C:\openssl\openssl-0.9.8d>nmake -f ms\ntdll.mak

Microsoft (R) Program Maintenance Utility Version 7.10.3077
Copyright (C) Microsoft Corporation.  All rights reserved.

Building OpenSSL
        perl util/copy.pl .\crypto\buildinf.h tmp32dll\buildinf.h
Copying: ./crypto/buildinf.h to tmp32dll/buildinf.h
        cl /Fotmp32dll\cversion.obj  -Iinc32 -Itmp32dll /MD /Ox /O2 /Ob2 /W3 /WX
 /Gs0 /GF /Gy /nologo -DOPENSSL_SYSNAME_WIN32 -DWIN32_LEAN_AND_MEAN -DL_ENDIAN -
DDSO_WIN32 -D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE -DBN_ASM -DMD5
_ASM -DSHA1_ASM -DRMD160_ASM -DOPENSSL_USE_APPLINK -I. /Fdout32dll -DOPENSSL_NO_
CAMELLIA -DOPENSSL_NO_RC5 -DOPENSSL_NO_MDC2 -DOPENSSL_NO_KRB5 -DOPENSSL_NO_DYNAM
IC_ENGINE -D_WINDLL  -DOPENSSL_BUILD_SHLIBCRYPTO -DMK1MF_BUILD -DMK1MF_PLATFORM_
VC_WIN32 -c .\crypto\cversion.c
cversion.c
crypto\cversion.c(105) : error C2220: warning treated as error - no object file
generated
crypto\cversion.c(105) : warning C4129: 'o' : unrecognized character escape sequ
ence
crypto\cversion.c(105) : warning C4129: 'o' : unrecognized character escape sequ
ence
NMAKE : fatal error U1077: 'cl' : return code '0x2'
Stop.

C:\openssl\openssl-0.9.8d>