define PLATFORM "Cygwin"'; 
echo "  #define DATE "`LC_ALL=C LC_TIME=C date`""; 
echo '#endif' ) >buildinf.h
gcc -I. -I.. -I../include  -DOPENSSL_THREADS  -DDSO_DLFCN -DHAVE_DLFCN_H -DTERMI                                                                                                                OS -DL_ENDIAN -fomit-frame-pointer -O3 -march=i486 -Wall -DOPENSSL_BN_ASM_PART_W                                                                                                                ORDS -DOPENSSL_IA32_SSE2 -DOPENSSL_BN_ASM_MONT -DOPENSSL_BN_ASM_GF2m -DSHA1_ASM                                                                                                                 -DSHA256_ASM -DSHA512_ASM -DMD5_ASM -DRMD160_ASM -DAES_ASM -DVPAES_ASM -DWHIRLPO                                                                                                                OL_ASM -DGHASH_ASM   -c -o cryptlib.o cryptlib.c
cryptlib.c:1:0: error: CPU you selected does not support x86-64 instruction set
 /* crypto/cryptlib.c */
 ^
cryptlib.c:1:0: error: CPU you selected does not support x86-64 instruction set
<builtin>: recipe for target 'cryptlib.o' failed
make[1]: *** [cryptlib.o] Error 1
make[1]: Leaving directory '/home/openssl-1.0.1e/crypto'
Makefile:278: recipe for target 'build_crypto' failed
make: *** [build_crypto] Error 1

I searched about the "CPU you selected does not support x86-64 instruction set" and I think it has to do with CFLAGS and -march=i486 option, but I'm not at all sure as into what it should be changed.

In this How to compile a C++ program as 64-bit on 64-bit machine? question there are some solutions suggested, but in my case there are nowhere in the makefile options like -m32 and -march=i686 to remove.

If you could please show me the right direction to search this, if not the solution, I would be grateful.

I'm working on Windows 7 64-bit, with cygwin and gcc version 4.8.2.

Answer 1

Here's a "mee too" answer because things have changed a bit. Cygwin-x64 support was cut-in in May 2015 under Issue 3110: Adding support for x86_64 Cygwin.

However, config still selects the i686 version of the library to build. Also see Issue #4326: Failed to configure for Cygwin-x64 in the OpenSSL bug tracker.

To build OpenSSL 1.0.2 on Cygwin-x64, you have to use Configure and select the triplet. Below is the soup-to-nuts recipe.

$ curl https://www.openssl.org/source/openssl-1.0.2f.tar.gz -o openssl-1.0.2f.tar.gz
...
$ tar -xzf openssl-1.0.2f.tar.gz
...
$ cd openssl-1.0.2f

Then:

$ ./Configure Cygwin-x86_64 shared no-ssl2 no-ssl3 --openssldir="$HOME/ssl"
...
$ make depend
...
$ make
...
$ make install_sw

install_sw installs the headers in $OPENSSLDIR/include, and the libraries in $OPENSSLDIR/lib. It does not install the man pages.

You then compile and link with:

$ gcc -I "$HOME/ssl/include" test.c -o test.exe "$HOME/ssl/lib/libcrypto.a" "$HOME/ssl/lib/libssl.a"

Linking against libcrypto.a and libssl.a means you avoid library path problems. Things will "just work" for you.

---

Also, if you need this for OpenSSL 1.0.1, then you can copy/paste the triplet's settings from 1.0.2's Configure (from line 613):

$ grep "Cygwin-x86_64" Configure
"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",

If you want config to "just work" for 1.0.1, then add the following. Be sure the line for Cygwin-x86_64 was added to Configure.

x86_64-*-cygwin) OUT="Cygwin-x86_64" ;;     <== Add this in front of the ones below
*-*-cygwin_pre1.3) OUT="Cygwin-pre1.3" ;;
*-*-cygwin) OUT="Cygwin" ;;