environment: get environment variables for both host and build machines

Fixes #8605

1 files changed, 15 insertions, 8 deletions

diff --git a/mesonbuild/compilers/compilers.py b/mesonbuild/compilers/compilers.py
index b06f6a5..9b4418b 100644
--- a/mesonbuild/compilers/compilers.py
+++ b/mesonbuild/compilers/compilers.py
@@ -1236,19 +1236,26 @@ def get_global_options(lang: str,
     largkey = argkey.evolve('link_args')
     envkey = argkey.evolve('env_args')
 
+    comp_key = argkey if argkey in env.options else envkey
+
+    comp_options = env.options.get(comp_key, [])
+    link_options = env.options.get(largkey, [])
+
     cargs = coredata.UserArrayOption(
         description + ' compiler',
-        env.options.get(argkey, []), split_args=True, user_input=True, allow_dups=True)
-    # the compiler args always gets the environemtn variable arguments
-    cargs.extend_value(env.options.get(envkey, []))
+        comp_options, split_args=True, user_input=True, allow_dups=True)
 
     largs = coredata.UserArrayOption(
         description + ' linker',
-        env.options.get(largkey, []), split_args=True, user_input=True, allow_dups=True)
-    # The linker gets the compiler environment variable only if the comiler
-    # acts as the linker
-    if comp.INVOKES_LINKER:
-        largs.extend_value(env.options.get(envkey, []))
+        link_options, split_args=True, user_input=True, allow_dups=True)
+
+    if comp.INVOKES_LINKER and comp_key == envkey:
+        # If the compiler acts as a linker driver, and we're using the
+        # environment variable flags for both the compiler and linker
+        # arguments, then put the compiler flags in the linker flags as well.
+        # This is how autotools works, and the env vars freature is for
+        # autotools compatibility.
+        largs.extend_value(comp_options)
 
     opts: 'KeyedOptionDictType' = {argkey: cargs, largkey: largs}