1 # Extra autoconf macros for the Glasgow fptools
3 # To be a good autoconf citizen, names of local macros have prefixed with FP_ to
4 # ensure we don't clash with any pre-supplied autoconf ones.
7 # FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN
8 # ----------------------------------
9 # Little endian Arm on Linux with some ABIs has big endian word order
10 # in doubles. Define FLOAT_WORDS_BIGENDIAN if this is the case.
11 AC_DEFUN([FPTOOLS_FLOAT_WORD_ORDER_BIGENDIAN],
12 [AC_CACHE_CHECK([whether float word order is big endian], [fptools_cv_float_word_order_bigendian],
15 [#include <endian.h>],
16 [#if defined(__FLOAT_WORD_ORDER) && __FLOAT_WORD_ORDER == BIG_ENDIAN
19 not float word order big endian
22 [fptools_cv_float_word_order_bigendian=yes],
23 [fptools_cv_float_word_order_bigendian=no])
25 case $fptools_cv_float_word_order_bigendian in
27 AC_DEFINE([FLOAT_WORDS_BIGENDIAN], 1,
28 [Define to 1 if your processor stores words of floats with
29 the most significant byte first]) ;;
34 # FP_EVAL_STDERR(COMMAND)
35 # -----------------------
36 # Eval COMMAND, save its stderr (without lines resulting from shell tracing)
37 # into the file conftest.err and the exit status in the variable fp_status.
38 AC_DEFUN([FP_EVAL_STDERR],
39 [{ (eval $1) 2>conftest.er1
41 grep -v '^ *+' conftest.er1 >conftest.err
43 (exit $fp_status); }[]dnl
47 # FP_PROG_CONTEXT_DIFF
48 # --------------------
49 # Figure out how to do context diffs. Sets the output variable ContextDiffCmd.
51 # Note: NeXTStep thinks diff'ing a file against itself is "trouble".
53 # Used by ghc, glafp-utils/ltx, and glafp-utils/runstdtest.
54 AC_DEFUN([FP_PROG_CONTEXT_DIFF],
55 [AC_CACHE_CHECK([for a working context diff], [fp_cv_context_diff],
59 for fp_var in '-U 1' '-u1' '-C 1' '-c1'
61 if diff $fp_var conftest1 conftest2 > /dev/null 2>&1; then
62 fp_cv_context_diff="diff $fp_var"
66 if test x"$fp_cv_context_diff" = xno; then
67 AC_MSG_ERROR([cannot figure out how to do context diffs])
69 AC_SUBST(ContextDiffCmd, [$fp_cv_context_diff])
70 ])# FP_PROG_CONTEXT_DIFF
73 # FP_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS)
74 # --------------------------------------------------------
75 # Assign VARIABLE the value of the compile-time EXPRESSION using INCLUDES for
76 # compilation. Execute IF-FAILS when unable to determine the value. Works for
77 # cross-compilation, too.
79 # Implementation note: We are lazy and use an internal autoconf macro, but it
80 # is supported in autoconf versions 2.50 up to the actual 2.57, so there is
82 AC_DEFUN([FP_COMPUTE_INT],
83 [_AC_COMPUTE_INT([$1], [$2], [$3], [$4])[]dnl
87 # FP_CHECK_ALIGNMENT(TYPE, [IGNORED], [INCLUDES = DEFAULT-INCLUDES])
88 # ------------------------------------------------------------------
89 # A variation of AC_CHECK_SIZEOF for computing the alignment restrictions of a
90 # given type. Defines ALIGNMENT_TYPE.
91 AC_DEFUN([FP_CHECK_ALIGNMENT],
92 [AS_LITERAL_IF([$1], [],
93 [AC_FATAL([$0: requires literal arguments])])[]dnl
94 AC_CHECK_TYPE([$1], [], [], [$3])[]dnl
95 m4_pushdef([fp_Cache], [AS_TR_SH([fp_cv_alignment_$1])])[]dnl
96 AC_CACHE_CHECK([alignment of $1], [fp_Cache],
97 [if test "$AS_TR_SH([ac_cv_type_$1])" = yes; then
98 FP_COMPUTE_INT([(long) (&((struct { char c; $1 ty; } *)0)->ty)],
100 [AC_INCLUDES_DEFAULT([$3])],
101 [AC_MSG_ERROR([cannot compute alignment ($1)
102 See `config.log' for more details.], [77])])
106 AC_DEFINE_UNQUOTED(AS_TR_CPP(alignment_$1), $fp_Cache, [The alignment of a `$1'.])[]dnl
107 m4_popdef([fp_Cache])[]dnl
108 ])# FP_CHECK_ALIGNMENT
111 # FP_LEADING_UNDERSCORE
112 # ---------------------
113 # Test for determining whether symbol names have a leading underscore. We assume
114 # that they _haven't_ if anything goes wrong. Sets the output variable
115 # LeadingUnderscore to YES or NO and defines LEADING_UNDERSCORE correspondingly.
117 # Some nlist implementations seem to try to be compatible by ignoring a leading
118 # underscore sometimes (eg. FreeBSD). We therefore have to work around this by
119 # checking for *no* leading underscore first. Sigh. --SDM
121 # Similarly on OpenBSD, but this test doesn't help. -- dons
122 AC_DEFUN([FP_LEADING_UNDERSCORE],
123 [AC_CHECK_LIB([elf], [nlist], [LIBS="-lelf $LIBS"])
124 AC_CACHE_CHECK([leading underscore in symbol names], [fptools_cv_leading_underscore], [
125 # Hack!: nlist() under Digital UNIX insist on there being an _,
126 # but symbol table listings shows none. What is going on here?!?
