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Viewing changes to m4/gmp.m4

  • Committer: Package Import Robot
  • Author(s): Ansgar Burchardt
  • Date: 2012-03-17 17:15:13 UTC
  • Revision ID: package-import@ubuntu.com-20120317171513-l2eqm95mddmu2dj3
Tags: upstream-2.2~svn6573
Import upstream version 2.2~svn6573

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m4/gmp.m4
 
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## -*- autoconf -*-
 
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# DUNE_PATH_GMP()
 
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#
 
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# shell variables
 
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#   with_gmp
 
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#     no or path
 
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#   HAVE_GMP
 
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#     no or yes
 
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#   GMP_CPPFLAGS
 
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#   GMP_LIBS
 
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#
 
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# substitutions
 
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#   GMP_CPPFLAGS
 
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#   GMP_LIBS
 
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#
 
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# defines:
 
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#   HAVE_GMP
 
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#
 
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# conditionals:
 
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#   GMP
 
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AC_DEFUN([DUNE_PATH_GMP],[
 
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  AC_REQUIRE([AC_PROG_CXX])
 
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  AC_ARG_WITH([gmp],
 
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    [AS_HELP_STRING([--with-gmp=PATH],
 
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                   [directory to GMP (GNU MP Bignum Library)])])
 
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  HAVE_GMP=no
 
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  AS_IF([test x"$with_gmp" = x"no"], [
 
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    AC_MSG_NOTICE([skipping check for GMP])
 
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  ], [
 
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    AS_IF([test x"$with_gmp" = x || test x"$with_gmp" = xyes], [
 
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      for d in /usr /usr/local; do
 
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        AC_MSG_NOTICE([searching for GMP in $d...])
 
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        DUNE_CHECK_PATH_GMP($d)
 
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        AS_IF([test $HAVE_GMP = yes],[break])
 
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      done],[
 
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      DUNE_CHECK_PATH_GMP($with_gmp)
 
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    ])
 
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  ])
 
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  AS_IF([test $HAVE_GMP = yes],[
 
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    AC_DEFINE([HAVE_GMP],[ENABLE_GMP],[Was GMP found and GMP_CPPFLAGS used?])
 
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    DUNE_ADD_ALL_PKG([GMP], [\${GMP_CPPFLAGS}],
 
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                     [], [\${GMP_LIBS}])
 
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  ], [
 
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    GMP_CPPFLAGS=
 
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    GMP_LIBS=
 
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  ])
 
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  AC_SUBST([GMP_CPPFLAGS])
 
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  AC_SUBST([GMP_LIBS])
 
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  AM_CONDITIONAL(GMP,[test $HAVE_GMP = yes])
 
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  DUNE_ADD_SUMMARY_ENTRY([GMP],[$HAVE_GMP])
 
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])
 
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AC_DEFUN([DUNE_CHECK_PATH_GMP],[
 
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  GMP_CPPFLAGS="-I$1/include -DENABLE_GMP=1"
 
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  GMP_LIBS="-L$1/lib -lgmpxx -lgmp"
 
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  AC_LANG_PUSH([C++])
 
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  ac_save_CPPFLAGS="$CPPFLAGS"
 
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  ac_save_LIBS="$LIBS"
 
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  CPPFLAGS="$CPPFLAGS $GMP_CPPFLAGS"
 
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  AC_CHECK_HEADER([gmpxx.h], [HAVE_GMP=yes],
 
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    [AC_MSG_WARN([gmpxx.h not found in $1])])
 
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  AS_IF([test $HAVE_GMP = yes],[
 
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    DUNE_CHECK_LIB_EXT([$1/lib], gmp,[__gmpz_abs],[],[
 
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      HAVE_GMP=no
 
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      AC_MSG_WARN(libgmp not found)])
 
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  ])
 
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  CPPFLAGS="$ac_save_CPPFLAGS"
 
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  LIBS="$ac_save_LIBS"
 
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  AC_LANG_POP([C++])
 
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])
 
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