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], ["$fp_prog_ar"])
430 AC_SUBST([ArArgs], ["$fp_prog_ar_args"])
435 # FP_PROG_AR_NEEDS_RANLIB
436 # -----------------------
437 # Sets the output variable RANLIB to "ranlib" if it is needed and found,
439 AC_DEFUN([FP_PROG_AR_NEEDS_RANLIB],
440 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
441 AC_REQUIRE([FP_PROG_AR_ARGS])
442 AC_REQUIRE([AC_PROG_CC])
443 AC_CACHE_CHECK([whether ranlib is needed], [fp_cv_prog_ar_needs_ranlib],
444 [if test $fp_prog_ar_is_gnu = yes; then
445 fp_cv_prog_ar_needs_ranlib=no
446 elif echo $TargetPlatform | grep "^.*-apple-darwin$" > /dev/null 2> /dev/null; then
447 # It's quite tedious to check for Apple's crazy timestamps in .a files,
449 fp_cv_prog_ar_needs_ranlib=yes
450 elif echo $fp_prog_ar_args | grep "s" > /dev/null 2> /dev/null; then
451 fp_cv_prog_ar_needs_ranlib=no
453 fp_cv_prog_ar_needs_ranlib=yes
455 if test $fp_cv_prog_ar_needs_ranlib = yes; then
461 ])# FP_PROG_AR_NEEDS_RANLIB
464 # FP_PROG_AR_SUPPORTS_INPUT
465 # -------------------------
466 # Sets the output variable ArSupportsInput to "-input" or "", depending on
467 # whether ar supports -input flag is supported or not.
468 AC_DEFUN([FP_PROG_AR_SUPPORTS_INPUT],
469 [AC_REQUIRE([FP_PROG_AR_IS_GNU])
470 AC_REQUIRE([FP_PROG_AR_ARGS])
471 AC_CACHE_CHECK([whether $fp_prog_ar_raw supports -input], [fp_cv_prog_ar_supports_input],
472 [fp_cv_prog_ar_supports_input=no
473 if test $fp_prog_ar_is_gnu = no; then
476 if FP_EVAL_STDERR([$fp_prog_ar_raw $fp_prog_ar_args conftest.a -input conftest.lst]) >/dev/null; then
477 test -s conftest.err || fp_cv_prog_ar_supports_input=yes
481 if test $fp_cv_prog_ar_supports_input = yes; then
482 ArSupportsInput="-input"
486 AC_SUBST([ArSupportsInput])
487 ])# FP_PROG_AR_SUPPORTS_INPUT
491 dnl AC_SHEBANG_PERL - can we she-bang perl?
493 AC_DEFUN([FPTOOLS_SHEBANG_PERL],
494 [AC_CACHE_CHECK([if your perl works in shell scripts], fptools_cv_shebang_perl,
499 (SHELL=/bin/sh; export SHELL; ./conftest 69 > /dev/null)
500 if test $? -ne 69; then
501 fptools_cv_shebang_perl=yes
503 fptools_cv_shebang_perl=no
511 # Extra testing of the result AC_PROG_CC, testing the gcc version no. Sets the
512 # output variables HaveGcc and GccVersion.
513 AC_DEFUN([FP_HAVE_GCC],
514 [AC_REQUIRE([AC_PROG_CC])
515 if test -z "$GCC"; then
520 if test "$fp_have_gcc" = "NO" -a -d $srcdir/ghc; then
521 AC_MSG_ERROR([gcc is required])
524 AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
525 [if test "$fp_have_gcc" = "YES"; then
526 fp_cv_gcc_version="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [[^0-9]]*\([[0-9.]]*\).*/\1/g'`"
527 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.0],
528 [AC_MSG_ERROR([Need at least gcc version 3.0 (3.4+ recommended)])])
529 # See #2770: gcc 2.95 doesn't work any more, apparently. There probably
530 # isn't a very good reason for that, but for now just make configure
532 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.4], GccLT34=YES)
534 fp_cv_gcc_version="not-installed"
537 AC_SUBST([HaveGcc], [$fp_have_gcc])
538 AC_SUBST([GccVersion], [$fp_cv_gcc_version])
542 dnl Small feature test for perl version. Assumes PerlCmd
543 dnl contains path to perl binary.
