# -*- autoconf -*-
# Process this file with autoconf to produce a configure script.
-# Copyright (C) 1991, 1993-2008 Free Software Foundation, Inc.
+# Copyright (C) 1991-2012 Free Software Foundation, Inc.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
dnl Written by Jim Meyering.
-AC_PREREQ(2.61)
+AC_PREREQ([2.64])
# Make inter-release version strings look like, e.g., v6.9-219-g58ddd, which
# indicates that it is built from the 219th delta (in _some_ repository)
# following the v6.9 tag, and that 58ddd is a prefix of the commit SHA1.
AC_INIT([GNU coreutils],
- m4_esyscmd([build-aux/git-version-gen .tarball-version]),
- [bug-coreutils@gnu.org])
+ m4_esyscmd([build-aux/git-version-gen .tarball-version]),
+ [bug-coreutils@gnu.org])
-AC_CONFIG_SRCDIR(src/ls.c)
+AC_CONFIG_SRCDIR([src/ls.c])
-AC_CONFIG_AUX_DIR(build-aux)
+AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
-AM_INIT_AUTOMAKE([1.10a dist-lzma])
+AM_INIT_AUTOMAKE([1.11.1 no-dist-gzip dist-xz color-tests parallel-tests])
+AM_SILENT_RULES([yes]) # make --enable-silent-rules the default.
+
+dnl POSIXCHECK is worthwhile for maintainers, but adds several seconds
+dnl (more than 10% execution time) to ./configure, with no benefit for
+dnl most users. Using it to look for bugs requires:
+dnl GNULIB_POSIXCHECK=1 autoreconf -f
+dnl ./configure
+dnl make
+dnl make -C src clean
+dnl make CFLAGS=-DGNULIB_POSIXCHECK=1
+dnl FIXME: Once we figure out how to avoid false positives, we should
+dnl have 'make my-distcheck' in dist-check.mk exercise this.
+m4_syscmd([test "${GNULIB_POSIXCHECK+set}" = set])
+m4_if(m4_sysval, [0], [], [dnl
+gl_ASSERT_NO_GNULIB_POSIXCHECK])
AC_PROG_CC_STDC
AM_PROG_CC_C_O
AC_ARG_ENABLE([gcc-warnings],
[AS_HELP_STRING([--enable-gcc-warnings],
- [turn on lots of GCC warnings (not recommended)])],
+ [turn on lots of GCC warnings (for developers)])],
[case $enableval in
yes|no) ;;
*) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
[gl_gcc_warnings=no]
)
+# gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
+# ------------------------------------------------
+# If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
+# Otherwise, run RUN-IF-NOT-FOUND.
+AC_DEFUN([gl_GCC_VERSION_IFELSE],
+ [AC_PREPROC_IFELSE(
+ [AC_LANG_PROGRAM(
+ [[
+#if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
+/* ok */
+#else
+# error "your version of gcc is older than $1.$2"
+#endif
+ ]]),
+ ], [$3], [$4])
+ ]
+)
+
if test "$gl_gcc_warnings" = yes; then
gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
AC_SUBST([WERROR_CFLAGS])
- gl_WARN_ADD([-Wall])
- gl_WARN_ADD([-Wextra])
- gl_WARN_ADD([-Wshadow])
- gl_WARN_ADD([-Wno-sign-compare])
- gl_WARN_ADD([-Wformat])
- gl_WARN_ADD([-Wformat-security])
- gl_WARN_ADD([-Wcast-align])
- gl_WARN_ADD([-Wpointer-arith])
- gl_WARN_ADD([-Wwrite-strings])
- gl_WARN_ADD([-Wbad-function-cast])
- gl_WARN_ADD([-Wmissing-declarations])
- gl_WARN_ADD([-Wmissing-prototypes])
- gl_WARN_ADD([-Wstrict-prototypes])
+
+ nw=
+ # This, $nw, is the list of warnings we disable.
