2 # Process this file with autoconf to produce a configure script.
4 # Copyright (C) 1991-2024 Free Software Foundation, Inc.
6 # This program is free software: you can redistribute it and/or modify
7 # it under the terms of the GNU General Public License as published by
8 # the Free Software Foundation, either version 3 of the License, or
9 # (at your option) any later version.
11 # This program is distributed in the hope that it will be useful,
12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 # GNU General Public License for more details.
16 # You should have received a copy of the GNU General Public License
17 # along with this program. If not, see <https://www.gnu.org/licenses/>.
19 dnl Written by Jim Meyering.
23 # Make inter-release version strings look like, e.g., v6.9-219-g58ddd, which
24 # indicates that it is built from the 219th delta (in _some_ repository)
25 # following the v6.9 tag, and that 58ddd is a prefix of the commit SHA1.
26 # The explicit URL can be removed when autoconf > 2.69 is released.
27 AC_INIT([GNU coreutils],
28 m4_esyscmd([build-aux/git-version-gen .tarball-version]),
29 [bug-coreutils@gnu.org],
31 [https://www.gnu.org/software/coreutils/])
33 AC_CONFIG_SRCDIR([src/ls.c])
35 AC_CONFIG_AUX_DIR([build-aux])
36 AC_CONFIG_HEADERS([lib/config.h:lib/config.hin])
38 AM_INIT_AUTOMAKE([1.11.2 dist-xz color-tests parallel-tests subdir-objects])
39 AM_SILENT_RULES([yes]) # make --enable-silent-rules the default.
41 dnl POSIXCHECK is worthwhile for maintainers, but adds several seconds
42 dnl (more than 10% execution time) to ./configure, with no benefit for
43 dnl most users. Using it to look for bugs requires:
44 dnl GNULIB_POSIXCHECK=1 autoreconf -f
48 dnl make CFLAGS=-DGNULIB_POSIXCHECK=1
49 dnl FIXME: Once we figure out how to avoid false positives, we should
50 dnl have 'make my-distcheck' in dist-check.mk exercise this.
51 m4_syscmd([test "${GNULIB_POSIXCHECK+set}" = set])
52 m4_if(m4_sysval, [0], [], [dnl
53 gl_ASSERT_NO_GNULIB_POSIXCHECK])
62 gl_SET_CRYPTO_CHECK_DEFAULT([auto-gpl-compat])
66 # These are safe, since 'sort', coreutils's only multithreaded app,
67 # does not use the relevant modules.
68 AC_DEFINE([GNULIB_EXCLUDE_SINGLE_THREAD], [1],
69 [Define to 1 if apps call 'exclude' functions from a single thread.])
70 AC_DEFINE([GNULIB_REGEX_SINGLE_THREAD], [1],
71 [Define to 1 if apps call 'regex' functions from a single thread.])
72 # Although 'sort' is multithreaded and can use these functions,
73 # it uses them only from the main thread.
74 AC_DEFINE([GNULIB_MBRTOWC_SINGLE_THREAD], [1],
75 [Define to 1 if apps call mbrtowc, mbrtoc32, and 'regex' functions
76 from a single thread.])
77 # This is safe, since all apps set locale early.
78 AC_DEFINE([GNULIB_WCHAR_SINGLE_LOCALE], [1],
79 [Define to 1 if apps don't set the locale after calling
80 locale-sensitive functions like mbrtowc and wcwidth.])
82 AC_DEFINE([GNULIB_MBRTOC32_REGULAR], [1],
83 [Do not worry about rare encodings like CP864, EBCDIC, Johab, and Shift JIS
84 that glibc does not support.])
86 # The test suite needs to know if we have a working perl.
87 AM_CONDITIONAL([HAVE_PERL], [test "$gl_cv_prog_perl" != no])
89 # gl_GCC_VERSION_IFELSE([major], [minor], [run-if-found], [run-if-not-found])
90 # ------------------------------------------------
91 # If $CPP is gcc-MAJOR.MINOR or newer, then run RUN-IF-FOUND.
