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-#.rst:
-# GetPrerequisites
-# ----------------
-#
-# Functions to analyze and list executable file prerequisites.
-#
-# This module provides functions to list the .dll, .dylib or .so files
-# that an executable or shared library file depends on. (Its
-# prerequisites.)
-#
-# It uses various tools to obtain the list of required shared library
-# files:
-#
-# ::
-#
-# dumpbin (Windows)
-# objdump (MinGW on Windows)
-# ldd (Linux/Unix)
-# otool (Mac OSX)
-#
-# The following functions are provided by this module:
-#
-# ::
-#
-# get_prerequisites
-# list_prerequisites
-# list_prerequisites_by_glob
-# gp_append_unique
-# is_file_executable
-# gp_item_default_embedded_path
-# (projects can override with gp_item_default_embedded_path_override)
-# gp_resolve_item
-# (projects can override with gp_resolve_item_override)
-# gp_resolved_file_type
-# (projects can override with gp_resolved_file_type_override)
-# gp_file_type
-#
-# Requires CMake 2.6 or greater because it uses function, break, return
-# and PARENT_SCOPE.
-#
-# ::
-#
-# GET_PREREQUISITES(<target> <prerequisites_var> <exclude_system> <recurse>
-# <exepath> <dirs> [<rpaths>])
-#
-# Get the list of shared library files required by <target>. The list
-# in the variable named <prerequisites_var> should be empty on first
-# entry to this function. On exit, <prerequisites_var> will contain the
-# list of required shared library files.
-#
-# <target> is the full path to an executable file. <prerequisites_var>
-# is the name of a CMake variable to contain the results.
-# <exclude_system> must be 0 or 1 indicating whether to include or
-# exclude "system" prerequisites. If <recurse> is set to 1 all
-# prerequisites will be found recursively, if set to 0 only direct
-# prerequisites are listed. <exepath> is the path to the top level
-# executable used for @executable_path replacment on the Mac. <dirs> is
-# a list of paths where libraries might be found: these paths are
-# searched first when a target without any path info is given. Then
-# standard system locations are also searched: PATH, Framework
-# locations, /usr/lib...
-#
-# ::
-#
-# LIST_PREREQUISITES(<target> [<recurse> [<exclude_system> [<verbose>]]])
-#
-# Print a message listing the prerequisites of <target>.
-#
-# <target> is the name of a shared library or executable target or the
-# full path to a shared library or executable file. If <recurse> is set
-# to 1 all prerequisites will be found recursively, if set to 0 only
-# direct prerequisites are listed. <exclude_system> must be 0 or 1
-# indicating whether to include or exclude "system" prerequisites. With
-# <verbose> set to 0 only the full path names of the prerequisites are
-# printed, set to 1 extra informatin will be displayed.
-#
-# ::
-#
-# LIST_PREREQUISITES_BY_GLOB(<glob_arg> <glob_exp>)
-#
-# Print the prerequisites of shared library and executable files
-# matching a globbing pattern. <glob_arg> is GLOB or GLOB_RECURSE and
-# <glob_exp> is a globbing expression used with "file(GLOB" or
-# "file(GLOB_RECURSE" to retrieve a list of matching files. If a
-# matching file is executable, its prerequisites are listed.
-#
-# Any additional (optional) arguments provided are passed along as the
-# optional arguments to the list_prerequisites calls.
-#
-# ::
-#
-# GP_APPEND_UNIQUE(<list_var> <value>)
-#
-# Append <value> to the list variable <list_var> only if the value is
-# not already in the list.
-#
-# ::
-#
-# IS_FILE_EXECUTABLE(<file> <result_var>)
-#
-# Return 1 in <result_var> if <file> is a binary executable, 0
-# otherwise.
-#
-# ::
-#
-# GP_ITEM_DEFAULT_EMBEDDED_PATH(<item> <default_embedded_path_var>)
-#
-# Return the path that others should refer to the item by when the item
-# is embedded inside a bundle.
-#
-# Override on a per-project basis by providing a project-specific
-# gp_item_default_embedded_path_override function.
