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 $LIB_CRYPTO"
367 #include <openssl/sha.h>
369 [[return !(dlopen ("libcrypto.so", RTLD_LAZY | RTLD_GLOBAL)
370 && SHA512 (0, 0, 0));]])],
371 [# readelf works with cross-builds; ldd works on more platforms.
372 AS_CASE([`(readelf -d conftest$EXEEXT || ldd conftest$EXEEXT
375 [utils_cv_dlopen_libcrypto=yes])])
377 AS_CASE([$utils_cv_dlopen_libcrypto],
379 [AC_DEFINE([DLOPEN_LIBCRYPTO], [1],
380 [Define to 1 if dlopen exists and libcrypto is
381 linked dynamically.])])])
384 AC_CHECK_FUNCS([fclonefileat])
386 # Assume that if getattrat exists, it's compatible with Solaris 11.
387 AC_CHECK_FUNCS([getattrat])
388 if test $ac_cv_func_getattrat = yes; then
390 AC_SUBST([LIB_NVPAIR])
393 # glibc >= 2.28 and linux kernel >= 4.11
394 AC_CHECK_FUNCS([statx])
396 # SCO-ODT-3.0 is reported to need -los to link programs using initgroups
397 AC_CHECK_FUNCS([initgroups])
398 if test $ac_cv_func_initgroups = no; then
399 AC_CHECK_LIB([os], [initgroups])
402 AC_CHECK_FUNCS([syslog])
403 if test $ac_cv_func_syslog = no; then
404 # syslog is not in the default libraries. See if it's in some other.
405 for lib in bsd socket inet; do
406 AC_CHECK_LIB([$lib], [syslog], [AC_DEFINE([HAVE_SYSLOG], [1], [FIXME])
407 LIBS="$LIBS -l$lib"; break])
411 AC_CACHE_CHECK([for 3-argument setpriority function],
412 [utils_cv_func_setpriority],
415 [[#include <sys/time.h>
416 #include <sys/resource.h>
418 [[setpriority (0, 0, 0);]])],
419 [utils_cv_func_setpriority=yes],
420 [utils_cv_func_setpriority=no])])
421 if test $utils_cv_func_setpriority = no; then
422 AC_CHECK_FUNCS([nice])
424 case $utils_cv_func_setpriority,$ac_cv_func_nice in
426 gl_ADD_PROG([optional_bin_progs], [nice])
429 if test "$cross_compiling" = yes || test -c /dev/stdin <.; then
430 AC_DEFINE([DEV_FD_MIGHT_BE_CHR], [1],
431 [Define to 1 if /dev/std{in,out,err} and /dev/fd/N, if they exist, might be
432 character-special devices whose minor device number is the file
433 descriptor number, such as on Solaris. Leave undefined if they are
434 definitely the actual files. This determination should be done after any
435 symbolic links are followed.])