128 # Another hack: cygwin doesn't come with nlist.h , so we hardwire
129 # the underscoredness of that "platform"
130 case $HostPlatform in
131 *openbsd*) # x86 openbsd is ELF from 3.4 >, meaning no leading uscore
133 i386-*2\.@<:@0-9@:>@ | i386-*3\.@<:@0-3@:>@ ) fptools_cv_leading_underscore=yes ;;
134 *) fptools_cv_leading_underscore=no ;;
136 alpha-dec-osf*) fptools_cv_leading_underscore=no;;
137 *cygwin32) fptools_cv_leading_underscore=yes;;
138 *mingw32) fptools_cv_leading_underscore=yes;;
140 # HACK: Apple doesn't seem to provide nlist in the 64-bit-libraries
141 x86_64-apple-darwin*) fptools_cv_leading_underscore=yes;;
143 *) AC_RUN_IFELSE([AC_LANG_SOURCE([[#ifdef HAVE_NLIST_H
145 struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}};
146 struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}};
154 if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0)
156 if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0)
160 }]])],[fptools_cv_leading_underscore=yes],[fptools_cv_leading_underscore=no],[fptools_cv_leading_underscore=no])
163 AC_SUBST([LeadingUnderscore], [`echo $fptools_cv_leading_underscore | sed 'y/yesno/YESNO/'`])
164 if test x"$fptools_cv_leading_underscore" = xyes; then
165 AC_DEFINE([LEADING_UNDERSCORE], [1], [Define to 1 if C symbols have a leading underscore added by the compiler.])
166 fi])# FP_LEADING_UNDERSCORE
169 # FP_COMPARE_VERSIONS(VERSION1, TEST, VERSION2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
170 # ----------------------------------------------------------------------------------
171 # Compare dotted version numbers VERSION1 and VERSION2 lexicographically according
172 # to TEST (one of -eq, -ne, -lt, -le, -gt, or -ge).
173 AC_DEFUN([FP_COMPARE_VERSIONS],
174 [fp_version1=$1; fp_version2=$3
175 fp_save_IFS=$IFS; IFS='.'
176 while test x"$fp_version1" != x || test x"$fp_version2" != x
179 set dummy $fp_version1; shift
181 test $[@%:@] = 0 || { fp_num1="[$]1"; shift; }
182 test x"$fp_num1" = x && fp_num1="0"
185 set dummy $fp_version2; shift
187 test $[@%:@] = 0 || { fp_num2="[$]1"; shift; }
188 test x"$fp_num2" = x && fp_num2="0"
191 test "$fp_num1" = "$fp_num2" || break;
194 AS_IF([test "$fp_num1" $2 "$fp_num2"], [$4], [$5])[]dnl
195 ])# FP_COMPARE_VERSIONS
199 dnl Check for GreenCard and version.
201 AC_DEFUN([FPTOOLS_GREENCARD],
203 AC_PATH_PROG(GreenCardCmd,greencard)
204 AC_CACHE_CHECK([for version of greencard], fptools_cv_greencard_version,
206 [if test x"$GreenCardCmd" != x; then
207 fptools_cv_greencard_version="`$GreenCardCmd --version |
208 grep 'version' | sed -e 's/greencard. version \([^ ]*\).*/\1/g'`"
210 fptools_cv_greencard_version=""
214 FP_COMPARE_VERSIONS([$fptools_cv_greencard_version],[-lt],[$1],
215 [AC_MSG_ERROR([greencard version $1 or later is required (found '$fptools_cv_greencard_version')])])[]dnl
216 GreenCardVersion=$fptools_cv_greencard_version
217 AC_SUBST(GreenCardVersion)
221 dnl Check for Happy and version. If we're building GHC, then we need
222 dnl at least Happy version 1.14. If there's no installed Happy, we look
223 dnl for a happy source tree and point the build system at that instead.
225 AC_DEFUN([FPTOOLS_HAPPY],
226 [AC_PATH_PROG(HappyCmd,happy,)
227 # Happy is passed to Cabal, so we need a native path
228 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
229 test "${OSTYPE}" != "msys" && \
230 test "${HappyCmd}" != ""
232 # Canonicalise to <drive>:/path/to/gcc
233 HappyCmd=`cygpath -m ${HappyCmd}`
234 AC_MSG_NOTICE([normalized happy command to $HappyCmd])
237 AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
239 [if test x"$HappyCmd" != x; then
240 fptools_cv_happy_version=`"$HappyCmd" -v |
241 grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'` ;
243 fptools_cv_happy_version="";
247 if test ! -f compiler/parser/Parser.hs || test ! -f compiler/main/ParsePkgConf.hs || test ! -f compiler/cmm/CmmParse.hs || test ! -f compiler/parser/ParserCore.hs
249 FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-lt],[1.16],
250 [AC_MSG_ERROR([Happy version 1.16 or later is required to compile GHC.])])[]
252 HappyVersion=$fptools_cv_happy_version;
253 AC_SUBST(HappyVersion)
257 dnl Check for Alex and version. If we're building GHC, then we need
258 dnl at least Alex version 2.0.1.
260 AC_DEFUN([FPTOOLS_ALEX],
262 AC_PATH_PROG(AlexCmd,alex,)
263 # Alex is passed to Cabal, so we need a native path
264 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
265 test "${OSTYPE}" != "msys" && \
266 test "${AlexCmd}" != ""
268 # Canonicalise to <drive>:/path/to/gcc
269 AlexCmd=`cygpath -m ${AlexCmd}`
272 AC_CACHE_CHECK([for version of alex], fptools_cv_alex_version,
274 [if test x"$AlexCmd" != x; then
275 fptools_cv_alex_version=`"$AlexCmd" -v |
276 grep 'Alex [Vv]ersion' | sed -e 's/Alex [Vv]ersion \([0-9\.]*\).*/\1/g'` ;
278 fptools_cv_alex_version="";
282 if test ! -f compiler/cmm/CmmLex.hs || test ! -f compiler/parser/Lexer.hs
284 FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[2.1.0],
285 [AC_MSG_ERROR([Alex version 2.1.0 or later is required to compile GHC.])])[]
287 AlexVersion=$fptools_cv_alex_version;
288 AC_SUBST(AlexVersion)
293 dnl Check for windres and version.
