makefile: Added support for VC11

Makefile.dist

@@ -322,6 +322,17 @@ src/Makefile.vc10: src/Makefile.vc6
 	@echo "generate $@"
 	@sed -e "s#/GX /DWIN32 /YX#/EHsc /DWIN32#" -e "s#/GZ#/RTC1#" -e "s/ws2_32.lib/ws2_32.lib/g" -e "s/vc6/vc10/g" -e "s/VC6/VC10/g" src/Makefile.vc6 > src/Makefile.vc10
 
+# VC11 makefiles are for use with VS2012
+vc11: lib/Makefile.vc11 src/Makefile.vc11
+
+lib/Makefile.vc11: lib/Makefile.vc6
+	@echo "generate $@"
+	@sed -e "s#/GX /DWIN32 /YX#/EHsc /DWIN32#" -e "s#/GZ#/RTC1#" -e "s/ws2_32.lib/ws2_32.lib/g" -e "s/vc6/vc11/g" -e "s/VC6/VC11/g" lib/Makefile.vc6 > lib/Makefile.vc11
+
+src/Makefile.vc11: src/Makefile.vc6
+	@echo "generate $@"
+	@sed -e "s#/GX /DWIN32 /YX#/EHsc /DWIN32#" -e "s#/GZ#/RTC1#" -e "s/ws2_32.lib/ws2_32.lib/g" -e "s/vc6/vc11/g" -e "s/VC6/VC11/g" src/Makefile.vc6 > src/Makefile.vc11
+
 ca-bundle: lib/mk-ca-bundle.pl
 	@echo "generate a fresh ca-bundle.crt"
 	@perl $< -b -l -u lib/ca-bundle.crt

winbuild/BUILD.WINDOWS.txt

@@ -52,7 +52,7 @@ a directory named using the options given to the nmake call.
 nmake /f Makefile.vc mode=<static or dll> <options>
 
 where <options> is one or many of:
-  VC=<6,7,8,9,10>              - VC versions
+  VC=<6,7,8,9,10,11>           - VC versions
   WITH_DEVEL=<path>            - Paths for the development files (SSL, zlib, etc.)
                                  Defaults to sibbling directory deps: ../deps
                                  Libraries can be fetched at http://pecl2.php.net/downloads/php-windows-builds/

winbuild/Makefile.vc

@@ -15,7 +15,7 @@ CFGSET=true
 
 !MESSAGE Usage: nmake /f Makefile.vc mode=<static or dll> <options>
 !MESSAGE where <options> is one or many of:
-!MESSAGE   VC=<6,7,8,9,10>              - VC versions
+!MESSAGE   VC=<6,7,8,9,10,11>           - VC versions
 !MESSAGE   WITH_DEVEL=<path>            - Paths for the development files (SSL, zlib, etc.)
 !MESSAGE                                  Defaults to sibbling directory deps: ../deps
 !MESSAGE                                  Libraries can be fetched at http://pecl2.php.net/downloads/php-windows-builds/

winbuild/MakefileBuild.vc

@@ -22,7 +22,7 @@
 
 ###########################################################################
 #
-# Makefile for building libcurl with MSVC 6, 7, 8, 9 and 10
+# Makefile for building libcurl with MSVC 6, 7, 8, 9, 10 and 11
 #
 # Usage: see usage message below
 #        Should be invoked from winbuild directory