Makefile.dist: Added support for VC7

Currently VC7 and VC7.1 builds have to be ran with the VC variable set
to vc6 which is not only inconsistent with the nmake winbuild system
but also with newer versions of Visual Studio supported by this file.

Note: This doesn't break the build for anyone still running with the
VC variable set to vc6 or not set (which defaults to vc6).

Makefile.dist

@@ -290,6 +290,18 @@ linux-ssl: ssl
 # We don't need to do anything for vc6.
 vc6:
 
+# VC7 makefiles are for use with VS.NET and VS.NET 2003
+vc7: lib/Makefile.vc7 src/Makefile.vc7
+
+lib/Makefile.vc7: lib/Makefile.vc6
+	@echo "generate $@"
+	@sed -e "s/VC6/VC7/g" lib/Makefile.vc6 > lib/Makefile.vc7
+
+src/Makefile.vc7: src/Makefile.vc6
+	@echo "generate $@"
+	@sed -e "s/VC6/VC7/g" src/Makefile.vc6 > src/Makefile.vc7
+
+# VC8 makefiles are for use with VS2005
 vc8: lib/Makefile.vc8 src/Makefile.vc8
 
 lib/Makefile.vc8: lib/Makefile.vc6

RELEASE-NOTES

@@ -13,7 +13,7 @@ This release includes the following changes:
  o imap/pop3/smtp: Extended the login options to support multiple auth mechanisms
  o TheArtOfHttpScripting: major update, converted layout and more
  o mprintf: Added support for I, I32 and I64 size specifiers
- o makefile: Added support for VC11 and VC12
+ o makefile: Added support for VC7, VC11 and VC12
  o 
 
 This release includes the following bugfixes: