# This file adds the functions to build the GMP library

 # Copyright 2008 Yann E. MORIN

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

 do_gmp_get() { :; }

 do_gmp_extract() { :; }

 do_gmp_for_build() { :; }

 do_gmp_for_host() { :; }

 # Overide functions depending on configuration

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

 # Download GMP

 do_gmp_get() {

     CT_GetFile "gmp-${CT_GMP_VERSION}" {ftp,http}://{ftp.sunet.se/pub,ftp.gnu.org}/gnu/gmp

 }

 # Extract GMP

 do_gmp_extract() {

     CT_Extract "gmp-${CT_GMP_VERSION}"

     CT_Patch "gmp" "${CT_GMP_VERSION}"

 }

 # Build GMP for running on build

 # - always build statically

 # - we do not have build-specific CFLAGS

 # - install in build-tools prefix

 do_gmp_for_build() {

     local -a gmp_opts

     case "${CT_TOOLCHAIN_TYPE}" in

         native|cross)   return 0;;

     esac

     CT_DoStep INFO "Installing GMP for build"

     CT_mkdir_pushd "${CT_BUILD_DIR}/build-gmp-build-${CT_BUILD}"

     gmp_opts+=( "host=${CT_BUILD}" )

     gmp_opts+=( "prefix=${CT_BUILDTOOLS_PREFIX_DIR}" )

     do_gmp_backend "${gmp_opts[@]}"

     CT_Popd

     CT_EndStep

 }

 # Build GMP for running on host

 do_gmp_for_host() {

     local -a gmp_opts

     CT_DoStep INFO "Installing GMP for host"

     CT_mkdir_pushd "${CT_BUILD_DIR}/build-gmp-host-${CT_HOST}"

     gmp_opts+=( "host=${CT_HOST}" )

     gmp_opts+=( "prefix=${CT_HOST_COMPLIBS_DIR}" )

     gmp_opts+=( "cflags=${CT_CFLAGS_FOR_HOST}" )

     do_gmp_backend "${gmp_opts[@]}"

     CT_Popd

     CT_EndStep

 }

 # Build GMP

 #     Parameter     : description               : type      : default

 #     host          : machine to run on         : tuple     : (none)

 #     prefix        : prefix to install into    : dir       : (none)

 #     cflags        : host cflags to use        : string    : (empty)

 do_gmp_backend() {

     local host

     local prefix

     local cflags

     local arg

     for arg in "$@"; do

         eval "${arg// /\\ }"

     done

     CT_DoLog EXTRA "Configuring GMP"

     CT_DoExecLog CFG                                \

     CFLAGS="${cflags} -fexceptions"                 \

     "${CT_SRC_DIR}/gmp-${CT_GMP_VERSION}/configure" \

         --build=${CT_BUILD}                         \

         --host=${host}                              \

         --prefix="${prefix}"                        \

         --enable-fft                                \

         --enable-mpbsd                              \

         --enable-cxx                                \

         --disable-shared                            \

         --enable-static

     CT_DoLog EXTRA "Building GMP"

     CT_DoExecLog ALL make ${JOBSFLAGS}

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

         CT_DoLog EXTRA "Checking GMP"

         CT_DoExecLog ALL make ${JOBSFLAGS} -s check

     fi

     CT_DoLog EXTRA "Installing GMP"

     CT_DoExecLog ALL make install

 }

 fi # CT_GMP