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-rw-r--r--m4/macros/type_recvfrom_fromlen.m429
1 files changed, 29 insertions, 0 deletions
diff --git a/m4/macros/type_recvfrom_fromlen.m4 b/m4/macros/type_recvfrom_fromlen.m4
new file mode 100644
index 000000000000..71812bd29789
--- /dev/null
+++ b/m4/macros/type_recvfrom_fromlen.m4
@@ -0,0 +1,29 @@
+dnl ######################################################################
+dnl check the correct type for the 6th argument to recvfrom()
+AC_DEFUN([AMU_TYPE_RECVFROM_FROMLEN],
+[
+AC_CACHE_CHECK(non-pointer type of 6th (fromlen) argument to recvfrom(),
+ac_cv_recvfrom_fromlen,
+[
+# select the correct type
+case "${host_os}" in
+ linux* )
+ ac_cv_recvfrom_fromlen="unsigned int" ;;
+ aix[[1-3]]* )
+ ac_cv_recvfrom_fromlen="int" ;;
+ aix* )
+ ac_cv_recvfrom_fromlen="size_t" ;;
+ # old macosx used "int" but all newer ones use socklen_t
+ macosx-10.[[0-3]]* )
+ ac_cv_recvfrom_fromlen="int" ;;
+ macosx* )
+ ac_cv_recvfrom_fromlen="socklen_t" ;;
+ *bsd* )
+ ac_cv_recvfrom_fromlen="socklen_t" ;;
+ * )
+ ac_cv_recvfrom_fromlen="int" ;;
+esac
+])
+AC_DEFINE_UNQUOTED(RECVFROM_FROMLEN_TYPE, $ac_cv_recvfrom_fromlen)
+])
+dnl ======================================================================