1 files changed, 32 insertions, 0 deletions
diff --git a/m4/getlogin.m4 b/m4/getlogin.m4
new file mode 100644
index 0000000..d51d6cf
--- /dev/null
+++ b/m4/getlogin.m4
@@ -0,0 +1,32 @@
+# getlogin.m4 serial 5
+dnl Copyright (C) 2010-2022 Free Software Foundation, Inc.
+dnl This file is free software; the Free Software Foundation
+dnl gives unlimited permission to copy and/or distribute it,
+dnl with or without modifications, as long as this notice is preserved.
+
+AC_DEFUN([gl_FUNC_GETLOGIN],
+[
+  AC_REQUIRE([gl_UNISTD_H_DEFAULTS])
+  AC_CHECK_DECLS_ONCE([getlogin])
+  if test $ac_cv_have_decl_getlogin = no; then
+    HAVE_DECL_GETLOGIN=0
+  fi
+  AC_CHECK_FUNCS_ONCE([getlogin])
+  if test $ac_cv_func_getlogin = no; then
+    HAVE_GETLOGIN=0
+  fi
+])
+
+dnl Determines the library needed by the implementation of the
+dnl getlogin and getlogin_r functions.
+AC_DEFUN([gl_LIB_GETLOGIN],
+[
+  AC_REQUIRE([AC_CANONICAL_HOST])
+  case $host_os in
+    mingw*)
+      LIB_GETLOGIN='-ladvapi32' ;;
+    *)
+      LIB_GETLOGIN= ;;
+  esac
+  AC_SUBST([LIB_GETLOGIN])
+])