295 dnl 2.17.50 doesn't work
298 AC_DEFUN([FPTOOLS_WINDRES],
300 if test "x$HostPlatform" = "xi386-unknown-mingw32"
302 AC_PATH_PROG(WindResCmd,windres,)
303 # Alex is passed to Cabal, so we need a native path
304 if test "${OSTYPE}" != "msys" && \
305 test "${WindResCmd}" != ""
307 # Canonicalise to <drive>:/path/to/gcc
308 WindResCmd=`cygpath -m ${WindResCmd}`
311 AC_CACHE_CHECK([for version of windres], fptools_cv_windres_version,
314 if test x"$WindResCmd" != x
316 fptools_cv_windres_version="`$WindResCmd --version |
318 sed -e 's/GNU windres[^0-9]* \([0-9\.]*\).*/\1/g'`" ;
320 fptools_cv_windres_version="";
324 FP_COMPARE_VERSIONS([$fptools_cv_windres_version],[-eq],[2.17.50],
325 [AC_MSG_ERROR([Your windres version isn't compatible with GHC. 2.15.91 and 2.18.50 are known to work.])])[]
326 WindResVersion=$fptools_cv_windres_version;
327 AC_SUBST(WindResVersion)
334 # Sets the output variable LdCmd to the (non-Cygwin version of the) full path
335 # of ld. Exits if no ld can be found
336 AC_DEFUN([FP_PROG_LD],
340 AC_PATH_PROG([fp_prog_ld_raw], [ld])
341 if test -z "$fp_prog_ld_raw"; then
342 AC_MSG_ERROR([cannot find ld in your PATH, no idea how to link])
344 LdCmd=$fp_prog_ld_raw
345 case $HostPlatform in
346 *mingw32) if test x${OSTYPE} != xmsys; then
347 LdCmd="`cygpath -w ${fp_prog_ld_raw} | sed -e 's@\\\\@/@g'`"
348 AC_MSG_NOTICE([normalized ld command to $LdCmd])
350 # Insist on >= ld-2.15.x, since earlier versions doesn't handle
351 # the generation of relocatable object files with large amounts
352 # of relocations correctly. (cf. HSbase.o splittage-hack)
353 fp_prog_ld_version=`${LdCmd} --version | sed -n '/GNU ld/p' | tr -cd 0-9 | cut -b1-3`
354 FP_COMPARE_VERSIONS([$fp_prog_ld_version],[-lt],[214],
355 [AC_MSG_ERROR([GNU ld version later than 2.14 required to compile GHC on Windows.])])[]dnl
367 # Sets the output variable LdXFlag to -x if ld supports this flag, otherwise the
368 # variable's value is empty.
369 AC_DEFUN([FP_PROG_LD_X],
370 [AC_REQUIRE([FP_PROG_LD])
371 AC_CACHE_CHECK([whether ld understands -x], [fp_cv_ld_x],
372 [echo 'foo() {}' > conftest.c
373 ${CC-cc} -c conftest.c
374 if ${LdCmd} -r -x -o conftest2.o conftest.o > /dev/null 2>&1; then
380 if test "$fp_cv_ld_x" = yes; then
391 # Sets the output variable LdIsGNULd to YES or NO, depending on whether it is
393 AC_DEFUN([FP_PROG_LD_IS_GNU],
394 [AC_REQUIRE([FP_PROG_LD])
395 AC_CACHE_CHECK([whether ld is GNU ld], [fp_cv_gnu_ld],
396 [if ${LdCmd} --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
401 AC_SUBST([LdIsGNULd], [`echo $fp_cv_gnu_ld | sed 'y/yesno/YESNO/'`])
402 ])# FP_PROG_LD_IS_GNU
407 # Sets fp_prog_ar_raw to the full path of ar and fp_prog_ar to a non-Cygwin
408 # version of it. Exits if no ar can be found
409 AC_DEFUN([FP_PROG_AR],
410 [AC_PATH_PROG([fp_prog_ar_raw], [ar])
411 if test -z "$fp_prog_ar_raw"; then
412 AC_MSG_ERROR([cannot find ar in your PATH, no idea how to make a library])
414 fp_prog_ar=$fp_prog_ar_raw
415 case $HostPlatform in
416 *mingw32) if test x${OSTYPE} != xmsys; then
417 fp_prog_ar="`cygpath -w ${fp_prog_ar_raw} | sed -e 's@\\\\@/@g'`"
418 AC_MSG_NOTICE([normalized ar command to $fp_prog_ar])
427 # Sets fp_prog_ar_is_gnu to yes or no, depending on whether it is GNU ar or not.
428 AC_DEFUN([FP_PROG_AR_IS_GNU],
429 [AC_REQUIRE([FP_PROG_AR])
430 AC_CACHE_CHECK([whether $fp_prog_ar_raw is GNU ar], [fp_cv_prog_ar_is_gnu],
431 [if $fp_prog_ar_raw --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
432 fp_cv_prog_ar_is_gnu=yes
434 fp_cv_prog_ar_is_gnu=no
436 fp_prog_ar_is_gnu=$fp_cv_prog_ar_is_gnu
437 ])# FP_PROG_AR_IS_GNU
442 # Sets fp_prog_ar_args to the arguments for ar and the output variable ArCmd
443 # to a non-Cygwin invocation of ar including these arguments.