545 dnl (Perl versions prior to v5.6 does not contain the string "v5";
546 dnl instead they display version strings such as "version 5.005".)
548 AC_DEFUN([FPTOOLS_CHECK_PERL_VERSION],
549 [$PerlCmd -v >conftest.out 2>&1
550 if grep "v5" conftest.out >/dev/null 2>&1; then
553 AC_MSG_ERROR([your version of perl probably won't work, try upgrading it.])
559 # FP_CHECK_PROG(VARIABLE, PROG-TO-CHECK-FOR,
560 # [VALUE-IF-NOT-FOUND], [PATH], [REJECT])
561 # -----------------------------------------------------
562 # HACK: A small wrapper around AC_CHECK_PROG, setting VARIABLE to the full path
563 # of PROG-TO-CHECK-FOR when found.
564 AC_DEFUN([FP_CHECK_PROG],
565 [AC_CHECK_PROG([$1], [$2], [$as_dir/$ac_word$ac_exec_ext], [$3], [$4], [$5])][]dnl
571 # Find a non-WinDoze version of the "find" utility.
572 AC_DEFUN([FP_PROG_FIND],
573 [AC_PATH_PROGS([fp_prog_find], [gfind find], find)
574 echo foo > conftest.txt
575 $fp_prog_find conftest.txt -print > conftest.out 2>&1
576 if grep '^conftest.txt$' conftest.out > /dev/null 2>&1 ; then
577 # OK, looks like a real "find".
578 case $HostPlatform in
580 if test x${OSTYPE} != xmsys
582 fp_prog_find="`cygpath --mixed ${fp_prog_find}`"
583 AC_MSG_NOTICE([normalized find command to $fp_prog_find])
587 FindCmd="$fp_prog_find"
589 # Found a poor WinDoze version of "find", ignore it.
590 AC_MSG_WARN([$fp_prog_find looks like a non-*nix find, ignoring it])
591 FP_CHECK_PROG([FindCmd], [find], [], [], [$fp_prog_find])
593 rm -f conftest.txt conftest.out
594 AC_SUBST([FindCmd])[]dnl
600 # Find a Unix-like sort
601 AC_DEFUN([FP_PROG_SORT],
602 [AC_PATH_PROG([fp_prog_sort], [sort])
603 echo conwip > conftest.txt
604 $fp_prog_sort -f conftest.txt > conftest.out 2>&1
605 if grep 'conwip' conftest.out > /dev/null 2>&1 ; then
607 SortCmd="$fp_prog_sort"
609 # Summink else..pick next one.
610 AC_MSG_WARN([$fp_prog_sort looks like a non-*nix sort, ignoring it])
611 FP_CHECK_PROG([SortCmd], [sort], [], [], [$fp_prog_sort])
613 rm -f conftest.txt conftest.out
614 AC_SUBST([SortCmd])[]dnl
618 dnl FPTOOLS_NOCACHE_CHECK prints a message, then sets the
619 dnl values of the second argument to the result of running
620 dnl the commands given by the third. It does not cache its
621 dnl result, so it is suitable for checks which should be
624 AC_DEFUN([FPTOOLS_NOCACHE_CHECK],
625 [AC_MSG_CHECKING([$1])
627 AC_MSG_RESULT([$][$2])
631 dnl FPTOOLS_GHC_VERSION(version)
632 dnl FPTOOLS_GHC_VERSION(major, minor [, patchlevel])
633 dnl FPTOOLS_GHC_VERSION(version, major, minor, patchlevel)
635 dnl Test for version of installed ghc. Uses $GHC.