92 # Otherwise, run RUN-IF-NOT-FOUND.
93 AC_DEFUN([gl_GCC_VERSION_IFELSE],
97 #if ($1) < __GNUC__ || (($1) == __GNUC__ && ($2) <= __GNUC_MINOR__)
100 # error "your version of gcc is older than $1.$2"
107 AC_ARG_ENABLE([single-binary],
108 [AS_HELP_STRING([--enable-single-binary=[shebangs|symlinks]],
109 [Compile all the tools in a single binary, reducing the overall size.
110 When compiled this way, shebangs (default when enabled) or symlinks are
111 installed for each tool that points to the single binary.])],
112 [gl_single_binary=no ;
114 yes) gl_single_binary=shebangs ;;
115 no|shebangs|symlinks) gl_single_binary=$enableval ;;
116 *) AC_MSG_ERROR([bad value $enableval for single-binary option.
117 Options are: symlinks, shebangs, no.]) ;;
119 [gl_single_binary=no]
121 AC_ARG_ENABLE([single-binary-exceptions],
122 [AS_HELP_STRING([--enable-single-binary-exceptions=PROG_LIST],
123 [When used with --enable-single-binary, exclude the PROG_LIST from
124 it, so these programs are compiled as separated files
125 (comma-separated, default none))])],
126 [gl_single_binary_exceptions=$enableval],
127 [gl_single_binary_exceptions=]
129 if test "$gl_single_binary" = 'symlinks'; then
130 if ! test "`echo ls | sed \"$program_transform_name\"`" = 'ls'; then
131 AC_MSG_ERROR([program name transformations are not currently supported
132 with --enable-single-binary=symlinks.])
135 AM_CONDITIONAL([SINGLE_BINARY], [test "$gl_single_binary" != no])
137 AC_ARG_ENABLE([bold-man-page-references],
138 [AS_HELP_STRING([--disable-bold-man-page-references],
139 [When generating man pages, do not apply bold style around any
140 references like name(1) etc.])],
141 [gl_bold_manpages=yes ;
143 no|yes) gl_bold_manpages=$enableval ;;
144 *) AC_MSG_ERROR([bad value $enableval for bold-man-page-references.
145 Options are: yes, no.]) ;;
147 [gl_bold_manpages=yes]
149 AM_CONDITIONAL([BOLD_MAN_REFS], [test "$gl_bold_manpages" != no])
151 AC_ARG_ENABLE([gcc-warnings],
152 [AS_HELP_STRING([--enable-gcc-warnings@<:@=TYPE@:>@],
153 [control generation of GCC warnings. The TYPE 'no' disables
154 warnings (default for non-developer builds); 'yes' generates
155 cheap warnings if available (default for developer builds);
156 'expensive' in addition generates expensive-to-compute warnings
160 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
162 gl_gcc_warnings=$enableval],
164 # GCC provides fine-grained control over diagnostics which
165 # is used in gnulib for example to suppress warnings from
166 # certain sections of code. So if this is available and
167 # we're running from a git repo, then auto enable the warnings.
169 gl_GCC_VERSION_IFELSE([4], [6],
170 [test -d "$srcdir"/.git \
171 && ! test -f "$srcdir"/.tarball-version \
172 && gl_gcc_warnings=yes])]
175 # clang is unduly picky about some things, even by default.
176 if test "$gl_cv_compiler_clang" = yes; then
177 gl_WARN_ADD([-Wno-format-extra-args])
178 gl_WARN_ADD([-Wno-implicit-const-int-float-conversion])
179 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
182 if test $gl_gcc_warnings != no; then
183 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
184 AC_SUBST([WERROR_CFLAGS])
187 AS_IF([test $gl_gcc_warnings != expensive],
188 [# -fanalyzer and related options slow GCC considerably.
189 ew="$ew -fanalyzer -Wno-analyzer-malloc-leak"])
191 # This, $nw, is the list of warnings we disable.