-#
-# ::
-#
-# GP_RESOLVE_ITEM(<context> <item> <exepath> <dirs> <resolved_item_var>
-# [<rpaths>])
-#
-# Resolve an item into an existing full path file.
-#
-# Override on a per-project basis by providing a project-specific
-# gp_resolve_item_override function.
-#
-# ::
-#
-# GP_RESOLVED_FILE_TYPE(<original_file> <file> <exepath> <dirs> <type_var>
-# [<rpaths>])
-#
-# Return the type of <file> with respect to <original_file>. String
-# describing type of prerequisite is returned in variable named
-# <type_var>.
-#
-# Use <exepath> and <dirs> if necessary to resolve non-absolute <file>
-# values -- but only for non-embedded items.
-#
-# Possible types are:
-#
-# ::
-#
-# system
-# local
-# embedded
-# other
-#
-# Override on a per-project basis by providing a project-specific
-# gp_resolved_file_type_override function.
-#
-# ::
-#
-# GP_FILE_TYPE(<original_file> <file> <type_var>)
-#
-# Return the type of <file> with respect to <original_file>. String
-# describing type of prerequisite is returned in variable named
-# <type_var>.
-#
-# Possible types are:
-#
-# ::
-#
-# system
-# local
-# embedded
-# other
-
-#=============================================================================
-# Copyright 2008-2009 Kitware, Inc.
-#
-# 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.)
-
-function(gp_append_unique list_var value)
- set(contains 0)
-
- foreach(item ${${list_var}})
- if(item STREQUAL "${value}")
- set(contains 1)
- break()
- endif()
- endforeach()
-
- if(NOT contains)
- set(${list_var} ${${list_var}} "${value}" PARENT_SCOPE)
- endif()
-endfunction()
-
-
-function(is_file_executable file result_var)
- #
- # A file is not executable until proven otherwise:
- #
- set(${result_var} 0 PARENT_SCOPE)
-
- get_filename_component(file_full "${file}" ABSOLUTE)
- string(TOLOWER "${file_full}" file_full_lower)
-
- # If file name ends in .exe on Windows, *assume* executable:
- #
- if(WIN32 AND NOT UNIX)
- if("${file_full_lower}" MATCHES "\\.exe$")
- set(${result_var} 1 PARENT_SCOPE)
- return()
- endif()
-
- # A clause could be added here that uses output or return value of dumpbin
- # to determine ${result_var}. In 99%+? practical cases, the exe name
- # match will be sufficient...
- #
- endif()
-
- # Use the information returned from the Unix shell command "file" to
- # determine if ${file_full} should be considered an executable file...
- #
- # If the file command's output contains "executable" and does *not* contain
- # "text" then it is likely an executable suitable for prerequisite analysis
- # via the get_prerequisites macro.
- #
- if(UNIX)
- if(NOT file_cmd)
- find_program(file_cmd "file")
- mark_as_advanced(file_cmd)
- endif()
-
- if(file_cmd)
- execute_process(COMMAND "${file_cmd}" "${file_full}"
- OUTPUT_VARIABLE file_ov
- OUTPUT_STRIP_TRAILING_WHITESPACE
- )
-
- # Replace the name of the file in the output with a placeholder token
- # (the string " _file_full_ ") so that just in case the path name of
- # the file contains the word "text" or "executable" we are not fooled
- # into thinking "the wrong thing" because the file name matches the
- # other 'file' command output we are looking for...
- #
- string(REPLACE "${file_full}" " _file_full_ " file_ov "${file_ov}")
- string(TOLOWER "${file_ov}" file_ov)
-
- #message(STATUS "file_ov='${file_ov}'")
- if("${file_ov}" MATCHES "executable")
- #message(STATUS "executable!")
- if("${file_ov}" MATCHES "text")
- #message(STATUS "but text, so *not* a binary executable!")
