🔨 More specific preprocess exception (#28256)

Co-authored-by: Scott Lahteine <thinkyhead@users.noreply.github.com>
2026-01-08 17:20:53 +13:00
parent e61469f8c1
commit 65b62a900f
1 changed files with 10 additions and 5 deletions
@@ -37,15 +37,20 @@ def run_preprocessor(env, fn=None):
        else:
            cmd += ['-D' + s]

-    cmd += ['-D__MARLIN_DEPS__ -w -dM -E -x c++']
-    depcmd = cmd + [ filename ]
-    cmd = ' '.join(depcmd)
+    cmd += ['-D__MARLIN_DEPS__ -w -dM -E -x c++', filename]
+
+    cmd = ' '.join(cmd)
    blab(cmd)
+
    try:
-        define_list = subprocess.check_output(cmd, shell=True).splitlines()
+        define_list_text = subprocess.check_output(cmd, shell=True)
    except:
-        define_list = {}
+        raise RuntimeError(f"Command `{cmd}` failed during build pre-processing.")
+
+    define_list = define_list_text.splitlines() if define_list_text else []
+
    preprocessor_cache[filename] = define_list
+
    return define_list