Dependency tracking works with MSVC.

backends.py

@@ -190,6 +190,7 @@ class Backend():
 
     def generate_basic_compiler_flags(self, target, compiler):
         commands = []
+        commands += compiler.get_always_flags()
         commands += self.build.get_global_flags(compiler)
         commands += target.get_extra_args(compiler.get_language())
         if self.environment.coredata.buildtype != 'plain':
@@ -540,10 +541,13 @@ class NinjaBackend(Backend):
              ' '.join(compiler.get_output_flags('$out')),\
              ' '.join(compiler.get_compile_only_flags()))
         description = ' description = Compiling %s object $out\n' % langname
-        dep = ' depfile = $DEPFILE\n'
+        if compiler.get_id() == 'msvc':
+            deps = ' deps = msvc\n'
+        else:
+            deps = ' depfile = $DEPFILE\n'
         outfile.write(rule)
         outfile.write(command)
-        outfile.write(dep)
+        outfile.write(deps)
         outfile.write(description)
         outfile.write('\n')
 
@@ -559,11 +563,14 @@ class NinjaBackend(Backend):
              ' '.join([qstr % d for d in depflags]),\
              output,\
              ' '.join(compiler.get_compile_only_flags()))
-        description = ' description = Precompilling header %s\n' % '$in'
-        dep = ' depfile = $DEPFILE\n'
+        description = ' description = Precompiling header %s\n' % '$in'
+        if compiler.get_id() == 'msvc':
+            deps = ' deps = msvc\n'
+        else:
+            deps = ' depfile = $DEPFILE\n'
         outfile.write(rule)
         outfile.write(command)
-        outfile.write(dep)
+        outfile.write(deps)
         outfile.write(description)
         outfile.write('\n')
 

environment.py

@@ -36,7 +36,10 @@ class CCompiler():
         self.language = 'c'
         self.default_suffix = 'c'
         self.id = 'unknown'
-    
+
+    def get_always_flags(self):
+        return []
+
     def get_id(self):
         return self.id
 
@@ -244,11 +247,15 @@ class ObjCPPCompiler(CPPCompiler):
 class VisualStudioCCompiler(CCompiler):
     std_warn_flags = ['/W3']
     std_opt_flags= ['/O2']
+    always_flags = ['/nologo', '/showIncludes']
     
     def __init__(self, exelist):
         CCompiler.__init__(self, exelist)
         self.id = 'msvc'
 
+    def get_always_flags(self):
+        return VisualStudioCCompiler.always_flags
+
     def get_std_warn_flags(self):
         return VisualStudioCCompiler.std_warn_flags
 
@@ -447,6 +454,7 @@ class ClangCPPCompiler(CPPCompiler):
         return 'pch'
 
 class VisualStudioLinker():
+    always_flags = ['/NOLOGO']
     def __init__(self, exelist):
         self.exelist = exelist
         
@@ -462,6 +470,9 @@ class VisualStudioLinker():
     def get_coverage_link_flags(self):
         return []
 
+    def get_always_flags(self):
+        return VisualStudioLinker.always_flags
+
 class ArLinker():
     std_flags = ['csr']
 
@@ -480,6 +491,8 @@ class ArLinker():
     def get_coverage_link_flags(self):
         return []
 
+    def get_always_flags(self):
+        return []
 def exe_exists(arglist):
     try:
         p = subprocess.Popen(arglist, stdout=subprocess.PIPE, stderr=subprocess.PIPE)