636 dnl [original version pinched from c2hs]
638 AC_DEFUN([FPTOOLS_GHC_VERSION],
639 [FPTOOLS_NOCACHE_CHECK([version of ghc], [fptools_version_of_ghc],
640 ["${WithGhc-ghc}" --version > conftestghc 2>&1
641 cat conftestghc >&AS_MESSAGE_LOG_FD
642 #Useless Use Of cat award...
643 fptools_version_of_ghc=`cat conftestghc | sed -n -e 's/, patchlevel *\([[0-9]]\)/.\1/;s/.* version \([[0-9]][[0-9.]]*\).*/\1/p'`
645 if test "[$]fptools_version_of_ghc" = ""
647 fptools_version_of_ghc='unknown'
649 fptools_version_of_ghc[_major]=`echo [$]fptools_version_of_ghc | sed -e 's/^\([[0-9]]\).*/\1/'`
650 fptools_version_of_ghc[_minor]=`echo [$]fptools_version_of_ghc | sed -e 's/^[[0-9]]\.\([[0-9]]*\).*/\1/'`
651 fptools_version_of_ghc[_pl]=`echo [$]fptools_version_of_ghc | sed -n -e 's/^[[0-9]]\.[[0-9]]*\.\([[0-9]]*\)/\1/p'`
653 if test "[$]fptools_version_of_ghc[_pl]" = ""
655 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor]"
656 fptools_version_of_ghc[_pl]="0"
658 fptools_version_of_ghc[_all]="[$]fptools_version_of_ghc[_major].[$]fptools_version_of_ghc[_minor].[$]fptools_version_of_ghc[_pl]"
662 [$1]="[$]fptools_version_of_ghc[_all]"
664 [$1]="[$]fptools_version_of_ghc[_major]"
665 [$2]="[$]fptools_version_of_ghc[_minor]"
667 [$1]="[$]fptools_version_of_ghc[_major]"
668 [$2]="[$]fptools_version_of_ghc[_minor]"
669 [$3]="[$]fptools_version_of_ghc[_pl]"
671 [$1]="[$]fptools_version_of_ghc[_all]"
672 [$2]="[$]fptools_version_of_ghc[_major]"
673 [$3]="[$]fptools_version_of_ghc[_minor]"
674 [$4]="[$]fptools_version_of_ghc[_pl]"
680 # FP_CHECK_FUNC(FUNCTION, PROLOGUE, BODY, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
681 # ---------------------------------------------------------------------------------
682 # A variant of AC_CHECK_FUNCS, limited to a single FUNCTION, but with the
683 # additional flexibility of specifying the PROLOGUE and BODY.
684 AC_DEFUN([FP_CHECK_FUNC],
685 [AS_VAR_PUSHDEF([fp_func], [fp_cv_func_$1])dnl
686 AC_CACHE_CHECK([for $1], fp_func,
687 [AC_LINK_IFELSE([AC_LANG_PROGRAM([$2], [$3])],
688 [AS_VAR_SET(fp_func, yes)],
689 [AS_VAR_SET(fp_func, no)])])
690 AS_IF([test AS_VAR_GET(fp_func) = yes],
691 [AC_DEFINE(AS_TR_CPP(HAVE_$1), [1],
692 [Define to 1 if you have the `]$1[' function.]) $4],
694 AS_VAR_POPDEF([fp_func])dnl
700 # Generates a DocBook XML V4.2 document in conftest.xml.
702 # It took a lot of experimentation to find a document that will cause
703 # xsltproc to fail with an error code when the relevant
704 # stylesheets/DTDs are not found. I couldn't make xsltproc fail with
705 # a single-file document, it seems a multi-file document is needed.
