# This file adds the functions to build the MPFR library

 # Copyright 2008 Yann E. MORIN

 # Licensed under the GPL v2. See COPYING in the root of this package

 do_mpfr_get() { :; }

 do_mpfr_extract() { :; }

 do_mpfr() { :; }

 # Overide function depending on configuration

 if [ "${CT_MPFR}" = "y" ]; then

 # Download MPFR

 do_mpfr_get() {

     CT_GetFile "mpfr-${CT_MPFR_VERSION}" http://www.mpfr.org/mpfr-current/  \

                                  http://www.mpfr.org/mpfr-${CT_MPFR_VERSION}/

 }

 # Extract MPFR

 do_mpfr_extract() {

     CT_Extract "mpfr-${CT_MPFR_VERSION}"

     CT_Patch "mpfr" "${CT_MPFR_VERSION}"

     # OK, Gentoo have a sanity check that libtool.m4 and ltmain.sh have the

     # same version number. Unfortunately, some tarballs of MPFR are not

     # built sanely, and thus ./configure fails on Gentoo.

     # See: http://sourceware.org/ml/crossgcc/2008-05/msg00080.html

     # and: http://sourceware.org/ml/crossgcc/2008-06/msg00005.html

     # This hack is not bad per se, but the MPFR guys would be better not to

     # do that in the future...

     # It seems that MPFR >= 2.4.0 do not need this...

     case "${CT_MPFR_VERSION}" in

         2.4.*)

             CT_Pushd "${CT_SRC_DIR}/mpfr-${CT_MPFR_VERSION}"

             if [ ! -f .autoreconf.ct-ng ]; then

                 CT_DoLog DEBUG "Running autoreconf"

                 CT_DoExecLog ALL autoreconf

                 touch .autoreconf.ct-ng

             fi

             CT_Popd

             ;;

         1.*|2.0.*|2.1.*|2.2.*|2.3.*)

             CT_Pushd "${CT_SRC_DIR}/mpfr-${CT_MPFR_VERSION}"

             if [ ! -f .autotools.ct-ng ]; then

                 CT_DoLog DEBUG "Re-building autotools files"

                 CT_DoExecLog ALL autoreconf -fi

                 # Starting with libtool-1.9f, config.{guess,sub} are no longer

                 # installed without -i, but starting with libtool-2.2.6, they

                 # are no longer removed without -i. Sight... Just use -i with

                 # libtool >=2

                 # See: http://sourceware.org/ml/crossgcc/2008-11/msg00046.html

                 # and: http://sourceware.org/ml/crossgcc/2008-11/msg00048.html

                 libtoolize_opt=

                 case "$(libtoolize --version |head -n 1 |awk '{ print $(NF); }')" in

                     0.*)    ;;

                     1.*)    ;;

                     *)      libtoolize_opt=-i;;

                 esac

                 CT_DoExecLog ALL libtoolize -f ${libtoolize_opt}

                 touch .autotools.ct-ng

             fi

             CT_Popd

             ;;

     esac

 }

 do_mpfr() {

     mkdir -p "${CT_BUILD_DIR}/build-mpfr"

     cd "${CT_BUILD_DIR}/build-mpfr"

     CT_DoStep INFO "Installing MPFR"

     # Under Cygwin, we can't build a thread-safe library

     case "${CT_HOST}" in

         *cygwin*)   mpfr_opts+=( --disable-thread-safe );;

         *mingw*)    mpfr_opts+=( --disable-thread-safe );;

         *darwin*)   mpfr_opts+=( --disable-thread-safe );;

         *)          mpfr_opts+=( --enable-thread-safe  );;

     esac

     CT_DoLog EXTRA "Configuring MPFR"

     CT_DoExecLog CFG                                    \

     CC="${CT_HOST}-gcc"                                 \

     CFLAGS="${CT_CFLAGS_FOR_HOST}"                      \

     "${CT_SRC_DIR}/mpfr-${CT_MPFR_VERSION}/configure"   \

         --build=${CT_BUILD}                             \

         --host=${CT_HOST}                               \

         --prefix="${CT_COMPLIBS_DIR}"                   \

         --with-gmp="${CT_COMPLIBS_DIR}"                 \

         --disable-shared                                \

         --enable-static

     CT_DoLog EXTRA "Building MPFR"

     CT_DoExecLog ALL make ${JOBSFLAGS}

     if [ "${CT_COMPLIBS_CHECK}" = "y" ]; then

         CT_DoLog EXTRA "Checking MPFR"

         CT_DoExecLog ALL make ${JOBSFLAGS} -s check

     fi

     CT_DoLog EXTRA "Installing MPFR"

     CT_DoExecLog ALL make install

     CT_EndStep

 }

 fi # CT_MPFR