-# getline.m4 serial 19
+# getline.m4 serial 26
-dnl Copyright (C) 1998-2003, 2005-2007, 2009 Free Software Foundation, Inc.
+dnl Copyright (C) 1998-2003, 2005-2007, 2009-2013 Free Software Foundation,
+dnl Inc.
dnl
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
gl_getline_needs_run_time_check=no
AC_CHECK_FUNC([getline],
- dnl Found it in some library. Verify that it works.
- gl_getline_needs_run_time_check=yes,
- am_cv_func_working_getline=no)
+ [dnl Found it in some library. Verify that it works.
+ gl_getline_needs_run_time_check=yes],
+ [am_cv_func_working_getline=no])
if test $gl_getline_needs_run_time_check = yes; then
AC_CACHE_CHECK([for working getline function], [am_cv_func_working_getline],
- [echo fooN |tr -d '\012'|tr N '\012' > conftest.data
- AC_TRY_RUN([
+ [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data
+ AC_RUN_IFELSE([AC_LANG_SOURCE([[
# include <stdio.h>
# include <stdlib.h>
# include <string.h>
int main ()
- { /* Based on a test program from Karl Heuer. */
- char *line = NULL;
- size_t siz = 0;
- int len;
+ {
FILE *in = fopen ("./conftest.data", "r");
if (!in)
- return 1;
- len = getline (&line, &siz, in);
- exit ((len == 4 && line && strcmp (line, "foo\n") == 0) ? 0 : 1);
+ return 1;
+ {
+ /* Test result for a NULL buffer and a zero size.
+ Based on a test program from Karl Heuer. */
+ char *line = NULL;
+ size_t siz = 0;
+ int len = getline (&line, &siz, in);
+ if (!(len == 4 && line && strcmp (line, "foo\n") == 0))
+ return 2;
+ }
+ {
+ /* Test result for a NULL buffer and a non-zero size.
+ This crashes on FreeBSD 8.0. */
+ char *line = NULL;
+ size_t siz = (size_t)(~0) / 4;
+ if (getline (&line, &siz, in) == -1)
+ return 3;
+ }
+ return 0;
}
- ], am_cv_func_working_getline=yes dnl The library version works.
- , am_cv_func_working_getline=no dnl The library version does NOT work.
+ ]])], [am_cv_func_working_getline=yes] dnl The library version works.
+ , [am_cv_func_working_getline=no] dnl The library version does NOT work.
, dnl We're cross compiling. Assume it works on glibc2 systems.
[AC_EGREP_CPP([Lucky GNU user],
[
#include <features.h>
#ifdef __GNU_LIBRARY__
- #if (__GLIBC__ >= 2)
+ #if (__GLIBC__ >= 2) && !defined __UCLIBC__
Lucky GNU user
#endif
#endif
],
- [am_cv_func_working_getline=yes],
- [am_cv_func_working_getline=no])]
+ [am_cv_func_working_getline="guessing yes"],
+ [am_cv_func_working_getline="guessing no"])]
)])
fi
HAVE_DECL_GETLINE=0
fi
- if test $am_cv_func_working_getline = no; then
- REPLACE_GETLINE=1
- AC_LIBOBJ([getline])
-
- gl_PREREQ_GETLINE
- fi
+ case "$am_cv_func_working_getline" in
+ *no)
+ dnl Set REPLACE_GETLINE always: Even if we have not found the broken
+ dnl getline function among $LIBS, it may exist in libinet and the
+ dnl executable may be linked with -linet.
+ REPLACE_GETLINE=1
+ ;;
+ esac
])
# Prerequisites of lib/getline.c.
AC_DEFUN([gl_PREREQ_GETLINE],
[
- gl_FUNC_GETDELIM
+ :
])