- else()
- set(${result_var} 1 PARENT_SCOPE)
- return()
- endif()
- endif()
-
- # Also detect position independent executables on Linux,
- # where "file" gives "shared object ... (uses shared libraries)"
- if("${file_ov}" MATCHES "shared object.*\(uses shared libs\)")
- set(${result_var} 1 PARENT_SCOPE)
- return()
- endif()
-
- else()
- message(STATUS "warning: No 'file' command, skipping execute_process...")
- endif()
- endif()
-endfunction()
-
-
-function(gp_item_default_embedded_path item default_embedded_path_var)
-
- # On Windows and Linux, "embed" prerequisites in the same directory
- # as the executable by default:
- #
- set(path "@executable_path")
- set(overridden 0)
-
- # On the Mac, relative to the executable depending on the type
- # of the thing we are embedding:
- #
- if(APPLE)
- #
- # The assumption here is that all executables in the bundle will be
- # in same-level-directories inside the bundle. The parent directory
- # of an executable inside the bundle should be MacOS or a sibling of
- # MacOS and all embedded paths returned from here will begin with
- # "@executable_path/../" and will work from all executables in all
- # such same-level-directories inside the bundle.
- #
-
- # By default, embed things right next to the main bundle executable:
- #
- set(path "@executable_path/../../Contents/MacOS")
-
- # Embed .dylibs right next to the main bundle executable:
- #
- if(item MATCHES "\\.dylib$")
- set(path "@executable_path/../MacOS")
- set(overridden 1)
- endif()
-
- # Embed frameworks in the embedded "Frameworks" directory (sibling of MacOS):
- #
- if(NOT overridden)
- if(item MATCHES "[^/]+\\.framework/")
- set(path "@executable_path/../Frameworks")
- set(overridden 1)
- endif()
- endif()
- endif()
-
- # Provide a hook so that projects can override the default embedded location
- # of any given library by whatever logic they choose:
- #
- if(COMMAND gp_item_default_embedded_path_override)
- gp_item_default_embedded_path_override("${item}" path)
- endif()
-
- set(${default_embedded_path_var} "${path}" PARENT_SCOPE)
-endfunction()
-
-
-function(gp_resolve_item context item exepath dirs resolved_item_var)
- set(resolved 0)
- set(resolved_item "${item}")
- set(rpaths "${ARGV5}")
-
- # Is it already resolved?
- #
- if(IS_ABSOLUTE "${resolved_item}" AND EXISTS "${resolved_item}")
- set(resolved 1)
- endif()
-
- if(NOT resolved)
- if(item MATCHES "^@executable_path")
- #
- # @executable_path references are assumed relative to exepath
- #
- string(REPLACE "@executable_path" "${exepath}" ri "${item}")
- get_filename_component(ri "${ri}" ABSOLUTE)
-
- if(EXISTS "${ri}")
- #message(STATUS "info: embedded item exists (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- else()
- message(STATUS "warning: embedded item does not exist '${ri}'")
- endif()
- endif()
- endif()
-
- if(NOT resolved)
- if(item MATCHES "^@loader_path")
- #
- # @loader_path references are assumed relative to the
- # PATH of the given "context" (presumably another library)
- #
- get_filename_component(contextpath "${context}" PATH)
- string(REPLACE "@loader_path" "${contextpath}" ri "${item}")
- get_filename_component(ri "${ri}" ABSOLUTE)
-
- if(EXISTS "${ri}")
- #message(STATUS "info: embedded item exists (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- else()
- message(STATUS "warning: embedded item does not exist '${ri}'")
- endif()
- endif()
- endif()
-
- if(NOT resolved)
- if(item MATCHES "^@rpath")
- #
- # @rpath references are relative to the paths built into the binaries with -rpath
- # We handle this case like we do for other Unixes
- #
- string(REPLACE "@rpath/" "" norpath_item "${item}")
-
- set(ri "ri-NOTFOUND")
- find_file(ri "${norpath_item}" ${exepath} ${dirs} ${rpaths} NO_DEFAULT_PATH)
- if(ri)
- #message(STATUS "info: 'find_file' in exepath/dirs/rpaths (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- set(ri "ri-NOTFOUND")
- endif()
-
- endif()
- endif()
-
- if(NOT resolved)
- set(ri "ri-NOTFOUND")
- find_file(ri "${item}" ${exepath} ${dirs} NO_DEFAULT_PATH)
- find_file(ri "${item}" ${exepath} ${dirs} /usr/lib)
- if(ri)
- #message(STATUS "info: 'find_file' in exepath/dirs (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- set(ri "ri-NOTFOUND")
- endif()
- endif()
-
- if(NOT resolved)
- if(item MATCHES "[^/]+\\.framework/")
- set(fw "fw-NOTFOUND")
- find_file(fw "${item}"
- "~/Library/Frameworks"
- "/Library/Frameworks"
- "/System/Library/Frameworks"
- )
- if(fw)
- #message(STATUS "info: 'find_file' found framework (${fw})")
- set(resolved 1)
- set(resolved_item "${fw}")
- set(fw "fw-NOTFOUND")
- endif()
- endif()
- endif()
-
- # Using find_program on Windows will find dll files that are in the PATH.
