diff --git a/setup.py b/setup.py
index 594901e..cf7a654 100644
--- a/setup.py
+++ b/setup.py
@@ -216,6 +216,13 @@ class IgraphCCoreCMakeBuilder:
     def _compile_in(
         self, source_folder: Path, build_folder: Path, install_folder: Path
     ) -> Union[bool, List[str]]:
+        emcmake = which("emcmake")
+        if not emcmake:
+            print(
+                "emcmake missing"
+            )
+            return False
+
         cmake = which("cmake")
         if not cmake:
             print(
@@ -227,7 +234,9 @@ class IgraphCCoreCMakeBuilder:
         build_to_source_folder = os.path.relpath(source_folder, build_folder)
 
         print("Configuring build...")
-        args = [cmake]
+        args = [emcmake, cmake]
+
+        args.append("-DIGRAPH_WARNINGS_AS_ERRORS:BOOL=OFF")
 
         # Build the Python interface with vendored libraries
         for deps in "ARPACK BLAS CXSPARSE GLPK GMP LAPACK".split():