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cmake_minimum_required(VERSION 3.11)
include(ExternalProject)
project(emacs-libvterm C)
if(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD" OR CMAKE_SYSTEM_NAME STREQUAL "OpenBSD" OR CMAKE_SYSTEM_NAME STREQUAL "NetBSD")
set(LIBVTERM_BUILD_COMMAND "gmake")
else()
set(LIBVTERM_BUILD_COMMAND "make")
endif()
add_library(vterm-module MODULE vterm-module.c utf8.c elisp.c)
set_target_properties(vterm-module PROPERTIES
C_STANDARD 99
C_VISIBILITY_PRESET "hidden"
POSITION_INDEPENDENT_CODE ON
PREFIX ""
LIBRARY_OUTPUT_DIRECTORY ${CMAKE_SOURCE_DIR}
)
# Set RelWithDebInfo as default build type
if (NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "No build type selected, defaulting to RelWithDebInfo")
set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING "Build type (default RelWithDebInfo)" FORCE)
endif()
# Look for the header file.
option(USE_SYSTEM_LIBVTERM "Use system libvterm instead of the vendored version." ON)
# Try to find the libvterm in system.
if (USE_SYSTEM_LIBVTERM)
# try to find the vterm.h header file.
find_path(LIBVTERM_INCLUDE_DIR
NAMES vterm.h
)
# vterm.h is found.
if (LIBVTERM_INCLUDE_DIR)
message(STATUS "System libvterm detected")
execute_process(COMMAND grep -c "VTermStringFragment" "${LIBVTERM_INCLUDE_DIR}/vterm.h" OUTPUT_VARIABLE VTermStringFragmentExists)
if (${VTermStringFragmentExists} EQUAL "0")
# add_compile_definitions(VTermStringFragmentNotExists)
add_definitions(-DVTermStringFragmentNotExists)
endif()
execute_process(COMMAND grep -c "VTermSelectionMask" "${LIBVTERM_INCLUDE_DIR}/vterm.h" OUTPUT_VARIABLE VTermSelectionMaskExists)
if (${VTermSelectionMaskExists} EQUAL "0")
# add_compile_definitions(VTermStringFragmentNotExists)
add_definitions(-DVTermSelectionMaskNotExists)
endif()
execute_process(COMMAND grep -c "sb_clear" "${LIBVTERM_INCLUDE_DIR}/vterm.h" OUTPUT_VARIABLE VTermSBClearExists)
if (${VTermSBClearExists} EQUAL "0")
add_definitions(-DVTermSBClearNotExists)
endif()
else()
message(STATUS "System libvterm not found: libvterm will be downloaded and compiled as part of the build process")
endif()
endif()
if (LIBVTERM_INCLUDE_DIR)
find_library(LIBVTERM_LIBRARY NAMES
vterm
libvterm
)
if(NOT LIBVTERM_LIBRARY)
message(FATAL_ERROR "libvterm not found")
endif()
else()
find_program(LIBTOOL NAMES libtool glibtool)
if(NOT LIBTOOL)
message(FATAL_ERROR "libtool not found. Please install libtool")
endif()
ExternalProject_add(libvterm
GIT_REPOSITORY https://github.com/Sbozzolo/libvterm-mirror.git
GIT_TAG 64f1775952dbe001e989f2ab679563b54f2fca55
CONFIGURE_COMMAND ""
BUILD_COMMAND ${LIBVTERM_BUILD_COMMAND} "CFLAGS='-fPIC'" "LDFLAGS='-static'"
BUILD_IN_SOURCE ON
INSTALL_COMMAND "")
ExternalProject_Get_property(libvterm SOURCE_DIR)
set(LIBVTERM_INCLUDE_DIR ${SOURCE_DIR}/include)
set(LIBVTERM_LIBRARY ${SOURCE_DIR}/.libs/libvterm.a)
add_dependencies(vterm-module libvterm)
# Workaround for https://gitlab.kitware.com/cmake/cmake/issues/15052
file(MAKE_DIRECTORY ${LIBVTERM_INCLUDE_DIR})
endif()
add_library(vterm STATIC IMPORTED)
set_target_properties(vterm PROPERTIES IMPORTED_LOCATION ${LIBVTERM_LIBRARY})
target_include_directories(vterm INTERFACE ${LIBVTERM_INCLUDE_DIR})
# Link with libvterm
target_link_libraries(vterm-module PUBLIC vterm)
# Custom run command for testing
add_custom_target(run
COMMAND emacs -Q -L ${CMAKE_SOURCE_DIR} -L ${CMAKE_BINARY_DIR} --eval "\\(require \\'vterm\\)" --eval "\\(vterm\\)"
DEPENDS vterm-module
)
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