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 -Wsystem-headers" # Don't let system headers trigger warnings
202 nw="$nw -Wsign-conversion" # Too many warnings for now
203 nw="$nw -Wtraditional-conversion" # Too many warnings for now
204 nw="$nw -Wunreachable-code" # Too many warnings for now
205 nw="$nw -Wpadded" # Our structs are not padded
206 nw="$nw -Wredundant-decls" # openat.h declares e.g., mkdirat
207 nw="$nw -Wformat-nonliteral" # who.c and pinky.c strftime uses
208 nw="$nw -Wnested-externs" # use of XARGMATCH/verify_function__
209 nw="$nw -Wswitch-enum" # Too many warnings for now
210 nw="$nw -Wswitch-default" # Too many warnings for now
211 nw="$nw -Wstack-protector" # not worth working around
212 nw="$nw -Wformat-overflow=2" # False alarms due to GCC bug 110333
213 nw="$nw -Wformat-truncation=2" # False alarm in ls.c, probably related
214 # things I might fix soon:
215 nw="$nw -Wfloat-equal" # sort.c, seq.c
216 nw="$nw -Wmissing-format-attribute" # copy.c
217 nw="$nw -Wunsafe-loop-optimizations" # a few src/*.c
218 nw="$nw -Winline" # system.h's readdir_ignoring_dot_and_dotdot
219 nw="$nw -Wvector-operation-performance" # warns about randperm.c
221 # Suppress noreturn warnings with single binaries; otherwise
222 # GCC complains about the renamed 'main' not being declared noreturn
223 # because 'main_exit' calls 'exit' when linting.
224 if test "$gl_single_binary" != no; then
225 nw="$nw -Wsuggest-attribute=noreturn"
228 # Using -Wstrict-overflow is a pain, but the alternative is worse.
229 # For an example, see the code that provoked this report:
230 # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=33498
231 # Code like that still infloops with gcc-4.6.0 and -O2. Scary indeed.
233 gl_MANYWARN_ALL_GCC([ws])
234 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
238 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
239 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
240 gl_WARN_ADD([-Wno-format-nonliteral])
242 gl_WARN_ADD([-fdiagnostics-show-option])
243 gl_WARN_ADD([-funit-at-a-time])
245 AC_SUBST([WARN_CFLAGS])
247 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
248 AH_VERBATIM([FORTIFY_SOURCE],
249 [/* Enable compile-time and run-time bounds-checking, and some warnings,
250 without upsetting glibc 2.15+. */
251 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
252 # define _FORTIFY_SOURCE 2
255 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
257 # We use a slightly smaller set of warning options for lib/.
258 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
260 nw="$nw -Wduplicated-branches" # Too many false alarms
261 nw="$nw -Wformat-truncation=2"
262 nw="$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="$nw -Wsuggest-attribute=const"
287 nw="$nw -Wsuggest-attribute=format"
288 nw="$nw -Wsuggest-attribute=pure"
289 gl_MANYWARN_COMPLEMENT([GNULIB_TEST_WARN_CFLAGS],
290 [$GNULIB_WARN_CFLAGS], [$nw])
291 AC_SUBST([GNULIB_TEST_WARN_CFLAGS])
297 AC_CHECK_FUNCS([chroot],
298 gl_ADD_PROG([optional_bin_progs], [chroot]))
299 AC_CHECK_FUNCS([gethostid],
300 gl_ADD_PROG([optional_bin_progs], [hostid]))
301 AC_CHECK_FUNCS([sigsuspend],
302 gl_ADD_PROG([optional_bin_progs], [timeout]))
306 AC_MSG_CHECKING([whether localtime caches TZ])
307 AC_CACHE_VAL([utils_cv_localtime_cache],
308 [if test x$ac_cv_func_tzset = xyes; then
309 AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <time.h>
313 extern char **environ;
317 for (to = from = environ; (*to = *from); from++)
318 if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
324 time_t now = time ((time_t *) 0);
325 int hour_GMT0, hour_unset;
326 if (putenv ("TZ=GMT0") != 0)
328 hour_GMT0 = localtime (&now)->tm_hour;
330 hour_unset = localtime (&now)->tm_hour;
331 if (putenv ("TZ=PST8") != 0)
333 if (localtime (&now)->tm_hour == hour_GMT0)
336 if (localtime (&now)->tm_hour != hour_unset)
340 [utils_cv_localtime_cache=no],
341 [utils_cv_localtime_cache=yes],
342 [# If we have tzset, assume the worst when cross-compiling.