438 AC_DEFUN([coreutils_DUMMY_1],
440 AC_REQUIRE([gl_READUTMP])
441 if test $ac_cv_header_utmp_h = yes || test $ac_cv_header_utmpx_h = yes; then
442 gl_ADD_PROG([optional_bin_progs], [who])
443 gl_ADD_PROG([optional_bin_progs], [users])
444 gl_ADD_PROG([optional_bin_progs], [pinky])
449 AC_SYS_POSIX_TERMIOS()
450 gl_HEADER_TIOCGWINSZ_NEEDS_SYS_IOCTL
452 if test $ac_cv_sys_posix_termios = yes; then
453 gl_ADD_PROG([optional_bin_progs], [stty])
455 AC_MSG_CHECKING([whether termios.h needs _XOPEN_SOURCE])
456 AC_CACHE_VAL([su_cv_sys_termios_needs_xopen_source],
457 [AC_EGREP_CPP([yes], [#include <termios.h>
460 #endif], su_cv_sys_termios_needs_xopen_source=no,
461 AC_EGREP_CPP([yes], [#define _XOPEN_SOURCE
465 #endif], su_cv_sys_termios_needs_xopen_source=yes,
466 su_cv_sys_termios_needs_xopen_source=no))])
467 AC_MSG_RESULT([$su_cv_sys_termios_needs_xopen_source])
468 test $su_cv_sys_termios_needs_xopen_source = yes &&
469 AC_DEFINE([TERMIOS_NEEDS_XOPEN_SOURCE], [1], [FIXME])
471 AC_MSG_CHECKING([c_line in struct termios])
472 AC_CACHE_VAL([su_cv_sys_c_line_in_termios],
473 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#if TERMIOS_NEEDS_XOPEN_SOURCE
474 #define _XOPEN_SOURCE
476 #include <sys/types.h>
479 int s = sizeof t.c_line;]])],
480 [su_cv_sys_c_line_in_termios=yes],
481 [su_cv_sys_c_line_in_termios=no])])
482 AC_MSG_RESULT([$su_cv_sys_c_line_in_termios])
483 test $su_cv_sys_c_line_in_termios = yes \
484 && AC_DEFINE([HAVE_C_LINE], [1], [FIXME])
487 # FIXME: note that this macro appears above, too.
488 # I'm leaving it here for now. This whole thing needs to be modernized...
491 gl_HEADER_TIOCGWINSZ_IN_TERMIOS_H
493 if test $gl_cv_sys_tiocgwinsz_needs_termios_h = no && \
494 test $gl_cv_sys_tiocgwinsz_needs_sys_ioctl_h = no; then
495 AC_MSG_CHECKING([TIOCGWINSZ in sys/pty.h])
496 AC_CACHE_VAL([su_cv_sys_tiocgwinsz_in_sys_pty_h],
497 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
498 #ifdef WINSIZE_IN_PTEM
499 # include <sys/stream.h>
500 # include <sys/ptem.h>
502 #include <sys/ioctl.h>
504 #include <sys/pty.h>]], [[int x = TIOCGWINSZ;]])],
505 [su_cv_sys_tiocgwinsz_in_sys_pty_h=yes],
506 [su_cv_sys_tiocgwinsz_in_sys_pty_h=no])])
507 AC_MSG_RESULT([$su_cv_sys_tiocgwinsz_in_sys_pty_h])
509 test $su_cv_sys_tiocgwinsz_in_sys_pty_h = yes \
510 && AC_DEFINE([GWINSZ_IN_SYS_PTY], [1],
511 [Define if your system defines TIOCGWINSZ in sys/pty.h.])
514 # Build df only if there's a point to it.
515 if test $gl_cv_list_mounted_fs = yes && test $gl_cv_fs_space = yes; then
516 gl_ADD_PROG([optional_bin_progs], [df])
519 # Build stdbuf only if supported
520 ac_save_CFLAGS=$CFLAGS
521 ac_save_LDFLAGS=$LDFLAGS
522 cu_save_c_werror_flag=$ac_c_werror_flag
524 # Detect warnings about ignored "constructor" attributes.
525 gl_WARN_ADD([-Werror], [CFLAGS])
526 gl_WARN_ADD([-errwarn], [CFLAGS])
527 # Put this message here, after gl_WARN_ADD's chatter.
