Revision: 77589
http://sourceforge.net/p/brlcad/code/77589
Author: starseeker
Date: 2020-10-23 02:58:46 +0000 (Fri, 23 Oct 2020)
Log Message:
-----------
Add CMakeLists.txt - this file does the common setup and incorporates the
individual project's .cmake files.
Added Paths:
-----------
brlcad/branches/extbuild/src/other/ext/CMakeLists.txt
Added: brlcad/branches/extbuild/src/other/ext/CMakeLists.txt
===================================================================
--- brlcad/branches/extbuild/src/other/ext/CMakeLists.txt
(rev 0)
+++ brlcad/branches/extbuild/src/other/ext/CMakeLists.txt 2020-10-23
02:58:46 UTC (rev 77589)
@@ -0,0 +1,272 @@
+#-----------------------------------------------------------------------
+# Local Copies of External Libraries
+#
+# BRL-CAD depends on a variety of external libraries and tools -
+# rather than fail if those requirements are not satisfied, we build
+# local copies at need.
+#
+# There are three overall approaches to the handling of these
+# dependencies:
+#
+# 1. Auto - detect system libraries and use them if suitable,
+# otherwise build and use the local copy. This is the default
+# approach.
+#
+# 2. Bundled - regardless of system conditions, build and use all
+# bundled libraries.
+#
+# 3. System - fail to build if the system libraries do not satisfy
+# requirements. This is primarily useful for distributions that
+# want to ensure packages are using external libraries.
+#
+# In addition to the broad toplevel control, individual libraries can
+# also be overridden - for example, if the toplevel setting is for
+# Bundled libs, it is still possible to request a system library in
+# individual cases.
+#
+#-----------------------------------------------------------------------
+
+project(BDEPS)
+
+cmake_minimum_required(VERSION 3.14)
+
+# Find the executable extension, if there is one
+get_filename_component(EXE_EXT "${CMAKE_COMMAND}" EXT)
+
+# If targets are built, we want to group them in build tools that support
+# doing so.
+function(SetTargetFolder targetname folder)
+ if(TARGET ${targetname})
+ set_target_properties(${targetname} PROPERTIES FOLDER "${folder}")
+ endif(TARGET ${targetname})
+endfunction(SetTargetFolder)
+
+# If defined, get feature variables from parent
+if (EXISTS ${CMAKE_BINARY_DIR}/brlcad_vars.cmake)
+ include(${CMAKE_BINARY_DIR}/brlcad_vars.cmake)
+endif (EXISTS ${CMAKE_BINARY_DIR}/brlcad_vars.cmake)
+
+# We need some extra functionality for this...
+set(BDEPS_CMAKE_DIR "${CMAKE_CURRENT_SOURCE_DIR}/CMake")
+set(CMAKE_MODULE_PATH "${BDEPS_CMAKE_DIR};${CMAKE_MODULE_PATH}")
+
+# We do not want to search in our install target; on a second
+# configure pass the outputs of previous builds will be detected
+# and mess up the results...
+set(CMAKE_SYSTEM_IGNORE_PATH "${CMAKE_INSTALL_PREFIX}")
+
+# We will build up a list of all include dirs coming from 3rd party
+# projects, so we can include them with -isystem
+unset(SYS_INCLUDE_PATTERNS CACHE)
+
+# For the individual builds to be done here, we need to target their installs
+# to locations in the CMAKE_BINARY_DIR, which is the only place we can be
+# assured of having write access. However, for multiconfig build systems, we
+# need to define per-config output targets so each individual config's build
+# won't stomp on the output from other configs. We also *don't* want to do
+# that for single config builds, where user expectation is that
+# CMAKE_BINARY_DIR is the root for such paths. The $<CONFIG> generator
+# expression lets us set up per-config paths, but as $<CONFIG> is ALSO defined
+# for non-multiconfig builds when CMAKE_BUILD_TYPE is set we need to define
+# $<CONFIG> based paths ONLY when we have CMAKE_CONFIGURATION_TYPES set
+# (which indicates a multiconfig generator is in use.)
+if (CMAKE_CONFIGURATION_TYPES)
+ set(CMAKE_BINARY_ROOT "${CMAKE_BINARY_DIR}/$<CONFIG>")
+else (CMAKE_CONFIGURATION_TYPES)
+ set(CMAKE_BINARY_ROOT "${CMAKE_BINARY_DIR}")
+endif (CMAKE_CONFIGURATION_TYPES)
+
+#---------------------------------------------------------------------
+# Define relative install locations and output directories. Don't set
+# these if they have already been set by some other means (like a
+# higher level CMakeLists.txt file including this one).
