cmake_minimum_required(VERSION 4.0)
set(PROJ tty_term)
set(MINOR_VERSION "1")
set(MID_VERSION "3")
set(MAJOR_VERSION "0")
set(VERSION "${MAJOR_VERSION}.${MID_VERSION}.${MINOR_VERSION}")

project(${PROJ} VERSION ${VERSION} LANGUAGES C)

message("VER: ${VERSION}")

# options 
option(DEBUG "Compile in debug mode" OFF)

# default flags
set(CMAKE_C_FLAGS_RELEASE "")
set(CMAKE_C_FLAGS_DEBUG "")
set(CMAKE_C_FLAGS "-O3 -std=c23 -D_XOPEN_SOURCE=12345 -D_DEFAULT_SOURCE")

set(CMAKE_COLOR_MAKEFILE ON)

# here is one of two variants: all .c in directory or .c files in list
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR} SOURCES)

# cmake -DEBUG=1 -> debugging
if(DEBUG)
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wextra -Wall -Werror -W -Og -g3 -ggdb -fno-builtin-strlen")
    set(CMAKE_BUILD_TYPE DEBUG)
    set(CMAKE_VERBOSE_MAKEFILE "ON")
    add_definitions(-DEBUG)
else()
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -O3 -march=native -fdata-sections -ffunction-sections -flto=auto")
    SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections -flto=auto")
    set(CMAKE_BUILD_TYPE RELEASE)
endif()

###### pkgconfig ######
# pkg-config modules (for pkg-check-modules)
set(MODULES ncurses readline usefull_macros>=0.3.5)

# find packages:
find_package(PkgConfig REQUIRED)
find_package(Threads REQUIRED)
pkg_check_modules(${PROJ} REQUIRED ${MODULES})

find_package(Threads REQUIRED)
if(THREADS_HAVE_PTHREAD_ARG)
  set_property(TARGET ${PROJ} PROPERTY COMPILE_OPTIONS "-pthread")
  set_property(TARGET ${PROJ} PROPERTY INTERFACE_COMPILE_OPTIONS "-pthread")
endif()
if(CMAKE_THREAD_LIBS_INIT)
  list(APPEND ${PROJ}_LIBRARIES "${CMAKE_THREAD_LIBS_INIT}")
endif()


###### additional flags ######
#list(APPEND ${PROJ}_LIBRARIES "-lfftw3_threads")

# change wrong behaviour with install prefix
if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT AND CMAKE_INSTALL_PREFIX MATCHES "/usr/local")
else()
    message("Change default install path to /usr/local")
    set(CMAKE_INSTALL_PREFIX "/usr/local")
endif()
message("Install dir prefix: ${CMAKE_INSTALL_PREFIX}")

# exe file
add_executable(${PROJ} ${SOURCES})
# -I
target_include_directories(${PROJ} PUBLIC ${${PROJ}_INCLUDE_DIRS})
# -L
target_link_directories(${PROJ} PUBLIC ${${PROJ}_LIBRARY_DIRS})

# -D
add_definitions(${CFLAGS} -DLOCALEDIR=\"${LOCALEDIR}\" -DPROJECT=\"${PROJ}\"
        -DPACKAGE_VERSION=\"${VERSION}\" -DGETTEXT_PACKAGE=\"${PROJ}\"
        -DMINOR_VERSION=\"${MINOR_VERSION}\" -DMID_VERSION=\"${MID_VERSION}\"
        -DMAJOR_VERSION=\"${MAJOR_VESION}\")

# -l
target_link_libraries(${PROJ} ${${PROJ}_LIBRARIES} -lm)

# Installation of the program
INSTALL(TARGETS ${PROJ} DESTINATION "bin")
