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_ARG_WITH_PATH_GNU_PROG
48 # --------------------
51 # $1 = the command to look for
52 # $2 = the variable to set
54 AC_DEFUN([FP_ARG_WITH_PATH_GNU_PROG],
57 [AC_HELP_STRING([--with-$2=ARG],
58 [Use ARG as the path to $2 [default=autodetect]])],
60 if test "$HostOS" = "mingw32"
62 AC_MSG_WARN([Request to use $withval will be ignored])
68 if test "$HostOS" != "mingw32"
70 AC_PATH_PROG([$1], [$2])
73 AC_MSG_ERROR([cannot find $2 in your PATH, no idea how to link])
78 ]) # FP_ARG_WITH_PATH_GNU_PROG
81 # FP_PROG_CONTEXT_DIFF
82 # --------------------
83 # Figure out how to do context diffs. Sets the output variable ContextDiffCmd.
85 # Note: NeXTStep thinks diff'ing a file against itself is "trouble".
87 # Used by ghc, glafp-utils/ltx, and glafp-utils/runstdtest.
88 AC_DEFUN([FP_PROG_CONTEXT_DIFF],
89 [AC_CACHE_CHECK([for a working context diff], [fp_cv_context_diff],
93 for fp_var in '-U 1' '-u1' '-C 1' '-c1'
95 if diff $fp_var conftest1 conftest2 > /dev/null 2>&1; then
96 fp_cv_context_diff="diff $fp_var"
100 if test x"$fp_cv_context_diff" = xno; then
101 AC_MSG_ERROR([cannot figure out how to do context diffs])
103 AC_SUBST(ContextDiffCmd, [$fp_cv_context_diff])
104 ])# FP_PROG_CONTEXT_DIFF
107 # FP_COMPUTE_INT(EXPRESSION, VARIABLE, INCLUDES, IF-FAILS)
108 # --------------------------------------------------------
109 # Assign VARIABLE the value of the compile-time EXPRESSION using INCLUDES for
110 # compilation. Execute IF-FAILS when unable to determine the value. Works for
111 # cross-compilation, too.
113 # Implementation note: We are lazy and use an internal autoconf macro, but it
114 # is supported in autoconf versions 2.50 up to the actual 2.57, so there is
116 AC_DEFUN([FP_COMPUTE_INT],
117 [_AC_COMPUTE_INT([$1], [$2], [$3], [$4])[]dnl
121 # FP_CHECK_ALIGNMENT(TYPE, [IGNORED], [INCLUDES = DEFAULT-INCLUDES])
122 # ------------------------------------------------------------------
123 # A variation of AC_CHECK_SIZEOF for computing the alignment restrictions of a
124 # given type. Defines ALIGNMENT_TYPE.
125 AC_DEFUN([FP_CHECK_ALIGNMENT],
126 [AS_LITERAL_IF([$1], [],
127 [AC_FATAL([$0: requires literal arguments])])[]dnl
128 AC_CHECK_TYPE([$1], [], [], [$3])[]dnl
129 m4_pushdef([fp_Cache], [AS_TR_SH([fp_cv_alignment_$1])])[]dnl
130 AC_CACHE_CHECK([alignment of $1], [fp_Cache],
131 [if test "$AS_TR_SH([ac_cv_type_$1])" = yes; then
132 FP_COMPUTE_INT([(long) (&((struct { char c; $1 ty; } *)0)->ty)],
134 [AC_INCLUDES_DEFAULT([$3])],
135 [AC_MSG_ERROR([cannot compute alignment ($1)
136 See `config.log' for more details.], [77])])
140 AC_DEFINE_UNQUOTED(AS_TR_CPP(alignment_$1), $fp_Cache, [The alignment of a `$1'.])[]dnl
141 m4_popdef([fp_Cache])[]dnl
142 ])# FP_CHECK_ALIGNMENT
145 # FP_LEADING_UNDERSCORE
146 # ---------------------
147 # Test for determining whether symbol names have a leading underscore. We assume
148 # that they _haven't_ if anything goes wrong. Sets the output variable
149 # LeadingUnderscore to YES or NO and defines LEADING_UNDERSCORE correspondingly.
151 # Some nlist implementations seem to try to be compatible by ignoring a leading
152 # underscore sometimes (eg. FreeBSD). We therefore have to work around this by
153 # checking for *no* leading underscore first. Sigh. --SDM
155 # Similarly on OpenBSD, but this test doesn't help. -- dons
156 AC_DEFUN([FP_LEADING_UNDERSCORE],
157 [AC_CHECK_LIB([elf], [nlist], [LIBS="-lelf $LIBS"])
158 AC_CACHE_CHECK([leading underscore in symbol names], [fptools_cv_leading_underscore], [
159 # Hack!: nlist() under Digital UNIX insist on there being an _,
160 # but symbol table listings shows none. What is going on here?!?
