1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621
|
# Autoconf M4 include file defining utility macros for complex Canadian
# cross builds.
dnl ####
dnl # _GCC_TOPLEV_NONCANONICAL_BUILD
dnl # $build_alias or canonical $build if blank.
dnl # Used when we would use $build_alias, but empty is not OK.
AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_BUILD],
[AC_REQUIRE([AC_CANONICAL_BUILD]) []dnl
case ${build_alias} in
"") build_noncanonical=${build} ;;
*) build_noncanonical=${build_alias} ;;
esac
]) []dnl # _GCC_TOPLEV_NONCANONICAL_BUILD
dnl ####
dnl # _GCC_TOPLEV_NONCANONICAL_HOST
dnl # $host_alias, or $build_noncanonical if blank.
dnl # Used when we would use $host_alias, but empty is not OK.
AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_HOST],
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
case ${host_alias} in
"") host_noncanonical=${build_noncanonical} ;;
*) host_noncanonical=${host_alias} ;;
esac
]) []dnl # _GCC_TOPLEV_NONCANONICAL_HOST
dnl ####
dnl # _GCC_TOPLEV_NONCANONICAL_TARGET
dnl # $target_alias or $host_noncanonical if blank.
dnl # Used when we would use $target_alias, but empty is not OK.
AC_DEFUN([_GCC_TOPLEV_NONCANONICAL_TARGET],
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_HOST]) []dnl
case ${target_alias} in
"") target_noncanonical=${host_noncanonical} ;;
*) target_noncanonical=${target_alias} ;;
esac
]) []dnl # _GCC_TOPLEV_NONCANONICAL_TARGET
dnl ####
dnl # ACX_NONCANONICAL_BUILD
dnl # Like underscored version, but AC_SUBST's.
AC_DEFUN([ACX_NONCANONICAL_BUILD],
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
AC_SUBST(build_noncanonical)
]) []dnl # ACX_NONCANONICAL_BUILD
dnl ####
dnl # ACX_NONCANONICAL_HOST
dnl # Like underscored version, but AC_SUBST's.
AC_DEFUN([ACX_NONCANONICAL_HOST],
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_HOST]) []dnl
AC_SUBST(host_noncanonical)
]) []dnl # ACX_NONCANONICAL_HOST
dnl ####
dnl # ACX_NONCANONICAL_TARGET
dnl # Like underscored version, but AC_SUBST's.
AC_DEFUN([ACX_NONCANONICAL_TARGET],
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_TARGET]) []dnl
AC_SUBST(target_noncanonical)
]) []dnl # ACX_NONCANONICAL_TARGET
dnl ####
dnl # GCC_TOPLEV_SUBDIRS
dnl # GCC & friends build 'build', 'host', and 'target' tools. These must
dnl # be separated into three well-known subdirectories of the build directory:
dnl # build_subdir, host_subdir, and target_subdir. The values are determined
dnl # here so that they can (theoretically) be changed in the future. They
dnl # were previously reproduced across many different files.
dnl #
dnl # This logic really amounts to very little with autoconf 2.13; it will
dnl # amount to a lot more with autoconf 2.5x.
AC_DEFUN([GCC_TOPLEV_SUBDIRS],
[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_TARGET]) []dnl
AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
# post-stage1 host modules use a different CC_FOR_BUILD so, in order to
# have matching libraries, they should use host libraries: Makefile.tpl
# arranges to pass --with-build-libsubdir=$(HOST_SUBDIR).
# However, they still use the build modules, because the corresponding
# host modules (e.g. bison) are only built for the host when bootstrap
# finishes. So:
# - build_subdir is where we find build modules, and never changes.
# - build_libsubdir is where we find build libraries, and can be overridden.
# Prefix 'build-' so this never conflicts with target_subdir.
build_subdir="build-${build_noncanonical}"
AC_ARG_WITH(build-libsubdir,
[ --with-build-libsubdir=[DIR] Directory where to find libraries for build system],
build_libsubdir="$withval",
build_libsubdir="$build_subdir")
# --srcdir=. covers the toplevel, while "test -d" covers the subdirectories
if ( test $srcdir = . && test -d gcc ) \
|| test -d $srcdir/../host-${host_noncanonical}; then
host_subdir="host-${host_noncanonical}"
else
host_subdir=.
