Merge pull request #5417

8df82707 Fix linker issues using easylogging (Martijn Otto)
This commit is contained in:
Riccardo Spagni 2019-04-15 09:22:27 +02:00
commit 16b7665533
No known key found for this signature in database
GPG key ID: 55432DF31CCD4FCD
2 changed files with 93 additions and 1 deletions

90
cmake/FindBacktrace.cmake Normal file
View file

@ -0,0 +1,90 @@
# 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()
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)

View file

@ -33,6 +33,7 @@ project(easylogging CXX)
SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
find_package(Threads)
find_package(Backtrace)
add_library(easylogging
easylogging++.cc)
@ -41,7 +42,8 @@ include_directories("${CMAKE_CURRENT_SOURCE_DIR}")
include_directories("${CMAKE_CURRENT_BINARY_DIR}")
target_link_libraries(easylogging
PRIVATE
${CMAKE_THREAD_LIBS_INIT})
${CMAKE_THREAD_LIBS_INIT}
${Backtrace_LIBRARIES})
# GUI/libwallet install target
if (BUILD_GUI_DEPS)