Belated addition of GetPrerequisites_2_8.cmake

1 files changed, 786 insertions, 0 deletions

diff --git a/indra/cmake/GetPrerequisites_2_8.cmake b/indra/cmake/GetPrerequisites_2_8.cmake
new file mode 100644
index 0000000000..5a24842c89
--- /dev/null
+++ b/indra/cmake/GetPrerequisites_2_8.cmake
@@ -0,0 +1,786 @@
+# GetPrerequisites.cmake

+#

+# This script 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)

+#   ldd (Linux/Unix)

+#   otool (Mac OSX)

+#

+# The following functions are provided by this script:

+#   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

+#   gp_file_type

+#   get_prerequisites

+#   list_prerequisites

+#   list_prerequisites_by_glob

+#

+# Requires CMake 2.6 or greater because it uses function, break, return and

+# PARENT_SCOPE.

+

+#=============================================================================

+# 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 distributed this file outside of CMake, substitute the full

+#  License text for the above reference.)

+

+# gp_append_unique list_var value

+#

+# Append value to the list variable ${list_var} only if the value is not

+# already in the list.

+#

+function(gp_append_unique list_var value)

+  set(contains 0)

+

+  foreach(item ${${list_var}})

+    if("${item}" STREQUAL "${value}")

+      set(contains 1)

+      break()

+    endif("${item}" STREQUAL "${value}")

+  endforeach(item)

+

+  if(NOT contains)

+    set(${list_var} ${${list_var}} "${value}" PARENT_SCOPE)

+  endif(NOT contains)

+endfunction(gp_append_unique)

+

+

+# is_file_executable file result_var

+#

+# Return 1 in ${result_var} if ${file} is a binary executable.

+#

+# Return 0 in ${result_var} otherwise.

+#

+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)

+    if("${file_full_lower}" MATCHES "\\.exe$")

+      set(${result_var} 1 PARENT_SCOPE)

+      return()

+    endif("${file_full_lower}" MATCHES "\\.exe$")

+

+    # 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(WIN32)

+

+  # 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")

+    endif(NOT file_cmd)

+

+    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("${file_ov}" MATCHES "text")

+          set(${result_var} 1 PARENT_SCOPE)

+          return()

+        endif("${file_ov}" MATCHES "text")

+      endif("${file_ov}" MATCHES "executable")

+    else(file_cmd)

+      message(STATUS "warning: No 'file' command, skipping execute_process...")

+    endif(file_cmd)

+  endif(UNIX)

+endfunction(is_file_executable)

+

+

+# 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.

+#

+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(item MATCHES "\\.dylib$")

+

+    # 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(item MATCHES "[^/]+\\.framework/")

+    endif(NOT overridden)

+  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(COMMAND gp_item_default_embedded_path_override)

+

+  set(${default_embedded_path_var} "${path}" PARENT_SCOPE)

+endfunction(gp_item_default_embedded_path)

+

+

+# gp_resolve_item context item exepath dirs resolved_item_var

+#

+# 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.

+#

+function(gp_resolve_item context item exepath dirs resolved_item_var)

+  set(resolved 0)

+  set(resolved_item "${item}")

+

+  # Is it already resolved?

+  #

+  if(EXISTS "${resolved_item}")

+    set(resolved 1)

+  endif(EXISTS "${resolved_item}")

+

+  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(EXISTS "${ri}")

+        message(STATUS "warning: embedded item does not exist '${ri}'")

+      endif(EXISTS "${ri}")

+    endif(item MATCHES "@executable_path")

+  endif(NOT resolved)

+

+  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(EXISTS "${ri}")

+        message(STATUS "warning: embedded item does not exist '${ri}'")

+      endif(EXISTS "${ri}")

+    endif(item MATCHES "@loader_path")

+  endif(NOT resolved)

+

+  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(ri)

+  endif(NOT resolved)

+

+  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(fw)

+    endif(item MATCHES "[^/]+\\.framework/")

+  endif(NOT resolved)

+

+  # 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)

+  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(ri)

+  endif(NOT resolved)

+  endif(WIN32)

+

+  # 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(COMMAND gp_resolve_item_override)

+

+  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(NOT resolved)

+

+  set(${resolved_item_var} "${resolved_item}" PARENT_SCOPE)

+endfunction(gp_resolve_item)

+

+

+# gp_resolved_file_type original_file file exepath dirs type_var

+#

+# 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

+#

+function(gp_resolved_file_type original_file file exepath dirs type_var)

+  #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)

+    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/)")

+        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)

+      string(REGEX REPLACE "\\\\" "/" sysroot "${sysroot}")

+

+      string(TOLOWER "$ENV{windir}" windir)

+      string(REGEX REPLACE "\\\\" "/" windir "${windir}")

+

+      if(lower MATCHES "^(${sysroot}/system|${windir}/system|${sysroot}/syswow|${windir}/syswow|(.*/)*msvc[^/]+dll)")

+        set(is_system 1)

+      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)

+      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()

+

+  set(${type_var} "${type}" PARENT_SCOPE)

+

+  #message(STATUS "**")

+endfunction()

+

+

+# 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

+#

+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(gp_file_type)

+

+

+# get_prerequisites target prerequisites_var exclude_system recurse dirs

+#

+# 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 is 0 or 1: 0 to include "system" prerequisites , 1 to

+#   exclude them

+#

+#  recurse is 0 or 1: 0 for direct prerequisites only, 1 for all prerequisites

+#   recursively

+#

+#  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...

