#!/bin/sh
# we are no longer lazy.
# this script respects both CFLAGS and CFLAGS_CMDLINE,
# as well as both LDFLAGS and LDFLAGS_CMDLINE, however
# the latter variable of each pair should be preferred.
usage()
{
cat "$mb_project_dir"/config.usage
exit $?
}
error_msg()
{
echo "$@" >&2
}
init_vars()
{
mb_project_dir=$(cd `dirname $0` ; pwd)
mb_pwd=`pwd`
if [ -z "$mb_config" ]; then
. $mb_project_dir/config.project || exit 2
else
. "$mb_config" || exit 2
fi
# git
if [ -d "$mb_project_dir/.git" ]; then
mb_git_reference_dir="\$(PROJECT_DIR)/.git"
fi
# project
mb_nickname=$NICKNAME
# dirs
mb_prefix=$PREFIX
mb_exec_prefix=$EXEC_PREFIX
mb_bindir=$BINDIR
mb_libdir=$LIBDIR
mb_includedir=$INCLUDEDIR
mb_mandir=$MANDIR
mb_docdir=$DOCDIR
mb_libexecdir=$LIBEXECDIR
# build
mb_build=$BUILD
mb_host=$HOST
mb_target=$TARGET
mb_arch=$ARCH
mb_compiler=$COMPILER
mb_toolchain=$TOOLCHAIN
mb_sysroot=$SYSROOT
mb_cross_compile=$CROSS_COMPILE
mb_shell=$SHELL
# switches
mb_cflags=$CFLAGS
mb_cflags_debug=$CFLAGS_DEBUG
mb_cflags_common=$CFLAGS_COMMON
mb_cflags_cmdline=$CFLAGS_CMDLINE
mb_cflags_config=$CFLAGS_CONFIG
mb_cflags_sysroot=$CFLAGS_SYSROOT
mb_cflags_os=$CFLAGS_OS
mb_cflags_site=$CFLAGS_SITE
mb_cflags_path=$CFLAGS_PATH
mb_cflags_strict=$CFLAGS_STRICT
mb_cflags_util=$CFLAGS_UTIL
mb_ldflags=$LDFLAGS
mb_ldflags_debug=$LDFLAGS_DEBUG
mb_ldflags_common=$LDFLAGS_COMMON
mb_ldflags_cmdline=$LDFLAGS_CMDLINE
mb_ldflags_config=$LDFLAGS_CONFIG
mb_ldflags_sysroot=$LDFLAGS_SYSROOT
mb_ldflags_path=$LDFLAGS_PATH
mb_ldflags_strict=$LDFLAGS_STRICT
mb_ldflags_util=$LDFLAGS_UTIL
mb_pe_subsystem=$PE_SUBSYSTEM
mb_pe_image_base=$PE_IMAGE_BASE
mb_pe_config_defs=$PE_CONFIG_DEFS
mb_elf_eh_frame=$ELF_EH_FRAME
mb_elf_hash_style=$ELF_HASH_STYLE
mb_elf_config_defs=$ELF_CONFIG_DEFS
# overrides
mb_native_cc=$NATIVE_CC
mb_native_os=$NATIVE_OS
mb_native_os_bits=$NATIVE_OS_BITS
mb_native_os_underscore=$NATIVE_OS_UNDERSCORE
mb_user_cc=$CC
mb_user_cpp=$CPP
mb_user_cxx=$CXX
}
verify_build_directory()
{
if [ "$mb_project_dir" = "$mb_pwd" ]; then
if [ "$mb_require_out_of_tree" = yes ]; then
error_msg "$mb_package: out-of-tree builds are required."
error_msg "please invoke configure again from a clean build directory."
exit 2
else
mb_project_dir='.'