343 utils_cv_localtime_cache=yes])
345 # If we lack tzset, report that localtime does not cache TZ,
346 # since we can't invalidate the cache if we don't have tzset.
347 utils_cv_localtime_cache=no
349 AC_MSG_RESULT([$utils_cv_localtime_cache])
350 if test $utils_cv_localtime_cache = yes; then
351 AC_DEFINE([LOCALTIME_CACHE], [1], [FIXME])
354 # Should 'sort' link libcrypto dynamically?
355 AS_CASE([$LIB_CRYPTO],
357 [# Check for dlopen and libcrypto dynamic linking in one program,
358 # as there's little point to checking them separately.
359 AC_CACHE_CHECK([for dlopen and whether libcrypto is linked dynamically],
360 [utils_cv_dlopen_libcrypto],
361 [utils_cv_dlopen_libcrypto=no
363 LIBS="$LIBS $LIB_CRYPTO"
367 #include <openssl/sha.h>
368 /* Use SHA512 rather than MD5 here to avoid deprecation warnings.
369 So need to check HAVE_OPENSSL_MD5.. with DLOPEN_LIBCRYPTO. */
371 [[return !(dlopen ("libcrypto.so", RTLD_LAZY | RTLD_GLOBAL)
372 && SHA512 (0, 0, 0));]])],
373 [# readelf works with cross-builds; ldd works on more platforms.
374 LIBCRYPTO_SONAME="`(readelf -d conftest$EXEEXT || ldd conftest$EXEEXT
376 sed -n 's/.*\(libcrypto.so.[[.0-9]]*\).*/\1/p'`"
377 AS_CASE([$LIBCRYPTO_SONAME],
379 [utils_cv_dlopen_libcrypto=yes])])
381 AS_CASE([$utils_cv_dlopen_libcrypto],
383 [AC_DEFINE([DLOPEN_LIBCRYPTO], [1],
384 [Define to 1 if dlopen exists and libcrypto is
385 linked dynamically.])
386 AC_DEFINE_UNQUOTED([LIBCRYPTO_SONAME], ["$LIBCRYPTO_SONAME"],
387 [versioned libcrypto])
391 AC_CHECK_FUNCS([fclonefileat])
393 # Assume that if getattrat exists, it's compatible with Solaris 11.
394 AC_CHECK_FUNCS([getattrat])
395 if test $ac_cv_func_getattrat = yes; then
397 AC_SUBST([LIB_NVPAIR])
400 # glibc >= 2.28 and linux kernel >= 4.11
401 AC_CHECK_FUNCS([statx])
403 # SCO-ODT-3.0 is reported to need -los to link programs using initgroups
404 AC_CHECK_FUNCS([initgroups])
405 if test $ac_cv_func_initgroups = no; then
406 AC_CHECK_LIB([os], [initgroups])
409 AC_CHECK_FUNCS([syslog])
410 if test $ac_cv_func_syslog = no; then
411 # syslog is not in the default libraries. See if it's in some other.
412 for lib in bsd socket inet; do
413 AC_CHECK_LIB([$lib], [syslog], [AC_DEFINE([HAVE_SYSLOG], [1], [FIXME])
414 LIBS="$LIBS -l$lib"; break])
418 AC_CACHE_CHECK([for 3-argument setpriority function],
419 [utils_cv_func_setpriority],
422 [[#include <sys/time.h>
423 #include <sys/resource.h>
425 [[setpriority (0, 0, 0);]])],
426 [utils_cv_func_setpriority=yes],
427 [utils_cv_func_setpriority=no])])
428 if test $utils_cv_func_setpriority = no; then
429 AC_CHECK_FUNCS([nice])
431 case $utils_cv_func_setpriority,$ac_cv_func_nice in
433 gl_ADD_PROG([optional_bin_progs], [nice])
436 if test "$cross_compiling" = yes || test -c /dev/stdin <.; then
437 AC_DEFINE([DEV_FD_MIGHT_BE_CHR], [1],
438 [Define to 1 if /dev/std{in,out,err} and /dev/fd/N, if they exist, might be
439 character-special devices whose minor device number is the file
440 descriptor number, such as on Solaris. Leave undefined if they are
441 definitely the actual files. This determination should be done after any
442 symbolic links are followed.])
