#!/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 config.usage
exit $?
}
error_msg()
{
echo $@ >&2
}
init_vars()
{
mb_project_dir=$(cd `dirname $0` ; pwd)
mb_pwd=`pwd`
if [ x"$mb_config" = x ]; then
. $mb_project_dir/config.project || exit 2
else
. "$mb_config" || exit 2
fi
# dirs
mb_prefix=$PREFIX
mb_bindir=$BINDIR
mb_libdir=$LIBDIR
mb_includedir=$INCLUDEDIR
mb_syslibdir=$LIBDIR
mb_mandir=$MANDIR
mb_docdir=$DOCDIR
mb_libexecdir=$LIBEXECDIR
# build
mb_build=$BUILD
mb_host=$HOST
mb_target=$TARGET
mb_arch=$ARCH
mb_compiler=$COMPILER
mb_sysroot=$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=$CFLAGS_PATH
mb_ldflags=$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_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=$CXX
}
verify_build_directory()
{
if [ x"$mb_project_dir" = x"$mb_pwd" ]; then
if [ x"$mb_require_out_of_tree" = xyes ]; then
error_msg "$mb_package: out-of-tree builds are required."
error_msg "please invoke configure again from a clean build directory."
exit 2
else
mb_project_dir='.'
fi
fi
}
common_defaults()
{
# dirs
[ -z "$mb_prefix" ] && mb_prefix=$mb_default_prefix
[ -z "$mb_bindir" ] && mb_bindir=$mb_default_bindir
[ -z "$mb_libdir" ] && mb_libdir=$mb_default_libdir
[ -z "$mb_includedir" ] && mb_includedir=$mb_default_includedir
[ -z "$mb_syslibdir" ] && mb_syslibdir=$mb_default_syslibdir
[ -z "$mb_mandir" ] && mb_mandir=$mb_default_mandir
[ -z "$mb_docdir" ] && mb_docdir=$mb_default_docdir
[ -z "$mb_libexecdir" ] && mb_libexecdir=$mb_default_libexecdir
# build
[ -z "$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_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_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_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=$mb_default_elf_config_defs
# host/target
[ -z "$mb_host" ] && mb_host=$mb_target
[ -z "$mb_target" ] && mb_target=$mb_host
# sysroot
if [ x"$mb_sysroot" != x ]; then
if [ x"$mb_cflags_sysroot" = x ]; then
mb_cflags_sysroot="--sysroot=$mb_sysroot"
fi
if [ x"$mb_ldflags_sysroot" = x ]; then
mb_ldflags_sysroot="-Wl,--sysroot,$mb_sysroot"
fi
fi
# debug
if [ x"$mb_debug" = xyes ]; then
if [ x"$mb_cflags_debug" = x ]; then
mb_cflags_debug='-g3 -O0'
fi
fi
# compiler
if [ x"$mb_compiler" != x ]; then
if [ x"$mb_native_cc" = x ]; then
mb_native_cc=$mb_compiler
fi
fi
}
native_defaults()
{
# CC (when set, must be valid)
if [ x"$CC" != x ]; 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'
$mb_native_cc -dM -E - < /dev/null > /dev/null 2>/dev/null || mb_native_cc=
if [ x"$mb_native_cc" = x ]; then
error_msg "config error: could not find a working native compiler."
exit 2
fi
if [ x"$mb_compiler" = x ]; then
$mb_native_cc -dM -E - < /dev/null | grep '__clang__' > /dev/null && mb_compiler='clang'
fi
if [ x"$mb_compiler" = x ]; then
$mb_native_cc -dM -E - < /dev/null | grep '__GCC' > /dev/null && mb_compiler='gcc'
fi
if [ x"$mb_compiler" = x ]; then
$mb_native_cc -dM -E - < /dev/null | grep '__CPARSER__' > /dev/null && mb_compiler='cparser'
fi
if [ x"$mb_compiler" = x ]; then
error_msg "config error: could not identify the native compiler."
exit 2
fi
# host
if [ x"$mb_host" = x ]; then
mb_host='native'
fi
# target
if [ x"$mb_target" = x ]; 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 [ $mb_native_os_bits = 32 ]; then
mb_native_os_underscore='_'
else
mb_native_os_underscore=''
fi
if [ x"$mb_native_os_sizeof_pointer" = x ]; then
error_msg "config error: could not determine size of pointer on native system."
exit 2
fi
[ -z "$mb_native_os" ] && mb_native_os=$mb_native_os
[ -z "$mb_native_os_bits" ] && mb_native_os_bits=$mb_native_os_bits
[ -z "$mb_native_os_underscore" ] && mb_native_os_underscore=$mb_native_os_underscore
}
cross_defaults()
{
if [ x"$mb_cross_compile" = x ] && [ x"$mb_host" != xnative ]; then
mb_cross_compile=$mb_host'-'
fi
}
config_copy()
{
sed -e 's^@package@^'"$mb_package"'^g' \
-e 's^@project_dir@^'"$mb_project_dir"'^g' \
\
-e 's^@build@^'"$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^@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^@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^@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@^'"$mb_prefix"'^g' \
-e 's^@bindir@^'"$mb_bindir"'^g' \
-e 's^@libdir@^'"$mb_libdir"'^g' \
-e 's^@includedir@^'"$mb_includedir"'^g' \
-e 's^@syslibdir@^'"$mb_syslibdir"'^g' \
-e 's^@mandir@^'"$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' \
$mb_project_dir/Makefile.in > $mb_pwd/Makefile
}
config_host()
{
make host.tag && return 0
error_msg "configure was able to generate a Makefile for the selected host,"
error_msg "however the host-targeting compiler was found to be missing"
error_msg "at least one of the required headers or features."
exit 2
}
config_status()
{
printf "\n\n"
make .display
printf "\nconfiguration completed successfully.\n\n"
}
# one: init
init_vars
verify_build_directory
# two: args
for arg ; do
case "$arg" in
--help) usage
;;
# dirs
--prefix=*)
mb_prefix=${arg#*=}
;;
--bindir=*)
mb_bindir=${arg#*=}
;;
--libdir=*)
mb_libdir=${arg#*=}
;;
--includedir=*)
mb_includedir=${arg#*=}
;;
--syslibdir=*)
mb_syslibdir=${arg#*=}
;;
--mandir=*)
mb_mandir=${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#*=}
;;
--sysroot=*)
mb_sysroot=${arg#*=}
;;
--cross-compile=*)
mb_cross_compile=${arg#*=}
;;
--shell=*)
mb_shell=${arg#*=}
;;
--debug)
mb_debug='yes'
;;
*)
error_msg ${arg#}: "unsupported config argument."
exit 2
;;
esac
done
# three: defaults
common_defaults
native_defaults
cross_defaults
# four: config
config_copy
config_host
config_status
# all done
exit 0