- # (Converting simple file names into full path names if found.)
- #
- if(WIN32 AND NOT UNIX)
- if(NOT resolved)
- set(ri "ri-NOTFOUND")
- find_program(ri "${item}" PATHS "${exepath};${dirs}" NO_DEFAULT_PATH)
- find_program(ri "${item}" PATHS "${exepath};${dirs}")
- if(ri)
- #message(STATUS "info: 'find_program' in exepath/dirs (${ri})")
- set(resolved 1)
- set(resolved_item "${ri}")
- set(ri "ri-NOTFOUND")
- endif()
- endif()
- endif()
-
- # Provide a hook so that projects can override item resolution
- # by whatever logic they choose:
- #
- if(COMMAND gp_resolve_item_override)
- gp_resolve_item_override("${context}" "${item}" "${exepath}" "${dirs}" resolved_item resolved)
- endif()
-
- if(NOT resolved)
- message(STATUS "
-warning: cannot resolve item '${item}'
-
- possible problems:
- need more directories?
- need to use InstallRequiredSystemLibraries?
- run in install tree instead of build tree?
-")
-# message(STATUS "
-#******************************************************************************
-#warning: cannot resolve item '${item}'
-#
-# possible problems:
-# need more directories?
-# need to use InstallRequiredSystemLibraries?
-# run in install tree instead of build tree?
-#
-# context='${context}'
-# item='${item}'
-# exepath='${exepath}'
-# dirs='${dirs}'
-# resolved_item_var='${resolved_item_var}'
-#******************************************************************************
-#")
- endif()
-
- set(${resolved_item_var} "${resolved_item}" PARENT_SCOPE)
-endfunction()
-
-
-function(gp_resolved_file_type original_file file exepath dirs type_var)
- set(rpaths "${ARGV5}")
- #message(STATUS "**")
-
- if(NOT IS_ABSOLUTE "${original_file}")
- message(STATUS "warning: gp_resolved_file_type expects absolute full path for first arg original_file")
- endif()
-
- set(is_embedded 0)
- set(is_local 0)
- set(is_system 0)
-
- set(resolved_file "${file}")
-
- if("${file}" MATCHES "^@(executable|loader)_path")
- set(is_embedded 1)
- endif()
-
- if(NOT is_embedded)
- if(NOT IS_ABSOLUTE "${file}")
- gp_resolve_item("${original_file}" "${file}" "${exepath}" "${dirs}" resolved_file "${rpaths}")
- endif()
-
- string(TOLOWER "${original_file}" original_lower)
- string(TOLOWER "${resolved_file}" lower)
-
- if(UNIX)
- if(resolved_file MATCHES "^(/lib/|/lib32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/lib64/|/usr/X11R6/|/usr/bin/)")
- set(is_system 1)
- endif()
- endif()
-
- if(APPLE)
- if(resolved_file MATCHES "^(/System/Library/|/usr/lib/)")
- set(is_system 1)
- endif()
- endif()
-
- if(WIN32)
- string(TOLOWER "$ENV{SystemRoot}" sysroot)
- file(TO_CMAKE_PATH "${sysroot}" sysroot)
-
- string(TOLOWER "$ENV{windir}" windir)
- file(TO_CMAKE_PATH "${windir}" windir)
-
- if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*msvc[^/]+dll)")
- set(is_system 1)
- endif()
-
- if(UNIX)
- # if cygwin, we can get the properly formed windows paths from cygpath
