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mirror of https://github.com/monero-project/monero-gui synced 2024-12-25 01:53:43 +01:00
monero-gui/cmake/FindBacktrace.cmake
TheCharlatan 8dd2a20ff8 Migrate build system to cmake
The content in this commit is not split in order to preserve working
compilation. Once this is added to master, the old build script will no
longer work and all existing build toolings will require changes.

Monero's cmake directory's files need to be copied to this project's cmake
directory in order for the linking and function definitions to work correctly.

Monero-gui has its own version check and generate file in order to not
conflict with monero's destination version files.

Most of the source files that are currently in monero-gui's root
directory are now moved to subdirectories. This is done to preserve
compilation order properly and to give some content structure.

The original CMakeList file included all headers it found in
subdirectories. Make sure that they are set manually to evade linking
errors.

The current build script always checks out latest master of the monero
submodule. The submodule rules in the current CMakeLists.txt file do not
enforce. An override to compile master nevertheless can still be given
with `-D DEV_MODE`.

To enable the linux X11 xcb linking the libraries had to be hardcoded. There
does not seem to be good support for this in pkgconfig, or in
existing cmake checks.
2019-11-27 22:59:27 +01:00

99 lines
3.5 KiB
CMake

# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#.rst:
# FindBacktrace
# -------------
#
# Find provider for backtrace(3).
#
# Checks if OS supports backtrace(3) via either libc or custom library.
# This module defines the following variables:
#
# ``Backtrace_HEADER``
# The header file needed for backtrace(3). Cached.
# Could be forcibly set by user.
# ``Backtrace_INCLUDE_DIRS``
# The include directories needed to use backtrace(3) header.
# ``Backtrace_LIBRARIES``
# The libraries (linker flags) needed to use backtrace(3), if any.
# ``Backtrace_FOUND``
# Is set if and only if backtrace(3) support detected.
#
# The following cache variables are also available to set or use:
#
# ``Backtrace_LIBRARY``
# The external library providing backtrace, if any.
# ``Backtrace_INCLUDE_DIR``
# The directory holding the backtrace(3) header.
#
# Typical usage is to generate of header file using configure_file() with the
# contents like the following::
#
# #cmakedefine01 Backtrace_FOUND
# #if Backtrace_FOUND
# # include <${Backtrace_HEADER}>
# #endif
#
# And then reference that generated header file in actual source.
include(CMakePushCheckState)
include(CheckSymbolExists)
include(FindPackageHandleStandardArgs)
# List of variables to be provided to find_package_handle_standard_args()
set(_Backtrace_STD_ARGS Backtrace_INCLUDE_DIR)
if(Backtrace_HEADER)
set(_Backtrace_HEADER_TRY "${Backtrace_HEADER}")
else(Backtrace_HEADER)
set(_Backtrace_HEADER_TRY "execinfo.h")
endif(Backtrace_HEADER)
find_path(Backtrace_INCLUDE_DIR "${_Backtrace_HEADER_TRY}")
set(Backtrace_INCLUDE_DIRS ${Backtrace_INCLUDE_DIR})
if (NOT DEFINED Backtrace_LIBRARY)
# First, check if we already have backtrace(), e.g., in libc
cmake_push_check_state(RESET)
set(CMAKE_REQUIRED_INCLUDES ${Backtrace_INCLUDE_DIRS})
set(CMAKE_REQUIRED_QUIET ${Backtrace_FIND_QUIETLY})
check_symbol_exists("backtrace" "${_Backtrace_HEADER_TRY}" _Backtrace_SYM_FOUND)
cmake_pop_check_state()
endif()
if(_Backtrace_SYM_FOUND)
# Avoid repeating the message() call below each time CMake is run.
if(NOT Backtrace_FIND_QUIETLY AND NOT DEFINED Backtrace_LIBRARY)
message(STATUS "backtrace facility detected in default set of libraries")
endif()
set(Backtrace_LIBRARY "" CACHE FILEPATH "Library providing backtrace(3), empty for default set of libraries")
else()
# Check for external library, for non-glibc systems
if(Backtrace_INCLUDE_DIR)
# OpenBSD has libbacktrace renamed to libexecinfo
find_library(Backtrace_LIBRARY "execinfo")
elseif() # respect user wishes
set(_Backtrace_HEADER_TRY "backtrace.h")
find_path(Backtrace_INCLUDE_DIR ${_Backtrace_HEADER_TRY})
find_library(Backtrace_LIBRARY "backtrace")
endif()
# Prepend list with library path as it's more common practice
set(_Backtrace_STD_ARGS Backtrace_LIBRARY ${_Backtrace_STD_ARGS})
endif()
message(STATUS "Backtrace_LIBRARY: ${Backtrace_LIBRARY}")
if(Backtrace_LIBRARY STREQUAL "NOTFOUND")
set(Backtrace_LIBRARY "")
endif()
if(Backtrace_LIBRARY STREQUAL "Backtrace_LIBRARY-NOTFOUND")
set(Backtrace_LIBRARY "")
endif()
set(Backtrace_LIBRARIES ${Backtrace_LIBRARY})
set(Backtrace_HEADER "${_Backtrace_HEADER_TRY}" CACHE STRING "Header providing backtrace(3) facility")
find_package_handle_standard_args(Backtrace FOUND_VAR Backtrace_FOUND REQUIRED_VARS ${_Backtrace_STD_ARGS})
mark_as_advanced(Backtrace_HEADER Backtrace_INCLUDE_DIR Backtrace_LIBRARY)