+# For output directories - where built library and executable
+# files will be placed after building but prior to install. The
+# necessary variables change between single and multi configuration
+# build systems, so it is necessary to handle both cases on a
+# conditional basis.
+
+include(Path_Setup)
+
+#---------------------------------------------------------------------
+# RPath handling is what allows us to run binaries from the build
+# directory without having to set LD_LIBRARY_PATH, and what allows
+# for relocatable binary packages on Linux and similar platforms.
+# BRL-CAD's needs are rather complex when it comes to RPath, so we
+# define a series of functions:
+if (NOT COMMAND std_build_rpath)
+ include(RPath_Setup)
+endif (NOT COMMAND std_build_rpath)
+
+# We want the full RPATH set in the build tree so we can run programs without
+# needing to set LD_LIBRARY_PATH
+set(CMAKE_SKIP_BUILD_RPATH FALSE)
+
+# We DON'T want the final install directory RPATH set in the build directory
+# - it should only be set to the installation value when actually installed.
+set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
+
+# Add the automatically determined parts of the RPATH which point to
+# directories outside the build tree to the install RPATH
+set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
+
+# Set RPATH value to use when installing. This should be set to always
+# prefer the version in the installed path when possible, but fall back on a
+# location relative to the loading file's path if the installed version is
+# not present. How to do so is platform specific.
+relative_rpath(RELPATH)
+set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/${LIB_DIR}${RELPATH}")
+
+# 3rd party build outputs use a CMAKE_RPATH_BUILD setting that is different
+# from the "vanilla" management used with other BRL-CAD targets. The
+# function below encapsulates the setup needed for CMAKE_RPATH_BUILD
+ext_build_rpath()
+
+
+#---------------------------------------------------------------------
+# By default, changes in src/superbuild files won't trigger a rebuild. Setting
+# this to 1 changes that, but at the expense of running the build step every
+# time. This may be fast if there is nothing to update in the project, but it
+# will be slower than skipping the step completely.
+if (NOT DEFINED EXTERNAL_BUILD_UPDATE)
+ set(EXTERNAL_BUILD_UPDATE 0)
+endif (NOT DEFINED EXTERNAL_BUILD_UPDATE)
+
+# Use this variable to key both CMake messages and tools like rpath_replace
+if(NOT DEFINED EXTPROJ_VERBOSE)
+ set(EXTPROJ_VERBOSE 0)
+endif(NOT DEFINED EXTPROJ_VERBOSE)
+
+# Tool for replacing rpath values in build files
+configure_file(${BDEPS_CMAKE_DIR}/rpath_replace.cxx.in
${CMAKE_CURRENT_BINARY_DIR}/rpath_replace.cxx)
+add_executable(rpath_replace ${CMAKE_CURRENT_BINARY_DIR}/rpath_replace.cxx)
+
+# Independent projects with their own build systems (potentially not CMake
+# based) need ExternalProject_Add
+include(ExternalProject)
+# BRL-CAD defines some additional custom targets used to manage the outputs of
+# ExternalProject_Add targets.
+# Note- make sure CMAKE_BINARY_DIR and CMAKE_INSTALL_PREFIX are finalized
+# BEFORE including this file!
+include(ExternalProject_Target)
+
+# External build outputs can be verbose - capture them to files instead of
+# outputting to console
+#set(LOG_OPTS
+# LOG_DIR "${CMAKE_BINARY_DIR}/CMakeFiles/ExternalProject_logs"
+# LOG_CONFIGURE ON LOG_BUILD ON LOG_INSTALL ON
+# LOG_MERGED_STDOUTERR ON LOG_OUTPUT_ON_FAILURE ON
+# )
+
+set(LOG_OPTS)
+
+# Load some CMake macros to handle the special case of third party libraries.
+include(ThirdParty)
+include(ThirdPartyExecutable)
+
+# In case we need to pass some sort of reasonable parallel
+# flag to a build system, check our processor count
+include(ProcessorCount)
+ProcessorCount(N)
+math(EXPR pcnt "${N} / 2")
+if (NOT pcnt)
+ set(pcnt 1)
+endif (NOT pcnt)
+
+
+# With MSVC, some of the non-CMake subbuilds are going to need the vcvars bat
+# file to set up the environment.