- find_program(CYGPATH_EXECUTABLE cygpath)
-
- if(CYGPATH_EXECUTABLE)
- execute_process(COMMAND ${CYGPATH_EXECUTABLE} -W
- OUTPUT_VARIABLE env_windir
- OUTPUT_STRIP_TRAILING_WHITESPACE)
- execute_process(COMMAND ${CYGPATH_EXECUTABLE} -S
- OUTPUT_VARIABLE env_sysdir
- OUTPUT_STRIP_TRAILING_WHITESPACE)
- string(TOLOWER "${env_windir}" windir)
- string(TOLOWER "${env_sysdir}" sysroot)
-
- if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*msvc[^/]+dll)")
- set(is_system 1)
- endif()
- endif()
- endif()
- endif()
-
- if(NOT is_system)
- get_filename_component(original_path "${original_lower}" PATH)
- get_filename_component(path "${lower}" PATH)
- if(original_path STREQUAL path)
- set(is_local 1)
- else()
- string(LENGTH "${original_path}/" original_length)
- string(LENGTH "${lower}" path_length)
- if(${path_length} GREATER ${original_length})
- string(SUBSTRING "${lower}" 0 ${original_length} path)
- if("${original_path}/" STREQUAL path)
- set(is_embedded 1)
- endif()
- endif()
- endif()
- endif()
- endif()
-
- # Return type string based on computed booleans:
- #
- set(type "other")
-
- if(is_system)
- set(type "system")
- elseif(is_embedded)
- set(type "embedded")
- elseif(is_local)
- set(type "local")
- endif()
-
- #message(STATUS "gp_resolved_file_type: '${file}' '${resolved_file}'")
- #message(STATUS " type: '${type}'")
-
- if(NOT is_embedded)
- if(NOT IS_ABSOLUTE "${resolved_file}")
- if(lower MATCHES "^msvc[^/]+dll" AND is_system)
- message(STATUS "info: non-absolute msvc file '${file}' returning type '${type}'")
- else()
- message(STATUS "warning: gp_resolved_file_type non-absolute file '${file}' returning type '${type}' -- possibly incorrect")
- endif()
- endif()
- endif()
-
- # Provide a hook so that projects can override the decision on whether a
- # library belongs to the system or not by whatever logic they choose:
- #
- if(COMMAND gp_resolved_file_type_override)
- gp_resolved_file_type_override("${resolved_file}" type)
- endif()
-
- set(${type_var} "${type}" PARENT_SCOPE)
-
- #message(STATUS "**")
-endfunction()
-
-
-function(gp_file_type original_file file type_var)
- if(NOT IS_ABSOLUTE "${original_file}")
- message(STATUS "warning: gp_file_type expects absolute full path for first arg original_file")
- endif()
-
- get_filename_component(exepath "${original_file}" PATH)
-
- set(type "")
- gp_resolved_file_type("${original_file}" "${file}" "${exepath}" "" type)
-
- set(${type_var} "${type}" PARENT_SCOPE)
-endfunction()
-
-
-function(get_prerequisites target prerequisites_var exclude_system recurse exepath dirs)
- set(verbose 0)
- set(eol_char "E")
- set(rpaths "${ARGV6}")
-
- if(NOT IS_ABSOLUTE "${target}")
- message("warning: target '${target}' is not absolute...")
- endif()
-
- if(NOT EXISTS "${target}")
- message("warning: target '${target}' does not exist...")