fi
fi
}
common_defaults()
{
# project
[ -z "$mb_nickname" ] && mb_nickname=$mb_package
# dirs
[ -z "$mb_prefix" ] && [ -z "$mb_prefix_set" ] \
&& mb_prefix='/usr/local'
[ -z "$mb_exec_prefix" ] && [ -z "$mb_exec_prefix_set" ] \
&& mb_exec_prefix=$mb_prefix
[ -z "$mb_bindir" ] && mb_bindir=$mb_exec_prefix/bin
[ -z "$mb_libdir" ] && mb_libdir=$mb_exec_prefix/lib
[ -z "$mb_includedir" ] && mb_includedir=$mb_prefix/include
[ -z "$mb_datarootdir" ] && mb_datarootdir=$mb_prefix/share
[ -z "$mb_mandir" ] && mb_mandir=$mb_datarootdir/man
[ -z "$mb_docdir" ] && mb_docdir=$mb_datarootdir/doc
[ -z "$mb_libexecdir" ] && mb_libexecdir=$mb_exec_prefix/libexec
# build
[ -z "$mb_build" ] && mb_build=$mb_default_build
[ -z "$mb_host" ] && mb_host=$mb_default_host
[ -z "$mb_target" ] && mb_target=$mb_default_target
[ -z "$mb_arch" ] && mb_arch=$mb_default_arch
[ -z "$mb_compiler" ] && mb_compiler=$mb_default_compiler
[ -z "$mb_toolchain" ] && mb_toolchain=$mb_default_toolchain
[ -z "$mb_sysroot" ] && mb_sysroot=$mb_default_sysroot
[ -z "$mb_cross_compile" ] && mb_cross_compile=$mb_default_cross_compile
[ -z "$mb_shell" ] && mb_shell=$mb_default_shell
# switches
[ -z "$mb_cflags_debug" ] && mb_cflags_debug=$mb_default_cflags_debug
[ -z "$mb_cflags_common" ] && mb_cflags_common=$mb_default_cflags_common
[ -z "$mb_cflags_cmdline" ] && mb_cflags_cmdline=$mb_default_cflags_cmdline
[ -z "$mb_cflags_config" ] && mb_cflags_config=$mb_default_cflags_config
[ -z "$mb_cflags_sysroot" ] && mb_cflags_sysroot=$mb_default_cflags_sysroot
[ -z "$mb_cflags_os" ] && mb_cflags_os=$mb_default_cflags_os
[ -z "$mb_cflags_site" ] && mb_cflags_site=$mb_default_cflags_site
[ -z "$mb_cflags_path" ] && mb_cflags_path=$mb_default_cflags_path
[ -z "$mb_cflags_strict" ] && mb_cflags_strict=$mb_default_cflags_strict
[ -z "$mb_cflags_util" ] && mb_cflags_util=$mb_default_cflags_util
[ -z "$mb_ldflags_debug" ] && mb_ldflags_debug=$mb_default_ldflags_debug
[ -z "$mb_ldflags_common" ] && mb_ldflags_common=$mb_default_ldflags_common
[ -z "$mb_ldflags_cmdline" ] && mb_ldflags_cmdline=$mb_default_ldflags_cmdline
[ -z "$mb_ldflags_config" ] && mb_ldflags_config=$mb_default_ldflags_config
[ -z "$mb_ldflags_sysroot" ] && mb_ldflags_sysroot=$mb_default_ldflags_sysroot
[ -z "$mb_ldflags_path" ] && mb_ldflags_path=$mb_default_ldflags_path
[ -z "$mb_ldflags_strict" ] && mb_ldflags_strict=$mb_default_ldflags_strict
[ -z "$mb_ldflags_util" ] && mb_ldflags_util=$mb_default_ldflags_util
[ -z "$mb_pe_subsystem" ] && mb_pe_subsystem=$mb_default_pe_subsystem
[ -z "$mb_pe_image_base" ] && mb_pe_image_base=$mb_default_pe_image_base
[ -z "$mb_pe_config_defs" ] && mb_pe_config_defs=$mb_default_pe_config_defs
[ -z "$mb_elf_eh_frame" ] && mb_elf_eh_frame=$mb_default_elf_eh_frame
[ -z "$mb_elf_hash_style" ] && mb_elf_hash_style=$mb_default_elf_hash_style
[ -z "$mb_elf_config_defs" ] && mb_elf_config_defs=$mb_default_elf_config_defs