445 AC_DEFUN([coreutils_DUMMY_1],
447 AC_REQUIRE([gl_READUTMP])
448 if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
449 gl_ADD_PROG([optional_bin_progs], [who])
450 gl_ADD_PROG([optional_bin_progs], [users])
451 gl_ADD_PROG([optional_bin_progs], [pinky])
456 AC_SYS_POSIX_TERMIOS()
457 gl_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL
459 if test $ac_cv_sys_posix_termios = yes; then
460 gl_ADD_PROG([optional_bin_progs], [stty])
462 AC_MSG_CHECKING([whether termios.h needs _XOPEN_SOURCE])
463 AC_CACHE_VAL([su_cv_sys_termios_needs_xopen_source],
464 [AC_EGREP_CPP([yes], [#include <termios.h>
467 #endif], su_cv_sys_termios_needs_xopen_source=no,
468 AC_EGREP_CPP([yes], [#define _XOPEN_SOURCE
472 #endif], su_cv_sys_termios_needs_xopen_source=yes,
473 su_cv_sys_termios_needs_xopen_source=no))])
474 AC_MSG_RESULT([$su_cv_sys_termios_needs_xopen_source])
475 test $su_cv_sys_termios_needs_xopen_source = yes &&
476 AC_DEFINE([TERMIOS_NEEDS_XOPEN_SOURCE], [1], [FIXME])
478 AC_MSG_CHECKING([c_line in struct termios])
479 AC_CACHE_VAL([su_cv_sys_c_line_in_termios],
480 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if TERMIOS_NEEDS_XOPEN_SOURCE
481 #define _XOPEN_SOURCE
483 #include <sys/types.h>
486 int s = sizeof t.c_line;]])],
487 [su_cv_sys_c_line_in_termios=yes],
488 [su_cv_sys_c_line_in_termios=no])])
489 AC_MSG_RESULT([$su_cv_sys_c_line_in_termios])
490 test $su_cv_sys_c_line_in_termios = yes \
491 && AC_DEFINE([HAVE_C_LINE], [1], [FIXME])
494 # FIXME: note that this macro appears above, too.
495 # I'm leaving it here for now. This whole thing needs to be modernized...
498 gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H
500 if test $gl_cv_sys_tiocgwinsz_needs_termios_h = no && \
501 test $gl_cv_sys_tiocgwinsz_needs_sys_ioctl_h = no; then
502 AC_MSG_CHECKING([TIOCGWINSZ in sys/pty.h])
503 AC_CACHE_VAL([su_cv_sys_tiocgwinsz_in_sys_pty_h],
504 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
505 #ifdef WINSIZE_IN_PTEM
506 # include <sys/stream.h>
507 # include <sys/ptem.h>
509 #include <sys/ioctl.h>
511 #include <sys/pty.h>]], [[int x = TIOCGWINSZ;]])],
512 [su_cv_sys_tiocgwinsz_in_sys_pty_h=yes],
513 [su_cv_sys_tiocgwinsz_in_sys_pty_h=no])])
514 AC_MSG_RESULT([$su_cv_sys_tiocgwinsz_in_sys_pty_h])
516 test $su_cv_sys_tiocgwinsz_in_sys_pty_h = yes \
517 && AC_DEFINE([GWINSZ_IN_SYS_PTY], [1],
518 [Define if your system defines TIOCGWINSZ in sys/pty.h.])
521 # Build df only if there's a point to it.
522 if test $gl_cv_list_mounted_fs = yes && test $gl_cv_fs_space = yes; then
523 gl_ADD_PROG([optional_bin_progs], [df])
526 # Build stdbuf only if supported
527 ac_save_CFLAGS=$CFLAGS
528 ac_save_LDFLAGS=$LDFLAGS
529 cu_save_c_werror_flag=$ac_c_werror_flag
531 # Detect warnings about ignored "constructor" attributes.
532 gl_WARN_ADD([-Werror], [CFLAGS])
533 gl_WARN_ADD([-errwarn], [CFLAGS])
534 # Put this message here, after gl_WARN_ADD's chatter.
