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+# Copyright (c) 2011 The Native Client Authors. All rights reserved.
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+# Use of this source code is governed by a BSD-style license that be
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+# found in the LICENSE file.
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+#
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+
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+set -o nounset
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+set -o errexit
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+
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+# scripts that source this file must be run from within packages tree
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+readonly SAVE_PWD=$(pwd)
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+
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+# Pick platform directory for compiler.
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+readonly OS_NAME=$(uname -s)
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+if [ $OS_NAME = "Darwin" ]; then
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+ readonly OS_SUBDIR="mac"
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+ readonly OS_SUBDIR_SHORT="mac"
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+elif [ $OS_NAME = "Linux" ]; then
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+ readonly OS_SUBDIR="linux"
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+ readonly OS_SUBDIR_SHORT="linux"
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+else
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+ readonly OS_SUBDIR="windows"
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+ readonly OS_SUBDIR_SHORT="win"
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+fi
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+
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+readonly MACHINE=$(uname -m)
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+if [ $MACHINE = "x86_64" ]; then
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+ readonly TARGET_BITSIZE=${TARGET_BITSIZE:-"64"}
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+ readonly HOST_BITSIZE=${HOST_BITSIZE:-"64"}
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+else
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+ # uname -m reports i686 on Linux and i386 on Mac
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+ readonly TARGET_BITSIZE=${TARGET_BITSIZE:-"32"}
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+ readonly HOST_BITSIZE=${HOST_BITSIZE:-"32"}
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+fi
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+
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+if [ $TARGET_BITSIZE == "64" ]; then
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+ readonly TARGET_BIT_PREFIX="64"
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+ readonly CROSS_ID=x86_64
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+else
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+ readonly TARGET_BIT_PREFIX=""
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+ readonly CROSS_ID=i686
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+fi
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+# we might want to override the detected host platform (e.g. on OSX 10.6)
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+if [ $HOST_BITSIZE == "64" ]; then
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+ readonly HOST_BIT_PREFIX="64"
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+else
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+ readonly HOST_BIT_PREFIX=""
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+fi
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+
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+export NACL_CROSS_PREFIX=${CROSS_ID}-nacl
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+export NACL_CROSS_PREFIX_DASH=${NACL_CROSS_PREFIX}-
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+
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+readonly NACL_NEWLIB=${NACL_NEWLIB:-"0"}
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+
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+if [ $NACL_NEWLIB = "1" ]; then
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+ readonly NACL_SDK_BASE=${NACL_SDK_ROOT}/toolchain/${OS_SUBDIR_SHORT}_x86_newlib
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+else
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+case "${NACL_SDK_ROOT}" in
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+*pepper_15* | *pepper_16* | *pepper_17*)
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+ readonly NACL_SDK_BASE=${NACL_SDK_ROOT}/toolchain/${OS_SUBDIR_SHORT}_x86
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+ ;;
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+*)
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+ readonly NACL_SDK_BASE=${NACL_SDK_ROOT}/toolchain/${OS_SUBDIR_SHORT}_x86_glibc
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+ ;;
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+esac
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+fi
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+
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+readonly NACL_BIN_PATH=${NACL_SDK_BASE}/bin
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+export NACLCC=${NACL_BIN_PATH}/${NACL_CROSS_PREFIX_DASH}gcc
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+export NACLCXX=${NACL_BIN_PATH}/${NACL_CROSS_PREFIX_DASH}g++
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+export NACLAR=${NACL_BIN_PATH}/${NACL_CROSS_PREFIX_DASH}ar
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+export NACLRANLIB=${NACL_BIN_PATH}/${NACL_CROSS_PREFIX_DASH}ranlib
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+export NACLLD=${NACL_BIN_PATH}/${NACL_CROSS_PREFIX_DASH}ld
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+export NACLAS=${NACL_BIN_PATH}/${NACL_CROSS_PREFIX_DASH}as
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+
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+# NACL_SDK_GCC_SPECS_PATH is where nacl-gcc 'specs' file will be installed
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+readonly NACL_SDK_GCC_SPECS_PATH=${NACL_SDK_BASE}/lib/gcc/x86_64-nacl/4.4.3
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+
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+# NACL_SDK_USR is where the headers, libraries, etc. will be installed
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+readonly NACL_SDK_USR=${NACL_SDK_BASE}/${NACL_CROSS_PREFIX}/usr
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+readonly NACL_SDK_USR_INCLUDE=${NACL_SDK_USR}/include
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+readonly NACL_SDK_USR_LIB=${NACL_SDK_USR}/lib
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+
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+
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+######################################################################
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+# Helper functions
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+######################################################################
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+
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+Banner() {
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+ echo "######################################################################"
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+ echo $*
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+ echo "######################################################################"
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+}
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+
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+
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+VerifyPath() {
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+ # make sure path isn't all slashes (possibly from an unset variable)
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+ local PATH=$1
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+ local TRIM=${PATH##/}
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+ if [ ${#TRIM} -ne 0 ]; then
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+ return 0
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+ else
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+ return 1
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+ fi
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+}
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+
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+
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+ChangeDir() {
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+ local NAME=$1
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+ if VerifyPath ${NAME}; then
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+ cd ${NAME}
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+ else
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+ echo "ChangeDir called with bad path."
