Mercurial > gnulib
view m4/getdomainname.m4 @ 40177:dcd889592b62
dtoastr,ftoastr,ldtoastr: port to c-strtod changes
Decouple these modules from c-strtod. Nowadays it’s reasonable to
assume the C99 signatures for strtod and strtold. Programs that
require stricter adherence to C99 should also use the strtod and
strtold modules as needed, and we no longer need the
HAVE_C99_STRTOLD macro.
* NEWS: Mention this.
* lib/ftoastr.c (STRTOF) [LENGTH == 3]: Assume strtold.
* m4/c-strtod.m4 (gl_C_STRTOLD): Do not define HAVE_C99_STRTOLD.
* modules/dtoastr, modules/ftoastr, modules/ldtoastr:
(Files): Remove m4/c-strtod.m4.
(configure.ac): Do not require gl_C99_STRTOLD, which no longer
exists.
author | Paul Eggert <eggert@cs.ucla.edu> |
---|---|
date | Sat, 02 Feb 2019 13:01:55 -0800 |
parents | b06060465f09 |
children |
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# getdomainname.m4 serial 10 dnl Copyright (C) 2002-2003, 2008-2019 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_GETDOMAINNAME], [ AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) AC_REQUIRE([gl_HEADER_SYS_SOCKET])dnl for HAVE_SYS_SOCKET_H AC_REQUIRE([gl_HEADER_NETDB])dnl for HAVE_NETDB_H dnl Persuade glibc <unistd.h> to declare getdomainname(). AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS]) dnl Where is getdomainname() defined? dnl - On Solaris, it is in libnsl. But this function is not declared and dnl is discouraged, see dnl <http://www.sun.com/software/solaris/programs/abi/appcert_faq.xml#q18>. dnl We need to avoid a collision with this function. dnl - Otherwise it is in libc. AC_CHECK_FUNCS([getdomainname], , [ AC_CACHE_CHECK([for getdomainname in -lnsl], [gl_cv_func_getdomainname_in_libnsl], [gl_cv_func_getdomainname_in_libnsl=no gl_save_LIBS="$LIBS" LIBS="$LIBS -lnsl" AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include <stddef.h> extern #ifdef __cplusplus "C" #endif int getdomainname (char *, size_t); ]], [[getdomainname(NULL, 0);]])], [gl_cv_func_getdomainname_in_libnsl=yes]) LIBS="$gl_save_LIBS" ]) ]) dnl What about the declaration? dnl - It's int getdomainname(char *, size_t) on glibc, NetBSD, OpenBSD. dnl - It's int getdomainname(char *, int) on Mac OS X, FreeBSD, AIX, IRIX, dnl OSF/1. AC_CHECK_DECLS([getdomainname], , , [[#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #include <unistd.h> ]]) AC_CACHE_CHECK([for getdomainname's second argument type], [gl_cv_decl_getdomainname_argtype2], [if test $ac_cv_have_decl_getdomainname; then AC_COMPILE_IFELSE( [AC_LANG_PROGRAM( [[#include <sys/types.h> #ifdef HAVE_SYS_SOCKET_H #include <sys/socket.h> #endif #ifdef HAVE_NETDB_H #include <netdb.h> #endif #include <unistd.h> extern #ifdef __cplusplus "C" #endif int getdomainname (char *, int); ]], [[]])], [gl_cv_decl_getdomainname_argtype2='int'], [gl_cv_decl_getdomainname_argtype2='size_t']) else gl_cv_decl_getdomainname_argtype2='int' fi ]) if test $ac_cv_have_decl_getdomainname = no; then HAVE_DECL_GETDOMAINNAME=0 fi if { test $ac_cv_func_getdomainname = yes \ && test $gl_cv_decl_getdomainname_argtype2 != size_t; \ } \ || test "$gl_cv_func_getdomainname_in_libnsl" = yes; then REPLACE_GETDOMAINNAME=1 fi ]) # Prerequisites of lib/getdomainname.c. AC_DEFUN([gl_PREREQ_GETDOMAINNAME], [ if test $ac_cv_func_getdomainname = yes; then AC_DEFINE([HAVE_GETDOMAINNAME], [1], [Define if the getdomainname() function is present and can be used.]) fi AC_CHECK_HEADERS([sys/systeminfo.h]) AC_CHECK_FUNCS([sysinfo]) ])