535 AC_MSG_CHECKING([whether this system supports stdbuf])
536 CFLAGS="-fPIC $CFLAGS"
537 LDFLAGS="-shared $LDFLAGS"
539 # Note we only LINK here rather than RUN to support cross compilation
542 static int stdbuf = 0;
544 void __attribute__ ((constructor))
552 [stdbuf_supported=yes])
553 AC_MSG_RESULT([$stdbuf_supported])
554 if test "$stdbuf_supported" = "yes" && test -z "$EXEEXT"; then
555 gl_ADD_PROG([optional_bin_progs], [stdbuf])
557 CFLAGS=$ac_save_CFLAGS
558 LDFLAGS=$ac_save_LDFLAGS
559 ac_c_werror_flag=$cu_save_c_werror_flag
561 # Test compiler support for half precision floating point types (for od)
562 AC_MSG_CHECKING([IEEE 16 bit floating point])
569 float f = hf; /* Ensure compiler can promote to float. */
573 ieee_16_bit_supported=yes
575 ieee_16_bit_supported=no
577 AC_MSG_RESULT([$ieee_16_bit_supported])
578 if test $ieee_16_bit_supported = yes; then
579 AC_DEFINE([FLOAT16_SUPPORTED], [1], [IEEE 16 bit float supported])
582 AC_MSG_CHECKING([Brain 16 bit floating point])
589 float f = hf; /* Ensure compiler can promote to float. */
593 brain_16_bit_supported=yes
595 brain_16_bit_supported=no
597 AC_MSG_RESULT([$brain_16_bit_supported])
598 if test $brain_16_bit_supported = yes; then
599 AC_DEFINE([BF16_SUPPORTED], [1], [Brain 16 bit float supported])
602 ac_save_CFLAGS=$CFLAGS
603 CFLAGS="-mavx -mpclmul $CFLAGS"
604 AC_MSG_CHECKING([if pclmul intrinsic exists])
607 #include <x86intrin.h>
613 a = _mm_clmulepi64_si128 (a, b, 0x00);
614 a = _mm_shuffle_epi8 (a, b);
615 return __builtin_cpu_supports ("pclmul");
619 pclmul_intrinsic_exists=yes
621 pclmul_intrinsic_exists=no
623 AC_MSG_RESULT([$pclmul_intrinsic_exists])
624 if test $pclmul_intrinsic_exists = yes; then
625 AC_DEFINE([USE_PCLMUL_CRC32], [1],
626 [CRC32 calculation by pclmul hardware instruction enabled])
628 AM_CONDITIONAL([USE_PCLMUL_CRC32],
629 [test $pclmul_intrinsic_exists = yes])
630 CFLAGS=$ac_save_CFLAGS
632 CFLAGS="-mavx2 $CFLAGS"
633 AC_MSG_CHECKING([for avx2 intrinsics])
636 #include <x86intrin.h>
642 a = _mm256_sad_epu8 (a, b);
643 return __builtin_cpu_supports ("avx2");
647 avx2_intrinsic_exists=yes
649 avx2_intrinsic_exists=no
651 AC_MSG_RESULT([$avx2_intrinsic_exists])
652 if test $avx2_intrinsic_exists = yes; then
653 AC_DEFINE([USE_AVX2_WC_LINECOUNT], [1], [Counting lines with AVX2 enabled])
655 AM_CONDITIONAL([USE_AVX2_WC_LINECOUNT],
656 [test $avx2_intrinsic_exists = yes])
658 CFLAGS=$ac_save_CFLAGS
660 ############################################################################
662 dnl Autogenerated by the 'gen-lists-of-programs.sh' auxiliary script.
663 dnl Issue proper calls to the macros gl_INCLUDE_EXCLUDE_PROG and
664 dnl gl_ADD_PROG (updating $optional_bin_progs), and generate the list
665 dnl of coreutils programs to be built only upon explicit user request,
666 dnl saving that list in the $no_install_progs_default shell variable.
667 m4_include([m4/cu-progs.m4])
669 # Now that we know which programs will actually be built, determine
670 # which optional helper progs should be compiled.
671 # Note it adding to pkglibexec_PROGRAMS, $(transform) in src/local.mk
672 # may need to be updated accordingly.