fi
# No prefix.
target_subdir=${target_noncanonical}
AC_SUBST([build_libsubdir]) []dnl
AC_SUBST([build_subdir]) []dnl
AC_SUBST([host_subdir]) []dnl
AC_SUBST([target_subdir]) []dnl
]) []dnl # GCC_TOPLEV_SUBDIRS
####
# _NCN_TOOL_PREFIXES: Some stuff that oughtta be done in AC_CANONICAL_SYSTEM
# or AC_INIT.
# These demand that AC_CANONICAL_SYSTEM be called beforehand.
AC_DEFUN([_NCN_TOOL_PREFIXES],
[ncn_tool_prefix=
test -n "$host_alias" && ncn_tool_prefix=$host_alias-
ncn_target_tool_prefix=
test -n "$target_alias" && ncn_target_tool_prefix=$target_alias-
]) []dnl # _NCN_TOOL_PREFIXES
####
# NCN_STRICT_CHECK_TOOLS(variable, progs-to-check-for,[value-if-not-found],[path])
# Like plain AC_CHECK_TOOLS, but require prefix if build!=host.
AC_DEFUN([NCN_STRICT_CHECK_TOOLS],
[AC_REQUIRE([_NCN_TOOL_PREFIXES]) []dnl
AC_ARG_VAR([$1], [$1 for the host])
if test -n "[$]$1"; then
ac_cv_prog_$1=[$]$1
elif test -n "$ac_cv_prog_$1"; then
$1=$ac_cv_prog_$1
fi
if test -n "$ac_cv_prog_$1"; then
for ncn_progname in $2; do
AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4])
done
fi
for ncn_progname in $2; do
if test -n "$ncn_tool_prefix"; then
AC_CHECK_PROG([$1], [${ncn_tool_prefix}${ncn_progname}],
[${ncn_tool_prefix}${ncn_progname}], , [$4])
fi
if test -z "$ac_cv_prog_$1" && test $build = $host ; then
AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4])
fi
test -n "$ac_cv_prog_$1" && break
done
if test -z "$ac_cv_prog_$1" ; then
ifelse([$3],[], [set dummy $2
if test $build = $host ; then
$1="[$]2"
else
$1="${ncn_tool_prefix}[$]2"
fi], [$1="$3"])
fi
]) []dnl # NCN_STRICT_CHECK_TOOLS
####
# NCN_STRICT_CHECK_TARGET_TOOLS(variable, progs-to-check-for,[value-if-not-found],[path])
# Like CVS Autoconf AC_CHECK_TARGET_TOOLS, but require prefix if build!=target.
AC_DEFUN([NCN_STRICT_CHECK_TARGET_TOOLS],
[AC_REQUIRE([_NCN_TOOL_PREFIXES]) []dnl
AC_ARG_VAR([$1], patsubst([$1], [_FOR_TARGET$], [])[ for the target])
if test -n "[$]$1"; then
ac_cv_prog_$1=[$]$1
elif test -n "$ac_cv_prog_$1"; then
$1=$ac_cv_prog_$1
fi
if test -n "$ac_cv_prog_$1"; then
for ncn_progname in $2; do
AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4])
done
fi
if test -z "$ac_cv_prog_$1" && test -n "$with_build_time_tools"; then
for ncn_progname in $2; do
AC_MSG_CHECKING([for ${ncn_progname} in $with_build_time_tools])
if test -x $with_build_time_tools/${ncn_progname}; then
ac_cv_prog_$1=$with_build_time_tools/${ncn_progname}
AC_MSG_RESULT(yes)
break
else
AC_MSG_RESULT(no)
fi
done
fi
if test -z "$ac_cv_prog_$1"; then
for ncn_progname in $2; do
if test -n "$ncn_target_tool_prefix"; then
AC_CHECK_PROG([$1], [${ncn_target_tool_prefix}${ncn_progname}],
[${ncn_target_tool_prefix}${ncn_progname}], , [$4])
fi
if test -z "$ac_cv_prog_$1" && test $build = $target ; then
AC_CHECK_PROG([$1], [${ncn_progname}], [${ncn_progname}], , [$4])
fi
test -n "$ac_cv_prog_$1" && break
done
fi
if test -z "$ac_cv_prog_$1" ; then
ifelse([$3],[], [set dummy $2
if test $build = $target ; then
$1="[$]2"
else
$1="${ncn_target_tool_prefix}[$]2"
fi], [$1="$3"])
else
$1="$ac_cv_prog_$1"
