# -*- autoconf -*- # Process this file with autoconf to produce a configure script. # Copyright (C) 1991-2014 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 # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with this program. If not, see . dnl Written by Jim Meyering. 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]) AC_CONFIG_SRCDIR([src/ls.c]) AC_CONFIG_AUX_DIR([build-aux]) AC_CONFIG_HEADERS([lib/config.h:lib/config.hin]) AM_INIT_AUTOMAKE([1.11.2 no-dist-gzip dist-xz color-tests parallel-tests subdir-objects]) 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_PROG_CPP AC_PROG_GCC_TRADITIONAL AC_PROG_RANLIB AC_PROG_LN_S gl_EARLY gl_INIT coreutils_MACROS # The test suite needs to know if we have a working perl. # FIXME: this is suboptimal. Ideally, we would be able to call gl_PERL # with an ACTION-IF-NOT-FOUND argument ... cu_have_perl=yes case $PERL in *"/missing "*) cu_have_perl=no;; esac AM_CONDITIONAL([HAVE_PERL], [test $cu_have_perl = yes]) # 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]) ] ) AC_ARG_ENABLE([gcc-warnings], [AS_HELP_STRING([--enable-gcc-warnings], [turn on many GCC warnings (for developers; best with GNU make)])], [case $enableval in yes|no) ;; *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;; esac gl_gcc_warnings=$enableval], [ # GCC provides fine-grained control over diagnostics which # is used in gnulib for example to suppress warnings from # certain sections of code. So if this is available and # we're running from a git repo, then auto enable the warnings. gl_gcc_warnings=no gl_GCC_VERSION_IFELSE([4], [6], [test -d "$srcdir"/.git && gl_gcc_warnings=yes])] ) if test "$gl_gcc_warnings" = yes; then gl_WARN_ADD([-Werror], [WERROR_CFLAGS]) AC_SUBST([WERROR_CFLAGS]) 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 nw="$nw -Wsuggest-attribute=format" # warns about copy.c and factor.c # Using -Wstrict-overflow is a pain, but the alternative is worse. # For an example, see the code that provoked this report: # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33498 # Code like that still infloops with gcc-4.6.0 and -O2. Scary indeed. gl_MANYWARN_ALL_GCC([ws]) gl_MANYWARN_COMPLEMENT([ws], [$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]) # clang is unduly picky about some things. AC_CACHE_CHECK([whether the compiler is clang], [utils_cv_clang], [AC_COMPILE_IFELSE( [AC_LANG_PROGRAM([[ #ifndef __clang__ #error "not clang" #endif ]])], [utils_cv_clang=yes], [utils_cv_clang=no])]) if test $utils_cv_clang = yes; then gl_WARN_ADD([-Wno-format-extra-args]) gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare]) fi gl_WARN_ADD([-fdiagnostics-show-option]) gl_WARN_ADD([-funit-at-a-time]) AC_SUBST([WARN_CFLAGS]) AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.]) AH_VERBATIM([FORTIFY_SOURCE], [/* Enable compile-time and run-time bounds-checking, and some warnings, without upsetting glibc 2.15+. */ #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__ # define _FORTIFY_SOURCE 2 #endif ]) AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks]) # We use a slightly smaller set of warning options for lib/. # Remove the following and save the result in GNULIB_WARN_CFLAGS. nw= nw="$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([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], [if test x$ac_cv_func_tzset = xyes; then AC_RUN_IFELSE([AC_LANG_SOURCE([[#include #if STDC_HEADERS # include #endif extern char **environ; void unset_TZ (void) { char **from, **to; for (to = from = environ; (*to = *from); from++) if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '=')) to++; } int main() { time_t now = time ((time_t *) 0); int hour_GMT0, hour_unset; if (putenv ("TZ=GMT0") != 0) return 1; hour_GMT0 = localtime (&now)->tm_hour; unset_TZ (); hour_unset = localtime (&now)->tm_hour; if (putenv ("TZ=PST8") != 0) return 1; if (localtime (&now)->tm_hour == hour_GMT0) return 1; unset_TZ (); if (localtime (&now)->tm_hour != hour_unset) return 1; return 0; }]])], [utils_cv_localtime_cache=no], [utils_cv_localtime_cache=yes], [# If we have tzset, assume the worst when cross-compiling. utils_cv_localtime_cache=yes]) else # If we lack tzset, report that localtime does not cache TZ, # since we can't invalidate the cache if we don't have tzset. utils_cv_localtime_cache=no fi])dnl AC_MSG_RESULT([$utils_cv_localtime_cache]) if test $utils_cv_localtime_cache = yes; then 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]) if test $ac_cv_func_initgroups = no; then AC_CHECK_LIB([os], [initgroups]) fi 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]) LIBS="$LIBS -l$lib"; break]) done fi AC_CACHE_CHECK([for 3-argument setpriority function], [utils_cv_func_setpriority], [AC_LINK_IFELSE( [AC_LANG_PROGRAM( [[#include #include ]], [[setpriority (0, 0, 0);]])], [utils_cv_func_setpriority=yes], [utils_cv_func_setpriority=no])]) if test $utils_cv_func_setpriority = no; then AC_CHECK_FUNCS([nice]) fi case $utils_cv_func_setpriority,$ac_cv_func_nice in *yes*) gl_ADD_PROG([optional_bin_progs], [nice]) esac AC_DEFUN([coreutils_DUMMY_1], [ AC_REQUIRE([gl_READUTMP]) if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then gl_ADD_PROG([optional_bin_progs], [who]) gl_ADD_PROG([optional_bin_progs], [users]) gl_ADD_PROG([optional_bin_progs], [pinky]) fi ]) coreutils_DUMMY_1 AC_MSG_CHECKING([ut_host in struct utmp]) AC_CACHE_VAL([su_cv_func_ut_host_in_utmp], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include #include ]], [[struct utmp ut; return !sizeof ut.ut_host;]])], [su_cv_func_ut_host_in_utmp=yes], [su_cv_func_ut_host_in_utmp=no])]) AC_MSG_RESULT([$su_cv_func_ut_host_in_utmp]) if test $su_cv_func_ut_host_in_utmp = yes; then have_ut_host=1 AC_DEFINE([HAVE_UT_HOST], [1], [FIXME]) fi if test -z "$have_ut_host"; then AC_MSG_CHECKING([ut_host in struct utmpx]) AC_CACHE_VAL([su_cv_func_ut_host_in_utmpx], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include #include ]], [[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]) 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]) fi fi GNULIB_BOOT_TIME([gl_ADD_PROG([optional_bin_progs], [uptime])]) AC_SYS_POSIX_TERMIOS() gl_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL if test $ac_cv_sys_posix_termios = yes; then gl_ADD_PROG([optional_bin_progs], [stty]) AC_MSG_CHECKING([whether termios.h needs _XOPEN_SOURCE]) AC_CACHE_VAL([su_cv_sys_termios_needs_xopen_source], [AC_EGREP_CPP([yes], [#include #ifdef IUCLC yes #endif], su_cv_sys_termios_needs_xopen_source=no, AC_EGREP_CPP([yes], [#define _XOPEN_SOURCE #include #ifdef IUCLC yes #endif], su_cv_sys_termios_needs_xopen_source=yes, su_cv_sys_termios_needs_xopen_source=no))]) AC_MSG_RESULT([$su_cv_sys_termios_needs_xopen_source]) test $su_cv_sys_termios_needs_xopen_source = yes && AC_DEFINE([TERMIOS_NEEDS_XOPEN_SOURCE], [1], [FIXME]) AC_MSG_CHECKING([c_line in struct termios]) AC_CACHE_VAL([su_cv_sys_c_line_in_termios], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if TERMIOS_NEEDS_XOPEN_SOURCE #define _XOPEN_SOURCE #endif #include #include ]], [[struct termios t; return !sizeof t.c_line;]])], [su_cv_sys_c_line_in_termios=yes], [su_cv_sys_c_line_in_termios=no])]) AC_MSG_RESULT([$su_cv_sys_c_line_in_termios]) test $su_cv_sys_c_line_in_termios = yes \ && AC_DEFINE([HAVE_C_LINE], [1], [FIXME]) fi # FIXME: note that this macro appears above, too. # I'm leaving it here for now. This whole thing