New module 'tcgetsid'.

[gnulib.git] / m4 / tcgetsid.m4

diff --git a/m4/tcgetsid.m4 b/m4/tcgetsid.m4
new file mode 100644 (file)
index 0000000..11dcc3d
--- /dev/null
+++ b/m4/tcgetsid.m4
@@ -0,0 +1,25 @@
+# tcgetsid.m4 serial 1
+dnl Copyright (C) 2010 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_TCGETSID],
+[
+  AC_REQUIRE([gl_TERMIOS_H_DEFAULTS])
+
+  dnl Persuade glibc <termios.h> to declare tcgetsid().
+  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
+
+  AC_CHECK_FUNCS([tcgetsid])
+  if test $ac_cv_func_tcgetsid = no; then
+    HAVE_TCGETSID=0
+    AC_LIBOBJ([tcgetsid])
+    gl_PREREQ_TCGETSID
+  fi
+])
+
+# Prerequisites of lib/tcgetsid.c.
+AC_DEFUN([gl_PREREQ_TCGETSID], [
+  :
+])