| 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="$enableval"], |
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| 9 | [ENABLE_GFANLIB=""]) |
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| 10 | |
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| 11 | AC_MSG_CHECKING(whether to check for gfanlib) |
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| 12 | PASSED_ALL_TESTS_FOR_GFANLIB="0" |
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| 13 | |
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| 14 | if test "x$ENABLE_GFANLIB" = "xno"; then |
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| 15 | AC_MSG_RESULT([no]) |
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| 16 | else |
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| 17 | AC_MSG_RESULT([yes]) |
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| 18 | |
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| 19 | AC_CHECK_HEADERS([setoper.h cdd/setoper.h cddlib/setoper.h]) |
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| 20 | |
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| 21 | if test "x$ac_cv_header_setoper_h" = xno -a "x$ac_cv_header_cdd_setoper_h" = xno -a "x$ac_cv_header_cddlib_setoper_h" = xno |
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| 22 | then |
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| 23 | if test "x$ENABLE_GFANLIB" = "xyes"; then |
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| 24 | AC_MSG_ERROR([Error, setoper.h is missing!]) |
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| 25 | fi |
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| 26 | else |
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| 27 | |
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| 28 | # Check whether --with-gmp was given. |
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| 29 | AC_REQUIRE([SING_CHECK_GMP]) |
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| 30 | |
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| 31 | AC_LANG_PUSH(C++) |
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| 32 | AC_SEARCH_LIBS([dd_free_global_constants],[cddgmp], |
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| 33 | [PASSED_ALL_TESTS_FOR_GFANLIB="1" |
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| 34 | CDDGMPLDFLAGS="-lcddgmp $GMP_LIBS" |
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| 35 | CDDGMPCPPFLAGS="-DGMPRATIONAL"], |
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| 36 | [if test "x$ENABLE_GFANLIB" = "xyes"; then |
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| 37 | AC_MSG_WARN("could not determine if libcddgmp is usable") |
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| 38 | fi |
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| 39 | ], |
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| 40 | [$GMP_LIBS]) |
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| 41 | AC_LANG_POP() |
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| 42 | |
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| 43 | AC_SUBST(CDDGMPCPPFLAGS) |
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| 44 | AC_SUBST(CDDGMPLDFLAGS) |
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| 45 | fi |
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| 46 | fi |
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| 47 | |
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| 48 | AM_CONDITIONAL(HAVE_GFANLIB, test "x$PASSED_ALL_TESTS_FOR_GFANLIB" = x1) |
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| 49 | AC_DEFINE_UNQUOTED(HAVE_GFANLIB, ${PASSED_ALL_TESTS_FOR_GFANLIB}, [whether gfanlib support is enabled]) |
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| 50 | |
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| 51 | ]) |
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