# config
[ -z "$mb_all_static" ] && mb_all_static='no'
[ -z "$mb_all_shared" ] && mb_all_shared='no'
[ -z "$mb_disable_static" ] && mb_disable_static='no'
[ -z "$mb_disable_shared" ] && mb_disable_shared='no'
# host/target
[ -z "$mb_host" ] && mb_host=$mb_target
[ -z "$mb_target" ] && mb_target=$mb_host
# sysroot
if [ -n "$mb_sysroot" ]; then
if [ -z "$mb_cflags_sysroot" ]; then
mb_cflags_sysroot="--sysroot=$mb_sysroot"
fi
if [ -z "$mb_ldflags_sysroot" ]; then
mb_ldflags_sysroot="-Wl,--sysroot,$mb_sysroot"
fi
fi
# debug
if [ "$mb_debug" = yes ]; then
if [ -z "$mb_cflags_debug" ]; then
mb_cflags_debug='-g3 -O0'
fi
fi
# compiler
if [ -n "$mb_compiler" ]; then
if [ -z "$mb_native_cc" ]; then
mb_native_cc=$mb_compiler
fi
fi
# toolchain
if [ -z "$mb_toolchain" ]; then
mb_toolchain='binutils'
fi
# fallback host recipe
if [ -n "$mb_host" ]; then
if ! [ -f $mb_project_dir/sysinfo/host/$mb_host.mk ]; then
if [ -z "$mb_cross_compile" ]; then
mb_cross_compile=$mb_host-
fi
mb_host='any-host';
fi
fi
# fallback compiler recipe
if [ -n "$mb_compiler" ]; then
if ! [ -f $mb_project_dir/sysinfo/compiler/$mb_compiler.mk ]; then
mb_compiler='any-compiler'
fi
fi
}
native_defaults()
{
# CC (when set, must be valid)
if [ -n "$CC" ]; then
$CC -dM -E - < /dev/null > /dev/null || exit 2
fi
# compiler
[ -z "$mb_native_cc" ] && mb_native_cc=$CC
[ -z "$mb_native_cc" ] && mb_native_cc='cc'
$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
[ -z "$mb_native_cc" ] && mb_native_cc='gcc'
$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
[ -z "$mb_native_cc" ] && mb_native_cc='clang'
$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
[ -z "$mb_native_cc" ] && mb_native_cc='cparser'
$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
if [ -z "$mb_native_cc" ]; then
echo "configure: info: could not find a working native compiler."
mb_native_cc='false'
fi
if [ -z "$mb_compiler" ]; then
$mb_native_cc -dM -E - < /dev/null | grep '__clang__' > /dev/null && mb_compiler='clang'
fi
if [ -z "$mb_compiler" ]; then
$mb_native_cc -dM -E - < /dev/null | grep '__GCC' > /dev/null && mb_compiler='gcc'
fi
if [ -z "$mb_compiler" ]; then
$mb_native_cc -dM -E - < /dev/null | grep '__CPARSER__' > /dev/null && mb_compiler='cparser'
fi
if [ -z "$mb_compiler" ]; then
echo "configure: info: could not identify the native compiler."
mb_compiler='any-compiler'
fi
# host
if [ -z "$mb_host" ]; then
mb_host='native'
fi
# target
if [ -z "$mb_target" ]; then
mb_target='native'
fi
# os
mb_native_os=`uname | tr '[:upper:]' '[:lower:]'`
mb_native_os_sizeof_pointer=`$mb_native_cc -dM -E - < /dev/null \
| grep __SIZEOF_POINTER__ \
| cut -d ' ' -f3`
mb_native_os_bits=`expr '8' '*' '0'"$mb_native_os_sizeof_pointer"`
if [ $mb_native_os_bits = 32 ]; then
mb_native_os_underscore='_'
else
mb_native_os_underscore=''
fi
if [ -z "$mb_native_os_sizeof_pointer" ]; then
error_msg "config error: could not determine size of pointer on native system."