162 # Another hack: cygwin doesn't come with nlist.h , so we hardwire
163 # the underscoredness of that "platform"
164 case $HostPlatform in
165 *openbsd*) # x86 openbsd is ELF from 3.4 >, meaning no leading uscore
167 i386-*2\.@<:@0-9@:>@ | i386-*3\.@<:@0-3@:>@ ) fptools_cv_leading_underscore=yes ;;
168 *) fptools_cv_leading_underscore=no ;;
170 alpha-dec-osf*) fptools_cv_leading_underscore=no;;
171 *cygwin32) fptools_cv_leading_underscore=yes;;
172 *mingw32) fptools_cv_leading_underscore=yes;;
174 # HACK: Apple doesn't seem to provide nlist in the 64-bit-libraries
175 x86_64-apple-darwin*) fptools_cv_leading_underscore=yes;;
177 *) AC_RUN_IFELSE([AC_LANG_SOURCE([[#ifdef HAVE_NLIST_H
179 struct nlist xYzzY1[] = {{"xYzzY1", 0},{0}};
180 struct nlist xYzzY2[] = {{"_xYzzY2", 0},{0}};
188 if(nlist(argv[0], xYzzY1) == 0 && xYzzY1[0].n_value != 0)
190 if(nlist(argv[0], xYzzY2) == 0 && xYzzY2[0].n_value != 0)
194 }]])],[fptools_cv_leading_underscore=yes],[fptools_cv_leading_underscore=no],[fptools_cv_leading_underscore=no])
197 AC_SUBST([LeadingUnderscore], [`echo $fptools_cv_leading_underscore | sed 'y/yesno/YESNO/'`])
198 if test x"$fptools_cv_leading_underscore" = xyes; then
199 AC_DEFINE([LEADING_UNDERSCORE], [1], [Define to 1 if C symbols have a leading underscore added by the compiler.])
200 fi])# FP_LEADING_UNDERSCORE
203 # FP_COMPARE_VERSIONS(VERSION1, TEST, VERSION2, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
204 # ----------------------------------------------------------------------------------
205 # Compare dotted version numbers VERSION1 and VERSION2 lexicographically according
206 # to TEST (one of -eq, -ne, -lt, -le, -gt, or -ge).
207 AC_DEFUN([FP_COMPARE_VERSIONS],
208 [fp_version1=$1; fp_version2=$3
209 fp_save_IFS=$IFS; IFS='.'
210 while test x"$fp_version1" != x || test x"$fp_version2" != x
213 set dummy $fp_version1; shift
215 test $[@%:@] = 0 || { fp_num1="[$]1"; shift; }
216 test x"$fp_num1" = x && fp_num1="0"
219 set dummy $fp_version2; shift
221 test $[@%:@] = 0 || { fp_num2="[$]1"; shift; }
222 test x"$fp_num2" = x && fp_num2="0"
225 test "$fp_num1" = "$fp_num2" || break;
228 AS_IF([test "$fp_num1" $2 "$fp_num2"], [$4], [$5])[]dnl
229 ])# FP_COMPARE_VERSIONS
233 dnl Check for GreenCard and version.
235 AC_DEFUN([FPTOOLS_GREENCARD],
237 AC_PATH_PROG(GreenCardCmd,greencard)
238 AC_CACHE_CHECK([for version of greencard], fptools_cv_greencard_version,
240 [if test x"$GreenCardCmd" != x; then
241 fptools_cv_greencard_version="`$GreenCardCmd --version |
242 grep 'version' | sed -e 's/greencard. version \([^ ]*\).*/\1/g'`"
244 fptools_cv_greencard_version=""
248 FP_COMPARE_VERSIONS([$fptools_cv_greencard_version],[-lt],[$1],
249 [AC_MSG_ERROR([greencard version $1 or later is required (found '$fptools_cv_greencard_version')])])[]dnl
250 GreenCardVersion=$fptools_cv_greencard_version
251 AC_SUBST(GreenCardVersion)
255 dnl Check for Happy and version. If we're building GHC, then we need
256 dnl at least Happy version 1.14. If there's no installed Happy, we look
257 dnl for a happy source tree and point the build system at that instead.
259 AC_DEFUN([FPTOOLS_HAPPY],
260 [AC_PATH_PROG(HappyCmd,happy,)
261 # Happy is passed to Cabal, so we need a native path
262 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
263 test "${OSTYPE}" != "msys" && \
264 test "${HappyCmd}" != ""
266 # Canonicalise to <drive>:/path/to/gcc
267 HappyCmd=`cygpath -m ${HappyCmd}`
268 AC_MSG_NOTICE([normalized happy command to $HappyCmd])
271 AC_CACHE_CHECK([for version of happy], fptools_cv_happy_version,
273 [if test x"$HappyCmd" != x; then
274 fptools_cv_happy_version=`"$HappyCmd" -v |
275 grep 'Happy Version' | sed -e 's/Happy Version \([^ ]*\).*/\1/g'` ;
277 fptools_cv_happy_version="";
281 if test ! -f compiler/parser/Parser.hs || test ! -f compiler/cmm/CmmParse.hs || test ! -f compiler/parser/ParserCore.hs
283 FP_COMPARE_VERSIONS([$fptools_cv_happy_version],[-lt],[1.16],
284 [AC_MSG_ERROR([Happy version 1.16 or later is required to compile GHC.])])[]
286 HappyVersion=$fptools_cv_happy_version;
287 AC_SUBST(HappyVersion)
291 dnl Check for Alex and version. If we're building GHC, then we need
292 dnl at least Alex version 2.0.1.
