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# Tinc App, an Android binding and user interface for the tinc mesh VPN daemon
# Copyright (C) 2017-2021 Pacien TRAN-GIRARD
#
# 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, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <https://www.gnu.org/licenses/>.
cmake_minimum_required(VERSION 3.4.1)
include(ExternalProject)
set(CC_OPTIMISATION_FLAGS "-ffunction-sections -fdata-sections")
set(LD_OPTIMISATION_FLAGS "-Wl,--gc-sections")
set(xCONFIG
"CC=${CMAKE_C_COMPILER} \
${CMAKE_C_COMPILE_OPTIONS_EXTERNAL_TOOLCHAIN}${CMAKE_C_COMPILER_EXTERNAL_TOOLCHAIN} \
${CMAKE_C_COMPILE_OPTIONS_TARGET}${CMAKE_C_COMPILER_TARGET} \
${CMAKE_C_COMPILE_OPTIONS_SYSROOT}${CMAKE_SYSROOT}"
"LD=${CMAKE_LINKER}"
"AR=${CMAKE_AR}"
"RANLIB=${CMAKE_RANLIB}"
"CFLAGS=${CMAKE_C_FLAGS} ${CC_OPTIMISATION_FLAGS}"
"LDFLAGS=${CMAKE_SHARED_LINKER_FLAGS} ${LD_OPTIMISATION_FLAGS}"
"--host=${CMAKE_C_COMPILER_TARGET}"
)
ExternalProject_Add(lzo
URL http://www.oberhumer.com/opensource/lzo/download/lzo-2.10.tar.gz
URL_HASH SHA1=4924676a9bae5db58ef129dc1cebce3baa3c4b5d
CONFIGURE_COMMAND <SOURCE_DIR>/configure ${xCONFIG} --disable-shared
BUILD_COMMAND make -j8
INSTALL_COMMAND make install DESTDIR=${CMAKE_CURRENT_BINARY_DIR} &&
rm -r <BINARY_DIR>
)
ExternalProject_Add(libressl
URL https://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-3.3.3.tar.gz
URL_HASH SHA256=a471565b36ccd1a70d0bd7d37c6e95c43a26a62829b487d9d2cdebfe58be3066
CONFIGURE_COMMAND <SOURCE_DIR>/configure ${xCONFIG} --disable-shared
BUILD_COMMAND make -j8 -C crypto
INSTALL_COMMAND make -C crypto install DESTDIR=${CMAKE_CURRENT_BINARY_DIR} &&
make -C include install DESTDIR=${CMAKE_CURRENT_BINARY_DIR} &&
rm -r <BINARY_DIR>
)
ExternalProject_Add(tinc
DEPENDS lzo libressl
URL https://github.com/gsliepen/tinc/archive/3ee0d5dddb56a13b8f3c50637e3cd075c701c9aa.tar.gz
URL_HASH SHA256=3a901e7e59d50675b311087ea202f5e409bf69df91d09d7798a0813f3ec05e13
# TODO: remove patch once merged in upstream (https://github.com/gsliepen/tinc/pull/251)
PATCH_COMMAND patch -p1 < ${PROJECT_SOURCE_DIR}/src/main/c/0001-tincctl-restrict-umask-argument-for-FORTIFY.patch
CONFIGURE_COMMAND autoreconf -fsi <SOURCE_DIR> &&
<SOURCE_DIR>/configure ${xCONFIG}
--with-openssl=${CMAKE_CURRENT_BINARY_DIR}/usr/local
--with-lzo=${CMAKE_CURRENT_BINARY_DIR}/usr/local
--disable-curses
--disable-readline
BUILD_COMMAND make -j8 -C src
INSTALL_COMMAND make -C src install DESTDIR=${CMAKE_CURRENT_BINARY_DIR} &&
${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_BINARY_DIR}/usr/local/sbin/tinc ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/libtinc.so &&
${CMAKE_COMMAND} -E copy
${CMAKE_CURRENT_BINARY_DIR}/usr/local/sbin/tincd ${CMAKE_LIBRARY_OUTPUT_DIRECTORY}/libtincd.so &&
rm -r <BINARY_DIR>
)
add_library(main SHARED src/main/c/main.c)
add_dependencies(main tinc)
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