exit 2
fi
# fallback os recipe
if ! [ -f $mb_project_dir/sysinfo/os/$mb_native_os.mk ]; then
mb_native_os='any-os';
fi
}
cross_defaults()
{
if [ -z "$mb_cross_compile" ] && [ "$mb_host" != native ]; then
mb_cross_compile=$mb_host'-'
fi
}
config_flags()
{
mb_ldflags_tmp=" $mb_ldflags "
mb_ldflags_libs=`echo "$mb_ldflags_tmp" | sed 's/ -static / /g'`
if [ "$mb_ldflags_tmp" != "$mb_ldflags_libs" ]; then
mb_ldflags="$mb_ldflags_libs"
mb_ldflags_util="$mb_ldflags_util -static"
fi
# ccstrict
if [ "$mb_ccstrict" = 'yes' ]; then
mb_cflags_strict='-Wall -Werror -Wextra -Wundef'
fi
# ldstrict
if [ "$mb_ldstrict" = 'yes' ]; then
mb_ldflags_strict='-Wl,--no-undefined'
fi
}
config_copy()
{
sed -e 's^@package@^'"$mb_package"'^g' \
-e 's^@nickname@^'"$mb_nickname"'^g' \
-e 's^@project_dir@^'"$mb_project_dir"'^g' \
-e 's^@git_reference_dir@^'"$mb_git_reference_dir"'^g' \
-e 's^@custom_install_headers@^'"$mb_custom_install_headers"'^g' \
\
-e 's^@build@^'"$mb_build"'^g' \
-e 's^@host@^'"$mb_host"'^g' \
-e 's^@target@^'"$mb_target"'^g' \
-e 's^@arch@^'"$mb_arch"'^g' \
-e 's^@compiler@^'"$mb_compiler"'^g' \
-e 's^@toolchain@^'"$mb_toolchain"'^g' \
-e 's^@sysroot@^'"$mb_sysroot"'^g' \
-e 's^@cross_compile@^'"$mb_cross_compile"'^g' \
-e 's^@shell@^'"$mb_shell"'^g' \
\
-e 's^@cflags@^'"$mb_cflags"'^g' \
-e 's^@cflags_debug@^'"$mb_cflags_debug"'^g' \
-e 's^@cflags_common@^'"$mb_cflags_common"'^g' \
-e 's^@cflags_cmdline@^'"$mb_cflags $mb_cflags_cmdline"'^g' \
-e 's^@cflags_config@^'"$mb_cflags_config"'^g' \
-e 's^@cflags_sysroot@^'"$mb_cflags_sysroot"'^g' \
-e 's^@cflags_os@^'"$mb_cflags_os"'^g' \
-e 's^@cflags_site@^'"$mb_cflags_site"'^g' \
-e 's^@cflags_path@^'"$mb_cflags_path"'^g' \
-e 's^@cflags_strict@^'"$mb_cflags_strict"'^g' \
-e 's^@cflags_util@^'"$mb_cflags_util"'^g' \
\
-e 's^@ldflags@^'"$mb_ldflags"'^g' \
-e 's^@ldflags_debug@^'"$mb_ldflags_debug"'^g' \
-e 's^@ldflags_common@^'"$mb_ldflags_common"'^g' \
-e 's^@ldflags_cmdline@^'"$mb_ldflags $mb_ldflags_cmdline"'^g' \
-e 's^@ldflags_config@^'"$mb_ldflags_config"'^g' \
-e 's^@ldflags_sysroot@^'"$mb_ldflags_sysroot"'^g' \
-e 's^@ldflags_path@^'"$mb_ldflags_path"'^g' \
-e 's^@ldflags_strict@^'"$mb_ldflags_strict"'^g' \
-e 's^@ldflags_util@^'"$mb_ldflags_util"'^g' \
\
-e 's^@pe_subsystem@^'"$mb_pe_subsystem"'^g' \
-e 's^@pe_image\_base@^'"$mb_pe_image_base"'^g' \
-e 's^@pe_config\_defs@^'"$mb_pe_config_defs"'^g' \
\
-e 's^@elf_eh\_frame@^'"$mb_elf_eh_frame"'^g' \
-e 's^@elf_hash\_style@^'"$mb_elf_hash_style"'^g' \
-e 's^@elf_config\_defs@^'"$mb_elf_config_defs"'^g' \
\
-e 's^@prefix@^'"$mb_prefix"'^g' \
-e 's^@exec_prefix@^'"$mb_exec_prefix"'^g' \
-e 's^@bindir@^'"$mb_bindir"'^g' \
-e 's^@libdir@^'"$mb_libdir"'^g' \
-e 's^@includedir@^'"$mb_includedir"'^g' \
-e 's^@mandir@^'"$mb_mandir"'^g' \
-e 's^@docdir@^'"$mb_docdir"'^g' \