294 AC_DEFUN([FPTOOLS_ALEX],
296 AC_PATH_PROG(AlexCmd,alex,)
297 # Alex is passed to Cabal, so we need a native path
298 if test "x$HostPlatform" = "xi386-unknown-mingw32" && \
299 test "${OSTYPE}" != "msys" && \
300 test "${AlexCmd}" != ""
302 # Canonicalise to <drive>:/path/to/gcc
303 AlexCmd=`cygpath -m ${AlexCmd}`
306 AC_CACHE_CHECK([for version of alex], fptools_cv_alex_version,
308 [if test x"$AlexCmd" != x; then
309 fptools_cv_alex_version=`"$AlexCmd" -v |
310 grep 'Alex [Vv]ersion' | sed -e 's/Alex [Vv]ersion \([0-9\.]*\).*/\1/g'` ;
312 fptools_cv_alex_version="";
316 if test ! -f compiler/cmm/CmmLex.hs || test ! -f compiler/parser/Lexer.hs
318 FP_COMPARE_VERSIONS([$fptools_cv_alex_version],[-lt],[2.1.0],
319 [AC_MSG_ERROR([Alex version 2.1.0 or later is required to compile GHC.])])[]
321 AlexVersion=$fptools_cv_alex_version;
322 AC_SUBST(AlexVersion)
328 # Sets the output variable LdXFlag to -x if ld supports this flag, otherwise the
329 # variable's value is empty.
330 AC_DEFUN([FP_PROG_LD_X],
332 AC_CACHE_CHECK([whether ld understands -x], [fp_cv_ld_x],
333 [echo 'foo() {}' > conftest.c
334 ${CC-cc} -c conftest.c
335 if ${LdCmd} -r -x -o conftest2.o conftest.o > /dev/null 2>&1; then
341 if test "$fp_cv_ld_x" = yes; then
352 # Sets the output variable LdIsGNULd to YES or NO, depending on whether it is
354 AC_DEFUN([FP_PROG_LD_IS_GNU],
356 AC_CACHE_CHECK([whether ld is GNU ld], [fp_cv_gnu_ld],
357 [if ${LdCmd} --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
362 AC_SUBST([LdIsGNULd], [`echo $fp_cv_gnu_ld | sed 'y/yesno/YESNO/'`])
363 ])# FP_PROG_LD_IS_GNU
368 # Sets fp_prog_ar_raw to the full path of ar and fp_prog_ar to a non-Cygwin
369 # version of it. Exits if no ar can be found
370 AC_DEFUN([FP_PROG_AR],
371 [AC_PATH_PROG([fp_prog_ar_raw], [ar])
372 if test -z "$fp_prog_ar_raw"; then
373 AC_MSG_ERROR([cannot find ar in your PATH, no idea how to make a library])
375 fp_prog_ar=$fp_prog_ar_raw
376 case $HostPlatform in
377 *mingw32) if test x${OSTYPE} != xmsys; then
378 fp_prog_ar="`cygpath -w ${fp_prog_ar_raw} | sed -e 's@\\\\@/@g'`"
379 AC_MSG_NOTICE([normalized ar command to $fp_prog_ar])
388 # Sets fp_prog_ar_is_gnu to yes or no, depending on whether it is GNU ar or not.
389 AC_DEFUN([FP_PROG_AR_IS_GNU],
390 [AC_REQUIRE([FP_PROG_AR])
391 AC_CACHE_CHECK([whether $fp_prog_ar_raw is GNU ar], [fp_cv_prog_ar_is_gnu],
392 [if $fp_prog_ar_raw --version 2> /dev/null | grep "GNU" > /dev/null 2>&1; then
393 fp_cv_prog_ar_is_gnu=yes
395 fp_cv_prog_ar_is_gnu=no
397 fp_prog_ar_is_gnu=$fp_cv_prog_ar_is_gnu
398 ])# FP_PROG_AR_IS_GNU
403 # Sets fp_prog_ar_args to the arguments for ar and the output variable ArCmd
404 # to a non-Cygwin invocation of ar including these arguments.
405 AC_DEFUN([FP_PROG_AR_ARGS],
406 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
407 AC_CACHE_CHECK([for ar arguments], [fp_cv_prog_ar_args],
409 # GNU ar needs special treatment: it appears to have problems with
410 # object files with the same name if you use the 's' modifier, but
411 # simple 'ar q' works fine, and doesn't need a separate ranlib.