444 AC_DEFUN([FP_PROG_AR_ARGS],
445 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
446 AC_CACHE_CHECK([for ar arguments], [fp_cv_prog_ar_args],
448 # GNU ar needs special treatment: it appears to have problems with
449 # object files with the same name if you use the 's' modifier, but
450 # simple 'ar q' works fine, and doesn't need a separate ranlib.
451 if test $fp_prog_ar_is_gnu = yes; then
452 fp_cv_prog_ar_args="q"
455 for fp_var in clqsZ clqs cqs clq cq ; do
457 if $fp_prog_ar_raw $fp_var conftest.a conftest.dummy > /dev/null 2> /dev/null; then
458 fp_cv_prog_ar_args=$fp_var
463 if test -z "$fp_cv_prog_ar_args"; then
464 AC_MSG_ERROR([cannot figure out how to use your $fp_prog_ar_raw])
467 fp_prog_ar_args=$fp_cv_prog_ar_args
468 AC_SUBST([ArCmd], ["$fp_prog_ar $fp_prog_ar_args"])
473 # FP_PROG_AR_NEEDS_RANLIB
474 # -----------------------
475 # Sets the output variable RANLIB to "ranlib" if it is needed and found,
477 AC_DEFUN([FP_PROG_AR_NEEDS_RANLIB],
478 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
479 AC_REQUIRE([FP_PROG_AR_ARGS])
480 AC_REQUIRE([AC_PROG_CC])
481 AC_CACHE_CHECK([whether ranlib is needed], [fp_cv_prog_ar_needs_ranlib],
482 [if test $fp_prog_ar_is_gnu = yes; then
483 fp_cv_prog_ar_needs_ranlib=no
484 elif echo $TargetPlatform | grep "^.*-apple-darwin$" > /dev/null 2> /dev/null; then
485 # It's quite tedious to check for Apple's crazy timestamps in .a files,
487 fp_cv_prog_ar_needs_ranlib=yes
488 elif echo $fp_prog_ar_args | grep "s" > /dev/null 2> /dev/null; then
489 fp_cv_prog_ar_needs_ranlib=no
491 fp_cv_prog_ar_needs_ranlib=yes
493 if test $fp_cv_prog_ar_needs_ranlib = yes; then
499 ])# FP_PROG_AR_NEEDS_RANLIB
502 # FP_PROG_AR_SUPPORTS_INPUT
503 # -------------------------
504 # Sets the output variable ArSupportsInput to "-input" or "", depending on
505 # whether ar supports -input flag is supported or not.
506 AC_DEFUN([FP_PROG_AR_SUPPORTS_INPUT],
507 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
508 AC_REQUIRE([FP_PROG_AR_ARGS])
509 AC_CACHE_CHECK([whether $fp_prog_ar_raw supports -input], [fp_cv_prog_ar_supports_input],
510 [fp_cv_prog_ar_supports_input=no
511 if test $fp_prog_ar_is_gnu = no; then
514 if FP_EVAL_STDERR([$fp_prog_ar_raw $fp_prog_ar_args conftest.a -input conftest.lst]) >/dev/null; then
515 test -s conftest.err || fp_cv_prog_ar_supports_input=yes
519 if test $fp_cv_prog_ar_supports_input = yes; then
520 ArSupportsInput="-input"
524 AC_SUBST([ArSupportsInput])
525 ])# FP_PROG_AR_SUPPORTS_INPUT
529 dnl AC_SHEBANG_PERL - can we she-bang perl?
531 AC_DEFUN([FPTOOLS_SHEBANG_PERL],
532 [AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
537 (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
538 if test $? -ne 69; then
539 fptools_cv_shebang_perl=yes
541 fptools_cv_shebang_perl=no
549 # Extra testing of the result AC_PROG_CC, testing the gcc version no. Sets the
550 # output variables HaveGcc and GccVersion.
551 AC_DEFUN([FP_HAVE_GCC],
552 [AC_REQUIRE([AC_PROG_CC])
553 if test -z "$GCC"; then
558 if test "$fp_have_gcc" = "NO" -a -d $srcdir/ghc; then
559 AC_MSG_ERROR([gcc is required])
561 AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
562 [if test "$fp_have_gcc" = "YES"; then
563 fp_cv_gcc_version="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [[^0-9]]*\([[0-9.]]*\).*/\1/g'`"
564 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.0],
565 [AC_MSG_ERROR([Need at least gcc version 3.0 (3.4+ recommended)])])
566 # See #2770: gcc 2.95 doesn't work any more, apparently. There probably
567 # isn't a very good reason for that, but for now just make configure
570 fp_cv_gcc_version="not-installed"
573 AC_SUBST([HaveGcc], [$fp_have_gcc])
574 AC_SUBST([GccVersion], [$fp_cv_gcc_version])
577 AC_DEFUN([FP_MINGW_GCC],
580 mingw*) AC_MSG_CHECKING([whether $CC is a mingw gcc])
581 if $CC -v 2>&1 | grep mingw >/dev/null; then
585 AC_MSG_ERROR([Please use --with-gcc to specify a mingw gcc])
591 dnl Small feature test for perl version. Assumes PerlCmd
592 dnl contains path to perl binary.
594 dnl (Perl versions prior to v5.6 does not contain the string "v5";
595 dnl instead they display version strings such as "version 5.005".)
597 AC_DEFUN([FPTOOLS_CHECK_PERL_VERSION],
598 [$PerlCmd -v >conftest.out 2>&1
599 if grep "v5" conftest.out >/dev/null 2>&1; then
602 AC_MSG_ERROR([your version of perl probably won't work, try upgrading it.])
608 # FP_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR,
609 # [VALUE-IF-NOT-FOUND], [PATH], [REJECT])
610 # -----------------------------------------------------
611 # HACK: A small wrapper around AC_CHECK_PROG, setting VARIABLE to the full path
612 # of PROG-TO-CHECK-FOR when found.