fi
]) []dnl # NCN_STRICT_CHECK_TARGET_TOOLS
# Backported from Autoconf 2.5x; can go away when and if
# we switch. Put the OS path separator in $PATH_SEPARATOR.
AC_DEFUN([ACX_PATH_SEP], [
# The user is always right.
if test "${PATH_SEPARATOR+set}" != set; then
echo "#! /bin/sh" >conf$$.sh
echo "exit 0" >>conf$$.sh
chmod +x conf$$.sh
if (PATH="/nonexistent;."; conf$$.sh) >/dev/null 2>&1; then
PATH_SEPARATOR=';'
else
PATH_SEPARATOR=:
fi
rm -f conf$$.sh
fi
])
AC_DEFUN([ACX_TOOL_DIRS], [
AC_REQUIRE([ACX_PATH_SEP])
if test "x$exec_prefix" = xNONE; then
if test "x$prefix" = xNONE; then
gcc_cv_tool_prefix=$ac_default_prefix
else
gcc_cv_tool_prefix=$prefix
fi
else
gcc_cv_tool_prefix=$exec_prefix
fi
# If there is no compiler in the tree, use the PATH only. In any
# case, if there is no compiler in the tree nobody should use
# AS_FOR_TARGET and LD_FOR_TARGET.
if test x$host = x$build && test -f $srcdir/gcc/BASE-VER; then
gcc_version=`cat $srcdir/gcc/BASE-VER`
gcc_cv_tool_dirs="$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/libexec/gcc/$target_noncanonical$PATH_SEPARATOR"
gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
gcc_cv_tool_dirs="$gcc_cv_tool_dirs/usr/lib/gcc/$target_noncanonical$PATH_SEPARATOR"
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin/$target_noncanonical/$gcc_version$PATH_SEPARATOR"
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$gcc_cv_tool_prefix/$target_noncanonical/bin$PATH_SEPARATOR"
else
gcc_cv_tool_dirs=
fi
if test x$build = x$target && test -n "$md_exec_prefix"; then
gcc_cv_tool_dirs="$gcc_cv_tool_dirs$md_exec_prefix$PATH_SEPARATOR"
fi
]) []dnl # ACX_TOOL_DIRS
# ACX_HAVE_GCC_FOR_TARGET
# Check if the variable GCC_FOR_TARGET really points to a GCC binary.
AC_DEFUN([ACX_HAVE_GCC_FOR_TARGET], [
cat > conftest.c << \EOF
#ifdef __GNUC__
gcc_yay;
#endif
EOF
if ($GCC_FOR_TARGET -E conftest.c | grep gcc_yay) > /dev/null 2>&1; then
have_gcc_for_target=yes
else
GCC_FOR_TARGET=${ncn_target_tool_prefix}gcc
have_gcc_for_target=no
fi
rm conftest.c
])