412 if test $fp_prog_ar_is_gnu = yes; then
413 fp_cv_prog_ar_args="q"
416 for fp_var in clqsZ clqs cqs clq cq ; do
418 if $fp_prog_ar_raw $fp_var conftest.a conftest.dummy > /dev/null 2> /dev/null; then
419 fp_cv_prog_ar_args=$fp_var
424 if test -z "$fp_cv_prog_ar_args"; then
425 AC_MSG_ERROR([cannot figure out how to use your $fp_prog_ar_raw])
428 fp_prog_ar_args=$fp_cv_prog_ar_args
429 AC_SUBST([ArCmd], ["$fp_prog_ar $fp_prog_ar_args"])
434 # FP_PROG_AR_NEEDS_RANLIB
435 # -----------------------
436 # Sets the output variable RANLIB to "ranlib" if it is needed and found,
438 AC_DEFUN([FP_PROG_AR_NEEDS_RANLIB],
439 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
440 AC_REQUIRE([FP_PROG_AR_ARGS])
441 AC_REQUIRE([AC_PROG_CC])
442 AC_CACHE_CHECK([whether ranlib is needed], [fp_cv_prog_ar_needs_ranlib],
443 [if test $fp_prog_ar_is_gnu = yes; then
444 fp_cv_prog_ar_needs_ranlib=no
445 elif echo $TargetPlatform | grep "^.*-apple-darwin$" > /dev/null 2> /dev/null; then
446 # It's quite tedious to check for Apple's crazy timestamps in .a files,
448 fp_cv_prog_ar_needs_ranlib=yes
449 elif echo $fp_prog_ar_args | grep "s" > /dev/null 2> /dev/null; then
450 fp_cv_prog_ar_needs_ranlib=no
452 fp_cv_prog_ar_needs_ranlib=yes
454 if test $fp_cv_prog_ar_needs_ranlib = yes; then
460 ])# FP_PROG_AR_NEEDS_RANLIB
463 # FP_PROG_AR_SUPPORTS_INPUT
464 # -------------------------
465 # Sets the output variable ArSupportsInput to "-input" or "", depending on
466 # whether ar supports -input flag is supported or not.
467 AC_DEFUN([FP_PROG_AR_SUPPORTS_INPUT],
468 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
469 AC_REQUIRE([FP_PROG_AR_ARGS])
470 AC_CACHE_CHECK([whether $fp_prog_ar_raw supports -input], [fp_cv_prog_ar_supports_input],
471 [fp_cv_prog_ar_supports_input=no
472 if test $fp_prog_ar_is_gnu = no; then
475 if FP_EVAL_STDERR([$fp_prog_ar_raw $fp_prog_ar_args conftest.a -input conftest.lst]) >/dev/null; then
476 test -s conftest.err || fp_cv_prog_ar_supports_input=yes
480 if test $fp_cv_prog_ar_supports_input = yes; then
481 ArSupportsInput="-input"
485 AC_SUBST([ArSupportsInput])
486 ])# FP_PROG_AR_SUPPORTS_INPUT
490 dnl AC_SHEBANG_PERL - can we she-bang perl?
492 AC_DEFUN([FPTOOLS_SHEBANG_PERL],
493 [AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
498 (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
499 if test $? -ne 69; then
500 fptools_cv_shebang_perl=yes
502 fptools_cv_shebang_perl=no
510 # Extra testing of the result AC_PROG_CC, testing the gcc version no. Sets the
511 # output variables HaveGcc and GccVersion.
512 AC_DEFUN([FP_HAVE_GCC],
513 [AC_REQUIRE([AC_PROG_CC])
514 if test -z "$GCC"; then
519 if test "$fp_have_gcc" = "NO" -a -d $srcdir/ghc; then
520 AC_MSG_ERROR([gcc is required])
523 AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
524 [if test "$fp_have_gcc" = "YES"; then
525 fp_cv_gcc_version="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [[^0-9]]*\([[0-9.]]*\).*/\1/g'`"
526 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.0],
527 [AC_MSG_ERROR([Need at least gcc version 3.0 (3.4+ recommended)])])
528 # See #2770: gcc 2.95 doesn't work any more, apparently. There probably
529 # isn't a very good reason for that, but for now just make configure
531 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.4], GccLT34=YES)
533 fp_cv_gcc_version="not-installed"
536 AC_SUBST([HaveGcc], [$fp_have_gcc])
537 AC_SUBST([GccVersion], [$fp_cv_gcc_version])
541 dnl Small feature test for perl version. Assumes PerlCmd
542 dnl contains path to perl binary.
544 dnl (Perl versions prior to v5.6 does not contain the string "v5";
545 dnl instead they display version strings such as "version 5.005".)
547 AC_DEFUN([FPTOOLS_CHECK_PERL_VERSION],
548 [$PerlCmd -v >conftest.out 2>&1
549 if grep "v5" conftest.out >/dev/null 2>&1; then
552 AC_MSG_ERROR([your version of perl probably won't work, try upgrading it.])
558 # FP_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR,
559 # [VALUE-IF-NOT-FOUND], [PATH], [REJECT])
560 # -----------------------------------------------------
561 # HACK: A small wrapper around AC_CHECK_PROG, setting VARIABLE to the full path
562 # of PROG-TO-CHECK-FOR when found.
563 AC_DEFUN([FP_CHECK_PROG],
564 [AC_CHECK_PROG([$1], [$2], [$as_dir/$ac_word$ac_exec_ext], [$3], [$4], [$5])][]dnl
570 # Find a non-WinDoze version of the "find" utility.
571 AC_DEFUN([FP_PROG_FIND],
572 [AC_PATH_PROGS([fp_prog_find], [gfind find], find)
573 echo foo > conftest.txt
574 $fp_prog_find conftest.txt -print > conftest.out 2>&1
575 if grep '^conftest.txt$' conftest.out > /dev/null 2>&1 ; then
576 # OK, looks like a real "find".
577 case $HostPlatform in
579 if test x${OSTYPE} != xmsys
581 fp_prog_find="`cygpath --mixed ${fp_prog_find}`"
582 AC_MSG_NOTICE([normalized find command to $fp_prog_find])
586 FindCmd="$fp_prog_find"
588 # Found a poor WinDoze version of "find", ignore it.