needs to be modernized... gl_WINSIZE_IN_PTEM gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H if test $gl_cv_sys_tiocgwinsz_needs_termios_h = no && \ test $gl_cv_sys_tiocgwinsz_needs_sys_ioctl_h = no; then AC_MSG_CHECKING([TIOCGWINSZ in sys/pty.h]) AC_CACHE_VAL([su_cv_sys_tiocgwinsz_in_sys_pty_h], [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include #ifdef WINSIZE_IN_PTEM # include # include #endif #include #include #include ]], [[int x = TIOCGWINSZ;]])], [su_cv_sys_tiocgwinsz_in_sys_pty_h=yes], [su_cv_sys_tiocgwinsz_in_sys_pty_h=no])]) AC_MSG_RESULT([$su_cv_sys_tiocgwinsz_in_sys_pty_h]) test $su_cv_sys_tiocgwinsz_in_sys_pty_h = yes \ && AC_DEFINE([GWINSZ_IN_SYS_PTY], [1], [Define if your system defines TIOCGWINSZ in sys/pty.h.]) fi # For src/kill.c. AC_CHECK_DECLS([strsignal, sys_siglist, _sys_siglist, __sys_siglist], , , [AC_INCLUDES_DEFAULT #include ]) cu_GMP # Build df only if there's a point to it. if test $gl_cv_list_mounted_fs = yes && test $gl_cv_fs_space = yes; then gl_ADD_PROG([optional_bin_progs], [df]) fi # Limit stdbuf to ELF systems with GCC AC_MSG_CHECKING([whether this is an ELF system]) AC_EGREP_CPP([yes], [#if __ELF__ yes #endif], [elf_sys=yes], [elf_sys=no]) AC_MSG_RESULT([$elf_sys]) if test "$elf_sys" = "yes" && \ test "$GCC" = "yes"; then gl_ADD_PROG([optional_bin_progs], [stdbuf]) fi ############################################################################ dnl Autogenerated by the 'gen-lists-of-programs.sh' auxiliary script. dnl Issue proper calls to the macros gl_INCLUDE_EXCLUDE_PROG and dnl gl_ADD_PROG (updating $optional_bin_progs), and generate the list dnl of coreutils programs to be built only upon explicit user request, dnl saving that list in the $no_install_progs_default shell variable. m4_include([m4/cu-progs.m4]) # Now that we know which programs will actually be built, determine # which optional helper progs should be compiled. case " $optional_bin_progs " in *' stdbuf '*) pkglibexec_PROGRAMS='src/libstdbuf.so';; *) pkglibexec_PROGRAMS='';; esac man1_MANS=` for p in $optional_bin_progs; do # Change "ginstall.1" to "install.1". test $p = ginstall && p=install # Ignore the "[" program, since writing a portable make rule to # generate its manpage is not practical. dnl Use the autoconf-provided quadrigraph to represent "[", dnl otherwise we will incur in dreadful quoting issues. test x$p = x'@<:@' && continue echo "man/$p.1" done` # Not installed by "make install", but must be built when creating # a distribution tarball. EXTRA_MANS=`for p in $no_install_progs_default; do echo man/$p.1; done` # The programs built and installed by "make && make install". # Since this is AC_SUBST'd, Automake won't be able to perform rewrite # with $(EXEEXT) appending on it, so we have to do it ourselves -- in # this case, only for $(bin_PROGRAMS). bin_PROGRAMS=` for p in $optional_bin_progs; do echo src/"$p"'$(EXEEXT)'; done` # Normalize whitespace. man1_MANS=`echo $man1_MANS` EXTRA_MANS=`echo $EXTRA_MANS` bin_PROGRAMS=`echo $bin_PROGRAMS` pkglibexec_PROGS=`echo $pkglibexec_PROGRAMS` AC_SUBST([bin_PROGRAMS]) AM_SUBST_NOTMAKE([bin_PROGRAMS]) AC_SUBST([pkglibexec_PROGRAMS]) AM_SUBST_NOTMAKE([pkglibexec_PROGRAMS]) AC_SUBST([man1_MANS]) AM_SUBST_NOTMAKE([man1_MANS]) AC_SUBST([EXTRA_MANS]) AM_SUBST_NOTMAKE([EXTRA_MANS]) AC_SUBST([built_programs], [$optional_bin_progs]) AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes]) ############################################################################ # 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([0.18.1]) # For a test of uniq: it uses the $LOCALE_FR envvar. gt_LOCALE_FR AC_CONFIG_FILES( Makefile po/Makefile.in gnulib-tests/Makefile ) AC_OUTPUT