# ACX_CHECK_INSTALLED_TARGET_TOOL(VAR, PROG)
# Searching for installed target binutils. We need to take extra care,
# else we may find the wrong assembler, linker, etc., and lose.
#
# First try --with-build-time-tools, if specified.
#
# For build != host, we ask the installed GCC for the name of the tool it
# uses, and accept it if it is an absolute path. This is because the
# only good choice for a compiler is the same GCC version that is being
# installed (or we couldn't make target libraries), and we assume that
# on the host system we'll have not only the same GCC version, but also
# the same binutils version.
#
# For build == host, search the same directories that the installed
# compiler will search. We used to do this for the assembler, linker,
# and nm only; for simplicity of configuration, however, we extend this
# criterion to tools (such as ar and ranlib) that are never invoked by
# the compiler, to avoid mismatches.
#
# Also note we have to check MD_EXEC_PREFIX before checking the user's path
# if build == target. This makes the most sense only when bootstrapping,
# but we also do so when build != host. In this case, we hope that the
# build and host systems will have similar contents of MD_EXEC_PREFIX.
#
# If we do not find a suitable binary, then try the user's path.
AC_DEFUN([ACX_CHECK_INSTALLED_TARGET_TOOL], [
AC_REQUIRE([ACX_TOOL_DIRS])
AC_REQUIRE([ACX_HAVE_GCC_FOR_TARGET])
if test -z "$ac_cv_path_$1" ; then
if test -n "$with_build_time_tools"; then
AC_MSG_CHECKING([for $2 in $with_build_time_tools])
if test -x $with_build_time_tools/$2; then
$1=`cd $with_build_time_tools && pwd`/$2
ac_cv_path_$1=[$]$1
AC_MSG_RESULT([$ac_cv_path_$1])
else
AC_MSG_RESULT(no)
fi
elif test $build != $host && test $have_gcc_for_target = yes; then
$1=`$GCC_FOR_TARGET --print-prog-name=$2`
test [$]$1 = $2 && $1=
test -n "[$]$1" && ac_cv_path_$1=[$]$1
fi
fi
if test -z "$ac_cv_path_$1" && test -n "$gcc_cv_tool_dirs"; then
AC_PATH_PROG([$1], [$2], [], [$gcc_cv_tool_dirs])
fi
if test -z "$ac_cv_path_$1" ; then
NCN_STRICT_CHECK_TARGET_TOOLS([$1], [$2])
else
$1=$ac_cv_path_$1
fi
]) []dnl # ACX_CHECK_INSTALLED_TARGET_TOOL
###
# AC_PROG_CPP_WERROR
# Used for autoconf 2.5x to force AC_PREPROC_IFELSE to reject code which
# triggers warnings from the preprocessor. Will be in autoconf 2.58.
# For now, using this also overrides header checks to use only the
# preprocessor (matches 2.13 behavior; matching 2.58's behavior is a
# bit harder from here).
# Eventually autoconf will default to checking headers with the compiler
# instead, and we'll have to do this differently.
AC_DEFUN([AC_PROG_CPP_WERROR],
[AC_REQUIRE([AC_PROG_CPP])dnl
m4_define([AC_CHECK_HEADER],m4_defn([_AC_CHECK_HEADER_OLD]))
ac_c_preproc_warn_flag=yes])# AC_PROG_CPP_WERROR
# Test for GNAT.
# We require the gnatbind & gnatmake programs, as well as a compiler driver
# that understands Ada. We use the user's CC setting, already found, and
# possibly add $1 to the command-line parameters.
#
# Sets the shell variable have_gnat to yes or no as appropriate, and
# substitutes GNATBIND and GNATMAKE.
AC_DEFUN([ACX_PROG_GNAT],
[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])
AC_REQUIRE([AC_PROG_CC])
AC_CHECK_TOOL(GNATBIND, gnatbind, no)
AC_CHECK_TOOL(GNATMAKE, gnatmake, no)
AC_CACHE_CHECK([whether compiler driver understands Ada],
acx_cv_cc_gcc_supports_ada,
[cat >conftest.adb <<EOF
procedure conftest is begin null; end conftest;
EOF
acx_cv_cc_gcc_supports_ada=no
# There is a bug in old released versions of GCC which causes the
# driver to exit successfully when the appropriate language module
# has not been installed. This is fixed in 2.95.4, 3.0.2, and 3.1.
# Therefore we must check for the error message as well as an
# unsuccessful exit.
# Other compilers, like HP Tru64 UNIX cc, exit successfully when
# given a .adb file, but produce no object file. So we must check
# if an object file was really produced to guard against this.
errors=`(${CC} $1[]m4_ifval([$1], [ ])-c conftest.adb) 2>&1 || echo failure`
if test x"$errors" = x && test -f conftest.$ac_objext; then
acx_cv_cc_gcc_supports_ada=yes
fi
rm -f conftest.*])
if test "x$GNATBIND" != xno && test "x$GNATMAKE" != xno && test x$acx_cv_cc_gcc_supports_ada != xno; then
have_gnat=yes
else
have_gnat=no
fi
])
dnl 'make compare' can be significantly faster, if cmp itself can
dnl skip bytes instead of using tail. The test being performed is
dnl "if cmp --ignore-initial=2 t1 t2 && ! cmp --ignore-initial=1 t1 t2"
dnl but we need to sink errors and handle broken shells. We also test
dnl for the parameter format "cmp file1 file2 skip1 skip2" which is
dnl accepted by cmp on some systems.