613 AC_DEFUN([FP_CHECK_PROG],
614 [AC_CHECK_PROG([$1], [$2], [$as_dir/$ac_word$ac_exec_ext], [$3], [$4], [$5])][]dnl
620 # Find a non-WinDoze version of the "find" utility.
621 AC_DEFUN([FP_PROG_FIND],
622 [AC_PATH_PROGS([fp_prog_find], [gfind find], find)
623 echo foo > conftest.txt
624 $fp_prog_find conftest.txt -print > conftest.out 2>&1
625 if grep '^conftest.txt$' conftest.out > /dev/null 2>&1 ; then
626 # OK, looks like a real "find".
627 case $HostPlatform in
629 if test x${OSTYPE} != xmsys
631 fp_prog_find="`cygpath --mixed ${fp_prog_find}`"
632 AC_MSG_NOTICE([normalized find command to $fp_prog_find])
636 FindCmd="$fp_prog_find"
638 # Found a poor WinDoze version of "find", ignore it.
639 AC_MSG_WARN([$fp_prog_find looks like a non-*nix find, ignoring it])
640 FP_CHECK_PROG([FindCmd], [find], [], [], [$fp_prog_find])
642 rm -f conftest.txt conftest.out
643 AC_SUBST([FindCmd])[]dnl
649 # Find a Unix-like sort
650 AC_DEFUN([FP_PROG_SORT],
651 [AC_PATH_PROG([fp_prog_sort], [sort])
652 echo conwip > conftest.txt
653 $fp_prog_sort -f conftest.txt > conftest.out 2>&1
654 if grep 'conwip' conftest.out > /dev/null 2>&1 ; then
656 SortCmd="$fp_prog_sort"
658 # Summink else..pick next one.
659 AC_MSG_WARN([$fp_prog_sort looks like a non-*nix sort, ignoring it])
660 FP_CHECK_PROG([SortCmd], [sort], [], [], [$fp_prog_sort])
662 rm -f conftest.txt conftest.out
663 AC_SUBST([SortCmd])[]dnl
667 dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the
668 dnl values of the second argument to the result of running
669 dnl the commands given by the third. It does not cache its
670 dnl result, so it is suitable for checks which should be
673 AC_DEFUN([FPTOOLS_NOCACHE_CHECK],
674 [AC_MSG_CHECKING([$1])
676 AC_MSG_RESULT([$][$2])
680 dnl FPTOOLS_GHC_VERSION(version)
681 dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
682 dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
684 dnl Test for version of installed ghc. Uses $GHC.
685 dnl [original version pinched from c2hs]
687 AC_DEFUN([FPTOOLS_GHC_VERSION],
688 [FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
689 ["${WithGhc-ghc}" --version > conftestghc 2>&1
690 cat conftestghc >&AS_MESSAGE_LOG_FD
691 #Useless Use Of cat award...
692 fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'`
694 if test "[$]fptools_version_of_ghc" = ""
696 fptools_version_of_ghc='unknown'
698 fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'`
699 fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
700 fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'`
702 if test "[$]fptools_version_of_ghc[_pl]" = ""
704 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
705 fptools_version_of_ghc[_pl]="0"
707 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
711 [$1]="[$]fptools_version_of_ghc[_all]"
713 [$1]="[$]fptools_version_of_ghc[_major]"
714 [$2]="[$]fptools_version_of_ghc[_minor]"
716 [$1]="[$]fptools_version_of_ghc[_major]"
717 [$2]="[$]fptools_version_of_ghc[_minor]"
718 [$3]="[$]fptools_version_of_ghc[_pl]"
720 [$1]="[$]fptools_version_of_ghc[_all]"
721 [$2]="[$]fptools_version_of_ghc[_major]"
722 [$3]="[$]fptools_version_of_ghc[_minor]"
723 [$4]="[$]fptools_version_of_ghc[_pl]"
729 # FP_CHECK_FUNC(FUNCTION, PROLOGUE, BODY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
730 # ---------------------------------------------------------------------------------
731 # A variant of AC_CHECK_FUNCS, limited to a single FUNCTION, but with the
732 # additional flexibility of specifying the PROLOGUE and BODY.
733 AC_DEFUN([FP_CHECK_FUNC],
734 [AS_VAR_PUSHDEF([fp_func], [fp_cv_func_$1])dnl
735 AC_CACHE_CHECK([for $1], fp_func,
736 [AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])],
737 [AS_VAR_SET(fp_func, yes)],
738 [AS_VAR_SET(fp_func, no)])])
739 AS_IF([test AS_VAR_GET(fp_func) = yes],
740 [AC_DEFINE(AS_TR_CPP(HAVE_$1), [1],
741 [Define to 1 if you have the `]$1[' function.]) $4],
743 AS_VAR_POPDEF([fp_func])dnl
749 # Generates a DocBook XML V4.2 document in conftest.xml.
751 # It took a lot of experimentation to find a document that will cause
752 # xsltproc to fail with an error code when the relevant
753 # stylesheets/DTDs are not found. I couldn't make xsltproc fail with
754 # a single-file document, it seems a multi-file document is needed.