193 nw="$nw -Wdeclaration-after-statement" # too useful to forbid
194 nw="$nw -Waggregate-return" # anachronistic
195 nw="$nw -Wlong-long" # C90 is anachronistic (lib/gethrxtime.h)
196 nw="$nw -Wc++-compat" # We don't care about C++ compilers
197 nw="$nw -Wundef" # Warns on '#if GNULIB_FOO' etc in gnulib
198 nw="$nw -Wtraditional" # Warns on #elif which we use often
199 nw="$nw -Wcast-qual" # Too many warnings for now
200 nw="$nw -Wconversion" # Too many warnings for now
201 nw="$nw -Wsign-conversion" # Too many warnings for now
202 nw="$nw -Wtraditional-conversion" # Too many warnings for now
203 nw="$nw -Wunreachable-code" # Too many warnings for now
204 nw="$nw -Wpadded" # Our structs are not padded
205 nw="$nw -Wredundant-decls" # openat.h declares e.g., mkdirat
206 nw="$nw -Wformat-nonliteral" # who.c and pinky.c strftime uses
207 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
208 nw="$nw -Wswitch-enum" # Too many warnings for now
209 nw="$nw -Wswitch-default" # Too many warnings for now
210 nw="$nw -Wstack-protector" # not worth working around
211 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 110333
212 nw="$nw -Wformat-truncation=2" # False alarm in ls.c, probably related
213 # things I might fix soon:
214 nw="$nw -Wfloat-equal" # sort.c, seq.c
215 nw="$nw -Wmissing-format-attribute" # copy.c
216 nw="$nw -Wunsafe-loop-optimizations" # a few src/*.c
217 nw="$nw -Winline" # system.h's readdir_ignoring_dot_and_dotdot
218 nw="$nw -Wvector-operation-performance" # warns about randperm.c
220 # Suppress noreturn warnings with single binaries; otherwise
221 # GCC complains about the renamed 'main' not being declared noreturn
222 # because 'main_exit' calls 'exit' when linting.
223 if test "$gl_single_binary" != no; then
224 nw="$nw -Wsuggest-attribute=noreturn"
227 # Using -Wstrict-overflow is a pain, but the alternative is worse.
228 # For an example, see the code that provoked this report:
229 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=33498
230 # Code like that still infloops with gcc-4.6.0 and -O2. Scary indeed.
232 gl_MANYWARN_ALL_GCC([ws])
233 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
237 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
238 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
239 gl_WARN_ADD([-Wno-format-nonliteral])
241 gl_WARN_ADD([-fdiagnostics-show-option])
242 gl_WARN_ADD([-funit-at-a-time])
244 AC_SUBST([WARN_CFLAGS])
246 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
247 AH_VERBATIM([FORTIFY_SOURCE],
248 [/* Enable compile-time and run-time bounds-checking, and some warnings,
249 without upsetting glibc 2.15+. */
250 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
251 # define _FORTIFY_SOURCE 2
254 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
256 # We use a slightly smaller set of warning options for lib/.
257 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
259 nw="$nw -Wduplicated-branches" # Too many false alarms
260 nw="$nw -Wformat-truncation=2"
261 nw="$nw -Wmissing-variable-declarations"
262 nw="$nw -Wstrict-overflow"
263 nw="$nw -Wuninitialized"
264 nw="$nw -Wunused-macros"
265 nw="$nw -Wmissing-prototypes"
266 nw="$nw -Wold-style-definition"
267 # FIXME: it may be easy to remove this, since it affects only one file:
268 # the snprintf call at ftoastr.c:132.
269 nw="$nw -Wdouble-promotion"
271 # FIXME: remove this line when gcc improves
272 # FP in careadlinkat.c w/gcc 10.0.1 20200205
273 gl_WARN_ADD([-Wno-return-local-addr])
275 # FIXME: remove this line when gcc improves
276 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88443
277 gl_WARN_ADD([-Wno-stringop-overflow])
279 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
280 AC_SUBST([GNULIB_WARN_CFLAGS])
282 # For gnulib-tests, the set is slightly smaller still.