708 AC_DEFUN([FP_GEN_DOCBOOK_XML],
709 [rm -f conftest.xml conftest-book.xml
710 cat > conftest.xml << EOF
711 <?xml version="1.0" encoding="iso-8859-1"?>
712 <!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN"
713 "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd" [[
714 <!ENTITY conftest-book SYSTEM "conftest-book.xml">
720 cat >conftest-book.xml << EOF
721 <?xml version="1.0" encoding="iso-8859-1"?>
722 <title>A DocBook “Test Document”</title>
723 <chapter id="id-one">
724 <title>A Chapter Title</title>
725 <para>This is a paragraph, referencing <xref linkend="id-two"/>.</para>
727 <chapter id="id-two">
728 <title>Another Chapter Title</title>
729 <para>This is another paragraph, referencing <xref linkend="id-one"/>.</para>
732 ]) # FP_GEN_DOCBOOK_XML
737 # Sets the output variable DblatexCmd to the full path of dblatex,
738 # which we use for building PDF and PS docs.
739 # DblatexCmd is empty if dblatex could not be found.
740 AC_DEFUN([FP_PROG_DBLATEX],
741 [AC_PATH_PROG([DblatexCmd], [dblatex])
742 if test -z "$DblatexCmd"; then
743 AC_MSG_WARN([cannot find dblatex in your PATH, you will not be able to build the PDF and PS documentation])
750 # Sets the output variable XsltprocCmd to the full path of the XSLT processor
751 # xsltproc. XsltprocCmd is empty if xsltproc could not be found.
752 AC_DEFUN([FP_PROG_XSLTPROC],
753 [AC_PATH_PROG([XsltprocCmd], [xsltproc])
754 if test -z "$XsltprocCmd"; then
755 AC_MSG_WARN([cannot find xsltproc in your PATH, you will not be able to build the HTML documentation])
761 # ----------------------------
762 # Check that we can process a DocBook XML document to HTML using xsltproc.
763 AC_DEFUN([FP_DOCBOOK_XSL],
764 [AC_REQUIRE([FP_PROG_XSLTPROC])dnl
765 if test -n "$XsltprocCmd"; then
766 AC_CACHE_CHECK([for DocBook XSL stylesheet], fp_cv_dir_docbook_xsl,
768 fp_cv_dir_docbook_xsl=no
769 if $XsltprocCmd --nonet http://docbook.sourceforge.net/release/xsl/current/html/chunk.xsl conftest.xml > /dev/null 2>&1; then
770 fp_cv_dir_docbook_xsl=yes
774 if test x"$fp_cv_dir_docbook_xsl" = xno; then
775 AC_MSG_WARN([cannot find DocBook XSL stylesheets, you will not be able to build the documentation])
780 AC_SUBST([HAVE_DOCBOOK_XSL])
786 # Sets the output variable XmllintCmd to the full path of the XSLT processor
787 # xmllint. XmllintCmd is empty if xmllint could not be found.
788 AC_DEFUN([FP_PROG_XMLLINT],
789 [AC_PATH_PROG([XmllintCmd], [xmllint])
790 if test -z "$XmllintCmd"; then
791 AC_MSG_WARN([cannot find xmllint in your PATH, you will not be able to validate your documentation])
796 # FP_CHECK_DOCBOOK_DTD
797 # --------------------
798 AC_DEFUN([FP_CHECK_DOCBOOK_DTD],
799 [AC_REQUIRE([FP_PROG_XMLLINT])dnl
800 if test -n "$XmllintCmd"; then
801 AC_MSG_CHECKING([for DocBook DTD])
803 if $XmllintCmd --nonet --valid --noout conftest.xml ; then
806 AC_MSG_RESULT([failed])
807 AC_MSG_WARN([cannot find a DTD for DocBook XML V4.2, you will not be able to validate your documentation])
808 AC_MSG_WARN([check your XML_CATALOG_FILES environment variable and/or /etc/xml/catalog])
812 ])# FP_CHECK_DOCBOOK_DTD
817 # Generates a formatting objects document in conftest.fo.