589 AC_MSG_WARN([$fp_prog_find looks like a non-*nix find, ignoring it])
590 FP_CHECK_PROG([FindCmd], [find], [], [], [$fp_prog_find])
592 rm -f conftest.txt conftest.out
593 AC_SUBST([FindCmd])[]dnl
599 # Find a Unix-like sort
600 AC_DEFUN([FP_PROG_SORT],
601 [AC_PATH_PROG([fp_prog_sort], [sort])
602 echo conwip > conftest.txt
603 $fp_prog_sort -f conftest.txt > conftest.out 2>&1
604 if grep 'conwip' conftest.out > /dev/null 2>&1 ; then
606 SortCmd="$fp_prog_sort"
608 # Summink else..pick next one.
609 AC_MSG_WARN([$fp_prog_sort looks like a non-*nix sort, ignoring it])
610 FP_CHECK_PROG([SortCmd], [sort], [], [], [$fp_prog_sort])
612 rm -f conftest.txt conftest.out
613 AC_SUBST([SortCmd])[]dnl
617 dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the
618 dnl values of the second argument to the result of running
619 dnl the commands given by the third. It does not cache its
620 dnl result, so it is suitable for checks which should be
623 AC_DEFUN([FPTOOLS_NOCACHE_CHECK],
624 [AC_MSG_CHECKING([$1])
626 AC_MSG_RESULT([$][$2])
630 dnl FPTOOLS_GHC_VERSION(version)
631 dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
632 dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
634 dnl Test for version of installed ghc. Uses $GHC.
635 dnl [original version pinched from c2hs]
637 AC_DEFUN([FPTOOLS_GHC_VERSION],
638 [FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
639 ["${WithGhc-ghc}" --version > conftestghc 2>&1
640 cat conftestghc >&AS_MESSAGE_LOG_FD
641 #Useless Use Of cat award...
642 fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'`
644 if test "[$]fptools_version_of_ghc" = ""
646 fptools_version_of_ghc='unknown'
648 fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'`
649 fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
650 fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'`
652 if test "[$]fptools_version_of_ghc[_pl]" = ""
654 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
655 fptools_version_of_ghc[_pl]="0"
657 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
661 [$1]="[$]fptools_version_of_ghc[_all]"
663 [$1]="[$]fptools_version_of_ghc[_major]"
664 [$2]="[$]fptools_version_of_ghc[_minor]"
666 [$1]="[$]fptools_version_of_ghc[_major]"
667 [$2]="[$]fptools_version_of_ghc[_minor]"
668 [$3]="[$]fptools_version_of_ghc[_pl]"
670 [$1]="[$]fptools_version_of_ghc[_all]"
671 [$2]="[$]fptools_version_of_ghc[_major]"
672 [$3]="[$]fptools_version_of_ghc[_minor]"
673 [$4]="[$]fptools_version_of_ghc[_pl]"
679 # FP_CHECK_FUNC(FUNCTION, PROLOGUE, BODY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
680 # ---------------------------------------------------------------------------------
681 # A variant of AC_CHECK_FUNCS, limited to a single FUNCTION, but with the
682 # additional flexibility of specifying the PROLOGUE and BODY.
683 AC_DEFUN([FP_CHECK_FUNC],
684 [AS_VAR_PUSHDEF([fp_func], [fp_cv_func_$1])dnl
685 AC_CACHE_CHECK([for $1], fp_func,
686 [AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])],
687 [AS_VAR_SET(fp_func, yes)],
688 [AS_VAR_SET(fp_func, no)])])
689 AS_IF([test AS_VAR_GET(fp_func) = yes],
690 [AC_DEFINE(AS_TR_CPP(HAVE_$1), [1],
691 [Define to 1 if you have the `]$1[' function.]) $4],
693 AS_VAR_POPDEF([fp_func])dnl
699 # Generates a DocBook XML V4.2 document in conftest.xml.
701 # It took a lot of experimentation to find a document that will cause
702 # xsltproc to fail with an error code when the relevant
703 # stylesheets/DTDs are not found. I couldn't make xsltproc fail with
704 # a single-file document, it seems a multi-file document is needed.
707 AC_DEFUN([FP_GEN_DOCBOOK_XML],
708 [rm -f conftest.xml conftest-book.xml
709 cat > conftest.xml << EOF
710 <?xml version="1.0" encoding="iso-8859-1"?>
711 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
712 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [[
713 <!ENTITY conftest-book SYSTEM "conftest-book.xml">
719 cat >conftest-book.xml << EOF
720 <?xml version="1.0" encoding="iso-8859-1"?>
721 <title>A DocBook “Test Document”</title>
722 <chapter id="id-one">
723 <title>A Chapter Title</title>
724 <para>This is a paragraph, referencing <xref linkend="id-two"/>.</para>
726 <chapter id="id-two">
727 <title>Another Chapter Title</title>
728 <para>This is another paragraph, referencing <xref linkend="id-one"/>.</para>
731 ]) # FP_GEN_DOCBOOK_XML
736 # Sets the output variable DblatexCmd to the full path of dblatex,
737 # which we use for building PDF and PS docs.
738 # DblatexCmd is empty if dblatex could not be found.
