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Date: Sat, 30 Jul 2011 22:12:45 -0400
From: "Robert Harris" <>
To: <>
Subject: RE: Compiling john 1.7.8 jumbo under Windows XP+cygwin


I also think that something is wrong with your version of cygwin.

I would advise deleting your whole cygwin directory and install a brand new

I used "make clean win32-cygwin-x86-sse2" all the time to build John.

-Robert B. Harris from VA

-----Original Message-----
From: madfran [] 
Sent: Saturday, July 30, 2011 2:04 PM
Subject: Re: [john-users] Compiling john 1.7.8 jumbo under Windows XP+cygwin

> >> I am trying to compile the jumbo release of john 1.7.8 under XP (with 
> >> patch
> >
> > It looks like your libssl is linked with libz, so you need to add -lz to
> > LDFLAGS.  Does this help?
> >

I have exactly the same message.

....sha1-mmx.o md5-mmx.o -s -L/usr/local/lib -L/usr/local/ssl/lib -lcrypto -
lssl -lm -lz  -lkernel32 -o ../run/john.exe
/usr/local/ssl/lib/libssl.a(ssl_err2.o):ssl_err2.c:(.text+0x4): undefined 
reference to `_ERR_load_crypto_strings'

> madfran, are you using the win32-cygwin-x86-sse2 and not the 
> win32-mingw-x86-sse2 build rules?  They both are likely to succeed 
> on a cygwin installation, but the 2nd is less likely to be as robust 
> and up to date.

I use "make win32-cygwin-x86-sse2"


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