818 AC_DEFUN([FP_GEN_FO],
820 cat > conftest.fo << EOF
821 <?xml version="1.0"?>
822 <fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format">
823 <fo:layout-master-set>
824 <fo:simple-page-master master-name="blank">
826 </fo:simple-page-master>
827 </fo:layout-master-set>
828 <fo:page-sequence master-reference="blank">
829 <fo:flow flow-name="xsl-region-body">
842 # Set the output variable 'FopCmd' to the first working 'fop' in the current
843 # 'PATH'. Note that /usr/bin/fop is broken in SuSE 9.1 (unpatched), so try
844 # /usr/share/fop/fop.sh in that case (or no 'fop'), too.
845 AC_DEFUN([FP_PROG_FOP],
846 [AC_PATH_PROGS([FopCmd1], [fop fop.sh])
847 if test -n "$FopCmd1"; then
848 AC_CACHE_CHECK([for $FopCmd1 usability], [fp_cv_fop_usability],
850 if "$FopCmd1" -fo conftest.fo -ps conftest.ps > /dev/null 2>&1; then
851 fp_cv_fop_usability=yes
853 fp_cv_fop_usability=no
856 if test x"$fp_cv_fop_usability" = xyes; then
860 if test -z "$FopCmd"; then
861 AC_PATH_PROGS([FopCmd2], [fop.sh], , [/usr/share/fop])
870 # Sets the output variable HstagsCmd to the full Haskell tags program path.
871 # HstagsCmd is empty if no such program could be found.
872 AC_DEFUN([FP_PROG_HSTAGS],
873 [AC_PATH_PROG([HstagsCmd], [hasktags])
874 if test -z "$HstagsCmd"; then
875 AC_MSG_WARN([cannot find hasktags in your PATH, you will not be able to build the tags])
882 # Try to find a ghc-pkg matching the ghc mentioned in the environment variable
883 # WithGhc. If the latter is unset or no matching ghc-pkg can be found, try to
884 # find a plain ghc-pkg. Sets the output variable GhcPkgCmd.
885 AC_DEFUN([FP_PROG_GHC_PKG],
886 [AC_CACHE_CHECK([for ghc-pkg matching $WithGhc], fp_cv_matching_ghc_pkg,
887 [fp_ghc_pkg_guess=`echo $WithGhc | sed 's,ghc\(@<:@^/\\@:>@*\)$,ghc-pkg\1,'`
888 if "$fp_ghc_pkg_guess" -l > /dev/null 2>&1; then
889 fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
890 elif "$fp_ghc_pkg_guess" list > /dev/null 2>&1; then
891 # from 6.10, ghc-pkg doesn't support the old -l syntax any more
892 fp_cv_matching_ghc_pkg=$fp_ghc_pkg_guess
894 fp_cv_matching_ghc_pkg=no
896 if test x"$fp_cv_matching_ghc_pkg" = xno; then
897 AC_PATH_PROG([GhcPkgCmd], [ghc-pkg])
899 GhcPkgCmd=$fp_cv_matching_ghc_pkg
900 fi])# FP_PROG_GHC_PKG
905 # Determine which extra flags we need to pass gcc when we invoke it
906 # to compile .hc code.
908 # Some OSs (Mandrake Linux, in particular) configure GCC with
909 # -momit-leaf-frame-pointer on by default. If this is the case, we
910 # need to turn it off for mangling to work. The test is currently a
911 # bit crude, using only the version number of gcc.
913 # -fwrapv is needed for gcc to emit well-behaved code in the presence of
914 # integer wrap around. (Trac #952)
916 # -fno-unit-at-a-time or -fno-toplevel-reoder is necessary to avoid gcc
917 # reordering things in the module and confusing the manger and/or splitter.
