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108 lines
5.1 KiB
Plaintext
108 lines
5.1 KiB
Plaintext
Building with Visual C++, prerequisites
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=======================================
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This document describes how to compile, build and install curl and libcurl
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from sources using the Visual C++ build tool. To build with VC++, you will
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of course have to first install VC++. The minimum required version of
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VC is 6 (part of Visual Studio 6). However using a more recent version is
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strongly recommended.
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VC++ is also part of the Windows Platform SDK. You do not have to install
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the full Visual Studio or Visual C++ if all you want is to build curl.
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The latest Platform SDK can be downloaded freely from:
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https://msdn.microsoft.com/en-us/windows/bb980924
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If you are building with VC6 then you will also need the February 2003
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Edition of the Platform SDK which can be downloaded from:
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https://www.microsoft.com/en-us/download/details.aspx?id=12261
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If you wish to support zlib, openssl, c-ares, ssh2, you will have to download
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them separately and copy them to the deps directory as shown below:
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somedirectory\
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|_curl-src
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| |_winbuild
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|_deps
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|_ lib
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|_ include
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|_ bin
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It is also possible to create the deps directory in some other random
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places and tell the Makefile its location using the WITH_DEVEL option.
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Building straight from git
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==========================
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When you check out code git and build it, as opposed from a released source
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code archive, you need to first run the "buildconf.bat" batch file (present
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in the source code root directory) to set things up.
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Building with Visual C++
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========================
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Open a Visual Studio Command prompt or the SDK CMD shell.
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Using the CMD Shell:
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choose the right environment via the setenv command (see setenv /?)
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for the full list of options. setenv /xp /x86 /release for example.
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Using the Visual Studio command prompt Shell:
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Everything is already pre-configured by calling one of the command
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prompt.
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Once you are in the console, go to the winbuild directory in the Curl
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sources:
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cd curl-src\winbuild
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Then you can call nmake /f Makefile.vc with the desired options (see below).
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The builds will be in the top src directory, builds\ directory, in
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a directory named using the options given to the nmake call.
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nmake /f Makefile.vc mode=<static or dll> <options>
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where <options> is one or many of:
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VC=<6,7,8,9,10,11,12,14,15> - VC versions
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WITH_DEVEL=<path> - Paths for the development files (SSL, zlib, etc.)
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Defaults to sibbling directory deps: ../deps
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Libraries can be fetched at http://windows.php.net/downloads/php-sdk/deps/
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Uncompress them into the deps folder.
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WITH_SSL=<dll or static> - Enable OpenSSL support, DLL or static
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WITH_NGHTTP2=<dll or static> - Enable HTTP/2 support, DLL or static
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WITH_MBEDTLS=<dll or static> - Enable mbedTLS support, DLL or static
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WITH_CARES=<dll or static> - Enable c-ares support, DLL or static
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WITH_ZLIB=<dll or static> - Enable zlib support, DLL or static
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WITH_SSH2=<dll or static> - Enable libSSH2 support, DLL or static
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ENABLE_SSPI=<yes or no> - Enable SSPI support, defaults to yes
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ENABLE_IPV6=<yes or no> - Enable IPv6, defaults to yes
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ENABLE_IDN=<yes or no> - Enable use of Windows IDN APIs, defaults to yes
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Requires Windows Vista or later, or installation from:
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https://www.microsoft.com/downloads/details.aspx?FamilyID=AD6158D7-DDBA-416A-9109-07607425A815
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ENABLE_WINSSL=<yes or no> - Enable native Windows SSL support, defaults to yes
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GEN_PDB=<yes or no> - Generate Program Database (debug symbols for release build)
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DEBUG=<yes or no> - Debug builds
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MACHINE=<x86 or x64> - Target architecture (default is x86)
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Static linking of Microsoft's C RunTime (CRT):
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==============================================
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If you are using mode=static nmake will create and link to the static build of
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libcurl but *not* the static CRT. If you must you can force nmake to link in
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the static CRT by passing RTLIBCFG=static. Typically you shouldn't use that
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option, and nmake will default to the DLL CRT. RTLIBCFG is rarely used and
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therefore rarely tested. When passing RTLIBCFG for a configuration that was
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already built but not with that option, or if the option was specified
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differently, you must destroy the build directory containing the configuration
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so that nmake can build it from scratch.
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Legacy Windows and SSL
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======================
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When you build curl using the build files in this directory the default SSL
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backend will be WinSSL (Windows SSPI, more specifically Schannel), the native
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SSL library that comes with the Windows OS. WinSSL in Windows <= XP is not able
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to connect to servers that no longer support the legacy handshakes and
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algorithms used by those versions. If you will be using curl in one of those
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earlier versions of Windows you should choose another SSL backend like OpenSSL.
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