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-rw-r--r--gl/m4/getdelim.m490
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diff --git a/gl/m4/getdelim.m4 b/gl/m4/getdelim.m4
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--- a/gl/m4/getdelim.m4
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-# getdelim.m4 serial 11
-
-dnl Copyright (C) 2005-2007, 2009-2016 Free Software Foundation, Inc.
-dnl
-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_PREREQ([2.59])
-
-AC_DEFUN([gl_FUNC_GETDELIM],
-[
- AC_REQUIRE([gl_STDIO_H_DEFAULTS])
-
- dnl Persuade glibc <stdio.h> to declare getdelim().
- AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
-
- AC_CHECK_DECLS_ONCE([getdelim])
-
- AC_CHECK_FUNCS_ONCE([getdelim])
- if test $ac_cv_func_getdelim = yes; then
- HAVE_GETDELIM=1
- dnl Found it in some library. Verify that it works.
- AC_CACHE_CHECK([for working getdelim function], [gl_cv_func_working_getdelim],
- [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data
- AC_RUN_IFELSE([AC_LANG_SOURCE([[
-# include <stdio.h>
-# include <stdlib.h>
-# include <string.h>
- int main ()
- {
- FILE *in = fopen ("./conftest.data", "r");
- if (!in)
- return 1;
- {
- /* Test result for a NULL buffer and a zero size.
- Based on a test program from Karl Heuer. */
- char *line = NULL;
- size_t siz = 0;
- int len = getdelim (&line, &siz, '\n', in);
- if (!(len == 4 && line && strcmp (line, "foo\n") == 0))
- return 2;
- }
- {
- /* Test result for a NULL buffer and a non-zero size.
- This crashes on FreeBSD 8.0. */
- char *line = NULL;
- size_t siz = (size_t)(~0) / 4;
- if (getdelim (&line, &siz, '\n', in) == -1)
- return 3;
- free (line);
- }
- fclose (in);
- return 0;
- }
- ]])], [gl_cv_func_working_getdelim=yes] dnl The library version works.
- , [gl_cv_func_working_getdelim=no] dnl The library version does NOT work.
- , dnl We're cross compiling. Assume it works on glibc2 systems.
- [AC_EGREP_CPP([Lucky GNU user],
- [
-#include <features.h>
-#ifdef __GNU_LIBRARY__
- #if (__GLIBC__ >= 2) && !defined __UCLIBC__
- Lucky GNU user
- #endif
-#endif
- ],
- [gl_cv_func_working_getdelim="guessing yes"],
- [gl_cv_func_working_getdelim="guessing no"])]
- )])
- case "$gl_cv_func_working_getdelim" in
- *no)
- REPLACE_GETDELIM=1
- ;;
- esac
- else
- HAVE_GETDELIM=0
- fi
-
- if test $ac_cv_have_decl_getdelim = no; then
- HAVE_DECL_GETDELIM=0
- fi
-])
-
-# Prerequisites of lib/getdelim.c.
-AC_DEFUN([gl_PREREQ_GETDELIM],
-[
- AC_CHECK_FUNCS([flockfile funlockfile])
- AC_CHECK_DECLS([getc_unlocked])
-])