+ nw="$nw -Wdeclaration-after-statement" # too useful to forbid
+ nw="$nw -Waggregate-return" # anachronistic
+ nw="$nw -Wlong-long" # C90 is anachronistic (lib/gethrxtime.h)
+ nw="$nw -Wc++-compat" # We don't care about C++ compilers
+ nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
+ nw="$nw -Wtraditional" # Warns on #elif which we use often
+ nw="$nw -Wcast-qual" # Too many warnings for now
+ nw="$nw -Wconversion" # Too many warnings for now
+ nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
+ nw="$nw -Wsign-conversion" # Too many warnings for now
+ nw="$nw -Wtraditional-conversion" # Too many warnings for now
+ nw="$nw -Wunreachable-code" # Too many warnings for now
+ nw="$nw -Wpadded" # Our structs are not padded
+ nw="$nw -Wredundant-decls" # openat.h declares e.g., mkdirat
+ nw="$nw -Wlogical-op" # any use of fwrite provokes this
+ nw="$nw -Wformat-nonliteral" # who.c and pinky.c strftime uses
+ nw="$nw -Wvla" # warnings in gettext.h
+ nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
+ nw="$nw -Wswitch-enum" # Too many warnings for now
+ nw="$nw -Wswitch-default" # Too many warnings for now
+ nw="$nw -Wstack-protector" # not worth working around
+ # things I might fix soon:
+ nw="$nw -Wfloat-equal" # sort.c, seq.c
+ nw="$nw -Wmissing-format-attribute" # copy.c
+ nw="$nw -Wunsafe-loop-optimizations" # a few src/*.c
+ nw="$nw -Winline" # system.h's readdir_ignoring_dot_and_dotdot
+
+ # Using -Wstrict-overflow is a pain, but the alternative is worse.
+ # For an example, see the code that provoked this report:
+ # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33498
+ # Code like that still infloops with gcc-4.6.0 and -O2. Scary indeed.
+
+ gl_MANYWARN_ALL_GCC([ws])
+ gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
+ for w in $ws; do
+ gl_WARN_ADD([$w])
+ done
+ gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
+ gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
+ gl_WARN_ADD([-Wsuggest-attribute=const])
+ gl_WARN_ADD([-Wsuggest-attribute=noreturn])
+ gl_WARN_ADD([-Wno-format-nonliteral])
+
+ # Enable this warning only with gcc-4.7 and newer. With 4.6.2 20111027,
+ # it suggests test.c's advance function may be pure, even though it
+ # increments a global variable. Oops.
+ # Normally we'd write code to test for the precise failure, but that
+ # requires a relatively large input to make gcc exhibit the failure.
+ gl_GCC_VERSION_IFELSE([4], [7], [gl_WARN_ADD([-Wsuggest-attribute=pure])])
+
+ # In spite of excluding -Wlogical-op above, it is enabled, as of
+ # gcc 4.5.0 20090517, and it provokes warnings in cat.c, dd.c, truncate.c
+ gl_WARN_ADD([-Wno-logical-op])
+
+ gl_WARN_ADD([-fdiagnostics-show-option])
+ gl_WARN_ADD([-funit-at-a-time])
+
AC_SUBST([WARN_CFLAGS])
- AC_DEFINE([lint], 1, [Define to 1 if the compiler is checking for lint.])
- AC_DEFINE([_FORTIFY_SOURCE], 2,
+
+ AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
+ AC_DEFINE([_FORTIFY_SOURCE], [2],
[enable compile-time and run-time bounds-checking, and some warnings])
+ AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
+
+ # We use a slightly smaller set of warning options for lib/.
+ # Remove the following and save the result in GNULIB_WARN_CFLAGS.
+ nw=
+ nw="$nw -Wstrict-overflow"
+ nw="$nw -Wuninitialized"
+ nw="$nw -Wunused-macros"
+ nw="$nw -Wmissing-prototypes"
+ nw="$nw -Wold-style-definition"
+ # FIXME: it may be easy to remove this, since it affects only one file:
+ # the snprintf call at ftoastr.c:132.
+ nw="$nw -Wdouble-promotion"
+ gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
+ AC_SUBST([GNULIB_WARN_CFLAGS])
+
+ # For gnulib-tests, the set is slightly smaller still.
+ nw=
+ nw="$nw -Wstrict-prototypes"
+ # It's not worth being this picky about test programs.