920 AC_DEFUN([FP_GCC_EXTRA_FLAGS],
921 [AC_REQUIRE([FP_HAVE_GCC])
922 AC_CACHE_CHECK([for extra options to pass gcc when compiling via C], [fp_cv_gcc_extra_opts],
923 [fp_cv_gcc_extra_opts=
924 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
925 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fwrapv"],
927 case $TargetPlatform in
929 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.2],
930 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -mno-omit-leaf-frame-pointer"],
932 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [3.4],
933 [FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [4.2],
934 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
935 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-unit-at-a-time"]
940 FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-ge], [4.2],
941 [fp_cv_gcc_extra_opts="$fp_cv_gcc_extra_opts -fno-toplevel-reorder"],
946 AC_SUBST([GccExtraViaCOpts],$fp_cv_gcc_extra_opts)
950 # FP_SETUP_PROJECT_VERSION
951 # ---------------------
952 AC_DEFUN([FP_SETUP_PROJECT_VERSION],
954 if test "$RELEASE" = "NO"; then
955 AC_MSG_CHECKING([for GHC version date])
956 if test -f VERSION_DATE; then
957 PACKAGE_VERSION=${PACKAGE_VERSION}.`cat VERSION_DATE`
958 AC_MSG_RESULT(given $PACKAGE_VERSION)
959 elif test -d .git; then
961 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/"`
962 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
964 AC_MSG_ERROR([failed to detect version date: check that git is in your path])
966 PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
967 AC_MSG_RESULT(inferred $PACKAGE_VERSION)
968 elif test -d _darcs; then
969 # TODO: Remove this branch after conversion to Git
971 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`
972 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
974 AC_MSG_ERROR([failed to detect version date: check that darcs is in your path])
976 PACKAGE_VERSION=${PACKAGE_VERSION}.$ver_date
977 AC_MSG_RESULT(inferred $PACKAGE_VERSION)
978 elif test -f VERSION; then
979 PACKAGE_VERSION=`cat VERSION`
980 AC_MSG_RESULT(given $PACKAGE_VERSION)
982 AC_MSG_WARN([cannot determine snapshot version: no .git or _darcs directory and no VERSION file])
987 AC_SUBST([ProjectName], [$PACKAGE_NAME])
988 AC_SUBST([ProjectVersion], [$PACKAGE_VERSION])
990 # Split PACKAGE_VERSION into (possibly empty) parts
991 VERSION_MAJOR=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
992 VERSION_TMP=`echo $PACKAGE_VERSION | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
993 VERSION_MINOR=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\1'/`
994 ProjectPatchLevel=`echo $VERSION_TMP | sed 's/^\(@<:@^.@:>@*\)\(\.\{0,1\}\(.*\)\)$/\3'/`
996 # Calculate project version as an integer, using 2 digits for minor version
997 case $VERSION_MINOR in
998 ?) ProjectVersionInt=${VERSION_MAJOR}0${VERSION_MINOR} ;;
999 ??) ProjectVersionInt=${VERSION_MAJOR}${VERSION_MINOR} ;;
1000 *) AC_MSG_ERROR([bad minor version in $PACKAGE_VERSION]) ;;
1002 AC_SUBST([ProjectVersionInt])
1004 # The project patchlevel is zero unless stated otherwise
1005 test -z "$ProjectPatchLevel" && ProjectPatchLevel=0
1007 # Remove dots from the patch level; this allows us to have versions like 6.4.1.20050508
1008 ProjectPatchLevel=`echo $ProjectPatchLevel | sed 's/\.//'`
1010 AC_SUBST([ProjectPatchLevel])
1011 ])# FP_SETUP_PROJECT_VERSION
1014 # Check for a working timer_create(). We need a pretty detailed check
1015 # here, because there exist partially-working implementations of
1016 # timer_create() in certain versions of Linux (see bug #1933).
