| 1 | # gfanlib.m4 |
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| 2 | |
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| 3 | AC_DEFUN([SING_CHECK_GFANLIB], |
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| 4 | [ |
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| 5 | |
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| 6 | AC_ARG_ENABLE(gfanlib, |
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| 7 | AS_HELP_STRING([--enable-gfanlib], [Enables gfanlib, a package for basic convex geometry]), |
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| 8 | [ENABLE_GFANLIB="$enableval"], |
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| 9 | [ENABLE_GFANLIB=""]) |
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| 10 | |
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| 11 | AC_MSG_CHECKING(whether to check for gfanlib) |
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| 12 | |
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| 13 | if test "x$ENABLE_GFANLIB" != "xno"; then |
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| 14 | AC_MSG_RESULT([yes]) |
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| 15 | |
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| 16 | AC_CHECK_HEADERS([setoper.h cdd/setoper.h cddlib/setoper.h]) |
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| 17 | |
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| 18 | if test "x$ac_cv_header_setoper_h" = xno -a "x$ac_cv_header_cdd_setoper_h" = xno -a "x$ac_cv_header_cddlib_setoper_h" = xno; then |
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| 19 | AC_MSG_WARN([Note that setoper.h is missing!]) |
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| 20 | fi |
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| 21 | |
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| 22 | AC_MSG_CHECKING([whether libcddgmp is usable]) |
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| 23 | |
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| 24 | BACKUP_LIBS=$LIBS |
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| 25 | |
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| 26 | LIBS="$LIBS -lcddgmp $GMP_LIBS " |
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| 27 | |
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| 28 | AC_LANG_PUSH(C++) |
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| 29 | AC_LINK_IFELSE( |
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| 30 | [ |
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| 31 | AC_LANG_PROGRAM( |
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| 32 | [ |
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| 33 | #define GMPRATIONAL |
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| 34 | #ifdef HAVE_SETOPER_H |
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| 35 | # include <setoper.h> |
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| 36 | # include <cdd.h> |
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| 37 | #endif |
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| 38 | #ifdef HAVE_CDD_SETOPER_H |
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| 39 | # include <cdd/setoper.h> |
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| 40 | # include <cdd/cdd.h> |
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| 41 | #endif |
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| 42 | #ifdef HAVE_CDDLIB_SETOPER_H |
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| 43 | # include <cddlib/setoper.h> |
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| 44 | # include <cddlib/cdd.h> |
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| 45 | #endif |
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| 46 | ], [dd_set_global_constants(); dd_log=dd_FALSE; ] |
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| 47 | ) |
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| 48 | ], |
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| 49 | [PASSED_ALL_TESTS_FOR_GFANLIB="1"] [CDDGMPLDFLAGS="-lcddgmp $GMP_LIBS"] [CDDGMPCPPFLAGS="-DGMPRATIONAL"], |
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| 50 | [PASSED_ALL_TESTS_FOR_GFANLIB="0"] |
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| 51 | ) |
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| 52 | AC_LANG_POP() |
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| 53 | |
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| 54 | LIBS=$BACKUP_LIBS |
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| 55 | |
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| 56 | if test "x$PASSED_ALL_TESTS_FOR_GFANLIB" = x1; then |
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| 57 | AC_MSG_RESULT([yes]) |
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| 58 | AC_SUBST(CDDGMPLDFLAGS) |
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| 59 | AC_SUBST(CDDGMPCPPFLAGS) |
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| 60 | else |
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| 61 | AC_MSG_RESULT([no]) |
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| 62 | if test "x$ENABLE_GFANLIB" = "xyes"; then |
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| 63 | AC_MSG_ERROR([Error, could not use libcddgmp]) |
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| 64 | fi |
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| 65 | fi |
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| 66 | else |
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| 67 | AC_MSG_RESULT(no) |
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| 68 | PASSED_ALL_TESTS_FOR_GFANLIB="0" |
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| 69 | fi |
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| 70 | |
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| 71 | |
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| 72 | |
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| 73 | AM_CONDITIONAL(HAVE_GFANLIB, test "x$PASSED_ALL_TESTS_FOR_GFANLIB" = x1) |
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| 74 | AC_DEFINE_UNQUOTED(HAVE_GFANLIB, ${PASSED_ALL_TESTS_FOR_GFANLIB}, [whether gfanlib support is enabled]) |
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| 75 | |
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| 76 | ]) |
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