+ nw="$nw -Wsuggest-attribute=const"
+ nw="$nw -Wsuggest-attribute=pure"
+ gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
+ [$GNULIB_WARN_CFLAGS], [$nw])
+ AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
fi
AC_FUNC_FORK
optional_bin_progs=
-AC_CHECK_FUNCS(uname,
- gl_ADD_PROG([optional_bin_progs], [uname]))
-AC_CHECK_FUNCS(chroot,
- gl_ADD_PROG([optional_bin_progs], [chroot]))
-AC_CHECK_FUNCS(gethostid,
- gl_ADD_PROG([optional_bin_progs], [hostid]))
+AC_CHECK_FUNCS([chroot],
+ gl_ADD_PROG([optional_bin_progs], [chroot]))
+AC_CHECK_FUNCS([gethostid],
+ gl_ADD_PROG([optional_bin_progs], [hostid]))
gl_WINSIZE_IN_PTEM
-AC_MSG_CHECKING(whether localtime caches TZ)
-AC_CACHE_VAL(utils_cv_localtime_cache,
+AC_MSG_CHECKING([whether localtime caches TZ])
+AC_CACHE_VAL([utils_cv_localtime_cache],
[if test x$ac_cv_func_tzset = xyes; then
AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
#if STDC_HEADERS
time_t now = time ((time_t *) 0);
int hour_GMT0, hour_unset;
if (putenv ("TZ=GMT0") != 0)
- exit (1);
+ return 1;
hour_GMT0 = localtime (&now)->tm_hour;
unset_TZ ();
hour_unset = localtime (&now)->tm_hour;
if (putenv ("TZ=PST8") != 0)
- exit (1);
+ return 1;
if (localtime (&now)->tm_hour == hour_GMT0)
- exit (1);
+ return 1;
unset_TZ ();
if (localtime (&now)->tm_hour != hour_unset)
- exit (1);
- exit (0);
+ return 1;
+ return 0;
}]])],
[utils_cv_localtime_cache=no],
[utils_cv_localtime_cache=yes],
[# If we have tzset, assume the worst when cross-compiling.
utils_cv_localtime_cache=yes])
else
- # If we lack tzset, report that localtime does not cache TZ,
- # since we can't invalidate the cache if we don't have tzset.
- utils_cv_localtime_cache=no
+ # If we lack tzset, report that localtime does not cache TZ,
+ # since we can't invalidate the cache if we don't have tzset.
+ utils_cv_localtime_cache=no
fi])dnl
-AC_MSG_RESULT($utils_cv_localtime_cache)
+AC_MSG_RESULT([$utils_cv_localtime_cache])
if test $utils_cv_localtime_cache = yes; then
- AC_DEFINE([LOCALTIME_CACHE], 1, [FIXME])
+ AC_DEFINE([LOCALTIME_CACHE], [1], [FIXME])
fi
# SCO-ODT-3.0 is reported to need -los to link programs using initgroups
-AC_CHECK_FUNCS(initgroups)
+AC_CHECK_FUNCS([initgroups])
if test $ac_cv_func_initgroups = no; then
- AC_CHECK_LIB(os, initgroups)
+ AC_CHECK_LIB([os], [initgroups])
fi
-AC_CHECK_FUNCS(syslog)
+AC_CHECK_FUNCS([syslog])
if test $ac_cv_func_syslog = no; then
# syslog is not in the default libraries. See if it's in some other.
for lib in bsd socket inet; do
- AC_CHECK_LIB($lib, syslog, [AC_DEFINE([HAVE_SYSLOG], 1, [FIXME])
+ AC_CHECK_LIB([$lib], [syslog], [AC_DEFINE([HAVE_SYSLOG], [1], [FIXME])
LIBS="$LIBS -l$lib"; break])
done
fi
[AC_LINK_IFELSE(
[AC_LANG_PROGRAM(
[[#include <sys/time.h>
- #include <sys/resource.h>
+ #include <sys/resource.h>
]],
[[setpriority (0, 0, 0);]])],
[utils_cv_func_setpriority=yes],
])
coreutils_DUMMY_1
-AC_MSG_CHECKING(ut_host in struct utmp)