739 AC_DEFUN([FP_PROG_DBLATEX],
740 [AC_PATH_PROG([DblatexCmd], [dblatex])
741 if test -z "$DblatexCmd"; then
742 AC_MSG_WARN([cannot find dblatex in your PATH, you will not be able to build the PDF and PS documentation])
749 # Sets the output variable XsltprocCmd to the full path of the XSLT processor
750 # xsltproc. XsltprocCmd is empty if xsltproc could not be found.
751 AC_DEFUN([FP_PROG_XSLTPROC],
752 [AC_PATH_PROG([XsltprocCmd], [xsltproc])
753 if test -z "$XsltprocCmd"; then
754 AC_MSG_WARN([cannot find xsltproc in your PATH, you will not be able to build the HTML documentation])
760 # ----------------------------
761 # Check that we can process a DocBook XML document to HTML using xsltproc.
762 AC_DEFUN([FP_DOCBOOK_XSL],
763 [AC_REQUIRE([FP_PROG_XSLTPROC])dnl
764 if test -n "$XsltprocCmd"; then
765 AC_CACHE_CHECK([for DocBook XSL stylesheet], fp_cv_dir_docbook_xsl,
767 fp_cv_dir_docbook_xsl=no
768 if $XsltprocCmd --nonet http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl conftest.xml > /dev/null 2>&1; then
769 fp_cv_dir_docbook_xsl=yes
773 if test x"$fp_cv_dir_docbook_xsl" = xno; then
774 AC_MSG_WARN([cannot find DocBook XSL stylesheets, you will not be able to build the documentation])
779 AC_SUBST([HAVE_DOCBOOK_XSL])
785 # Sets the output variable XmllintCmd to the full path of the XSLT processor
786 # xmllint. XmllintCmd is empty if xmllint could not be found.
787 AC_DEFUN([FP_PROG_XMLLINT],
788 [AC_PATH_PROG([XmllintCmd], [xmllint])
789 if test -z "$XmllintCmd"; then
790 AC_MSG_WARN([cannot find xmllint in your PATH, you will not be able to validate your documentation])
795 # FP_CHECK_DOCBOOK_DTD
796 # --------------------
797 AC_DEFUN([FP_CHECK_DOCBOOK_DTD],
798 [AC_REQUIRE([FP_PROG_XMLLINT])dnl
799 if test -n "$XmllintCmd"; then
800 AC_MSG_CHECKING([for DocBook DTD])
802 if $XmllintCmd --nonet --valid --noout conftest.xml ; then
805 AC_MSG_RESULT([failed])
806 AC_MSG_WARN([cannot find a DTD for DocBook XML V4.2, you will not be able to validate your documentation])
807 AC_MSG_WARN([check your XML_CATALOG_FILES environment variable and/or /etc/xml/catalog])
811 ])# FP_CHECK_DOCBOOK_DTD
816 # Generates a formatting objects document in conftest.fo.
817 AC_DEFUN([FP_GEN_FO],
819 cat > conftest.fo << EOF
820 <?xml version="1.0"?>
821 <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
822 <fo:layout-master-set>
823 <fo:simple-page-master master-name="blank">
825 </fo:simple-page-master>
826 </fo:layout-master-set>
827 <fo:page-sequence master-reference="blank">
828 <fo:flow flow-name="xsl-region-body">
841 # Set the output variable 'FopCmd' to the first working 'fop' in the current
842 # 'PATH'. Note that /usr/bin/fop is broken in SuSE 9.1 (unpatched), so try
843 # /usr/share/fop/fop.sh in that case (or no 'fop'), too.
844 AC_DEFUN([FP_PROG_FOP],
845 [AC_PATH_PROGS([FopCmd1], [fop fop.sh])
846 if test -n "$FopCmd1"; then
847 AC_CACHE_CHECK([for $FopCmd1 usability], [fp_cv_fop_usability],
849 if "$FopCmd1" -fo conftest.fo -ps conftest.ps > /dev/null 2>&1; then
850 fp_cv_fop_usability=yes
852 fp_cv_fop_usability=no
855 if test x"$fp_cv_fop_usability" = xyes; then
859 if test -z "$FopCmd"; then
860 AC_PATH_PROGS([FopCmd2], [fop.sh], , [/usr/share/fop])
869 # Sets the output variable HstagsCmd to the full Haskell tags program path.
870 # HstagsCmd is empty if no such program could be found.
871 AC_DEFUN([FP_PROG_HSTAGS],
872 [AC_PATH_PROG([HstagsCmd], [hasktags])
873 if test -z "$HstagsCmd"; then
874 AC_MSG_WARN([cannot find hasktags in your PATH, you will not be able to build the tags])
881 # Try to find a ghc-pkg matching the ghc mentioned in the environment variable
882 # WithGhc. If the latter is unset or no matching ghc-pkg can be found, try to
883 # find a plain ghc-pkg. Sets the output variable GhcPkgCmd.
