Imported Upstream version 7.44.0

[platform/upstream/curl.git] / winbuild / BUILD.WINDOWS.txt

diff --git a/winbuild/BUILD.WINDOWS.txt b/winbuild/BUILD.WINDOWS.txt
index 757c41f..1556fe6 100644 (file)
--- a/winbuild/BUILD.WINDOWS.txt
+++ b/winbuild/BUILD.WINDOWS.txt
@@ -1,5 +1,5 @@
-Building with Visual C++, prerequises\r
-=====================================\r
+Building with Visual C++, prerequisites\r
+=======================================\r
 \r
    This document describes how to compile, build and install curl and libcurl\r
    from sources using the Visual C++ build tool. To build with VC++, you will\r
@@ -19,7 +19,7 @@ Building with Visual C++, prerequises
 \r
     http://www.microsoft.com/en-us/download/details.aspx?id=12261\r
 \r
-   If you wish to support zlib, openssl, ssh2, you will have to download\r
+   If you wish to support zlib, openssl, c-ares, ssh2, you will have to download\r
    them separately and copy them to the deps directory as shown below:\r
    \r
    somedirectory\\r
@@ -58,12 +58,13 @@ a directory named using the options given to the nmake call.
 nmake /f Makefile.vc mode=<static or dll> <options>\r
 \r
 where <options> is one or many of:\r
-  VC=<6,7,8,9,10,11,12>        - VC versions\r
+  VC=<6,7,8,9,10,11,12,14>     - VC versions\r
   WITH_DEVEL=<path>            - Paths for the development files (SSL, zlib, etc.)\r
                                  Defaults to sibbling directory deps: ../deps\r
                                  Libraries can be fetched at http://windows.php.net/downloads/php-sdk/deps/\r
                                  Uncompress them into the deps folder.\r
   WITH_SSL=<dll or static>     - Enable OpenSSL support, DLL or static\r
+  WITH_CARES=<dll or static>   - Enable c-ares support, DLL or static\r
   WITH_ZLIB=<dll or static>    - Enable zlib support, DLL or static\r
   WITH_SSH2=<dll or static>    - Enable libSSH2 support, DLL or static\r
   ENABLE_SSPI=<yes or no>      - Enable SSPI support, defaults to yes\r
@@ -75,3 +76,23 @@ where <options> is one or many of:
   GEN_PDB=<yes or no>          - Generate Program Database (debug symbols for release build)\r
   DEBUG=<yes or no>            - Debug builds\r
   MACHINE=<x86 or x64>         - Target architecture (default is x86)\r
+\r
+Static linking of Microsoft's C RunTime (CRT):\r
+==============================================\r
+If you are using mode=static nmake will create and link to the static build of\r
+libcurl but *not* the static CRT. If you must you can force nmake to link in\r
+the static CRT by passing RTLIBCFG=static. Typically you shouldn't use that\r
+option, and nmake will default to the DLL CRT. RTLIBCFG is rarely used and\r
+therefore rarely tested. When passing RTLIBCFG for a configuration that was\r
+already built but not with that option, or if the option was specified\r
+differently, you must destroy the build directory containing the configuration\r
+so that nmake can build it from scratch.\r
+\r
+Legacy Windows and SSL\r
+======================\r
+When you build curl using the build files in this directory the default SSL\r
+backend will be WinSSL (Windows SSPI, more specifically Schannel), the native\r
+SSL library that comes with the Windows OS. WinSSL in Windows <= XP is not able\r
+to connect to servers that no longer support the legacy handshakes and\r
+algorithms used by those versions. If you will be using curl in one of those\r
+earlier versions of Windows you should choose another SSL backend like OpenSSL.\r