Refactor getting the host system of a cross compiler

Use mesonlib.for_windows or mesonlib.for_cygwin instead of
reimplementing them.

Add CrossBuildInfo.get_host_system to shorten the repeated the code in
the mesonlib.for_<platform> methods.

1 files changed, 6 insertions, 18 deletions

diff --git a/mesonbuild/mesonlib.py b/mesonbuild/mesonlib.py
index af21a9c..87f50d7 100644
--- a/mesonbuild/mesonlib.py
+++ b/mesonbuild/mesonlib.py
@@ -299,9 +299,7 @@ def for_windows(is_cross, env):
     """
     if not is_cross:
         return is_windows()
-    elif env.cross_info.has_host():
-        return env.cross_info.config['host_machine']['system'] == 'windows'
-    return False
+    return env.cross_info.get_host_system() == 'windows'
 
 def for_cygwin(is_cross, env):
     """
@@ -311,9 +309,7 @@ def for_cygwin(is_cross, env):
     """
     if not is_cross:
         return is_cygwin()
-    elif env.cross_info.has_host():
-        return env.cross_info.config['host_machine']['system'] == 'cygwin'
-    return False
+    return env.cross_info.get_host_system() == 'cygwin'
 
 def for_linux(is_cross, env):
     """
@@ -323,9 +319,7 @@ def for_linux(is_cross, env):
     """
     if not is_cross:
         return is_linux()
-    elif env.cross_info.has_host():
-        return env.cross_info.config['host_machine']['system'] == 'linux'
-    return False
+    return env.cross_info.get_host_system() == 'linux'
 
 def for_darwin(is_cross, env):
     """
@@ -335,9 +329,7 @@ def for_darwin(is_cross, env):
     """
     if not is_cross:
         return is_osx()
-    elif env.cross_info.has_host():
-        return env.cross_info.config['host_machine']['system'] in ('darwin', 'ios')
-    return False
+    return env.cross_info.get_host_system() in ('darwin', 'ios')
 
 def for_android(is_cross, env):
     """
@@ -347,9 +339,7 @@ def for_android(is_cross, env):
     """
     if not is_cross:
         return is_android()
-    elif env.cross_info.has_host():
-        return env.cross_info.config['host_machine']['system'] == 'android'
-    return False
+    return env.cross_info.get_host_system() == 'android'
 
 def for_haiku(is_cross, env):
     """
@@ -359,9 +349,7 @@ def for_haiku(is_cross, env):
     """
     if not is_cross:
         return is_haiku()
-    elif env.cross_info.has_host():
-        return env.cross_info.config['host_machine']['system'] == 'haiku'
-    return False
+    return env.cross_info.get_host_system() == 'haiku'
 
 def for_openbsd(is_cross, env):
     """