Add libbacktrace package

cmake/configs/default.cmake

@@ -326,6 +326,7 @@ hunter_default_version(kbproto VERSION 1.0.7)
 hunter_default_version(lcms VERSION 2.9-p0)
 hunter_default_version(lehrfempp VERSION 0.7.21)
 hunter_default_version(leveldb VERSION 1.22)
+hunter_default_version(libbacktrace VERSION 1.0.0-ca0de051)
 hunter_default_version(libcpuid VERSION 0.4.0)
 hunter_default_version(libdaemon VERSION 0.14)
 hunter_default_version(libdill VERSION 1.6)

cmake/find/Findlibbacktrace.cmake

@@ -0,0 +1,71 @@
+# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
+# file Copyright.txt or https://cmake.org/licensing for details.
+
+#.rst:
+# Findlibbacktrace
+# -------
+#
+# Finds the libbacktrace library
+#
+# This will define the following variables::
+#
+#   libbacktrace_FOUND    - True if the system has the libbacktrace library
+#   libbacktrace_VERSION  - The version of the libbacktrace library which was found
+#
+# and the following imported targets::
+#
+#   libbacktrace::libbacktrace   - The libbacktrace library
+
+find_path(libbacktrace_INCLUDE_DIR
+  NAMES backtrace.h
+  PATHS "${libbacktrace_ROOT}/include"
+)
+
+if(WIN32)
+  set(_libbacktrace_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  set(_libbacktrace_ORIG_CMAKE_FIND_LIBRARY_PREFIXES ${CMAKE_FIND_LIBRARY_PREFIXES})
+  set(CMAKE_FIND_LIBRARY_SUFFIXES .so .a ${CMAKE_FIND_LIBRARY_SUFFIXES})
+  set(CMAKE_FIND_LIBRARY_PREFIXES lib ${CMAKE_FIND_LIBRARY_PREFIXES})
+endif()
+
+find_library(libbacktrace_LIBRARY
+  NAMES backtrace
+  PATHS "${libbacktrace_ROOT}/lib"
+)
+
+if(WIN32)
+  # Restore the original find library ordering
+  set(CMAKE_FIND_LIBRARY_SUFFIXES ${_libbacktrace_ORIG_CMAKE_FIND_LIBRARY_SUFFIXES})
+  set(CMAKE_FIND_LIBRARY_PREFIXES ${_libbacktrace_ORIG_CMAKE_FIND_LIBRARY_PREFIXES})
+endif()
+
+set(libbacktrace_VERSION ${PC_libbacktrace_VERSION})
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(libbacktrace
+  FOUND_VAR libbacktrace_FOUND
+  REQUIRED_VARS
+    libbacktrace_LIBRARY
+    libbacktrace_INCLUDE_DIR
+  VERSION_VAR libbacktrace_VERSION
+)
+
+if(libbacktrace_FOUND)
+  set(libbacktrace_LIBRARIES ${libbacktrace_LIBRARY})
+  set(libbacktrace_INCLUDE_DIRS ${libbacktrace_INCLUDE_DIR})
+  set(libbacktrace_DEFINITIONS ${PC_libbacktrace_CFLAGS_OTHER})
+endif()
+
+if(libbacktrace_FOUND AND NOT TARGET libbacktrace::libbacktrace)
+  add_library(libbacktrace::libbacktrace UNKNOWN IMPORTED)
+  set_target_properties(libbacktrace::libbacktrace PROPERTIES
+    IMPORTED_LOCATION "${libbacktrace_LIBRARY}"
+    INTERFACE_COMPILE_OPTIONS "${PC_libbacktrace_CFLAGS_OTHER}"
+    INTERFACE_INCLUDE_DIRECTORIES "${libbacktrace_INCLUDE_DIR}"
+  )
+endif()
+
+mark_as_advanced(
+  libbacktrace_INCLUDE_DIR
+  libbacktrace_LIBRARY
+)

cmake/projects/libbacktrace/hunter.cmake

@@ -0,0 +1,28 @@
+# !!! DO NOT PLACE HEADER GUARDS HERE !!!
+
+include(hunter_add_version)
+include(hunter_cacheable)
+include(hunter_configuration_types)
+include(hunter_download)
+include(hunter_pick_scheme)
+
+hunter_add_version(
+    PACKAGE_NAME
+    libbacktrace
+    VERSION
+    1.0.0-ca0de051
+    URL
+    "https://github.com/ianlancetaylor/libbacktrace/archive/ca0de0517f3be44fedf5a2c01cfaf6437d4cae68.tar.gz"
+    SHA1
+    7c7db4d096d96f329c453fb97b7a456fe823e943
+)
+
+hunter_configuration_types(libbacktrace CONFIGURATION_TYPES Release)
+hunter_pick_scheme(DEFAULT url_sha1_autotools)
+hunter_cacheable(libbacktrace)
+hunter_download(
+    PACKAGE_NAME libbacktrace
+    PACKAGE_INTERNAL_DEPS_ID "1"
+     PACKAGE_UNRELOCATABLE_TEXT_FILES
+     "lib/libbacktrace.la"
+)

docs/packages/pkg/libbacktrace.rst

@@ -0,0 +1,20 @@
+.. spelling::
+
+    libbacktrace
+
+.. index::
+  single: Logging ; libbacktrace
+
+.. _pkg.libbacktrace:
+
+libbacktrace
+============
+
+-  `Official <https://github.com/ianlancetaylor/libbacktrace>`__
+-  `Example <https://github.com/cpp-pm/hunter/blob/master/examples/libbacktrace/CMakeLists.txt>`__
+-  Added by `Joerg-Christian Boehme <https://github.com/Bjoe>`__ (`pr-174 <https://github.com/cpp-pm/hunter/pull/174>`__)
+
+.. literalinclude:: /../examples/libbacktrace/CMakeLists.txt
+  :language: cmake
+  :start-after: # DOCUMENTATION_START {
+  :end-before: # DOCUMENTATION_END }

examples/libbacktrace/CMakeLists.txt

@@ -0,0 +1,18 @@
+# Copyright (c)
+# All rights reserved.
+
+cmake_minimum_required(VERSION 3.2)
+
+# Emulate HunterGate:
+# * https://github.com/cpp-pm/gate
+include("../common.cmake")
+
+project(download-libbacktrace)
+
+# DOCUMENTATION_START {
+hunter_add_package(libbacktrace)
+find_package(libbacktrace REQUIRED)
+
+add_executable(boo boo.cpp)
+target_link_libraries(boo PUBLIC libbacktrace::libbacktrace)
+# DOCUMENTATION_END }

examples/libbacktrace/boo.cpp

@@ -0,0 +1,6 @@
+#include <backtrace.h>
+
+int main() {
+    backtrace_state* state = nullptr;
+    return 0;
+}