528 AC_MSG_CHECKING([whether this system supports stdbuf])
529 CFLAGS="-fPIC $CFLAGS"
530 LDFLAGS="-shared $LDFLAGS"
532 # Note we only LINK here rather than RUN to support cross compilation
535 static int stdbuf = 0;
537 void __attribute__ ((constructor))
545 [stdbuf_supported=yes])
546 AC_MSG_RESULT([$stdbuf_supported])
547 if test "$stdbuf_supported" = "yes" && test -z "$EXEEXT"; then
548 gl_ADD_PROG([optional_bin_progs], [stdbuf])
550 CFLAGS=$ac_save_CFLAGS
551 LDFLAGS=$ac_save_LDFLAGS
552 ac_c_werror_flag=$cu_save_c_werror_flag
554 # Test compiler support for half precision floating point types (for od)
555 AC_MSG_CHECKING([IEEE 16 bit floating point])
562 float f = hf; /* Ensure compiler can promote to float. */
566 ieee_16_bit_supported=yes
568 ieee_16_bit_supported=no
570 AC_MSG_RESULT([$ieee_16_bit_supported])
571 if test $ieee_16_bit_supported = yes; then
572 AC_DEFINE([FLOAT16_SUPPORTED], [1], [IEEE 16 bit float supported])
575 AC_MSG_CHECKING([Brain 16 bit floating point])
582 float f = hf; /* Ensure compiler can promote to float. */
586 brain_16_bit_supported=yes
588 brain_16_bit_supported=no
590 AC_MSG_RESULT([$brain_16_bit_supported])
591 if test $brain_16_bit_supported = yes; then
592 AC_DEFINE([BF16_SUPPORTED], [1], [Brain 16 bit float supported])
595 ac_save_CFLAGS=$CFLAGS
596 CFLAGS="-mavx -mpclmul $CFLAGS"
597 AC_MSG_CHECKING([if pclmul intrinsic exists])
600 #include <x86intrin.h>
606 a = _mm_clmulepi64_si128 (a, b, 0x00);
607 a = _mm_shuffle_epi8 (a, b);
608 return __builtin_cpu_supports ("pclmul");
612 pclmul_intrinsic_exists=yes
614 pclmul_intrinsic_exists=no
616 AC_MSG_RESULT([$pclmul_intrinsic_exists])
617 if test $pclmul_intrinsic_exists = yes; then
618 AC_DEFINE([USE_PCLMUL_CRC32], [1],
619 [CRC32 calculation by pclmul hardware instruction enabled])
621 AM_CONDITIONAL([USE_PCLMUL_CRC32],
622 [test $pclmul_intrinsic_exists = yes])
623 CFLAGS=$ac_save_CFLAGS
625 CFLAGS="-mavx2 $CFLAGS"
626 AC_MSG_CHECKING([for avx2 intrinsics])
629 #include <x86intrin.h>
635 a = _mm256_sad_epu8 (a, b);
636 return __builtin_cpu_supports ("avx2");
640 avx2_intrinsic_exists=yes
642 avx2_intrinsic_exists=no
644 AC_MSG_RESULT([$avx2_intrinsic_exists])
645 if test $avx2_intrinsic_exists = yes; then
646 AC_DEFINE([USE_AVX2_WC_LINECOUNT], [1], [Counting lines with AVX2 enabled])
648 AM_CONDITIONAL([USE_AVX2_WC_LINECOUNT],
649 [test $avx2_intrinsic_exists = yes])
651 CFLAGS=$ac_save_CFLAGS
653 ############################################################################
655 dnl Autogenerated by the 'gen-lists-of-programs.sh' auxiliary script.
656 dnl Issue proper calls to the macros gl_INCLUDE_EXCLUDE_PROG and
657 dnl gl_ADD_PROG (updating $optional_bin_progs), and generate the list
658 dnl of coreutils programs to be built only upon explicit user request,
659 dnl saving that list in the $no_install_progs_default shell variable.
660 m4_include([m4/cu-progs.m4])
662 # Now that we know which programs will actually be built, determine
663 # which optional helper progs should be compiled.
664 # Note it adding to pkglibexec_PROGRAMS, $(transform) in src/local.mk
665 # may need to be updated accordingly.
666 case " $optional_bin_progs " in
667 *' stdbuf '*) pkglibexec_PROGRAMS='src/libstdbuf.so';;
668 *) pkglibexec_PROGRAMS='';;
672 for p in $optional_bin_progs; do
673 # Change "ginstall.1" to "install.1".
674 test $p = ginstall && p=install
675 # Ignore the "[" program, since writing a portable make rule to
676 # generate its manpage is not practical.
