winbuild: Removed WITH_SSL=schannel and tie schannel to SSPI

Removed specific WITH_SSL=schannel paramter that did not fit the general
schema and complicated the parameters. For now Schannel will be enabled
if SSPI is enabled and OpenSSL is disabled.
diff --git a/winbuild/Makefile.vc b/winbuild/Makefile.vc
index a35e9be..a45e4ee 100644
--- a/winbuild/Makefile.vc
+++ b/winbuild/Makefile.vc
@@ -73,10 +73,6 @@
 !ELSEIF "$(WITH_SSL)"=="static"

 USE_SSL = true

 SSL     = static

-!ELSEIF "$(WITH_SSL)"=="schannel"

-USE_SSL      = true

-USE_SSPI     = true

-SSL          = schannel

 !ENDIF

 

 !IF "$(WITH_ZLIB)"=="dll"

diff --git a/winbuild/MakefileBuild.vc b/winbuild/MakefileBuild.vc
index 92b4bbb..7063906 100644
--- a/winbuild/MakefileBuild.vc
+++ b/winbuild/MakefileBuild.vc
@@ -97,19 +97,16 @@
 
 !IF "$(WITH_SSL)"=="dll"
 SSL_LIBS     = libeay32.lib ssleay32.lib
-SSL_CFLAGS   = /DUSE_SSLEAY /I"$(DEVEL_INCLUDE)/openssl"
 USE_SSL      = true
 SSL          = dll
 !ELSEIF "$(WITH_SSL)"=="static"
 SSL_LIBS     = libeay32.lib ssleay32.lib gdi32.lib user32.lib advapi32.lib
-SSL_CFLAGS   = /DUSE_SSLEAY /I"$(DEVEL_INCLUDE)/openssl"
 USE_SSL      = true
 SSL          = static
-!ELSEIF "$(WITH_SSL)"=="schannel"
-USE_SSL      = true
-USE_SSPI     = yes
-SSL_CFLAGS   = /DUSE_SSL /DUSE_SCHANNEL
-SSL          = schannel
+!ENDIF
+
+!IFDEF USE_SSL
+SSL_CFLAGS   = /DUSE_SSLEAY /I"$(DEVEL_INCLUDE)/openssl"
 !ENDIF
 
 
@@ -154,6 +151,9 @@
 CFLAGS_SSPI = /DUSE_WINDOWS_SSPI
 LFLAGS_SSPI = version.lib
 USE_SSPI    = true
+!IFNDEF USE_SSL
+CFLAGS_SSPI = $(CFLAGS_SSPI) /DUSE_SCHANNEL
+!ENDIF
 !ENDIF