https://github.com/termux/termux-packages/issues/15852

--- a/configure
+++ b/configure
@@ -460,9 +460,10 @@
 {
 	msg_checking "for function $1"
 	string_function_code="
+#include <stdint.h>
 #include <string.h>
 int main() {
-	return $1;
+	return (int)(uintptr_t)$1;
 }
 "
 	if try_compile_link "$string_function_code"
--- a/scripts/checks.sh
+++ b/scripts/checks.sh
@@ -495,7 +495,8 @@
 	__func="$1"
 	shift
 	msg_checking "for function $__func"
-	if try_compile_link "char $__func(); int main(int argc, char *argv[]) { return $__func; }" "$@"
+	if try_compile_link "#include <stdint.h>
+char $__func(); int main(int argc, char *argv[]) { return (int)(uintptr_t)$__func; }" "$@"
 	then
 		msg_result yes
 		return 0