757 AC_DEFUN([FP_GEN_DOCBOOK_XML],
758 [rm -f conftest.xml conftest-book.xml
759 cat > conftest.xml << EOF
760 <?xml version="1.0" encoding="iso-8859-1"?>
761 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
762 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [[
763 <!ENTITY conftest-book SYSTEM "conftest-book.xml">
769 cat >conftest-book.xml << EOF
770 <?xml version="1.0" encoding="iso-8859-1"?>
771 <title>A DocBook “Test Document”</title>
772 <chapter id="id-one">
773 <title>A Chapter Title</title>
774 <para>This is a paragraph, referencing <xref linkend="id-two"/>.</para>
776 <chapter id="id-two">
777 <title>Another Chapter Title</title>
778 <para>This is another paragraph, referencing <xref linkend="id-one"/>.</para>
781 ]) # FP_GEN_DOCBOOK_XML
786 # Sets the output variable DblatexCmd to the full path of dblatex,
787 # which we use for building PDF and PS docs.
788 # DblatexCmd is empty if dblatex could not be found.
789 AC_DEFUN([FP_PROG_DBLATEX],
790 [AC_PATH_PROG([DblatexCmd], [dblatex])
791 if test -z "$DblatexCmd"; then
792 AC_MSG_WARN([cannot find dblatex in your PATH, you will not be able to build the PDF and PS documentation])
799 # Sets the output variable XsltprocCmd to the full path of the XSLT processor
800 # xsltproc. XsltprocCmd is empty if xsltproc could not be found.
801 AC_DEFUN([FP_PROG_XSLTPROC],
802 [AC_PATH_PROG([XsltprocCmd], [xsltproc])
803 if test -z "$XsltprocCmd"; then
804 AC_MSG_WARN([cannot find xsltproc in your PATH, you will not be able to build the HTML documentation])
810 # ----------------------------
811 # Check that we can process a DocBook XML document to HTML using xsltproc.
812 AC_DEFUN([FP_DOCBOOK_XSL],
813 [AC_REQUIRE([FP_PROG_XSLTPROC])dnl
814 if test -n "$XsltprocCmd"; then
815 AC_CACHE_CHECK([for DocBook XSL stylesheet], fp_cv_dir_docbook_xsl,
817 fp_cv_dir_docbook_xsl=no
818 if $XsltprocCmd --nonet http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl conftest.xml > /dev/null 2>&1; then
819 fp_cv_dir_docbook_xsl=yes
823 if test x"$fp_cv_dir_docbook_xsl" = xno; then
824 AC_MSG_WARN([cannot find DocBook XSL stylesheets, you will not be able to build the documentation])
829 AC_SUBST([HAVE_DOCBOOK_XSL])
835 # Sets the output variable XmllintCmd to the full path of the XSLT processor
836 # xmllint. XmllintCmd is empty if xmllint could not be found.
837 AC_DEFUN([FP_PROG_XMLLINT],
838 [AC_PATH_PROG([XmllintCmd], [xmllint])
839 if test -z "$XmllintCmd"; then
840 AC_MSG_WARN([cannot find xmllint in your PATH, you will not be able to validate your documentation])
845 # FP_CHECK_DOCBOOK_DTD
846 # --------------------
847 AC_DEFUN([FP_CHECK_DOCBOOK_DTD],
848 [AC_REQUIRE([FP_PROG_XMLLINT])dnl
849 if test -n "$XmllintCmd"; then
850 AC_MSG_CHECKING([for DocBook DTD])
852 if $XmllintCmd --nonet --valid --noout conftest.xml ; then
855 AC_MSG_RESULT([failed])
856 AC_MSG_WARN([cannot find a DTD for DocBook XML V4.2, you will not be able to validate your documentation])
857 AC_MSG_WARN([check your XML_CATALOG_FILES environment variable and/or /etc/xml/catalog])
861 ])# FP_CHECK_DOCBOOK_DTD
866 # Generates a formatting objects document in conftest.fo.
867 AC_DEFUN([FP_GEN_FO],
869 cat > conftest.fo << EOF
870 <?xml version="1.0"?>
871 <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
872 <fo:layout-master-set>
873 <fo:simple-page-master master-name="blank">
875 </fo:simple-page-master>
876 </fo:layout-master-set>
877 <fo:page-sequence master-reference="blank">
878 <fo:flow flow-name="xsl-region-body">
891 # Set the output variable 'FopCmd' to the first working 'fop' in the current
892 # 'PATH'. Note that /usr/bin/fop is broken in SuSE 9.1 (unpatched), so try
893 # /usr/share/fop/fop.sh in that case (or no 'fop'), too.
894 AC_DEFUN([FP_PROG_FOP],
895 [AC_PATH_PROGS([FopCmd1], [fop fop.sh])
896 if test -n "$FopCmd1"; then
897 AC_CACHE_CHECK([for $FopCmd1 usability], [fp_cv_fop_usability],
899 if "$FopCmd1" -fo conftest.fo -ps conftest.ps > /dev/null 2>&1; then
900 fp_cv_fop_usability=yes
902 fp_cv_fop_usability=no
905 if test x"$fp_cv_fop_usability" = xyes; then
909 if test -z "$FopCmd"; then
910 AC_PATH_PROGS([FopCmd2], [fop.sh], , [/usr/share/fop])
919 # Sets the output variable HstagsCmd to the full Haskell tags program path.
920 # HstagsCmd is empty if no such program could be found.
921 AC_DEFUN([FP_PROG_HSTAGS],
922 [AC_PATH_PROG([HstagsCmd], [hasktags])
923 if test -z "$HstagsCmd"; then
924 AC_MSG_WARN([cannot find hasktags in your PATH, you will not be able to build the tags])
931 # Try to find a ghc-pkg matching the ghc mentioned in the environment variable
932 # WithGhc. If the latter is unset or no matching ghc-pkg can be found, try to
933 # find a plain ghc-pkg. Sets the output variable GhcPkgCmd.
