Mercurial > gnulib
view m4/mountlist.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 | 878ddb87671b |
children |
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# serial 13 dnl Copyright (C) 2002-2006, 2009-2019 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. dnl From Jim Meyering. AC_PREREQ([2.60]) AC_DEFUN([gl_MOUNTLIST], [ AC_REQUIRE([AC_CANONICAL_HOST]) AC_CHECK_FUNCS([listmntent]) AC_CHECK_HEADERS_ONCE([sys/param.h sys/statvfs.h]) # We must include grp.h before ucred.h on OSF V4.0, since ucred.h uses # NGROUPS (as the array dimension for a struct member) without a definition. AC_CHECK_HEADERS([sys/ucred.h], [], [], [#include <grp.h>]) AC_CHECK_HEADERS([sys/mount.h], [], [], [AC_INCLUDES_DEFAULT [#if HAVE_SYS_PARAM_H #include <sys/param.h> #endif ]]) AC_CHECK_HEADERS([mntent.h sys/fs_types.h]) getfsstat_includes="\ $ac_includes_default #if HAVE_SYS_PARAM_H # include <sys/param.h> /* needed by powerpc-apple-darwin1.3.7 */ #endif #if HAVE_SYS_UCRED_H # include <grp.h> /* needed for definition of NGROUPS */ # include <sys/ucred.h> /* needed by powerpc-apple-darwin1.3.7 */ #endif #if HAVE_SYS_MOUNT_H # include <sys/mount.h> #endif #if HAVE_SYS_FS_TYPES_H # include <sys/fs_types.h> /* needed by powerpc-apple-darwin1.3.7 */ #endif " AC_CHECK_MEMBERS([struct fsstat.f_fstypename],,,[$getfsstat_includes]) # Determine how to get the list of mounted file systems. ac_list_mounted_fs= # If the getmntent function is available but not in the standard library, # make sure LIBS contains the appropriate -l option. AC_FUNC_GETMNTENT if test -z "$ac_list_mounted_fs"; then # AIX. AC_CACHE_CHECK([for mntctl function and struct vmount], [fu_cv_sys_mounted_vmount], [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <fshelp.h>]])], [fu_cv_sys_mounted_vmount=yes], [fu_cv_sys_mounted_vmount=no])]) if test $fu_cv_sys_mounted_vmount = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_VMOUNT], [1], [Define if there is a function named mntctl that can be used to read the list of mounted file systems, and there is a system header file that declares 'struct vmount'. (AIX)]) fi fi if test $ac_cv_func_getmntent = yes; then # This system has the getmntent function. # Determine whether it's the one-argument variant or the two-argument one. if test -z "$ac_list_mounted_fs"; then # glibc, HP-UX, IRIX, Cygwin, Android, also (obsolete) 4.3BSD, SunOS. AC_CACHE_CHECK([for one-argument getmntent function], [fu_cv_sys_mounted_getmntent1], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ /* SunOS 4.1.x /usr/include/mntent.h needs this for FILE */ #include <stdio.h> #include <mntent.h> #if defined __ANDROID__ /* Android */ # undef MOUNTED # define MOUNTED "/proc/mounts" #elif !defined MOUNTED # if defined _PATH_MOUNTED /* GNU libc */ # define MOUNTED _PATH_MOUNTED # endif # if defined MNT_MNTTAB /* HP-UX. */ # define MOUNTED MNT_MNTTAB # endif #endif ]], [[struct mntent *mnt = 0; char *table = MOUNTED; if (sizeof mnt && sizeof table) return 0; ]])], [fu_cv_sys_mounted_getmntent1=yes], [fu_cv_sys_mounted_getmntent1=no]) ]) if test $fu_cv_sys_mounted_getmntent1 = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_GETMNTENT1], [1], [Define if there is a function named getmntent for reading the list of mounted file systems, and that function takes a single argument. (4.3BSD, SunOS, HP-UX, Irix)]) AC_CHECK_FUNCS([setmntent