rebase

mozilla-central/patches/9999999-with-vs2019.patch

@@ -7,7 +7,7 @@ Bug 9999999 - permit --with-visual-studio-version=2019.
 diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolchain.configure
 --- a/build/moz.configure/toolchain.configure
 +++ b/build/moz.configure/toolchain.configure
-@@ -523,27 +523,26 @@ def get_vc_paths(topsrcdir):
+@@ -527,26 +527,26 @@ def get_vc_paths(topsrcdir):
          )
          tools_path = os.path.join(path, r"VC\Tools\MSVC", tools_version)
          yield (Version(install["installationVersion"]), tools_path)
@@ -23,17 +23,17 @@ diff --git a/build/moz.configure/toolchain.configure b/build/moz.configure/toolc
  )
  
  
- @depends("--with-visual-studio-version", when=host_is_windows)
- def vs_major_version(value):
-     if value:
--        return {"2017": 15}[value[0]]
+ @depends_if("--with-visual-studio-version", when=host_is_windows)
+ def vs_version(value):
+-    return value[0]
 -
++    if value:
 +        return {"2017": 15, "2019": 16}[value[0]]
  
- option(
-     env="VC_PATH",
-     nargs=1,
-     when=host_is_windows,
-     help="Path to the Microsoft Visual C/C++ compiler",
- )
+ @depends(target, host)
+ def is_windows(target, host):
+     return host.kernel == "WINNT" or target.kernel == "WINNT"
+ 
  
+ # Calling this a sysroot is a little weird, but it's the terminology clang went
+ # with with its -winsysroot flag.