| 1 | # Check for FLINT |
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| 2 | # Bradford Hovinen, 2001-06-13 |
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| 3 | # Modified by Pascal Giorgi, 2003-12-03 |
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| 4 | # Inspired by gnome-bonobo-check.m4 by Miguel de Icaza, 99-04-12 |
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| 5 | # Stolen from Chris Lahey 99-2-5 |
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| 6 | # stolen from Manish Singh again |
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| 7 | # stolen back from Frank Belew |
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| 8 | # stolen from Manish Singh |
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| 9 | # Shamelessly stolen from Owen Taylor |
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| 10 | |
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| 11 | dnl LB_CHECK_FLINT ([MINIMUM-VERSION [, ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]]) |
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| 12 | dnl |
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| 13 | dnl Test for FLINT and define |
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| 14 | dnl FLINT_CFLAGS and FLINT_LIBS |
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| 15 | |
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| 16 | AC_DEFUN([LB_CHECK_FLINT], |
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| 17 | [ |
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| 18 | DEFAULT_CHECKING_PATH="/usr /usr/local /sw /opt/local" |
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| 19 | |
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| 20 | AC_ARG_WITH(flint, |
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| 21 | [ --with-flint=<path>|yes|no Use FLINT library. If argument is no, you do not have |
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| 22 | the library installed on your machine (set as |
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| 23 | default). If argument is yes or <empty> that means |
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| 24 | the library is reachable with the standard search |
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| 25 | path (/usr or /usr/local). Otherwise you give the |
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| 26 | <path> to the directory which contain the library. |
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| 27 | ], |
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| 28 | [if test "$withval" = yes ; then |
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| 29 | FLINT_HOME_PATH="${DEFAULT_CHECKING_PATH}" |
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| 30 | elif test "$withval" != no ; then |
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| 31 | FLINT_HOME_PATH="$withval" |
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| 32 | fi], |
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| 33 | [FLINT_HOME_PATH="${DEFAULT_CHECKING_PATH}"]) |
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| 34 | |
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| 35 | min_flint_version=ifelse([$1], ,2.3,$1) |
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| 36 | |
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| 37 | |
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| 38 | dnl Check for existence |
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| 39 | BACKUP_CFLAGS=${CFLAGS} |
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| 40 | BACKUP_LIBS=${LIBS} |
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| 41 | |
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| 42 | AC_LANG_PUSH(C) |
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| 43 | |
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| 44 | if test -n "$FLINT_HOME_PATH"; then |
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| 45 | AC_MSG_CHECKING(for FLINT >= $min_flint_version) |
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| 46 | fi |
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| 47 | |
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| 48 | for FLINT_HOME in ${FLINT_HOME_PATH} |
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| 49 | do |
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| 50 | if test -r "$FLINT_HOME/include/fmpz.h"; then |
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| 51 | |
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| 52 | if test "x$FLINT_HOME" != "x/usr"; then |
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| 53 | FLINT_CFLAGS="-I${FLINT_HOME}/include" |
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| 54 | FLINT_LIBS="-L${FLINT_HOME}/lib -lflint -lmpfr -lmpir" |
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| 55 | else |
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| 56 | FLINT_CFLAGS= |
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| 57 | FLINT_LIBS="-lflint" |
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| 58 | fi |
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| 59 | CFLAGS="${BACKUP_CFLAGS} ${FLINT_CFLAGS}" |
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| 60 | LIBS="${BACKUP_LIBS} ${FLINT_LIBS}" |
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| 61 | |
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| 62 | AC_TRY_LINK( |
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| 63 | [#include <fmpz.h>], |
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| 64 | [fmpz_t a; fmpz_init (a);], |
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| 65 | [ |
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| 66 | AC_TRY_RUN( |
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| 67 | [#include <flint.h> |
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| 68 | int main () { if ((int) version[0] < 2) return -1; else return 0; } |
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| 69 | ],[ |
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| 70 | flint_found="yes" |
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| 71 | break |
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| 72 | ],[ |
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| 73 | flint_problem="$problem $FLINT_HOME" |
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| 74 | unset FLINT_CFLAGS |
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| 75 | unset FLINT_LIBS |
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| 76 | ],[ |
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| 77 | flint_found="yes" |
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| 78 | flint_cross="yes" |
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| 79 | break |
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| 80 | ]) |
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| 81 | ], |
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| 82 | [ |
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| 83 | flint_found="no" |
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| 84 | flint_checked="$checked $FLINT_HOME" |
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| 85 | unset FLINT_CFLAGS |
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| 86 | unset FLINT_LIBS |
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| 87 | ]) |
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| 88 | else |
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| 89 | flint_found="no" |
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| 90 | fi |
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| 91 | done |
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| 92 | |
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| 93 | if test "x$flint_found" = "xyes" ; then |
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| 94 | AC_SUBST(FLINT_CFLAGS) |
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| 95 | AC_SUBST(FLINT_LIBS) |
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| 96 | AC_SUBST(FLINT_HOME) |
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| 97 | AC_DEFINE(HAVE_FLINT,1,[Define if FLINT is installed]) |
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| 98 | HAVE_FLINT=yes |
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| 99 | if test "x$flint_cross" != "xyes"; then |
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| 100 | AC_MSG_RESULT(found) |
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| 101 | else |
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| 102 | AC_MSG_RESULT(unknown) |
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| 103 | echo "WARNING: You appear to be cross compiling, so there is no way to determine" |
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| 104 | echo "whether your FLINT version is new enough. I am assuming it is." |
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| 105 | fi |
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| 106 | ifelse([$2], , :, [$2]) |
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| 107 | elif test -n "$flint_problem"; then |
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| 108 | AC_MSG_RESULT(problem) |
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| 109 | echo "Sorry, your FLINT version is too old. Disabling." |
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| 110 | ifelse([$3], , :, [$3]) |
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| 111 | elif test "x$flint_found" = "xno"; then |
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| 112 | AC_MSG_RESULT(not found) |
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| 113 | ifelse([$3], , :, [$3]) |
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| 114 | fi |
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| 115 | |
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| 116 | AC_LANG_POP |
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| 117 | |
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| 118 | AM_CONDITIONAL(SING_HAVE_FLINT, test "x$HAVE_FLINT" = "xyes") |
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| 119 | |
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| 120 | CFLAGS=${BACKUP_CFLAGS} |
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| 121 | LIBS=${BACKUP_LIBS} |
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| 122 | #unset LD_LIBRARY_PATH |
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| 123 | |
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| 124 | ]) |
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| 125 | |
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