Well, as the messages say, you specified /WX - "treat any warning as a fatal error." You got a warning -- /G5 is deprecated - and, just as you asked, VC treated it as a fatal error.
Charles From: owner-openssl-us...@openssl.org [mailto:owner-openssl-us...@openssl.org] On Behalf Of Ahmad Sent: Wednesday, September 26, 2012 2:46 AM To: openssl-users@openssl.org Subject: facing problem in installation of openssl-0.9.7d I am having some error when i try to install openssl-0.9.7d. from the VC++ environment at a prompt when i run this command > nmake -f ms\ntdll.mak I get following errors 1 file(s) copied. cl /Fotmp32dll\cryptlib.obj -Iinc32 -Itmp32dll /MD /W3 /WX /G5 /Ox /O2 /Ob2 /Gs0 /GF /Gy /nologo -DOPENSSL_SYSNAME_WIN32 -DWIN32_LEAN_AND_MEAN -DL_ENDI AN -DDSO_WIN32 -DBN_ASM -DMD5_ASM -DSHA1_ASM -DRMD160_ASM /Fdout32dll -DOPENSSL_ NO_KRB5 -D_WINDLL -DOPENSSL_BUILD_SHLIBCRYPTO -c .\crypto\cryptlib.c cl : Command line warning D9002 : ignoring unknown option '/G5' cryptlib.c C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\errno.h(92) : error C22 20: warning treated as error - no 'object' file generated C:\Program Files\Microsoft Visual Studio 10.0\VC\INCLUDE\errno.h(92) : warning C 4005: 'EADDRINUSE' : macro redefinition tmp32dll\e_os.h(156) : see previous definition of 'EADDRINUSE' NMAKE : fatal error U1077: '"C:\Program Files\Microsoft Visual Studio 10.0\VC\BI N\cl.EXE"' : return code '0x2' Stop. How can these errors be solved ? Please help in this issue. Regards, -- Ahmad