AC_DEFUN([ACX_PROG_CMP_IGNORE_INITIAL],
[AC_CACHE_CHECK([how to compare bootstrapped objects], gcc_cv_prog_cmp_skip,
[ echo abfoo >t1
echo cdfoo >t2
gcc_cv_prog_cmp_skip='tail -c +17 $$f1 > tmp-foo1; tail -c +17 $$f2 > tmp-foo2; cmp tmp-foo1 tmp-foo2'
if cmp t1 t2 2 2 > /dev/null 2>&1; then
if cmp t1 t2 1 1 > /dev/null 2>&1; then
:
else
gcc_cv_prog_cmp_skip='cmp $$f1 $$f2 16 16'
fi
fi
if cmp --ignore-initial=2 t1 t2 > /dev/null 2>&1; then
if cmp --ignore-initial=1 t1 t2 > /dev/null 2>&1; then
:
else
gcc_cv_prog_cmp_skip='cmp --ignore-initial=16 $$f1 $$f2'
fi
fi
rm t1 t2
])
do_compare="$gcc_cv_prog_cmp_skip"
AC_SUBST(do_compare)
])
dnl See whether we can include both string.h and strings.h.
AC_DEFUN([ACX_HEADER_STRING],
[AC_CACHE_CHECK([whether string.h and strings.h may both be included],
gcc_cv_header_string,
[AC_TRY_COMPILE([#include <string.h>
#include <strings.h>], , gcc_cv_header_string=yes, gcc_cv_header_string=no)])
if test $gcc_cv_header_string = yes; then
AC_DEFINE(STRING_WITH_STRINGS, 1, [Define if you can safely include both <string.h> and <strings.h>.])
fi
])
dnl See if stdbool.h properly defines bool and true/false.
dnl Check whether _Bool is built-in.
AC_DEFUN([ACX_HEADER_STDBOOL],
[AC_CACHE_CHECK([for working stdbool.h],
ac_cv_header_stdbool_h,
[AC_TRY_COMPILE([#include <stdbool.h>],
[bool foo = false;],
ac_cv_header_stdbool_h=yes, ac_cv_header_stdbool_h=no)])
if test $ac_cv_header_stdbool_h = yes; then
AC_DEFINE(HAVE_STDBOOL_H, 1,
[Define if you have a working <stdbool.h> header file.])
fi
AC_CACHE_CHECK(for built-in _Bool, gcc_cv_c__bool,
[AC_TRY_COMPILE(,
[_Bool foo;],
gcc_cv_c__bool=yes, gcc_cv_c__bool=no)
])
if test $gcc_cv_c__bool = yes; then
AC_DEFINE(HAVE__BOOL, 1, [Define if the \`_Bool' type is built-in.])
fi
])
dnl See if hard links work and if not, try to substitute $1 or simple copy.
AC_DEFUN([ACX_PROG_LN],
[AC_MSG_CHECKING(whether ln works)
AC_CACHE_VAL(acx_cv_prog_LN,
[rm -f conftestdata_t
echo >conftestdata_f
if ln conftestdata_f conftestdata_t 2>/dev/null
then
acx_cv_prog_LN=ln
else
acx_cv_prog_LN=no
fi
rm -f conftestdata_f conftestdata_t
])dnl
if test $acx_cv_prog_LN = no; then
LN="ifelse([$1],,cp,[$1])"
AC_MSG_RESULT([no, using $LN])
else
LN="$acx_cv_prog_LN"
AC_MSG_RESULT(yes)
fi
AC_SUBST(LN)dnl
])
dnl GCC_TARGET_TOOL(PROGRAM, TARGET-VAR, HOST-VAR, IN-TREE-TOOL, LANGUAGE)
AC_DEFUN([GCC_TARGET_TOOL],
[AC_MSG_CHECKING(where to find the target $1)
if test "x${build}" != "x${host}" ; then
if expr "x[$]$2" : "x/" > /dev/null; then
# We already found the complete path
ac_dir=`dirname [$]$2`
AC_MSG_RESULT(pre-installed in $ac_dir)
else
# Canadian cross, just use what we found
AC_MSG_RESULT(pre-installed)
fi
else
ifelse([$4],,,
[ok=yes
case " ${configdirs} " in
*" patsubst([$4], [/.*], []) "*) ;;
*) ok=no ;;
esac
ifelse([$5],,,
[case ,${enable_languages}, in
*,$5,*) ;;
*) ok=no ;;
esac])
if test $ok = yes; then
# An in-tree tool is available and we can use it
$2='$$r/$(HOST_SUBDIR)/$4'
AC_MSG_RESULT(just compiled)
el])if expr "x[$]$2" : "x/" > /dev/null; then
# We already found the complete path
ac_dir=`dirname [$]$2`
AC_MSG_RESULT(pre-installed in $ac_dir)
elif test "x$target" = "x$host"; then
# We can use an host tool
$2='$($3)'
AC_MSG_RESULT(host tool)
else
# We need a cross tool
AC_MSG_RESULT(pre-installed)
fi
fi
AC_SUBST($2)])
dnl Locate a program and check that its version is acceptable.
