silly hack for basic mixed-toolchain cross builds on mac

pylib/gyp/generator/ninja.py

Index: pylib/gyp/generator/ninja.py
===================================================================
--- pylib/gyp/generator/ninja.py	(revision 1953)
+++ pylib/gyp/generator/ninja.py	(working copy)
@@ -375,6 +375,10 @@
     self.config_name = config_name
     self.name = spec['target_name']
     self.toolset = spec['toolset']
+
+    if self.toolset == 'target' and generator_supports_multiple_toolsets:
+      self.flavor = 'linux'  # lol
+
     config = spec['configurations'][config_name]
     self.target = Target(spec['type'])
     self.is_standalone_static_library = bool(
@@ -943,6 +947,9 @@
         variables, output, implicit = precompiled_header.GetFlagsModifications(
             input, output, implicit, command, cflags_c, cflags_cc,
             self.ExpandSpecial)
+      # hosting on win will need this too:
+      #if self.toolset == 'host':
+        #command += '_host'
       ninja_file.build(output, command, input,
                        implicit=[gch for _, _, gch in implicit],
                        order_only=predepends, variables=variables)
@@ -1003,6 +1010,11 @@
     }[spec['type']]
     command_suffix = ''
 
+    if self.toolset == 'host':
+      # This is on command_suffix instead of command_suffix so that notoc
+      # versions become solink_notoc_host, not solink_host_notoc.
+      command_suffix += '_host'
+
     implicit_deps = set()
     solibs = set()
 
@@ -1497,7 +1509,8 @@
   global generator_additional_non_configuration_keys
   global generator_additional_path_sections
   flavor = gyp.common.GetFlavor(params)
-  if flavor == 'mac':
+  # Bleh, SHARED_LIB_SUFFIX is per-toolset; gyp doesn't expect that as of yet.
+  if False and flavor == 'mac':
     default_variables.setdefault('OS', 'mac')
     default_variables.setdefault('SHARED_LIB_SUFFIX', '.dylib')
     default_variables.setdefault('SHARED_LIB_DIR',
@@ -1919,7 +1932,7 @@
                '$arch $asm $defines $includes $asmflags /c /Fo $out $in' %
                sys.executable))
 
-  if flavor != 'mac' and flavor != 'win':
+  if True or flavor != 'mac' and flavor != 'win':
     master_ninja.rule(
       'alink',
       description='AR $out',
@@ -1969,7 +1982,8 @@
       command=('$ld $ldflags -o $out '
                '-Wl,--start-group $in -Wl,--end-group $solibs $libs'),
       pool='link_pool')
-  elif flavor == 'win':
+
+  if flavor == 'win':
     master_ninja.rule(
         'alink',
         description='LIB $out',
@@ -1980,7 +1994,7 @@
         rspfile_content='$in_newline $libflags')
     _AddWinLinkRules(master_ninja, embed_manifest=True)
     _AddWinLinkRules(master_ninja, embed_manifest=False)
-  else:
+  elif flavor == 'mac':
     master_ninja.rule(
       'objc',
       description='OBJC $out',
@@ -1996,14 +2010,14 @@
       depfile='$out.d',
       deps=deps)
     master_ninja.rule(
-      'alink',
+      'alink_host',
       description='LIBTOOL-STATIC $out, POSTBUILDS',
       command='rm -f $out && '
               './gyp-mac-tool filter-libtool libtool $libtool_flags '
               '-static -o $out $in'
               '$postbuilds')
     master_ninja.rule(
-      'lipo',
+      'lipo_host',
       description='LIPO $out, POSTBUILDS',
       command='rm -f $out && lipo -create $in -output $out$postbuilds')
 
@@ -2031,7 +2045,7 @@
 
     solink_suffix = '@$link_file_list$postbuilds'
     master_ninja.rule(
-      'solink',
+      'solink_host',
       description='SOLINK $lib, POSTBUILDS',
       restat=True,
       command=mtime_preserving_solink_base % {'suffix': solink_suffix,
@@ -2040,7 +2054,7 @@
       rspfile_content='$in $solibs $libs',
       pool='link_pool')
     master_ninja.rule(
-      'solink_notoc',
+      'solink_notoc_host',
       description='SOLINK $lib, POSTBUILDS',
       restat=True,
       command=solink_base % {'suffix':solink_suffix, 'type': '-shared'},
@@ -2049,7 +2063,7 @@
       pool='link_pool')
 
     master_ninja.rule(
-      'solink_module',
+      'solink_module_host',
       description='SOLINK(module) $lib, POSTBUILDS',
       restat=True,
       command=mtime_preserving_solink_base % {'suffix': solink_suffix,
@@ -2058,7 +2072,7 @@
       rspfile_content='$in $solibs $libs',
       pool='link_pool')
     master_ninja.rule(
-      'solink_module_notoc',
+      'solink_module_notoc_host',
       description='SOLINK(module) $lib, POSTBUILDS',
       restat=True,
       command=solink_base % {'suffix': solink_suffix, 'type': '-bundle'},
@@ -2067,11 +2081,12 @@
       pool='link_pool')
 
     master_ninja.rule(
-      'link',
+      'link_host',
       description='LINK $out, POSTBUILDS',
       command=('$ld $ldflags -o $out '
                '$in $solibs $libs$postbuilds'),
       pool='link_pool')
+
     master_ninja.rule(
       'preprocess_infoplist',
       description='PREPROCESS INFOPLIST $out',