/usr/share/cmake-3.0/Modules/FindBacktrace.cmake is in cmake-data 3.0.2-1+deb8u1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 | #.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 <${Backtrace_HEADER}>
# #endif
#
# And then reference that generated header file in actual source.
#=============================================================================
# Copyright 2013 Vadim Zhukov
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
include(CMakePushCheckState)
include(CheckSymbolExists)
include(FindPackageHandleStandardArgs)
# List of variables to be provided to find_package_handle_standard_args()
set(_Backtrace_STD_ARGS Backtrace_INCLUDE_DIR)
if(Backtrace_HEADER)
set(_Backtrace_HEADER_TRY "${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 ${Backtrace_INCLUDE_DIRS})
check_symbol_exists("backtrace" "${_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)
|