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# Copyright 2012 OSMOCOM Project
#
# This file is part of MiriSDR
#
# GNU Radio 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, or (at your option)
# any later version.
#
# GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street,
# Boston, MA 02110-1301, USA.

########################################################################
# Project setup
########################################################################
cmake_minimum_required(VERSION 2.6)
project(mirisdr C)

#select the release build type by default to get optimization flags
if(NOT CMAKE_BUILD_TYPE)
   set(CMAKE_BUILD_TYPE "Release")
   message(STATUS "Build type not specified: defaulting to release.")
endif(NOT CMAKE_BUILD_TYPE)
set(CMAKE_BUILD_TYPE ${CMAKE_BUILD_TYPE} CACHE STRING "")

list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)

########################################################################
# Compiler specific setup
########################################################################
if(CMAKE_COMPILER_IS_GNUCC AND NOT WIN32)
    ADD_DEFINITIONS(-Wall)
    ADD_DEFINITIONS(-Wextra)
    ADD_DEFINITIONS(-Wno-unused)
    ADD_DEFINITIONS(-Wsign-compare)
    #http://gcc.gnu.org/wiki/Visibility
    add_definitions(-fvisibility=hidden)
endif()

########################################################################
# Find build dependencies
########################################################################
find_package(PkgConfig)
find_package(LibUSB)

if(NOT LIBUSB_FOUND)
    message(FATAL_ERROR "LibUSB 1.0 required to compile MiriSDR")
endif()

########################################################################
# Setup the include and linker paths
########################################################################
include_directories(
    ${CMAKE_SOURCE_DIR}/include
    ${LIBUSB_INCLUDE_DIR}
)

#link_directories(
#    ...
#)

# Set component parameters
#set(INCLUDE_DIRS ${CMAKE_CURRENT_SOURCE_DIR}/include CACHE INTERNAL "" FORCE)

########################################################################
# Create uninstall target
########################################################################
configure_file(
    ${CMAKE_SOURCE_DIR}/cmake/cmake_uninstall.cmake.in
    ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
@ONLY)

add_custom_target(uninstall
    ${CMAKE_COMMAND} -P ${CMAKE_CURRENT_BINARY_DIR}/cmake_uninstall.cmake
)

########################################################################
# Add subdirectories
########################################################################
add_subdirectory(include)
add_subdirectory(src)

########################################################################
# Create Pkg Config File
########################################################################
FOREACH(inc ${LIBUSB_INCLUDE_DIR})
    LIST(APPEND MIRISDR_PC_CFLAGS "-I${inc}")
ENDFOREACH(inc)

FOREACH(lib ${LIBUSB_LIBRARY_DIRS})
    LIST(APPEND MIRISDR_PC_LIBS "-L${lib}")
ENDFOREACH(lib)

# use space-separation format for the pc file
STRING(REPLACE ";" " " MIRISDR_PC_CFLAGS "${MIRISDR_PC_CFLAGS}")
STRING(REPLACE ";" " " MIRISDR_PC_LIBS "${MIRISDR_PC_LIBS}")

# unset these vars to avoid hard-coded paths to cross environment
IF(CMAKE_CROSSCOMPILING)
    UNSET(MIRISDR_PC_CFLAGS)
    UNSET(MIRISDR_PC_LIBS)
ENDIF(CMAKE_CROSSCOMPILING)

set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix \${prefix})
set(libdir \${exec_prefix}/lib)
set(includedir \${prefix}/include)

CONFIGURE_FILE(
    ${CMAKE_CURRENT_SOURCE_DIR}/libmirisdr.pc.in
    ${CMAKE_CURRENT_BINARY_DIR}/libmirisdr.pc
@ONLY)

INSTALL(
    FILES ${CMAKE_CURRENT_BINARY_DIR}/libmirisdr.pc
    DESTINATION lib/pkgconfig
)