284 nw="$nw -Wstrict-prototypes"
285 # It's not worth being this picky about test programs.
286 nw="$nw -Wsuggest-attribute=cold"
287 nw="$nw -Wsuggest-attribute=const"
288 nw="$nw -Wsuggest-attribute=format"
289 nw="$nw -Wsuggest-attribute=pure"
290 gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
291 [$GNULIB_WARN_CFLAGS], [$nw])
292 AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
298 AC_CHECK_FUNCS([chroot],
299 gl_ADD_PROG([optional_bin_progs], [chroot]))
300 AC_CHECK_FUNCS([gethostid],
301 gl_ADD_PROG([optional_bin_progs], [hostid]))
302 AC_CHECK_FUNCS([sigsuspend],
303 gl_ADD_PROG([optional_bin_progs], [timeout]))
307 AC_MSG_CHECKING([whether localtime caches TZ])
308 AC_CACHE_VAL([utils_cv_localtime_cache],
309 [if test x$ac_cv_func_tzset = xyes; then
310 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
314 extern char **environ;
318 for (to = from = environ; (*to = *from); from++)
319 if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
325 time_t now = time ((time_t *) 0);
326 int hour_GMT0, hour_unset;
327 if (putenv ("TZ=GMT0") != 0)
329 hour_GMT0 = localtime (&now)->tm_hour;
331 hour_unset = localtime (&now)->tm_hour;
332 if (putenv ("TZ=PST8") != 0)
334 if (localtime (&now)->tm_hour == hour_GMT0)
337 if (localtime (&now)->tm_hour != hour_unset)
341 [utils_cv_localtime_cache=no],
342 [utils_cv_localtime_cache=yes],
343 [# If we have tzset, assume the worst when cross-compiling.
344 utils_cv_localtime_cache=yes])
346 # If we lack tzset, report that localtime does not cache TZ,
347 # since we can't invalidate the cache if we don't have tzset.
348 utils_cv_localtime_cache=no
350 AC_MSG_RESULT([$utils_cv_localtime_cache])
351 if test $utils_cv_localtime_cache = yes; then
352 AC_DEFINE([LOCALTIME_CACHE], [1], [FIXME])
355 # Find the library for dynamic loading of shared libraries.
356 AC_SEARCH_LIBS([dlopen], [dl])
357 AS_CASE([$ac_cv_search_dlopen],
358 [no | 'none required'],
361 [LIB_DL="$ac_cv_search_dlopen"])
364 # Should 'sort' link libcrypto dynamically?
365 AS_CASE([$LIB_CRYPTO],
367 [# Check for dlopen and libcrypto dynamic linking in one program,
368 # as there's little point to checking them separately.
369 AC_CACHE_CHECK([for dlopen and whether libcrypto is linked dynamically],
370 [utils_cv_dlopen_libcrypto],
371 [utils_cv_dlopen_libcrypto=no
373 LIBS="$LIBS $LIB_DL $LIB_CRYPTO"
377 #include <openssl/sha.h>
378 /* Use SHA512 rather than MD5 here to avoid deprecation warnings.
379 So need to check HAVE_OPENSSL_MD5.. with DLOPEN_LIBCRYPTO. */
381 [[return !(dlopen ("libcrypto.so", RTLD_LAZY | RTLD_GLOBAL)
382 && SHA512 (0, 0, 0));]])],
383 [# readelf works with cross-builds; ldd works on more platforms.
384 LIBCRYPTO_SONAME="`(readelf -d conftest$EXEEXT || ldd conftest$EXEEXT
386 sed -n 's/.*\(libcrypto\.so\.[[.0-9]]*\).*/\1/p'`"
387 AS_CASE([$LIBCRYPTO_SONAME],
389 [utils_cv_dlopen_libcrypto=yes])])
391 AS_CASE([$utils_cv_dlopen_libcrypto],
393 [AC_DEFINE([DLOPEN_LIBCRYPTO], [1],
394 [Define to 1 if dlopen exists and libcrypto is
395 linked dynamically.])