+if(MSVC)
+ get_filename_component(COMPILER_DIR "${CMAKE_C_COMPILER}" DIRECTORY)
+ get_filename_component(COMPILER_ROOT "${COMPILER_DIR}" NAME)
+ set(VCVARS_BAT "${COMPILER_DIR}/vcvars${COMPILER_ROOT}.bat")
+ if(NOT EXISTS "${VCVARS_BAT}")
+ # Try the VS2017 location (https://stackoverflow.com/q/43372235)
+ set(COMPILER_ROOT "")
+ foreach(DIRS RANGE 0 5)
+ get_filename_component(COMPILER_DIR "${COMPILER_DIR}" DIRECTORY)
+ endforeach(DIRS RANGE 0 5)
+ set(COMPILER_DIR "${COMPILER_DIR}/Auxiliary/Build")
+ if(CMAKE_CL_64)
+ set(VCVARS_BAT "${COMPILER_DIR}/vcvars64.bat")
+ else(CMAKE_CL_64)
+ set(VCVARS_BAT "${COMPILER_DIR}/vcvars32.bat")
+ endif(CMAKE_CL_64)
+ if(NOT EXISTS "${VCVARS_BAT}")
+ message(FATAL_ERROR "Could not find vcvars bat file in ${COMPILER_DIR}")
+ endif(NOT EXISTS "${VCVARS_BAT}")
+ endif(NOT EXISTS "${VCVARS_BAT}")
+endif(MSVC)
+
+# TODO - need to set these based on the feature flags...
+set(BRLCAD_LEVEL2 ON)
+set(BRLCAD_LEVEL3 ON)
+
+# TODO - in stand-alone mode, these need to be set to enable the builds...
+#set(BRLCAD_ENABLE_STEP ON)
+#set(BRLCAD_ENABLE_GDAL ON)
+#set(BRLCAD_ENABLE_TCL ON)
+#set(BRLCAD_ENABLE_TK ON)
+
+###############################################################################
+# BRL-CAD and some of its dependencies require the lemon, re2c and perplex
+# tools for compilation. They are not installed, but must be available. We
+# ensure they can be found by building them up front if not present on the
+# system.
+###############################################################################
+
+include(${CMAKE_CURRENT_SOURCE_DIR}/perplex.cmake)
+
+###############################################################################
+# Build logic is broken out per-library, but the ordering is important. Some
+# libraries will depend on others listed here (for example, we want openNURBS
+# to use our bundled zlib if it is enabled.) Developers adding, reordering or
+# removing dependencies here need to make sure they are aware of impact they
+# may be having on other external projects in other files.
+###############################################################################
+
+# zlib compression/decompression library
+include(${CMAKE_CURRENT_SOURCE_DIR}/zlib.cmake)
+
+# libregex regular expression matching
+include(${CMAKE_CURRENT_SOURCE_DIR}/regex.cmake)
+
+# netpbm library - support for pnm,ppm,pbm, etc. image files
+include(${CMAKE_CURRENT_SOURCE_DIR}/netpbm.cmake)
+
+# libpng - Portable Network Graphics image file support
+include(${CMAKE_CURRENT_SOURCE_DIR}/png.cmake)
+
+# STEPcode - support for reading and writing STEP files
+include(${CMAKE_CURRENT_SOURCE_DIR}/stepcode.cmake)
+
+## libbson - for binary attributes, always use this local version
+#include(${CMAKE_CURRENT_SOURCE_DIR}/bson.cmake)
+
+# PROJ4 - generic coordinate transformation
+include(${CMAKE_CURRENT_SOURCE_DIR}/proj4.cmake)
+
+# GDAL - translator library for raster and vector geospatial data formats
+include(${CMAKE_CURRENT_SOURCE_DIR}/gdal.cmake)
+
+# TCL - scripting language. For Tcl/Tk builds we want
+# static lib building on so we get the stub libraries.
+set(BSL_CACHE ${BUILD_STATIC_LIBS})
+set(BUILD_STATIC_LIBS ON)
+include(${CMAKE_CURRENT_SOURCE_DIR}/tcl.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/tk.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/itcl.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/itk.cmake)
+include(${CMAKE_CURRENT_SOURCE_DIR}/iwidgets.cmake)
+set(BUILD_STATIC_LIBS ${BSL_CACHE})
+
+
+std_build_rpath()
+
+# Local Variables:
+# tab-width: 8
+# mode: cmake
+# indent-tabs-mode: t
+# End:
+# ex: shiftwidth=2 tabstop=8
+
Property changes on: brlcad/branches/extbuild/src/other/ext/CMakeLists.txt
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