884 AC_DEFUN([FP_PROG_GHC_PKG],
885 [AC_CACHE_CHECK([for ghc-pkg matching $WithGhc], fp_cv_matching_ghc_pkg,
886 [fp_ghc_pkg_guess=`echo $WithGhc | sed 's,ghc\(@<:@^/\\@:>@*\)$,ghc-pkg\1,'`
887 if "$fp_ghc_pkg_guess" -l > /dev/null 2>&1; then
888 fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
889 elif "$fp_ghc_pkg_guess" list > /dev/null 2>&1; then
890 # from 6.10, ghc-pkg doesn't support the old -l syntax any more
891 fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
893 fp_cv_matching_ghc_pkg=no
895 if test x"$fp_cv_matching_ghc_pkg" = xno; then
896 AC_PATH_PROG([GhcPkgCmd], [ghc-pkg])
898 GhcPkgCmd=$fp_cv_matching_ghc_pkg
899 fi])# FP_PROG_GHC_PKG
904 # Determine which extra flags we need to pass gcc when we invoke it
905 # to compile .hc code.
907 # Some OSs (Mandrake Linux, in particular) configure GCC with
908 # -momit-leaf-frame-pointer on by default. If this is the case, we
909 # need to turn it off for mangling to work. The test is currently a
910 # bit crude, using only the version number of gcc.
912 # -fwrapv is needed for gcc to emit well-behaved code in the presence of
913 # integer wrap around. (Trac #952)
915 # -fno-unit-at-a-time or -fno-toplevel-reoder is necessary to avoid gcc
916 # reordering things in the module and confusing the manger and/or splitter.
919 AC_DEFUN([FP_GCC_EXTRA_FLAGS],
920 [AC_REQUIRE([FP_HAVE_GCC])
921 AC_CACHE_CHECK([for extra options to pass gcc when compiling via C], [fp_cv_gcc_extra_opts],
922 [fp_cv_gcc_extra_opts=
923 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
924 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fwrapv"],
926 case $TargetPlatform in
928 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.2],
929 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -mno-omit-leaf-frame-pointer"],
931 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
932 [FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [4.2],
933 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
934 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-unit-at-a-time"]
939 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [4.2],
940 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
945 AC_SUBST([GccExtraViaCOpts],$fp_cv_gcc_extra_opts)
949 # FP_SETUP_PROJECT_VERSION
950 # ---------------------
951 AC_DEFUN([FP_SETUP_PROJECT_VERSION],
953 if test "$RELEASE" = "NO"; then
954 AC_MSG_CHECKING([for GHC version date])
955 if test -f VERSION_DATE; then
956 PACKAGE_VERSION=${PACKAGE_VERSION}.`cat VERSION_DATE`
957 AC_MSG_RESULT(given $PACKAGE_VERSION)
958 elif test -d .git; then
960 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/"`
961 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
963 AC_MSG_ERROR([failed to detect version date: check that git is in your path])
965 PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
966 AC_MSG_RESULT(inferred $PACKAGE_VERSION)
967 elif test -d _darcs; then
968 # TODO: Remove this branch after conversion to Git
970 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`
971 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
973 AC_MSG_ERROR([failed to detect version date: check that darcs is in your path])
975 PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
976 AC_MSG_RESULT(inferred $PACKAGE_VERSION)
977 elif test -f VERSION; then
978 PACKAGE_VERSION=`cat VERSION`
979 AC_MSG_RESULT(given $PACKAGE_VERSION)
981 AC_MSG_WARN([cannot determine snapshot version: no .git or _darcs directory and no VERSION file])
986 AC_SUBST([ProjectName], [$PACKAGE_NAME])
987 AC_SUBST([ProjectVersion], [$PACKAGE_VERSION])
989 # Split PACKAGE_VERSION into (possibly empty) parts
990 VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
991 VERSION_TMP=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
992 VERSION_MINOR=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
993 ProjectPatchLevel=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
995 # Calculate project version as an integer, using 2 digits for minor version
996 case $VERSION_MINOR in
997 ?) ProjectVersionInt=${VERSION_MAJOR}0${VERSION_MINOR} ;;
998 ??) ProjectVersionInt=${VERSION_MAJOR}${VERSION_MINOR} ;;
999 *) AC_MSG_ERROR([bad minor version in $PACKAGE_VERSION]) ;;
1001 AC_SUBST([ProjectVersionInt])
1003 # The project patchlevel is zero unless stated otherwise
1004 test -z "$ProjectPatchLevel" && ProjectPatchLevel=0
1006 # Remove dots from the patch level; this allows us to have versions like 6.4.1.20050508
1007 ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'`
1009 AC_SUBST([ProjectPatchLevel])
1010 ])# FP_SETUP_PROJECT_VERSION
1013 # Check for a working timer_create(). We need a pretty detailed check
1014 # here, because there exist partially-working implementations of
1015 # timer_create() in certain versions of Linux (see bug #1933).