934 AC_DEFUN([FP_PROG_GHC_PKG],
935 [AC_CACHE_CHECK([for ghc-pkg matching $WithGhc], fp_cv_matching_ghc_pkg,
936 [fp_ghc_pkg_guess=`echo $WithGhc | sed 's,ghc\(@<:@^/\\@:>@*\)$,ghc-pkg\1,'`
937 if "$fp_ghc_pkg_guess" -l > /dev/null 2>&1; then
938 fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
939 elif "$fp_ghc_pkg_guess" list > /dev/null 2>&1; then
940 # from 6.10, ghc-pkg doesn't support the old -l syntax any more
941 fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
943 fp_cv_matching_ghc_pkg=no
945 if test x"$fp_cv_matching_ghc_pkg" = xno; then
946 AC_PATH_PROG([GhcPkgCmd], [ghc-pkg])
948 GhcPkgCmd=$fp_cv_matching_ghc_pkg
949 fi])# FP_PROG_GHC_PKG
954 # Determine which extra flags we need to pass gcc when we invoke it
955 # to compile .hc code.
957 # Some OSs (Mandrake Linux, in particular) configure GCC with
958 # -momit-leaf-frame-pointer on by default. If this is the case, we
959 # need to turn it off for mangling to work. The test is currently a
960 # bit crude, using only the version number of gcc.
962 # -fwrapv is needed for gcc to emit well-behaved code in the presence of
963 # integer wrap around. (Trac #952)
965 # -fno-unit-at-a-time or -fno-toplevel-reoder is necessary to avoid gcc
966 # reordering things in the module and confusing the manger and/or splitter.
969 AC_DEFUN([FP_GCC_EXTRA_FLAGS],
970 [AC_REQUIRE([FP_HAVE_GCC])
971 AC_CACHE_CHECK([for extra options to pass gcc when compiling via C], [fp_cv_gcc_extra_opts],
972 [fp_cv_gcc_extra_opts=
973 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
974 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fwrapv"],
976 case $TargetPlatform in
978 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.2],
979 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -mno-omit-leaf-frame-pointer"],
981 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
982 [FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [4.2],
983 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
984 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-unit-at-a-time"]
989 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [4.2],
990 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
995 AC_SUBST([GccExtraViaCOpts],$fp_cv_gcc_extra_opts)
999 # FP_SETUP_PROJECT_VERSION
1000 # ---------------------
1001 AC_DEFUN([FP_SETUP_PROJECT_VERSION],
1003 if test "$RELEASE" = "NO"; then
1004 AC_MSG_CHECKING([for GHC version date])
1005 if test -f VERSION_DATE; then
1006 PACKAGE_VERSION=${PACKAGE_VERSION}.`cat VERSION_DATE`
1007 AC_MSG_RESULT(given $PACKAGE_VERSION)
1008 elif test -d .git; then
1010 ver_date=`git log -n 1 --date=short --pretty=format:%ci | sed "s/^.*\([0-9][0-9][0-9][0-9]\)-\([0-9][0-9]\)-\([0-9][0-9]\).*$/\1\2\3/"`
1011 if echo $ver_date | grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$' 2>&1 >/dev/null; then true; else
1012 changequote([, ])dnl
1013 AC_MSG_ERROR([failed to detect version date: check that git is in your path])
1015 PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
1016 AC_MSG_RESULT(inferred $PACKAGE_VERSION)
1017 elif test -d _darcs; then
1018 # TODO: Remove this branch after conversion to Git
1020 ver_date=`darcs changes --quiet --no-summary --xml | head -500 | grep 'date=' | sed "s/^.*date='\([0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]\).*$/\1/g" | ${SortCmd} -n | tail -1`
1021 if echo $ver_date | grep '^[0-9][0-9][0-9][0-9][0-9][0-9][0-9][0-9]$' 2>&1 >/dev/null; then true; else
1022 changequote([, ])dnl
1023 AC_MSG_ERROR([failed to detect version date: check that darcs is in your path])
1025 PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
1026 AC_MSG_RESULT(inferred $PACKAGE_VERSION)
1027 elif test -f VERSION; then
1028 PACKAGE_VERSION=`cat VERSION`
1029 AC_MSG_RESULT(given $PACKAGE_VERSION)
1031 AC_MSG_WARN([cannot determine snapshot version: no .git or _darcs directory and no VERSION file])
1036 AC_SUBST([ProjectName], [$PACKAGE_NAME])
1037 AC_SUBST([ProjectVersion], [$PACKAGE_VERSION])
1039 # Split PACKAGE_VERSION into (possibly empty) parts
1040 VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
1041 VERSION_TMP=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
1042 VERSION_MINOR=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
1043 ProjectPatchLevel=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
1045 # Calculate project version as an integer, using 2 digits for minor version
1046 case $VERSION_MINOR in
1047 ?) ProjectVersionInt=${VERSION_MAJOR}0${VERSION_MINOR} ;;
1048 ??) ProjectVersionInt=${VERSION_MAJOR}${VERSION_MINOR} ;;
1049 *) AC_MSG_ERROR([bad minor version in $PACKAGE_VERSION]) ;;
1051 AC_SUBST([ProjectVersionInt])
1053 # The project patchlevel is zero unless stated otherwise
1054 test -z "$ProjectPatchLevel" && ProjectPatchLevel=0
1056 # Remove dots from the patch level; this allows us to have versions like 6.4.1.20050508
1057 ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'`
1059 AC_SUBST([ProjectPatchLevel])
1060 ])# FP_SETUP_PROJECT_VERSION
1063 # Check for a working timer_create(). We need a pretty detailed check
1064 # here, because there exist partially-working implementations of
1065 # timer_create() in certain versions of Linux (see bug #1933).
