test-rename.h: fix compilation failure

[pspp] / m4 / termios_h.m4

diff --git a/m4/termios_h.m4 b/m4/termios_h.m4
index 762151a29aa6a11880110b77abde77ddd30e93f7..151cc4fc968b49a696cbb1a4a90929ac15278e80 100644 (file)
--- a/m4/termios_h.m4
+++ b/m4/termios_h.m4
@@ -11,6 +11,17 @@ AC_DEFUN([gl_TERMIOS_H],
   AC_REQUIRE([gl_TERMIOS_H_DEFAULTS])
 
   gl_CHECK_NEXT_HEADERS([termios.h])
+
+  AC_CHECK_HEADERS_ONCE([termios.h])
+  if test $ac_cv_header_termios_h != yes; then
+    HAVE_TERMIOS_H=0
+  fi
+
+  dnl Check for declarations of anything we want to poison if the
+  dnl corresponding gnulib module is not in use, and which is not
+  dnl guaranteed by C89.
+  gl_WARN_ON_USE_PREPARE([[#include <termios.h>]],
+    [tcgetsid])
 ])
 
 AC_DEFUN([gl_TERMIOS_MODULE_INDICATOR],
@@ -24,4 +35,8 @@ AC_DEFUN([gl_TERMIOS_MODULE_INDICATOR],
 
 AC_DEFUN([gl_TERMIOS_H_DEFAULTS],
 [
+  GNULIB_TCGETSID=0;      AC_SUBST([GNULIB_TCGETSID])
+  dnl Assume proper GNU behavior unless another module says otherwise.
+  HAVE_TCGETSID=1;        AC_SUBST([HAVE_TCGETSID])
+  HAVE_TERMIOS_H=1;       AC_SUBST([HAVE_TERMIOS_H])
 ])