m4: follow GMP changes for GMP_PROG_CC_FOR_BUILD

diff --git a/aclocal.m4 b/aclocal.m4
index 513b2df49ee8ecc7bb080b23ed4f731b0ec8fa9b..e81e03512e8f69c03e2fb9b7c48911ec753f159a 100644 (file)
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -369,7 +369,7 @@ cat >conftest.c <<EOF
 int
 main ()
 {
-  exit(0);
+  return 0;
 }
 EOF
 gmp_compile="$1 conftest.c"
@@ -410,7 +410,7 @@ else
 int
 main ()
 {
-  exit (0);
+  return 0;
 }
 EOF
   for i in .exe ,ff8 ""; do