1067 AC_DEFUN([FP_CHECK_TIMER_CREATE],
1068 [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)],
1069 [fptools_cv_timer_create_works],
1072 #ifdef HAVE_STDLIB_H
1078 #ifdef HAVE_SIGNAL_H
1081 #ifdef HAVE_UNISTD_H
1085 static volatile int tock = 0;
1086 static void handler(int i)
1091 static void timeout(int i)
1093 // timer_settime() has been known to hang, so just in case
1094 // we install a 1-second timeout (see #2257)
1098 int main(int argc, char *argv[])
1103 struct itimerspec it;
1104 struct sigaction action;
1107 ev.sigev_notify = SIGEV_SIGNAL;
1108 ev.sigev_signo = SIGVTALRM;
1110 action.sa_handler = handler;
1111 action.sa_flags = 0;
1112 sigemptyset(&action.sa_mask);
1113 if (sigaction(SIGVTALRM, &action, NULL) == -1) {
1114 fprintf(stderr,"SIGVTALRM problem\n");
1118 action.sa_handler = timeout;
1119 action.sa_flags = 0;
1120 sigemptyset(&action.sa_mask);
1121 if (sigaction(SIGALRM, &action, NULL) == -1) {
1122 fprintf(stderr,"SIGALRM problem\n");
1127 if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) {
1128 fprintf(stderr,"No CLOCK_PROCESS_CPUTIME_ID timer\n");
1132 it.it_value.tv_sec = 0;
1133 it.it_value.tv_nsec = 1;
1134 it.it_interval = it.it_value;
1135 if (timer_settime(timer, 0, &it, NULL) != 0) {
1136 fprintf(stderr,"settime problem\n");
1142 for(n = 3; n < 20000; n++){
1143 for(m = 2; m <= n/2; m++){
1144 if (!(n%m)) count++;
1151 fprintf(stderr,"no CLOCK_PROCESS_CPUTIME_ID signal\n");
1155 timer_delete(timer);
1157 if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) {
1158 fprintf(stderr,"No CLOCK_REALTIME timer\n");
1162 it.it_value.tv_sec = 0;
1163 it.it_value.tv_nsec = 1000000;
1164 it.it_interval = it.it_value;
1165 if (timer_settime(timer, 0, &it, NULL) != 0) {
1166 fprintf(stderr,"settime problem\n");
1175 fprintf(stderr,"no CLOCK_REALTIME signal\n");
1179 timer_delete(timer);
1184 [fptools_cv_timer_create_works=yes],
1185 [fptools_cv_timer_create_works=no])
1187 case $fptools_cv_timer_create_works in
1188 yes) AC_DEFINE([USE_TIMER_CREATE], 1,
1189 [Define to 1 if we can use timer_create(CLOCK_PROCESS_CPUTIME_ID,...)]);;
1195 AC_DEFUN([FP_ARG_GMP],
1197 AC_ARG_WITH([gmp-includes],
1198 [AC_HELP_STRING([--with-gmp-includes],
1199 [directory containing gmp.h])],
1200 [gmp_includes=$withval],
1201 [gmp_includes=NONE])
1203 AC_ARG_WITH([gmp-libraries],
1204 [AC_HELP_STRING([--with-gmp-libraries],
1205 [directory containing gmp library])],
1206 [gmp_libraries=$withval],
1207 [gmp_libraries=NONE])
1210 AC_DEFUN([CHECK_GMP],
1211 [AC_REQUIRE([AC_PROG_CPP])
1212 AC_REQUIRE([AC_PROG_CC])
1215 # FP_CHECK_MACOSX_DEPLOYMENT_TARGET
1216 # ---------------------------------
1217 AC_DEFUN([FP_CHECK_MACOSX_DEPLOYMENT_TARGET],
1219 if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple"; then
1220 AC_MSG_CHECKING([Mac OS X deployment target])
1221 case $FP_MACOSX_DEPLOYMENT_TARGET in
1223 10.4) MACOSX_DEPLOYMENT_VERSION=10.4
1224 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX10.4u.sdk
1226 10.4u) MACOSX_DEPLOYMENT_VERSION=10.4
1227 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX10.4u.sdk
1229 *) MACOSX_DEPLOYMENT_VERSION=$FP_MACOSX_DEPLOYMENT_TARGET
1230 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX${FP_MACOSX_DEPLOYMENT_TARGET}.sdk
1233 if test "x$FP_MACOSX_DEPLOYMENT_TARGET" = "xnone"; then
1236 if test ! -d $MACOSX_DEPLOYMENT_SDK; then
1237 AC_MSG_ERROR([Unknown deployment target $FP_MACOSX_DEPLOYMENT_TARGET])
1239 AC_MSG_RESULT([${MACOSX_DEPLOYMENT_VERSION} (${MACOSX_DEPLOYMENT_SDK})])
1244 # --------------------------------------------------------------
1245 # Calculate absolute path to build tree
1246 # --------------------------------------------------------------
1248 AC_DEFUN([FP_FIND_ROOT],[
1249 AC_MSG_CHECKING(for path to top of build tree)
1252 dnl make -C utils/ghc-pwd clean && make -C utils/ghc-pwd
1253 dnl except we don't want to have to know what make is called. Sigh.
1254 if test ! -f utils/ghc-pwd/ghc-pwd && test ! -f utils/ghc-pwd/ghc-pwd.exe; then
1260 $WithGhc -v0 --make ghc-pwd -o ghc-pwd
1264 hardtop=`utils/ghc-pwd/ghc-pwd`
1266 if ! test -d "$hardtop"; then
1267 AC_MSG_ERROR([cannot determine current directory])
1270 dnl Remove common automounter nonsense
1272 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|'`
1276 AC_MSG_RESULT(${hardtop})
1278 # We don't support building in directories with spaces.
1280 *' '*) AC_MSG_ERROR([
1281 The build system does not support building in a directory containing
1282 space characters. Suggestion: move the build tree somewhere else.])