396 AC_DEFINE_UNQUOTED([LIBCRYPTO_SONAME], ["$LIBCRYPTO_SONAME"],
397 [versioned libcrypto])
401 AC_CHECK_FUNCS([fclonefileat])
403 # Assume that if getattrat exists, it's compatible with Solaris 11.
404 AC_CHECK_FUNCS([getattrat])
405 if test $ac_cv_func_getattrat = yes; then
407 AC_SUBST([LIB_NVPAIR])
410 # glibc >= 2.28 and linux kernel >= 4.11
411 AC_CHECK_FUNCS([statx])
413 # SCO-ODT-3.0 is reported to need -los to link programs using initgroups
414 AC_CHECK_FUNCS([initgroups])
415 if test $ac_cv_func_initgroups = no; then
416 AC_CHECK_LIB([os], [initgroups])
419 AC_CHECK_FUNCS([syslog])
420 if test $ac_cv_func_syslog = no; then
421 # syslog is not in the default libraries. See if it's in some other.
422 for lib in bsd socket inet; do
423 AC_CHECK_LIB([$lib], [syslog], [AC_DEFINE([HAVE_SYSLOG], [1], [FIXME])
424 LIBS="$LIBS -l$lib"; break])
428 AC_CACHE_CHECK([for 3-argument setpriority function],
429 [utils_cv_func_setpriority],
432 [[#include <sys/time.h>
433 #include <sys/resource.h>
435 [[setpriority (0, 0, 0);]])],
436 [utils_cv_func_setpriority=yes],
437 [utils_cv_func_setpriority=no])])
438 if test $utils_cv_func_setpriority = no; then
439 AC_CHECK_FUNCS([nice])
441 case $utils_cv_func_setpriority,$ac_cv_func_nice in
443 gl_ADD_PROG([optional_bin_progs], [nice])
446 if test "$cross_compiling" = yes || test -c /dev/stdin <.; then
447 AC_DEFINE([DEV_FD_MIGHT_BE_CHR], [1],
448 [Define to 1 if /dev/std{in,out,err} and /dev/fd/N, if they exist, might be
449 character-special devices whose minor device number is the file
450 descriptor number, such as on Solaris. Leave undefined if they are
451 definitely the actual files. This determination should be done after any
452 symbolic links are followed.])
455 AC_DEFUN([coreutils_DUMMY_1],
457 AC_REQUIRE([gl_READUTMP])
458 if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
459 gl_ADD_PROG([optional_bin_progs], [who])
460 gl_ADD_PROG([optional_bin_progs], [users])
461 gl_ADD_PROG([optional_bin_progs], [pinky])
466 AC_SYS_POSIX_TERMIOS()
467 gl_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL
469 if test $ac_cv_sys_posix_termios = yes; then
470 gl_ADD_PROG([optional_bin_progs], [stty])
472 AC_MSG_CHECKING([whether termios.h needs _XOPEN_SOURCE])
473 AC_CACHE_VAL([su_cv_sys_termios_needs_xopen_source],
474 [AC_EGREP_CPP([yes], [#include <termios.h>
477 #endif], su_cv_sys_termios_needs_xopen_source=no,
478 AC_EGREP_CPP([yes], [#define _XOPEN_SOURCE
482 #endif], su_cv_sys_termios_needs_xopen_source=yes,
483 su_cv_sys_termios_needs_xopen_source=no))])
484 AC_MSG_RESULT([$su_cv_sys_termios_needs_xopen_source])
485 test $su_cv_sys_termios_needs_xopen_source = yes &&
486 AC_DEFINE([TERMIOS_NEEDS_XOPEN_SOURCE], [1], [FIXME])
488 AC_MSG_CHECKING([c_line in struct termios])
489 AC_CACHE_VAL([su_cv_sys_c_line_in_termios],
490 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if TERMIOS_NEEDS_XOPEN_SOURCE
491 #define _XOPEN_SOURCE
493 #include <sys/types.h>
496 int s = sizeof t.c_line;]])],
497 [su_cv_sys_c_line_in_termios=yes],
498 [su_cv_sys_c_line_in_termios=no])])
499 AC_MSG_RESULT([$su_cv_sys_c_line_in_termios])
500 test $su_cv_sys_c_line_in_termios = yes \
501 && AC_DEFINE([HAVE_C_LINE], [1], [FIXME])
504 # FIXME: note that this macro appears above, too.