-AC_CACHE_VAL(su_cv_func_ut_host_in_utmp,
+AC_MSG_CHECKING([ut_host in struct utmp])
+AC_CACHE_VAL([su_cv_func_ut_host_in_utmp],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmp.h>]], [[struct utmp ut; return !sizeof ut.ut_host;]])],
[su_cv_func_ut_host_in_utmp=yes],
[su_cv_func_ut_host_in_utmp=no])])
-AC_MSG_RESULT($su_cv_func_ut_host_in_utmp)
+AC_MSG_RESULT([$su_cv_func_ut_host_in_utmp])
if test $su_cv_func_ut_host_in_utmp = yes; then
have_ut_host=1
- AC_DEFINE([HAVE_UT_HOST], 1, [FIXME])
+ AC_DEFINE([HAVE_UT_HOST], [1], [FIXME])
fi
if test -z "$have_ut_host"; then
- AC_MSG_CHECKING(ut_host in struct utmpx)
- AC_CACHE_VAL(su_cv_func_ut_host_in_utmpx,
+ AC_MSG_CHECKING([ut_host in struct utmpx])
+ AC_CACHE_VAL([su_cv_func_ut_host_in_utmpx],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#include <utmpx.h>]], [[struct utmpx ut; return !sizeof ut.ut_host;]])],
[su_cv_func_ut_host_in_utmpx=yes],
[su_cv_func_ut_host_in_utmpx=no])])
- AC_MSG_RESULT($su_cv_func_ut_host_in_utmpx)
+ AC_MSG_RESULT([$su_cv_func_ut_host_in_utmpx])
if test $su_cv_func_ut_host_in_utmpx = yes; then
- AC_DEFINE([HAVE_UTMPX_H], 1, [FIXME])
- AC_DEFINE([HAVE_UT_HOST], 1, [FIXME])
+ AC_DEFINE([HAVE_UTMPX_H], [1], [FIXME])
+ AC_DEFINE([HAVE_UT_HOST], [1], [FIXME])
fi
fi
if test $ac_cv_sys_posix_termios = yes; then
gl_ADD_PROG([optional_bin_progs], [stty])
- AC_MSG_CHECKING(whether termios.h needs _XOPEN_SOURCE)
- AC_CACHE_VAL(su_cv_sys_termios_needs_xopen_source,
- [AC_EGREP_CPP(yes, [#include <termios.h>
+ AC_MSG_CHECKING([whether termios.h needs _XOPEN_SOURCE])
+ AC_CACHE_VAL([su_cv_sys_termios_needs_xopen_source],
+ [AC_EGREP_CPP([yes], [#include <termios.h>
#ifdef IUCLC
yes
#endif], su_cv_sys_termios_needs_xopen_source=no,
- AC_EGREP_CPP(yes, [#define _XOPEN_SOURCE
+ AC_EGREP_CPP([yes], [#define _XOPEN_SOURCE
#include <termios.h>
#ifdef IUCLC
yes
#endif], su_cv_sys_termios_needs_xopen_source=yes,
su_cv_sys_termios_needs_xopen_source=no))])
- AC_MSG_RESULT($su_cv_sys_termios_needs_xopen_source)
+ AC_MSG_RESULT([$su_cv_sys_termios_needs_xopen_source])
test $su_cv_sys_termios_needs_xopen_source = yes &&
- AC_DEFINE([TERMIOS_NEEDS_XOPEN_SOURCE], 1, [FIXME])
+ AC_DEFINE([TERMIOS_NEEDS_XOPEN_SOURCE], [1], [FIXME])
- AC_MSG_CHECKING(c_line in struct termios)
- AC_CACHE_VAL(su_cv_sys_c_line_in_termios,
+ AC_MSG_CHECKING([c_line in struct termios])
+ AC_CACHE_VAL([su_cv_sys_c_line_in_termios],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if TERMIOS_NEEDS_XOPEN_SOURCE
#define _XOPEN_SOURCE
#endif
#include <termios.h>]], [[struct termios t; return !sizeof t.c_line;]])],
[su_cv_sys_c_line_in_termios=yes],
[su_cv_sys_c_line_in_termios=no])])
- AC_MSG_RESULT($su_cv_sys_c_line_in_termios)
+ AC_MSG_RESULT([$su_cv_sys_c_line_in_termios])
test $su_cv_sys_c_line_in_termios = yes \
- && AC_DEFINE([HAVE_C_LINE], 1, [FIXME])
+ && AC_DEFINE([HAVE_C_LINE], [1], [FIXME])