- endif()
-
- set(gp_cmd_paths ${gp_cmd_paths}
- "C:/Program Files/Microsoft Visual Studio 9.0/VC/bin"
- "C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin"
- "C:/Program Files/Microsoft Visual Studio 8/VC/BIN"
- "C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN"
- "C:/Program Files/Microsoft Visual Studio .NET 2003/VC7/BIN"
- "C:/Program Files (x86)/Microsoft Visual Studio .NET 2003/VC7/BIN"
- "/usr/local/bin"
- "/usr/bin"
- )
-
- # <setup-gp_tool-vars>
- #
- # Try to choose the right tool by default. Caller can set gp_tool prior to
- # calling this function to force using a different tool.
- #
- if(NOT gp_tool)
- set(gp_tool "ldd")
-
- if(APPLE)
- set(gp_tool "otool")
- endif()
-
- if(WIN32 AND NOT UNIX) # This is how to check for cygwin, har!
- find_program(gp_dumpbin "dumpbin" PATHS ${gp_cmd_paths})
- if(gp_dumpbin)
- set(gp_tool "dumpbin")
- else() # Try harder. Maybe we're on MinGW
- set(gp_tool "objdump")
- endif()
- endif()
- endif()
-
- find_program(gp_cmd ${gp_tool} PATHS ${gp_cmd_paths})
-
- if(NOT gp_cmd)
- message(STATUS "warning: could not find '${gp_tool}' - cannot analyze prerequisites...")
- return()
- endif()
-
- if(gp_tool STREQUAL "ldd")
- set(gp_cmd_args "")
- set(gp_regex "^[\t ]*[^\t ]+ => ([^\t\(]+) .*${eol_char}$")
- set(gp_regex_error "not found${eol_char}$")
- set(gp_regex_fallback "^[\t ]*([^\t ]+) => ([^\t ]+).*${eol_char}$")
- set(gp_regex_cmp_count 1)
- elseif(gp_tool STREQUAL "otool")
- set(gp_cmd_args "-L")
- set(gp_regex "^\t([^\t]+) \\(compatibility version ([0-9]+.[0-9]+.[0-9]+), current version ([0-9]+.[0-9]+.[0-9]+)\\)${eol_char}$")
- set(gp_regex_error "")
- set(gp_regex_fallback "")
- set(gp_regex_cmp_count 3)
- elseif(gp_tool STREQUAL "dumpbin")
- set(gp_cmd_args "/dependents")
- set(gp_regex "^ ([^ ].*[Dd][Ll][Ll])${eol_char}$")
- set(gp_regex_error "")
- set(gp_regex_fallback "")
- set(gp_regex_cmp_count 1)
- elseif(gp_tool STREQUAL "objdump")
- set(gp_cmd_args "-p")
- set(gp_regex "^\t*DLL Name: (.*\\.[Dd][Ll][Ll])${eol_char}$")
- set(gp_regex_error "")
- set(gp_regex_fallback "")
- set(gp_regex_cmp_count 1)
- else()
- message(STATUS "warning: gp_tool='${gp_tool}' is an unknown tool...")
- message(STATUS "CMake function get_prerequisites needs more code to handle '${gp_tool}'")
- message(STATUS "Valid gp_tool values are dumpbin, ldd, objdump and otool.")
- return()
- endif()
-
-
- if(gp_tool STREQUAL "dumpbin")
- # When running dumpbin, it also needs the "Common7/IDE" directory in the
- # PATH. It will already be in the PATH if being run from a Visual Studio
- # command prompt. Add it to the PATH here in case we are running from a
- # different command prompt.
- #
- get_filename_component(gp_cmd_dir "${gp_cmd}" PATH)
- get_filename_component(gp_cmd_dlls_dir "${gp_cmd_dir}/../../Common7/IDE" ABSOLUTE)
- # Use cmake paths as a user may have a PATH element ending with a backslash.
- # This will escape the list delimiter and create havoc!