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+ exit -1
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+ fi
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+}
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+
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+
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+Remove() {
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+ local NAME=$1
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+ if VerifyPath ${NAME}; then
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+ rm -rf ${NAME}
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+ else
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+ echo "Remove called with bad path."
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+ exit -1
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+ fi
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+}
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+
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+
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+MakeDir() {
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+ local NAME=$1
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+ if VerifyPath ${NAME}; then
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+ mkdir -p ${NAME}
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+ else
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+ echo "MakeDir called with bad path."
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+ exit -1
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+ fi
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+}
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+
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+
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+PatchSpecFile() {
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+ # fix up spaces so gcc sees entire path
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+ local SED_SAFE_SPACES_USR_INCLUDE=${NACL_SDK_USR_INCLUDE/ /\ /}
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+ local SED_SAFE_SPACES_USR_LIB=${NACL_SDK_USR_LIB/ /\ /}
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+ # have nacl-gcc dump specs file & add include & lib search paths
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+ ${NACL_SDK_BASE}/bin/x86_64-nacl-gcc -dumpspecs |\
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+ sed "/*cpp:/{
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+ N
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+ s|$| -I${SED_SAFE_SPACES_USR_INCLUDE}|
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+ }" |\
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+ sed "/*link_libgcc:/{
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+ N
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+ s|$| -L${SED_SAFE_SPACES_USR_LIB}|
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+ }" >${NACL_SDK_GCC_SPECS_PATH}/specs
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+}
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+
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+
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+DefaultConfigureStep() {
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+ Banner "Configuring ${PACKAGE_NAME}"
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+ # export the nacl tools
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+ export CC=${NACLCC}
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+ export CXX=${NACLCXX}
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+ export AR=${NACLAR}
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+ export RANLIB=${NACLRANLIB}
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+ export PKG_CONFIG_PATH=${NACL_SDK_USR_LIB}/pkgconfig
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+ export PKG_CONFIG_LIBDIR=${NACL_SDK_USR_LIB}
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+ export PATH=${NACL_BIN_PATH}:${PATH};
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+ ChangeDir ${NACL_PACKAGES_REPOSITORY}/${PACKAGE_NAME}
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+ Remove ${PACKAGE_NAME}-build
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+ MakeDir ${PACKAGE_NAME}-build
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+ cd ${PACKAGE_NAME}-build
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+ ../configure \
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+ --host=nacl \
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+ --disable-shared \
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+ --prefix=${NACL_SDK_USR} \
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+ --exec-prefix=${NACL_SDK_USR} \
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+ --libdir=${NACL_SDK_USR_LIB} \
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+ --oldincludedir=${NACL_SDK_USR_INCLUDE} \
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+ --with-http=off \
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+ --with-html=off \
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+ --with-ftp=off \
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+ --with-x=no
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+}
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+
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+
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+DefaultBuildStep() {
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+ # assumes pwd has makefile
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+ make clean
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+if [ $TARGET_BITSIZE == "64" ]; then
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+ make -j8
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+else
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+ make
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+fi
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+}
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+
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+
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+DefaultInstallStep() {
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+ # assumes pwd has makefile
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+ make install
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+}
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+
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+
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+DefaultCleanUpStep() {
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+ PatchSpecFile
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+ ChangeDir ${SAVE_PWD}
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+}
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+
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+
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+DefaultPackageInstall() {
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+ DefaultPreInstallStep
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+ DefaultDownloadStep
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+ DefaultExtractStep
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+ DefaultPatchStep
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+ DefaultConfigureStep
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+ DefaultBuildStep
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+ DefaultInstallStep
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+ DefaultCleanUpStep
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+}
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Elijah Taylor