From 6e7a315eb67cb6c113cf37e1d66c4f11a51a2b3e Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 18:29:51 +0200 Subject: Adding upstream version 2.06. Signed-off-by: Daniel Baumann --- m4/getline.m4 | 99 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 m4/getline.m4 (limited to 'm4/getline.m4') diff --git a/m4/getline.m4 b/m4/getline.m4 new file mode 100644 index 0000000..5b2ead2 --- /dev/null +++ b/m4/getline.m4 @@ -0,0 +1,99 @@ +# getline.m4 serial 28 + +dnl Copyright (C) 1998-2003, 2005-2007, 2009-2019 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, +dnl with or without modifications, as long as this notice is preserved. + +AC_PREREQ([2.59]) + +dnl See if there's a working, system-supplied version of the getline function. +dnl We can't just do AC_REPLACE_FUNCS([getline]) because some systems +dnl have a function by that name in -linet that doesn't have anything +dnl to do with the function we need. +AC_DEFUN([gl_FUNC_GETLINE], +[ + AC_REQUIRE([gl_STDIO_H_DEFAULTS]) + + dnl Persuade glibc to declare getline(). + AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) + + AC_CHECK_DECLS_ONCE([getline]) + + 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]) + if test $gl_getline_needs_run_time_check = yes; then + AC_CACHE_CHECK([for working getline function], [am_cv_func_working_getline], + [echo fooNbarN | tr -d '\012' | tr N '\012' > conftest.data + AC_RUN_IFELSE([AC_LANG_SOURCE([[ +# include +# include +# include + 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 = getline (&line, &siz, in); + if (!(len == 4 && line && strcmp (line, "foo\n") == 0)) + { free (line); fclose (in); return 2; } + free (line); + } + { + /* 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) + { fclose (in); return 3; } + free (line); + } + fclose (in); + 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. + , dnl We're cross compiling. Assume it works on glibc2 systems. + [AC_EGREP_CPP([Lucky GNU user], + [ +#include +#ifdef __GNU_LIBRARY__ + #if (__GLIBC__ >= 2) && !defined __UCLIBC__ + Lucky GNU user + #endif +#endif + ], + [am_cv_func_working_getline="guessing yes"], + [am_cv_func_working_getline="guessing no"])] + )]) + fi + + if test $ac_cv_have_decl_getline = no; then + HAVE_DECL_GETLINE=0 + fi + + case "$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], +[ + : +]) -- cgit v1.2.3