- if(EXISTS "${gp_cmd_dlls_dir}")
- # only add to the path if it is not already in the path
- set(gp_found_cmd_dlls_dir 0)
- file(TO_CMAKE_PATH "$ENV{PATH}" env_path)
- foreach(gp_env_path_element ${env_path})
- if(gp_env_path_element STREQUAL gp_cmd_dlls_dir)
- set(gp_found_cmd_dlls_dir 1)
- endif()
- endforeach()
-
- if(NOT gp_found_cmd_dlls_dir)
- file(TO_NATIVE_PATH "${gp_cmd_dlls_dir}" gp_cmd_dlls_dir)
- set(ENV{PATH} "$ENV{PATH};${gp_cmd_dlls_dir}")
- endif()
- endif()
- endif()
- #
- # </setup-gp_tool-vars>
-
- if(gp_tool STREQUAL "ldd")
- set(old_ld_env "$ENV{LD_LIBRARY_PATH}")
- set(new_ld_env "${exepath}")
- foreach(dir ${dirs})
- set(new_ld_env "${new_ld_env}:${dir}")
- endforeach()
- set(ENV{LD_LIBRARY_PATH} "${new_ld_env}:$ENV{LD_LIBRARY_PATH}")
- endif()
-
-
- # Track new prerequisites at each new level of recursion. Start with an
- # empty list at each level:
- #
- set(unseen_prereqs)
-
- # Run gp_cmd on the target:
- #
- execute_process(
- COMMAND ${gp_cmd} ${gp_cmd_args} ${target}
- OUTPUT_VARIABLE gp_cmd_ov
- )
-
- if(gp_tool STREQUAL "ldd")
- set(ENV{LD_LIBRARY_PATH} "${old_ld_env}")
- endif()
-
- if(verbose)
- message(STATUS "<RawOutput cmd='${gp_cmd} ${gp_cmd_args} ${target}'>")
- message(STATUS "gp_cmd_ov='${gp_cmd_ov}'")
- message(STATUS "</RawOutput>")
- endif()
-
- get_filename_component(target_dir "${target}" PATH)
-
- # Convert to a list of lines:
- #
- string(REPLACE ";" "\\;" candidates "${gp_cmd_ov}")
- string(REPLACE "\n" "${eol_char};" candidates "${candidates}")
-
- # check for install id and remove it from list, since otool -L can include a
- # reference to itself
- set(gp_install_id)
- if(gp_tool STREQUAL "otool")
- execute_process(
- COMMAND otool -D ${target}
- OUTPUT_VARIABLE gp_install_id_ov
- )
- # second line is install name
- string(REGEX REPLACE ".*:\n" "" gp_install_id "${gp_install_id_ov}")
- if(gp_install_id)
- # trim
- string(REGEX MATCH "[^\n ].*[^\n ]" gp_install_id "${gp_install_id}")
- #message("INSTALL ID is \"${gp_install_id}\"")
- endif()
- endif()
-
- # Analyze each line for file names that match the regular expression:
- #
- foreach(candidate ${candidates})
- if("${candidate}" MATCHES "${gp_regex}")
-
- # Extract information from each candidate:
- if(gp_regex_error AND "${candidate}" MATCHES "${gp_regex_error}")
- string(REGEX REPLACE "${gp_regex_fallback}" "\\1" raw_item "${candidate}")
- else()
- string(REGEX REPLACE "${gp_regex}" "\\1" raw_item "${candidate}")
- endif()
-
- if(gp_regex_cmp_count GREATER 1)
- string(REGEX REPLACE "${gp_regex}" "\\2" raw_compat_version "${candidate}")
- string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" compat_major_version "${raw_compat_version}")
- string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" compat_minor_version "${raw_compat_version}")
- string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" compat_patch_version "${raw_compat_version}")
- endif()
-
- if(gp_regex_cmp_count GREATER 2)
- string(REGEX REPLACE "${gp_regex}" "\\3" raw_current_version "${candidate}")
- string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" current_major_version "${raw_current_version}")
- string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" current_minor_version "${raw_current_version}")
- string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" current_patch_version "${raw_current_version}")
- endif()
-
- # Use the raw_item as the list entries returned by this function. Use the
- # gp_resolve_item function to resolve it to an actual full path file if
- # necessary.