dnl ACX_PROG_CHECK_VER(var, name, version-switch,
dnl version-extract-regexp, version-glob)
AC_DEFUN([ACX_CHECK_PROG_VER],[
AC_CHECK_PROG([$1], [$2], [$2])
if test -n "[$]$1"; then
# Found it, now check the version.
AC_CACHE_CHECK([for modern $2],
[gcc_cv_prog_$2_modern],
[ac_prog_version=`eval [$]$1 $3 2>&1 |
sed -n 's/^.*patsubst([[$4]],/,\/).*$/\1/p'`
[case $ac_prog_version in
'') gcc_cv_prog_$2_modern=no;;
$5) gcc_cv_prog_$2_modern=yes;;
*) gcc_cv_prog_$2_modern=no;;
esac]
])
else
gcc_cv_prog_$2_modern=no
fi
if test $gcc_cv_prog_$2_modern = no; then
$1="${CONFIG_SHELL-/bin/sh} $ac_aux_dir/missing $2"
fi
])
dnl Support the --with-pkgversion configure option.
dnl ACX_PKGVERSION(default-pkgversion)
AC_DEFUN([ACX_PKGVERSION],[
AC_ARG_WITH(pkgversion,
AS_HELP_STRING([--with-pkgversion=PKG],
[Use PKG in the version string in place of "$1"]),
[case "$withval" in
yes) AC_MSG_ERROR([package version not specified]) ;;
no) PKGVERSION= ;;
*) PKGVERSION="($withval) " ;;
esac],
PKGVERSION="($1) "
)
AC_SUBST(PKGVERSION)
])
dnl Support the --with-bugurl configure option.
dnl ACX_BUGURL(default-bugurl)
AC_DEFUN([ACX_BUGURL],[
AC_ARG_WITH(bugurl,
AS_HELP_STRING([--with-bugurl=URL],
[Direct users to URL to report a bug]),
[case "$withval" in
yes) AC_MSG_ERROR([bug URL not specified]) ;;
no) BUGURL=
;;
*) BUGURL="$withval"
;;
esac],
BUGURL="$1"
)
case ${BUGURL} in
"")
REPORT_BUGS_TO=
REPORT_BUGS_TEXI=
;;
*)
REPORT_BUGS_TO="<$BUGURL>"
REPORT_BUGS_TEXI=@uref{`echo "$BUGURL" | sed 's/@/@@/g'`}
;;
esac;
AC_SUBST(REPORT_BUGS_TO)
AC_SUBST(REPORT_BUGS_TEXI)
])
dnl ####
dnl # ACX_CHECK_CYGWIN_CAT_WORKS
dnl # On Cygwin hosts, check that the cat command ignores
dnl # carriage returns as otherwise builds will not work.
dnl # See binutils PR 4334 for more details.
AC_DEFUN([ACX_CHECK_CYGWIN_CAT_WORKS],[
AC_MSG_CHECKING([to see if cat works as expected])
echo a >cygwin-cat-check
if test `cat cygwin-cat-check` = a ; then
rm cygwin-cat-check
AC_MSG_RESULT(yes)
else
rm cygwin-cat-check
AC_MSG_RESULT(no)
AC_MSG_ERROR([The cat command does not ignore carriage return characters.
Please either mount the build directory in binary mode or run the following
commands before running any configure script:
set -o igncr
export SHELLOPTS
])
fi
])
|