# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: package/.../musl/musl.conf
# Copyright (C) 2012 - 2016 The OpenSDE Project
#
# More information can be found in the files COPYING and README.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---

# translate $arch for being usable with musl
musl_arch="$( echo $arch | arch2uname )"

if [ $prefix_auto == 1 ]; then
	syslibdir="/lib"
fi
var_append configprefix ' ' "LDFLAGS=\"$LDFLAGS -Wl,-soname,libc-musl-$musl_arch.so.1\""

if atstage toolchain; then

	var_append extraconfopt ' ' '--host=$arch_build'
	confopt="--prefix=$base/build/$SDECFG_ID/usr \$extraconfopt"

	makeopt="ARCH=$musl_arch"
	makeinstopt="ARCH=$musl_arch install-headers"
fi

musl_postinstall() {
	# LDSO is the be the real file, and libc the symlink.

	local LDSO=ld-musl-$musl_arch.so.1
	local LIBCSO=libc-musl-$musl_arch.so.1

	mv $root$libdir/libc.so $root$syslibdir/$LDSO
	ln -vsf $LDSO $root$syslibdir/$LIBCSO

	# create a libc.so symlink to avoid libtool's attempt linking shared
	# libs against libc.a in certain cases
	ln -vsf $( relative_path $root$syslibdir/$LDSO $root$libdir/libc.so ) \
		$root$libdir/libc.so

	# create a symlink from ld-musl-$musl_arch.so to ldd if the dynlinker
	# was started as "ldd" it will print DSO information
	ln -vsf $( relative_path $root$syslibdir/$LDSO $root$bindir/ldd ) \
		$root$bindir/ldd

	# make some compat links for various libraries
	for i in libc.so.6 libcrypt.so.1 libm.so.6 libpthread.so.0 librt.so.1 libutil.so.1; do
		ln -vsf $( relative_path $root$syslibdir/$LIBCSO $root$syslibdir/$i ) \
			$root$syslibdir/$i
	done
}

musl_make_utils() {
	# build minimal libssp_nonshared.a so we don't need libssp from gcc
	# comes from Alpine Linux
	gcc $CPPFLAGS $CFLAGS -c $confdir/__stack_chk_fail_local.c -o __stack_chk_fail_local.o
	$AR r libssp_nonshared.a __stack_chk_fail_local.o
	cp -a libssp_nonshared.a $root/$libdir/
	# getent is needed by OpenSDE framework.
        gcc $CPPFLAGS $CFLAGS $confdir/getent.c -o $root/$sbindir/getent
}

# if musl is default libc
if [ "$SDECFG_LIBC" == "musl" ]; then
	# disable gcc wrapper script	
	var_append extraconfopt ' ' "--disable-gcc-wrapper"

	if ! atstage toolchain; then
		hook_add postinstall 5 'musl_postinstall'
	fi
	hook_add postflist 9 "rm -rf $root/$includedir/libintl.h"
	hook_add postpatch 5 'musl_make_utils'
fi