- #
- set(item "${raw_item}")
-
- # Add each item unless it is excluded:
- #
- set(add_item 1)
-
- if(item STREQUAL gp_install_id)
- set(add_item 0)
- endif()
-
- if(add_item AND ${exclude_system})
- set(type "")
- gp_resolved_file_type("${target}" "${item}" "${exepath}" "${dirs}" type "${rpaths}")
-
- if(type STREQUAL "system")
- set(add_item 0)
- endif()
- endif()
-
- if(add_item)
- list(LENGTH ${prerequisites_var} list_length_before_append)
- gp_append_unique(${prerequisites_var} "${item}")
- list(LENGTH ${prerequisites_var} list_length_after_append)
-
- if(${recurse})
- # If item was really added, this is the first time we have seen it.
- # Add it to unseen_prereqs so that we can recursively add *its*
- # prerequisites...
- #
- # But first: resolve its name to an absolute full path name such
- # that the analysis tools can simply accept it as input.
- #
- if(NOT list_length_before_append EQUAL list_length_after_append)
- gp_resolve_item("${target}" "${item}" "${exepath}" "${dirs}" resolved_item "${rpaths}")
- set(unseen_prereqs ${unseen_prereqs} "${resolved_item}")
- endif()
- endif()
- endif()
- else()
- if(verbose)
- message(STATUS "ignoring non-matching line: '${candidate}'")
- endif()
- endif()
- endforeach()
-
- list(LENGTH ${prerequisites_var} prerequisites_var_length)
- if(prerequisites_var_length GREATER 0)
- list(SORT ${prerequisites_var})
- endif()
- if(${recurse})
- set(more_inputs ${unseen_prereqs})
- foreach(input ${more_inputs})
- get_prerequisites("${input}" ${prerequisites_var} ${exclude_system} ${recurse} "${exepath}" "${dirs}" "${rpaths}")
- endforeach()
- endif()
-
- set(${prerequisites_var} ${${prerequisites_var}} PARENT_SCOPE)
-endfunction()
-
-
-function(list_prerequisites target)
- if("${ARGV1}" STREQUAL "")
- set(all 1)
- else()
- set(all "${ARGV1}")
- endif()
-
- if("${ARGV2}" STREQUAL "")
- set(exclude_system 0)
- else()
- set(exclude_system "${ARGV2}")
- endif()
-
- if("${ARGV3}" STREQUAL "")
- set(verbose 0)
- else()
- set(verbose "${ARGV3}")
- endif()
-
- set(count 0)
- set(count_str "")
- set(print_count "${verbose}")
- set(print_prerequisite_type "${verbose}")
- set(print_target "${verbose}")
- set(type_str "")
-
- get_filename_component(exepath "${target}" PATH)
-
- set(prereqs "")
- get_prerequisites("${target}" prereqs ${exclude_system} ${all} "${exepath}" "")
-
- if(print_target)
- message(STATUS "File '${target}' depends on:")
- endif()
-
- foreach(d ${prereqs})
- math(EXPR count "${count} + 1")
-
- if(print_count)
- set(count_str "${count}. ")
- endif()
-
- if(print_prerequisite_type)
- gp_file_type("${target}" "${d}" type)
- set(type_str " (${type})")
- endif()
-
- message(STATUS "${count_str}${d}${type_str}")
- endforeach()
-endfunction()
-
-
-function(list_prerequisites_by_glob glob_arg glob_exp)
- message(STATUS "=============================================================================")
- message(STATUS "List prerequisites of executables matching ${glob_arg} '${glob_exp}'")
- message(STATUS "")
- file(${glob_arg} file_list ${glob_exp})
- foreach(f ${file_list})
- is_file_executable("${f}" is_f_executable)
- if(is_f_executable)
- message(STATUS "=============================================================================")
- list_prerequisites("${f}" ${ARGN})
- message(STATUS "")
- endif()
- endforeach()
-endfunction()