fi
# FIXME: note that this macro appears above, too.
if test $gl_cv_sys_tiocgwinsz_needs_termios_h = no && \
test $gl_cv_sys_tiocgwinsz_needs_sys_ioctl_h = no; then
- AC_MSG_CHECKING(TIOCGWINSZ in sys/pty.h)
- AC_CACHE_VAL(su_cv_sys_tiocgwinsz_in_sys_pty_h,
+ AC_MSG_CHECKING([TIOCGWINSZ in sys/pty.h])
+ AC_CACHE_VAL([su_cv_sys_tiocgwinsz_in_sys_pty_h],
[AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
#ifdef WINSIZE_IN_PTEM
# include <sys/stream.h>
#include <sys/pty.h>]], [[int x = TIOCGWINSZ;]])],
[su_cv_sys_tiocgwinsz_in_sys_pty_h=yes],
[su_cv_sys_tiocgwinsz_in_sys_pty_h=no])])
- AC_MSG_RESULT($su_cv_sys_tiocgwinsz_in_sys_pty_h)
+ AC_MSG_RESULT([$su_cv_sys_tiocgwinsz_in_sys_pty_h])
test $su_cv_sys_tiocgwinsz_in_sys_pty_h = yes \
- && AC_DEFINE([GWINSZ_IN_SYS_PTY], 1,
+ && AC_DEFINE([GWINSZ_IN_SYS_PTY], [1],
[Define if your system defines TIOCGWINSZ in sys/pty.h.])
fi
gl_ADD_PROG([optional_bin_progs], [df])
fi
+# Limit stdbuf to ELF systems with GCC
+AC_MSG_CHECKING([whether this is an ELF system])
+AC_EGREP_CPP([yes], [#if __ELF__
+yes
+#endif], [elf_sys=yes], [elf_sys=no])
+AC_MSG_RESULT([$elf_sys])
+if test "$elf_sys" = "yes" && \
+ test "$GCC" = "yes"; then
+ gl_ADD_PROG([optional_bin_progs], [stdbuf])
+fi
+
############################################################################
mk="$srcdir/src/Makefile.am"
# Extract all literal names from the definition of $(EXTRA_PROGRAMS)
$no_install_progs_default) ;;
*) AC_MSG_ERROR([[internal error: g'l_INCLUDE_EXCLUDE_PROG's 2nd arg, $t,
does not match the list of default-not-installed programs
- ($no_install_progs_default) also recorded in $mk]],
- 1) ;;
+ ($no_install_progs_default) also recorded in $mk]],
+ 1) ;;
esac
# Given the name of a variable containing a space-separated list of
# corresponding ./configure option argument is comma-separated on input.
gl_INCLUDE_EXCLUDE_PROG([optional_bin_progs], [arch,hostname,su])
+# Now that we know which programs will actually be built up, figure out
+# which optional helper progs should be compiled.
+optional_pkglib_progs=
+case " $optional_bin_progs " in
+ *' stdbuf '*) gl_ADD_PROG([optional_pkglib_progs], [libstdbuf.so]) ;;
+esac
+
# Set INSTALL_SU if su installation has been requested via
# --enable-install-program=su.
AC_SUBST([INSTALL_SU])
MAN=`echo "$optional_bin_progs "|sed 's/ /.1 /g;s/ $//'|tr -d '\\015\\012'`
-# Change ginstall.1 to "install.h" in $MAN.
+# Change "ginstall.1" to "install.1" in $MAN.
MAN=`for m in $MAN; do test $m = ginstall.1 && m=install.1; echo $m; done \
| tr '\015\012' ' '; echo`
OPTIONAL_BIN_PROGS=`echo "$optional_bin_progs "|sed 's/ /\$(EXEEXT) /g;s/ $//'`
AC_SUBST([OPTIONAL_BIN_PROGS])
+OPTIONAL_PKGLIB_PROGS=`echo "$optional_pkglib_progs " | sed 's/ $//'`
+AC_SUBST([OPTIONAL_PKGLIB_PROGS])
NO_INSTALL_PROGS_DEFAULT=$no_install_progs_default
AC_SUBST([NO_INSTALL_PROGS_DEFAULT])
AC_SUBST([CONFIG_STATUS_DEPENDENCIES])
############################################################################
+# As long as "grep 'PRI[diouxX]' po/*.pot" reports matches in
+# translatable strings, we must use need-formatstring-macros here.
AM_GNU_GETTEXT([external], [need-formatstring-macros])
-AM_GNU_GETTEXT_VERSION([0.15])
+AM_GNU_GETTEXT_VERSION([0.18.1])
# For a test of uniq: it uses the $LOCALE_FR envvar.
gt_LOCALE_FR