1018 AC_DEFUN([FP_CHECK_TIMER_CREATE],
1019 [AC_CACHE_CHECK([for a working timer_create(CLOCK_REALTIME)],
1020 [fptools_cv_timer_create_works],
1023 #ifdef HAVE_STDLIB_H
1029 #ifdef HAVE_SIGNAL_H
1032 #ifdef HAVE_UNISTD_H
1036 static volatile int tock = 0;
1037 static void handler(int i)
1042 static void timeout(int i)
1044 // timer_settime() has been known to hang, so just in case
1045 // we install a 1-second timeout (see #2257)
1049 int main(int argc, char *argv[])
1054 struct itimerspec it;
1055 struct sigaction action;
1058 ev.sigev_notify = SIGEV_SIGNAL;
1059 ev.sigev_signo = SIGVTALRM;
1061 action.sa_handler = handler;
1062 action.sa_flags = 0;
1063 sigemptyset(&action.sa_mask);
1064 if (sigaction(SIGVTALRM, &action, NULL) == -1) {
1065 fprintf(stderr,"SIGVTALRM problem\n");
1069 action.sa_handler = timeout;
1070 action.sa_flags = 0;
1071 sigemptyset(&action.sa_mask);
1072 if (sigaction(SIGALRM, &action, NULL) == -1) {
1073 fprintf(stderr,"SIGALRM problem\n");
1078 if (timer_create(CLOCK_PROCESS_CPUTIME_ID, &ev, &timer) != 0) {
1079 fprintf(stderr,"No CLOCK_PROCESS_CPUTIME_ID timer\n");
1083 it.it_value.tv_sec = 0;
1084 it.it_value.tv_nsec = 1;
1085 it.it_interval = it.it_value;
1086 if (timer_settime(timer, 0, &it, NULL) != 0) {
1087 fprintf(stderr,"settime problem\n");
1093 for(n = 3; n < 20000; n++){
1094 for(m = 2; m <= n/2; m++){
1095 if (!(n%m)) count++;
1102 fprintf(stderr,"no CLOCK_PROCESS_CPUTIME_ID signal\n");
1106 timer_delete(timer);
1108 if (timer_create(CLOCK_REALTIME, &ev, &timer) != 0) {
1109 fprintf(stderr,"No CLOCK_REALTIME timer\n");
1113 it.it_value.tv_sec = 0;
1114 it.it_value.tv_nsec = 1000000;
1115 it.it_interval = it.it_value;
1116 if (timer_settime(timer, 0, &it, NULL) != 0) {
1117 fprintf(stderr,"settime problem\n");
1126 fprintf(stderr,"no CLOCK_REALTIME signal\n");
1130 timer_delete(timer);
1135 [fptools_cv_timer_create_works=yes],
1136 [fptools_cv_timer_create_works=no])
1138 case $fptools_cv_timer_create_works in
1139 yes) AC_DEFINE([USE_TIMER_CREATE], 1,
1140 [Define to 1 if we can use timer_create(CLOCK_PROCESS_CPUTIME_ID,...)]);;
1146 AC_DEFUN([FP_ARG_GMP],
1148 AC_ARG_WITH([gmp-includes],
1149 [AC_HELP_STRING([--with-gmp-includes],
1150 [directory containing gmp.h])],
1151 [gmp_includes=$withval],
1152 [gmp_includes=NONE])
1154 AC_ARG_WITH([gmp-libraries],
1155 [AC_HELP_STRING([--with-gmp-libraries],
1156 [directory containing gmp library])],
1157 [gmp_libraries=$withval],
1158 [gmp_libraries=NONE])
1161 AC_DEFUN([CHECK_GMP],
1162 [AC_REQUIRE([AC_PROG_CPP])
1163 AC_REQUIRE([AC_PROG_CC])
1166 # FP_CHECK_MACOSX_DEPLOYMENT_TARGET
1167 # ---------------------------------
1168 AC_DEFUN([FP_CHECK_MACOSX_DEPLOYMENT_TARGET],
1170 if test "x$TargetOS_CPP-$TargetVendor_CPP" = "xdarwin-apple"; then
1171 AC_MSG_CHECKING([Mac OS X deployment target])
1172 case $FP_MACOSX_DEPLOYMENT_TARGET in
1174 10.4) MACOSX_DEPLOYMENT_VERSION=10.4