endmntent hasmntopt]) fi fi if test -z "$ac_list_mounted_fs"; then # Solaris >= 8. AC_CACHE_CHECK([for getextmntent function], [fu_cv_sys_mounted_getextmntent], [AC_EGREP_HEADER([getextmntent], [sys/mnttab.h], [fu_cv_sys_mounted_getextmntent=yes], [fu_cv_sys_mounted_getextmntent=no])]) if test $fu_cv_sys_mounted_getextmntent = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_GETEXTMNTENT], [1], [Define if there is a function named getextmntent for reading the list of mounted file systems. (Solaris)]) fi fi if test -z "$ac_list_mounted_fs"; then # Solaris < 8, also (obsolete) SVR4. # Solaris >= 8 has the two-argument getmntent but is already handled above. AC_CACHE_CHECK([for two-argument getmntent function], [fu_cv_sys_mounted_getmntent2], [AC_EGREP_HEADER([getmntent], [sys/mnttab.h], [fu_cv_sys_mounted_getmntent2=yes], [fu_cv_sys_mounted_getmntent2=no]) ]) if test $fu_cv_sys_mounted_getmntent2 = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_GETMNTENT2], [1], [Define if there is a function named getmntent for reading the list of mounted file systems, and that function takes two arguments. (SVR4)]) AC_CHECK_FUNCS([hasmntopt]) fi fi fi if test -z "$ac_list_mounted_fs"; then # OSF/1, also (obsolete) Apple Darwin 1.3. # powerpc-apple-darwin1.3.7 needs sys/param.h sys/ucred.h sys/fs_types.h AC_CACHE_CHECK([for getfsstat function], [fu_cv_sys_mounted_getfsstat], [AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ #include <sys/types.h> #if HAVE_STRUCT_FSSTAT_F_FSTYPENAME # define FS_TYPE(Ent) ((Ent).f_fstypename) #else # define FS_TYPE(Ent) mnt_names[(Ent).f_type] #endif $getfsstat_includes ]], [[struct statfs *stats; int numsys = getfsstat ((struct statfs *)0, 0L, MNT_WAIT); char *t = FS_TYPE (*stats); ]])], [fu_cv_sys_mounted_getfsstat=yes], [fu_cv_sys_mounted_getfsstat=no]) ]) if test $fu_cv_sys_mounted_getfsstat = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_GETFSSTAT], [1], [Define if there is a function named getfsstat for reading the list of mounted file systems. (DEC Alpha running OSF/1)]) fi fi if test -z "$ac_list_mounted_fs"; then # (obsolete) SVR3 AC_CACHE_CHECK([for FIXME existence of three headers], [fu_cv_sys_mounted_fread_fstyp], [AC_PREPROC_IFELSE([AC_LANG_SOURCE([[ #include <sys/statfs.h> #include <sys/fstyp.h> #include <mnttab.h> ]])], [fu_cv_sys_mounted_fread_fstyp=yes], [fu_cv_sys_mounted_fread_fstyp=no]) ]) if test $fu_cv_sys_mounted_fread_fstyp = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_FREAD_FSTYP], [1], [Define if (like SVR2) there is no specific function for reading the list of mounted file systems, and your system has these header files: <sys/fstyp.h> and <sys/statfs.h>. (SVR3)]) fi fi if test -z "$ac_list_mounted_fs"; then # Mac OS X, FreeBSD, NetBSD, OpenBSD, Minix, also (obsolete) 4.4BSD. # OSF/1 also has getmntinfo but is already handled above. # We cannot use AC_CHECK_FUNCS([getmntinfo]) here, because at the linker # level the function is sometimes called getmntinfo64 or getmntinfo$INODE64 # on Mac OS X, __getmntinfo13 on NetBSD and Minix, _F64_getmntinfo on OSF/1. AC_CACHE_CHECK([for getmntinfo function], [fu_cv_sys_mounted_getmntinfo], [AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ #if HAVE_SYS_PARAM_H # include <sys/param.h> #endif #include <sys/types.h> #if HAVE_SYS_MOUNT_H # include <sys/mount.h> #endif #if HAVE_SYS_STATVFS_H # include <sys/statvfs.h> #endif #include <stdlib.h> ]], [[int count = getmntinfo (NULL, MNT_WAIT); ]])], [fu_cv_sys_mounted_getmntinfo=yes], [fu_cv_sys_mounted_getmntinfo=no]) ]) if test $fu_cv_sys_mounted_getmntinfo = yes; then AC_CACHE_CHECK([whether getmntinfo returns statvfs structures], [fu_cv_sys_mounted_getmntinfo2], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #if HAVE_SYS_PARAM_H # include <sys/param.h> #endif #include <sys/types.h> #if HAVE_SYS_MOUNT_H # include <sys/mount.h> #endif #if HAVE_SYS_STATVFS_H # include <sys/statvfs.h> #endif extern #ifdef __cplusplus "C" #endif int getmntinfo (struct statfs **, int); ]], [])], [fu_cv_sys_mounted_getmntinfo2=no], [fu_cv_sys_mounted_getmntinfo2=yes]) ]) if test $fu_cv_sys_mounted_getmntinfo2 = no; then # Mac OS X, FreeBSD, OpenBSD, also (obsolete) 4.4BSD. ac_list_mounted_fs=found AC_DEFINE([MOUNTED_GETMNTINFO], [1], [Define if there is a function named getmntinfo for reading the list of mounted file systems and it returns an array of 'struct statfs'. (4.4BSD, Darwin)]) else # NetBSD, Minix. ac_list_mounted_fs=found AC_DEFINE([MOUNTED_GETMNTINFO2], [1], [Define if there is a function named getmntinfo for reading the list of mounted file systems and it returns an array of 'struct statvfs'. (NetBSD 3.0)]) fi fi fi if test -z "$ac_list_mounted_fs"; then # Haiku, also (obsolete) BeOS. AC_CHECK_FUNCS([next_dev fs_stat_dev]) AC_CHECK_HEADERS([fs_info.h]) AC_CACHE_CHECK([for BEOS mounted file system support functions], [fu_cv_sys_mounted_fs_stat_dev], [if test $ac_cv_header_fs_info_h = yes \ && test $ac_cv_func_next_dev = yes \ && test $ac_cv_func_fs_stat_dev = yes; then fu_cv_sys_mounted_fs_stat_dev=yes else fu_cv_sys_mounted_fs_stat_dev=no fi ]) if test $fu_cv_sys_mounted_fs_stat_dev = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_FS_STAT_DEV], [1], [Define if there are functions named next_dev and fs_stat_dev for reading the list of mounted file systems. (BeOS)]) fi fi if test -z "$ac_list_mounted_fs"; then # Interix / BSD alike statvfs # the code is really interix specific, so make sure, we're on it. case "$host" in *-interix*) AC_CHECK_FUNCS([statvfs]) if test $ac_cv_func_statvfs = yes; then ac_list_mounted_fs=found AC_DEFINE([MOUNTED_INTERIX_STATVFS], [1], [Define if we are on interix, and ought to use statvfs plus some special knowledge on where mounted file systems can be found. (Interix)]) fi ;; esac fi if test -z "$ac_list_mounted_fs"; then AC_MSG_ERROR([could not determine how to read list of mounted file systems]) # FIXME -- no need to abort building the whole package # Can't build mountlist.c or anything that needs its functions fi if test $ac_list_mounted_fs = found; then gl_cv_list_mounted_fs=yes else gl_cv_list_mounted_fs=no fi ]) # Prerequisites of lib/mountlist.c not done by gl_MOUNTLIST. AC_DEFUN([gl_PREREQ_MOUNTLIST_EXTRA], [ dnl Note gl_MOUNTLIST checks for mntent.h, not sys/mntent.h. AC_CHECK_HEADERS([sys/mntent.h]) AC_HEADER_MAJOR()dnl for use of makedev () gl_FSTYPENAME ]) # Replace Autoconf's AC_FUNC_GETMNTENT to omit checks that are unnecessary # nowadays. AC_DEFUN([AC_FUNC_GETMNTENT], [ # getmntent is in the standard C library on UNICOS, in -lsun on Irix 4, # -lgen on Unixware. AC_SEARCH_LIBS([getmntent], [sun gen]) AC_CHECK_FUNCS([getmntent]) ])