677 dnl Use the autoconf-provided quadrigraph to represent "[",
678 dnl otherwise we will incur in dreadful quoting issues.
679 test x$p = x'@<:@' && continue
683 # Not installed by "make install", but must be built when creating
684 # a distribution tarball.
685 EXTRA_MANS=`for p in $no_install_progs_default $gl_no_install_prog; do
689 # Replace all the programs by the single binary and symlinks if specified.
693 single_binary_install_type=
694 if test "$gl_single_binary" != no; then
695 man1_MANS="$man1_MANS man/coreutils.1"
696 # Convert the list to a space separated list
697 gl_single_binary_exceptions=`echo $gl_single_binary_exceptions | tr ',' ' '`
699 single_binary_progs=`echo $optional_bin_progs`
700 optional_bin_progs="coreutils"
701 for prog in $gl_single_binary_exceptions; do
702 # Fail if requested to exclude a program than was not part of coreutils.
703 case " $single_binary_progs " in
705 gl_REMOVE_PROG([single_binary_progs], [$prog]) ;
706 gl_ADD_PROG([optional_bin_progs], [$prog]) ;;
707 *) AC_MSG_ERROR(['$prog' is not being compiled.]) ;;
711 # single_binary_libs holds the list of libs required by the selected
712 # programs, such as for example -lrt.
714 for p in $single_binary_progs; do
716 test x"$p" = x'@<:@' && p='_'
717 printf '$(src_libsinglebin_%s_a_ldadd) ' "$p"
719 # single_binary_deps holds the list of libsinglebin_*.a files that have the
720 # compiled code of each selected program in a "library" format.
722 for p in $single_binary_progs; do
724 test x"$p" = x'@<:@' && p='_'
725 printf 'src/libsinglebin_%s.a ' "$p"
727 single_binary_install_type="$gl_single_binary"
729 AC_SUBST([single_binary_progs], [$single_binary_progs])
730 AC_SUBST([single_binary_libs], [$single_binary_libs])
731 AC_SUBST([single_binary_deps], [$single_binary_deps])
732 AC_SUBST([single_binary_install_type], [$single_binary_install_type])
735 # The programs built and installed by "make && make install".
736 # Since this is AC_SUBST'd, Automake won't be able to perform rewrite
737 # with $(EXEEXT) appending on it, so we have to do it ourselves -- in
738 # this case, only for $(bin_PROGRAMS).
740 for p in $optional_bin_progs; do echo src/"$p"'$(EXEEXT)'; done`
742 # Normalize whitespace.
743 man1_MANS=`echo $man1_MANS`
744 EXTRA_MANS=`echo $EXTRA_MANS`
745 bin_PROGRAMS=`echo $bin_PROGRAMS`
746 pkglibexec_PROGS=`echo $pkglibexec_PROGRAMS`
748 AC_SUBST([bin_PROGRAMS]) AM_SUBST_NOTMAKE([bin_PROGRAMS])
749 AC_SUBST([pkglibexec_PROGRAMS]) AM_SUBST_NOTMAKE([pkglibexec_PROGRAMS])
750 AC_SUBST([man1_MANS]) AM_SUBST_NOTMAKE([man1_MANS])
751 AC_SUBST([EXTRA_MANS]) AM_SUBST_NOTMAKE([EXTRA_MANS])
753 AC_SUBST([built_programs], [$optional_bin_progs])
755 AM_CONDITIONAL([CROSS_COMPILING], [test "$cross_compiling" = yes])
757 ############################################################################
759 # As long as "grep 'PRI[diouxX]' po/*.pot" reports matches in
760 # translatable strings, we must use need-formatstring-macros here.
761 AM_GNU_GETTEXT([external], [need-formatstring-macros])
762 AM_GNU_GETTEXT_VERSION([0.19.2])
764 # For a test of uniq: it uses the $LOCALE_FR envvar.
770 gnulib-tests/Makefile