1175 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX10.4u.sdk
1177 10.4u) MACOSX_DEPLOYMENT_VERSION=10.4
1178 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX10.4u.sdk
1180 *) MACOSX_DEPLOYMENT_VERSION=$FP_MACOSX_DEPLOYMENT_TARGET
1181 MACOSX_DEPLOYMENT_SDK=/Developer/SDKs/MacOSX${FP_MACOSX_DEPLOYMENT_TARGET}.sdk
1184 if test "x$FP_MACOSX_DEPLOYMENT_TARGET" = "xnone"; then
1187 if test ! -d $MACOSX_DEPLOYMENT_SDK; then
1188 AC_MSG_ERROR([Unknown deployment target $FP_MACOSX_DEPLOYMENT_TARGET])
1190 AC_MSG_RESULT([${MACOSX_DEPLOYMENT_VERSION} (${MACOSX_DEPLOYMENT_SDK})])
1195 # --------------------------------------------------------------
1196 # Calculate absolute path to build tree
1197 # --------------------------------------------------------------
1199 AC_DEFUN([FP_FIND_ROOT],[
1200 AC_MSG_CHECKING(for path to top of build tree)
1203 dnl make -C utils/ghc-pwd clean && make -C utils/ghc-pwd
1204 dnl except we don't want to have to know what make is called. Sigh.
1205 if test ! -f utils/ghc-pwd/ghc-pwd && test ! -f utils/ghc-pwd/ghc-pwd.exe; then
1211 "$WithGhc" -v0 --make ghc-pwd -o ghc-pwd
1215 hardtop=`utils/ghc-pwd/ghc-pwd`
1217 if ! test -d "$hardtop"; then
1218 AC_MSG_ERROR([cannot determine current directory])
1221 dnl Remove common automounter nonsense
1223 hardtop=`echo $hardtop | sed 's|^/tmp_mnt.*\(/local/.*\)$|\1|' | sed 's|^/tmp_mnt/|/|'`
1227 AC_MSG_RESULT(${hardtop})
1229 # We don't support building in directories with spaces.
1231 *' '*) AC_MSG_ERROR([
1232 The build system does not support building in a directory containing
1233 space characters. Suggestion: move the build tree somewhere else.])
1238 # GHC_CONVERT_CPU(cpu, target_var)
1239 # --------------------------------
1240 # converts cpu from gnu to ghc naming, and assigns the result to $target_var
1241 AC_DEFUN([GHC_CONVERT_CPU],[
1298 echo "Unknown CPU $1"
1304 # GHC_CONVERT_VENDOR(vendor, target_var)
1305 # --------------------------------
1306 # converts vendor from gnu to ghc naming, and assigns the result to $target_var
1307 AC_DEFUN([GHC_CONVERT_VENDOR],[
1311 # GHC_CONVERT_OS(os, target_var)
1312 # --------------------------------
1313 # converts os from gnu to ghc naming, and assigns the result to $target_var
1314 AC_DEFUN([GHC_CONVERT_OS],[
1319 # As far as I'm aware, none of these have relevant variants
1320 freebsd|netbsd|openbsd|dragonfly|osf1|osf3|hpux|linuxaout|kfreebsdgnu|freebsd2|solaris2|cygwin32|mingw32|darwin|gnu|nextstep2|nextstep3|sunos4|ultrix|irix|aix|haiku)
1324 echo "Unknown OS $1"
1330 # LIBRARY_VERSION(lib)
1331 # --------------------------------
1332 # Gets the version number of a library.
1333 # If $1 is ghc-prim, then we define LIBRARY_ghc_prim_VERSION as 1.2.3
1334 AC_DEFUN([LIBRARY_VERSION],[
1335 LIBRARY_[]translit([$1], [-], [_])[]_VERSION=`grep -i "^version:" libraries/$1/$1.cabal | sed "s/.* //"`
1336 AC_SUBST(LIBRARY_[]translit([$1], [-], [_])[]_VERSION)