505 # I'm leaving it here for now. This whole thing needs to be modernized...
508 gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H
510 if test $gl_cv_sys_tiocgwinsz_needs_termios_h = no && \
511 test $gl_cv_sys_tiocgwinsz_needs_sys_ioctl_h = no; then
512 AC_MSG_CHECKING([TIOCGWINSZ in sys/pty.h])
513 AC_CACHE_VAL([su_cv_sys_tiocgwinsz_in_sys_pty_h],
514 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
515 #ifdef WINSIZE_IN_PTEM
516 # include <sys/stream.h>
517 # include <sys/ptem.h>
519 #include <sys/ioctl.h>
521 #include <sys/pty.h>]], [[int x = TIOCGWINSZ;]])],
522 [su_cv_sys_tiocgwinsz_in_sys_pty_h=yes],
523 [su_cv_sys_tiocgwinsz_in_sys_pty_h=no])])
524 AC_MSG_RESULT([$su_cv_sys_tiocgwinsz_in_sys_pty_h])
526 test $su_cv_sys_tiocgwinsz_in_sys_pty_h = yes \
527 && AC_DEFINE([GWINSZ_IN_SYS_PTY], [1],
528 [Define if your system defines TIOCGWINSZ in sys/pty.h.])
531 # Build df only if there's a point to it.
532 if test $gl_cv_list_mounted_fs = yes && test $gl_cv_fs_space = yes; then
533 gl_ADD_PROG([optional_bin_progs], [df])
536 # Build stdbuf only if supported
537 ac_save_CFLAGS=$CFLAGS
538 ac_save_LDFLAGS=$LDFLAGS
539 cu_save_c_werror_flag=$ac_c_werror_flag
541 # Detect warnings about ignored "constructor" attributes.
542 gl_WARN_ADD([-Werror], [CFLAGS])
543 gl_WARN_ADD([-errwarn], [CFLAGS])
544 # Put this message here, after gl_WARN_ADD's chatter.
545 AC_MSG_CHECKING([whether this system supports stdbuf])
546 CFLAGS="-fPIC $CFLAGS"
547 LDFLAGS="-shared $LDFLAGS"
548 AC_CACHE_VAL([utils_cv_stdbuf_supported],[
549 utils_cv_stdbuf_supported=no
550 # Note we only LINK here rather than RUN to support cross compilation
553 static int stdbuf = 0;
555 void __attribute__ ((constructor))
563 [utils_cv_stdbuf_supported=yes])])
564 AC_MSG_RESULT([$utils_cv_stdbuf_supported])
565 if test "$utils_cv_stdbuf_supported" = "yes" && test -z "$EXEEXT"; then
566 gl_ADD_PROG([optional_bin_progs], [stdbuf])
568 CFLAGS=$ac_save_CFLAGS
569 LDFLAGS=$ac_save_LDFLAGS
570 ac_c_werror_flag=$cu_save_c_werror_flag
572 # Test compiler support for half precision floating point types (for od)
573 AC_MSG_CHECKING([IEEE 16 bit floating point])
574 AC_CACHE_VAL([utils_cv_ieee_16_bit_supported],[
580 volatile _Float16 hf = 1;
581 float f = hf; /* Ensure compiler can promote to float. */
586 utils_cv_ieee_16_bit_supported=yes
588 utils_cv_ieee_16_bit_supported=no
590 utils_cv_ieee_16_bit_supported=no
592 AC_MSG_RESULT([$utils_cv_ieee_16_bit_supported])
593 if test $utils_cv_ieee_16_bit_supported = yes; then
594 AC_DEFINE([FLOAT16_SUPPORTED], [1], [IEEE 16 bit float supported])
597 AC_MSG_CHECKING([Brain 16 bit floating point])
598 AC_CACHE_VAL([utils_cv_brain_16_bit_supported],[
604 volatile __bf16 hf = 1;