-e 's^@libexecdir@^'"$mb_libexecdir"'^g' \
\
-e 's^@native_cc@^'"$mb_native_cc"'^g' \
-e 's^@native_os@^'"$mb_native_os"'^g' \
-e 's^@native_os_bits@^'"$mb_native_os_bits"'^g' \
-e 's^@native_os_underscore@^'"$mb_native_os_underscore"'^g' \
\
-e 's^@user_cc@^'"$mb_user_cc"'^g' \
-e 's^@user_cpp@^'"$mb_user_cpp"'^g' \
-e 's^@user_cxx@^'"$mb_user_cxx"'^g' \
\
-e 's^@all_static@^'"$mb_all_static"'^g' \
-e 's^@all_shared@^'"$mb_all_shared"'^g' \
-e 's^@disable_static@^'"$mb_disable_static"'^g' \
-e 's^@disable_shared@^'"$mb_disable_shared"'^g' \
$mb_project_dir/Makefile.in > $mb_pwd/Makefile
}
config_support()
{
[ "$mb_disable_shared" = 'yes' ] && return 0
mbt_cc=`make .display-cc`
mbt_cflags=`make .display-cflags`
mbt_source='int foo(int x){return ++x;}'
mbt_result='no'
rm -f a.out
echo "$mbt_source" | "$mbt_cc" -shared -o a.out -xc -
stat a.out >/dev/null 2>&1 && mbt_result='yes'
rm -f a.out
if [ "$mbt_result" = 'no' ]; then
mb_disable_shared='yes'
config_copy
fi
}
config_host()
{
make -s host.tag && return 0
error_msg "configure was able to generate a Makefile for the selected host,"
error_msg "however the host-targeting compiler was found to be missing"
error_msg "at least one of the required headers or features."
exit 2
}
config_status()
{
printf "\n\n"
make .display
printf "\nconfiguration completed successfully.\n\n"
}
# one: init
init_vars
verify_build_directory
# two: args
for arg ; do
case "$arg" in
--help) usage
;;
# dirs
--prefix=*)
mb_prefix_set=yes
mb_prefix=${arg#*=}
;;
--exec-prefix=*)
mb_exec_prefix_set=yes
mb_exec_prefix=${arg#*=}
;;
--bindir=*)
mb_bindir=${arg#*=}
;;
--libdir=*)
mb_libdir=${arg#*=}
;;
--includedir=*)
mb_includedir=${arg#*=}
;;
--mandir=*)
mb_mandir=${arg#*=}
;;
--libexecdir=*)
mb_libexecdir=${arg#*=}
;;
# build
--build=*)
mb_build=${arg#*=}
;;
--host=*)
mb_host=${arg#*=}
;;
--target=*)
mb_target=${arg#*=}
;;
--arch=*)
mb_arch=${arg#*=}
;;
--compiler=*)
mb_compiler=${arg#*=}
;;
--toolchain=*)
mb_toolchain=${arg#*=}
;;
--sysroot=*)
mb_sysroot=${arg#*=}
;;
--cross-compile=*)
mb_cross_compile=${arg#*=}
;;
--shell=*)
mb_shell=${arg#*=}
;;
--debug)
mb_debug='yes'
;;
# config
--all-static)
mb_all_static='yes'
;;
--all-shared)
mb_all_shared='yes'
;;
--disable-static)
mb_disable_static='yes'
;;
--disable-shared)
mb_disable_shared='yes'
;;
--enable-static)
mb_disable_static='no'
;;
--enable-shared)
mb_disable_shared='no'
;;
# convenience
--strict)
mb_ccstrict='yes'
mb_ldstrict='yes'
;;
--ccstrict)
mb_ccstrict='yes'
;;
--ldstrict)
mb_ldstrict='yes'
;;
# project
--nickname=*)
mb_nickname=${arg#*=}
;;
*)
error_msg ${arg#}: "unsupported config argument."
exit 2
;;
esac
done
# three: defaults
common_defaults
native_defaults
cross_defaults
# four: config
config_flags
config_copy
config_support
config_host
config_status
# all done
exit 0