1017 AC_DEFUN([FP_CHECK_TIMER_CREATE],
1018 [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)],
1019 [fptools_cv_timer_create_works],
1022 #ifdef HAVE_STDLIB_H
1028 #ifdef HAVE_SIGNAL_H
1031 #ifdef HAVE_UNISTD_H
1035 static volatile int tock = 0;
1036 static void handler(int i)
1041 static void timeout(int i)
1043 // timer_settime() has been known to hang, so just in case
1044 // we install a 1-second timeout (see #2257)
1048 int main(int argc, char *argv[])
1053 struct itimerspec it;
1054 struct sigaction action;
1057 ev.sigev_notify = SIGEV_SIGNAL;
1058 ev.sigev_signo = SIGVTALRM;
1060 action.sa_handler = handler;
1061 action.sa_flags = 0;
1062 sigemptyset(&action.sa_mask);
1063 if (sigaction(SIGVTALRM, &action, NULL) == -1) {
1064 fprintf(stderr,"SIGVTALRM problem\n");
1068 action.sa_handler = timeout;
1069 action.sa_flags = 0;
1070 sigemptyset(&action.sa_mask);
1071 if (sigaction(SIGALRM, &action, NULL) == -1) {
1072 fprintf(stderr,"SIGALRM problem\n");
1077 if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) {
1078 fprintf(stderr,"No CLOCK_PROCESS_CPUTIME_ID timer\n");
1082 it.it_value.tv_sec = 0;
1083 it.it_value.tv_nsec = 1;
1084 it.it_interval = it.it_value;
1085 if (timer_settime(timer, 0, &it, NULL) != 0) {
1086 fprintf(stderr,"settime problem\n");
1092 for(n = 3; n < 20000; n++){
1093 for(m = 2; m <= n/2; m++){
1094 if (!(n%m)) count++;
1101 fprintf(stderr,"no CLOCK_PROCESS_CPUTIME_ID signal\n");
1105 timer_delete(timer);
1107 if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) {
1108 fprintf(stderr,"No CLOCK_REALTIME timer\n");
1112 it.it_value.tv_sec = 0;
1113 it.it_value.tv_nsec = 1000000;
1114 it.it_interval = it.it_value;
1115 if (timer_settime(timer, 0, &it, NULL) != 0) {
1116 fprintf(stderr,"settime problem\n");
1125 fprintf(stderr,"no CLOCK_REALTIME signal\n");
1129 timer_delete(timer);
1134 [fptools_cv_timer_create_works=yes],
1135 [fptools_cv_timer_create_works=no])
1137 case $fptools_cv_timer_create_works in
1138 yes) AC_DEFINE([USE_TIMER_CREATE], 1,
1139 [Define to 1 if we can use timer_create(CLOCK_PROCESS_CPUTIME_ID,...)]);;
1145 AC_DEFUN([FP_ARG_GMP],
1147 AC_ARG_WITH([gmp-includes],
1148 [AC_HELP_STRING([--with-gmp-includes],
1149 [directory containing gmp.h])],
1150 [gmp_includes=$withval],
1151 [gmp_includes=NONE])
1153 AC_ARG_WITH([gmp-libraries],
1154 [AC_HELP_STRING([--with-gmp-libraries],
1155 [directory containing gmp library])],
1156 [gmp_libraries=$withval],
1157 [gmp_libraries=NONE])
1160 AC_DEFUN([CHECK_GMP],
1161 [AC_REQUIRE([AC_PROG_CPP])
1162 AC_REQUIRE([AC_PROG_CC])
1165 # FP_CHECK_MACOSX_DEPLOYMENT_TARGET
1166 # ---------------------------------
1167 AC_DEFUN([FP_CHECK_MACOSX_DEPLOYMENT_TARGET],
1169 if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple"; then
1170 AC_MSG_CHECKING([Mac OS X deployment target])
1171 case $FP_MACOSX_DEPLOYMENT_TARGET in
1173 10.4) MACOSX_DEPLOYMENT_VERSION=10.4
1174 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX10.4u.sdk
1176 10.4u) MACOSX_DEPLOYMENT_VERSION=10.4
1177 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX10.4u.sdk
1179 *) MACOSX_DEPLOYMENT_VERSION=$FP_MACOSX_DEPLOYMENT_TARGET
1180 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX${FP_MACOSX_DEPLOYMENT_TARGET}.sdk
1183 if test "x$FP_MACOSX_DEPLOYMENT_TARGET" = "xnone"; then
1186 if test ! -d $MACOSX_DEPLOYMENT_SDK; then
1187 AC_MSG_ERROR([Unknown deployment target $FP_MACOSX_DEPLOYMENT_TARGET])
1189 AC_MSG_RESULT([${MACOSX_DEPLOYMENT_VERSION} (${MACOSX_DEPLOYMENT_SDK})])
1194 # --------------------------------------------------------------
1195 # Calculate absolute path to build tree
1196 # --------------------------------------------------------------
1198 AC_DEFUN([FP_FIND_ROOT],[
1199 AC_MSG_CHECKING(for path to top of build tree)
1202 dnl make -C utils/ghc-pwd clean && make -C utils/ghc-pwd
1203 dnl except we don't want to have to know what make is called. Sigh.
1204 if test ! -f utils/ghc-pwd/ghc-pwd && test ! -f utils/ghc-pwd/ghc-pwd.exe; then
1210 $WithGhc -v0 --make ghc-pwd -o ghc-pwd
1214 hardtop=`utils/ghc-pwd/ghc-pwd`
1216 if ! test -d "$hardtop"; then
1217 AC_MSG_ERROR([cannot determine current directory])
1220 dnl Remove common automounter nonsense
1222 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|'`
1226 AC_MSG_RESULT(${hardtop})
1228 # We don't support building in directories with spaces.
1230 *' '*) AC_MSG_ERROR([
1231 The build system does not support building in a directory containing
1232 space characters. Suggestion: move the build tree somewhere else.])