605 float f = hf; /* Ensure compiler can promote to float. */
610 utils_cv_brain_16_bit_supported=yes
612 utils_cv_brain_16_bit_supported=no
614 utils_cv_brain_16_bit_supported=no
616 AC_MSG_RESULT([$utils_cv_brain_16_bit_supported])
617 if test $utils_cv_brain_16_bit_supported = yes; then
618 AC_DEFINE([BF16_SUPPORTED], [1], [Brain 16 bit float supported])
621 ac_save_CFLAGS=$CFLAGS
622 CFLAGS="-mavx -mpclmul $CFLAGS"
623 AC_MSG_CHECKING([if pclmul intrinsic exists])
624 AC_CACHE_VAL([utils_cv_pclmul_intrinsic_exists],[
627 #include <x86intrin.h>
633 a = _mm_clmulepi64_si128 (a, b, 0x00);
634 a = _mm_shuffle_epi8 (a, b);
635 return __builtin_cpu_supports ("pclmul");
639 utils_cv_pclmul_intrinsic_exists=yes
641 utils_cv_pclmul_intrinsic_exists=no
643 AC_MSG_RESULT([$utils_cv_pclmul_intrinsic_exists])
644 if test $utils_cv_pclmul_intrinsic_exists = yes; then
645 AC_DEFINE([USE_PCLMUL_CRC32], [1],
646 [CRC32 calculation by pclmul hardware instruction enabled])
648 AM_CONDITIONAL([USE_PCLMUL_CRC32],
649 [test $utils_cv_pclmul_intrinsic_exists = yes])
650 CFLAGS=$ac_save_CFLAGS
652 CFLAGS="-mavx2 $CFLAGS"
653 AC_MSG_CHECKING([for avx2 intrinsics])
654 AC_CACHE_VAL([utils_cv_avx2_intrinsic_exists],[
657 #include <x86intrin.h>
662 __m256i matches = _mm256_setzero_si256 ();
663 int mask = _mm256_movemask_epi8 (matches);
664 int lines = __builtin_popcount (mask);
665 return __builtin_cpu_supports ("avx2");
669 utils_cv_avx2_intrinsic_exists=yes
671 utils_cv_avx2_intrinsic_exists=no
673 AC_MSG_RESULT([$utils_cv_avx2_intrinsic_exists])
674 if test $utils_cv_avx2_intrinsic_exists = yes; then
675 AC_DEFINE([USE_AVX2_WC_LINECOUNT], [1], [Counting lines with AVX2 enabled])
677 AM_CONDITIONAL([USE_AVX2_WC_LINECOUNT],
678 [test $utils_cv_avx2_intrinsic_exists = yes])
680 CFLAGS=$ac_save_CFLAGS
682 ############################################################################
684 dnl Autogenerated by the 'gen-lists-of-programs.sh' auxiliary script.
685 dnl Issue proper calls to the macros gl_INCLUDE_EXCLUDE_PROG and
686 dnl gl_ADD_PROG (updating $optional_bin_progs), and generate the list
687 dnl of coreutils programs to be built only upon explicit user request,
688 dnl saving that list in the $no_install_progs_default shell variable.
689 m4_include([m4/cu-progs.m4])
691 # Now that we know which programs will actually be built, determine
692 # which optional helper progs should be compiled.
693 # Note it adding to pkglibexec_PROGRAMS, $(transform) in src/local.mk
694 # may need to be updated accordingly.
695 case " $optional_bin_progs " in
696 *' stdbuf '*) pkglibexec_PROGRAMS='src/libstdbuf.so';;
697 *) pkglibexec_PROGRAMS='';;
701 for p in $optional_bin_progs; do
702 # Change "ginstall.1" to "install.1".
