Check for -Wno-int-conversion option.

Author: nascheme

Tools/configure/conf_compiler.py

@@ -361,6 +361,11 @@ def setup_gcc_warnings(v):
     ):
         v.CFLAGS_NODIST += " -Wno-unused-parameter"
 
+    # config.site for WASI sets ac_cv_disable_int_conversion=yes to suppress
+    # -Wint-conversion errors (WASI clock types are pointers, not integers).
+    if v.ac_cv_disable_int_conversion:
+        v.CFLAGS_NODIST += " -Wno-int-conversion"
+
     if pyconf.check_compile_flag(
         "-Wno-missing-field-initializers", extra_flags=["-Werror"]
     ):

configure-new

@@ -2896,6 +2896,9 @@ function u_setup_gcc_warnings(    cc_ver, cc_with_fna, cc_with_fsa, fna_supporte
 	if (pyconf_check_compile_flag("-Wno-unused-parameter", _va8)) {
 		V["CFLAGS_NODIST"] = V["CFLAGS_NODIST"] " -Wno-unused-parameter"
 	}
+	if (((V["ac_cv_disable_int_conversion"] != "") && (V["ac_cv_disable_int_conversion"] != "no"))) {
+		V["CFLAGS_NODIST"] = V["CFLAGS_NODIST"] " -Wno-int-conversion"
+	}
 	delete _va9
 	_va9[1] = "-Werror"
 	_va9[0] = 1