673 case " $optional_bin_progs " in
674 *' stdbuf '*) pkglibexec_PROGRAMS='src/libstdbuf.so';;
675 *) pkglibexec_PROGRAMS='';;
679 for p in $optional_bin_progs; do
680 # Change "ginstall.1" to "install.1".
681 test $p = ginstall && p=install
682 # Ignore the "[" program, since writing a portable make rule to
683 # generate its manpage is not practical.
684 dnl Use the autoconf-provided quadrigraph to represent "[",
685 dnl otherwise we will incur in dreadful quoting issues.
686 test x$p = x'@<:@' && continue
690 # Not installed by "make install", but must be built when creating
691 # a distribution tarball.
692 EXTRA_MANS=`for p in $no_install_progs_default $gl_no_install_prog; do
696 # Replace all the programs by the single binary and symlinks if specified.
700 single_binary_install_type=
701 if test "$gl_single_binary" != no; then
702 man1_MANS="$man1_MANS man/coreutils.1"
703 # Convert the list to a space separated list
704 gl_single_binary_exceptions=`echo $gl_single_binary_exceptions | tr ',' ' '`
706 single_binary_progs=`echo $optional_bin_progs`
707 optional_bin_progs="coreutils"
708 for prog in $gl_single_binary_exceptions; do
709 # Fail if requested to exclude a program than was not part of coreutils.
710 case " $single_binary_progs " in
712 gl_REMOVE_PROG([single_binary_progs], [$prog]) ;
713 gl_ADD_PROG([optional_bin_progs], [$prog]) ;;
714 *) AC_MSG_ERROR(['$prog' is not being compiled.]) ;;
718 # single_binary_libs holds the list of libs required by the selected
719 # programs, such as for example -lrt.
721 for p in $single_binary_progs; do
723 test x"$p" = x'@<:@' && p='_'
724 printf '$(src_libsinglebin_%s_a_ldadd) ' "$p"
726 # single_binary_deps holds the list of libsinglebin_*.a files that have the
727 # compiled code of each selected program in a "library" format.
729 for p in $single_binary_progs; do
731 test x"$p" = x'@<:@' && p='_'
732 printf 'src/libsinglebin_%s.a ' "$p"
734 single_binary_install_type="$gl_single_binary"
736 AC_SUBST([single_binary_progs], [$single_binary_progs])
737 AC_SUBST([single_binary_libs], [$single_binary_libs])
738 AC_SUBST([single_binary_deps], [$single_binary_deps])
739 AC_SUBST([single_binary_install_type], [$single_binary_install_type])
742 # The programs built and installed by "make && make install".
743 # Since this is AC_SUBST'd, Automake won't be able to perform rewrite
744 # with $(EXEEXT) appending on it, so we have to do it ourselves -- in
745 # this case, only for $(bin_PROGRAMS).
747 for p in $optional_bin_progs; do echo src/"$p"'$(EXEEXT)'; done`
749 # Normalize whitespace.
750 man1_MANS=`echo $man1_MANS`
751 EXTRA_MANS=`echo $EXTRA_MANS`
752 bin_PROGRAMS=`echo $bin_PROGRAMS`
753 pkglibexec_PROGS=`echo $pkglibexec_PROGRAMS`
755 AC_SUBST([bin_PROGRAMS]) AM_SUBST_NOTMAKE([bin_PROGRAMS])
756 AC_SUBST([pkglibexec_PROGRAMS]) AM_SUBST_NOTMAKE([pkglibexec_PROGRAMS])
757 AC_SUBST([man1_MANS]) AM_SUBST_NOTMAKE([man1_MANS])
758 AC_SUBST([EXTRA_MANS]) AM_SUBST_NOTMAKE([EXTRA_MANS])
760 AC_SUBST([built_programs], [$optional_bin_progs])
762 AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes])
764 ############################################################################
766 # As long as "grep 'PRI[diouxX]' po/*.pot" reports matches in
767 # translatable strings, we must use need-formatstring-macros here.
768 AM_GNU_GETTEXT([external], [need-formatstring-macros])
769 AM_GNU_GETTEXT_VERSION([0.19.2])
771 # For a test of uniq: it uses the $LOCALE_FR envvar.
777 gnulib-tests/Makefile