703 test $p = ginstall && p=install
704 # Ignore the "[" program, since writing a portable make rule to
705 # generate its manpage is not practical.
706 dnl Use the autoconf-provided quadrigraph to represent "[",
707 dnl otherwise we will incur in dreadful quoting issues.
708 test x$p = x'@<:@' && continue
712 # Not installed by "make install", but must be built when creating
713 # a distribution tarball.
714 EXTRA_MANS=`for p in $no_install_progs_default $gl_no_install_prog; do
718 # Replace all the programs by the single binary and symlinks if specified.
722 single_binary_install_type=
723 if test "$gl_single_binary" != no; then
724 man1_MANS="$man1_MANS man/coreutils.1"
725 # Convert the list to a space separated list
726 gl_single_binary_exceptions=`echo $gl_single_binary_exceptions | tr ',' ' '`
728 single_binary_progs=`echo $optional_bin_progs`
729 optional_bin_progs="coreutils"
730 for prog in $gl_single_binary_exceptions; do
731 # Fail if requested to exclude a program than was not part of coreutils.
732 case " $single_binary_progs " in
734 gl_REMOVE_PROG([single_binary_progs], [$prog]) ;
735 gl_ADD_PROG([optional_bin_progs], [$prog]) ;;
736 *) AC_MSG_ERROR(['$prog' is not being compiled.]) ;;
740 # single_binary_libs holds the list of libs required by the selected
741 # programs, such as for example -lrt.
743 for p in $single_binary_progs; do
745 test x"$p" = x'@<:@' && p='_'
746 printf '$(src_libsinglebin_%s_a_ldadd) ' "$p"
748 # single_binary_deps holds the list of libsinglebin_*.a files that have the
749 # compiled code of each selected program in a "library" format.
751 for p in $single_binary_progs; do
753 test x"$p" = x'@<:@' && p='_'
754 printf 'src/libsinglebin_%s.a ' "$p"
756 single_binary_install_type="$gl_single_binary"
758 AC_SUBST([single_binary_progs], [$single_binary_progs])
759 AC_SUBST([single_binary_libs], [$single_binary_libs])
760 AC_SUBST([single_binary_deps], [$single_binary_deps])
761 AC_SUBST([single_binary_install_type], [$single_binary_install_type])
764 # The programs built and installed by "make && make install".
765 # Since this is AC_SUBST'd, Automake won't be able to perform rewrite
766 # with $(EXEEXT) appending on it, so we have to do it ourselves -- in
767 # this case, only for $(bin_PROGRAMS).
769 for p in $optional_bin_progs; do echo src/"$p"'$(EXEEXT)'; done`
771 # Normalize whitespace.
772 man1_MANS=`echo $man1_MANS`
773 EXTRA_MANS=`echo $EXTRA_MANS`
774 bin_PROGRAMS=`echo $bin_PROGRAMS`
775 pkglibexec_PROGS=`echo $pkglibexec_PROGRAMS`
777 AC_SUBST([bin_PROGRAMS]) AM_SUBST_NOTMAKE([bin_PROGRAMS])
778 AC_SUBST([pkglibexec_PROGRAMS]) AM_SUBST_NOTMAKE([pkglibexec_PROGRAMS])
779 AC_SUBST([man1_MANS]) AM_SUBST_NOTMAKE([man1_MANS])
780 AC_SUBST([EXTRA_MANS]) AM_SUBST_NOTMAKE([EXTRA_MANS])
782 AC_SUBST([built_programs], [$optional_bin_progs])
784 AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes])
786 ############################################################################
788 # As long as "grep 'PRI[diouxX]' po/*.pot" reports matches in
789 # translatable strings, we must use need-formatstring-macros here.
790 AM_GNU_GETTEXT([external], [need-formatstring-macros])
791 AM_GNU_GETTEXT_VERSION([0.19.2])
793 # For a test of uniq: it uses the $LOCALE_FR envvar.
799 gnulib-tests/Makefile