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** [bugs:#1488] Building libcurl 7.41.0 with OpenSSL on Windows using VC makefile fails (+ solution)**
**Status:** open
**Created:** Thu Mar 05, 2015 08:47 AM UTC by Oliver Kuckertz
**Last Updated:** Thu Mar 05, 2015 08:47 AM UTC
**Owner:** nobody
Hello,
I am building libcurl 7.41.0 using VC 12 on Windows 8.1 64-bit with the following command:
nmake /f Makefile.vc MODE=static WITH_SSL=static WITH_CARES=static WITH_ZLIB=static GEN_PDF=no DEBUG=false VC=12 RTLIBCFG=static
The compiler output contains various errors describing that structures such as OCSP_BASICRESP (access on line lib/vtls/openssl.c:1337) are undefined.
Related thread on mailing list (I did not post there, but it turned up on Google and did not contain a solution) containing compiler output:
http://curl.haxx.se/mail/lib-2015-02/0197.html
The cause for this issue apparently is a recently introduced check for USE_OPENSSL on line 58 of openssl.c. When not defined, some OpenSSL headers (such as ocsp.h) are not included.
The solution is to define USE_OPENSSL in MakefileBuild.vc. Specifically, change line 58 to:
SSL_CFLAGS   = /DUSE_SSLEAY /DUSE_OPENSSL /I"$(DEVEL_INCLUDE)/openssl"
Oliver
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