+#

+function(get_prerequisites target prerequisites_var exclude_system recurse exepath dirs)

+  set(verbose 0)

+  set(eol_char "E")

+

+  if(NOT IS_ABSOLUTE "${target}")

+    message("warning: target '${target}' is not absolute...")

+  endif(NOT IS_ABSOLUTE "${target}")

+

+  if(NOT EXISTS "${target}")

+    message("warning: target '${target}' does not exist...")

+  endif(NOT EXISTS "${target}")

+

+  # <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("${gp_tool}" STREQUAL "")

+    set(gp_tool "ldd")

+    if(APPLE)

+      set(gp_tool "otool")

+    endif(APPLE)

+    if(WIN32)

+      set(gp_tool "dumpbin")

+    endif(WIN32)

+  endif("${gp_tool}" STREQUAL "")

+

+  set(gp_tool_known 0)

+

+  if("${gp_tool}" STREQUAL "ldd")

+    set(gp_cmd_args "")

+    set(gp_regex "^[\t ]*[^\t ]+ => ([^\t ]+).*${eol_char}$")

+    set(gp_regex_cmp_count 1)

+    set(gp_tool_known 1)

+  endif("${gp_tool}" STREQUAL "ldd")

+

+  if("${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_cmp_count 3)

+    set(gp_tool_known 1)

+  endif("${gp_tool}" STREQUAL "otool")

+

+  if("${gp_tool}" STREQUAL "dumpbin")

+    set(gp_cmd_args "/dependents")

+    set(gp_regex "^    ([^ ].*[Dd][Ll][Ll])${eol_char}$")

+    set(gp_regex_cmp_count 1)

+    set(gp_tool_known 1)

+    set(ENV{VS_UNICODE_OUTPUT} "") # Block extra output from inside VS IDE.

+  endif("${gp_tool}" STREQUAL "dumpbin")

+

+  if(NOT gp_tool_known)

+    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 and otool.")

+    return()

+  endif(NOT gp_tool_known)

+

+  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"

+    )

+

+  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(NOT gp_cmd)

+

+  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)

+    if(EXISTS "${gp_cmd_dlls_dir}")

+      # only add to the path if it is not already in the path

+      if(NOT "$ENV{PATH}" MATCHES "${gp_cmd_dlls_dir}")

+        set(ENV{PATH} "$ENV{PATH};${gp_cmd_dlls_dir}")

+      endif(NOT "$ENV{PATH}" MATCHES "${gp_cmd_dlls_dir}")

+    endif(EXISTS "${gp_cmd_dlls_dir}")

+  endif("${gp_tool}" STREQUAL "dumpbin")

+  #

+  # </setup-gp_tool-vars>

+

+  if("${gp_tool}" STREQUAL "ldd")

+    set(old_ld_env "$ENV{LD_LIBRARY_PATH}")

+    foreach(dir ${exepath} ${dirs})

+      set(ENV{LD_LIBRARY_PATH} "${dir}:$ENV{LD_LIBRARY_PATH}")

+    endforeach(dir)

+  endif("${gp_tool}" STREQUAL "ldd")

+

+

+  # 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("${gp_tool}" STREQUAL "ldd")

+

+  if(verbose)

+    message(STATUS "<RawOutput cmd='${gp_cmd} ${gp_cmd_args} ${target}'>")

+    message(STATUS "gp_cmd_ov='${gp_cmd_ov}'")

+    message(STATUS "</RawOutput>")

+  endif(verbose)

+

+  get_filename_component(target_dir "${target}" PATH)

+

+  # Convert to a list of lines:

+  #

+  string(REGEX REPLACE ";" "\\\\;" candidates "${gp_cmd_ov}")

+  string(REGEX REPLACE "\n" "${eol_char};" candidates "${candidates}")

+

+  # Analyze each line for file names that match the regular expression:

+  #

+  foreach(candidate ${candidates})

+  if("${candidate}" MATCHES "${gp_regex}")

+    # Extract information from each candidate:

+    string(REGEX REPLACE "${gp_regex}" "\\1" raw_item "${candidate}")

+

+    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(gp_regex_cmp_count GREATER 1)

+

+    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(gp_regex_cmp_count GREATER 2)

+

+    # 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(${exclude_system})

+      set(type "")

+      gp_resolved_file_type("${target}" "${item}" "${exepath}" "${dirs}" type)

+      if("${type}" STREQUAL "system")

+        set(add_item 0)

+      endif("${type}" STREQUAL "system")

+    endif(${exclude_system})

+

+    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)

+          set(unseen_prereqs ${unseen_prereqs} "${resolved_item}")

+        endif(NOT list_length_before_append EQUAL list_length_after_append)

+      endif(${recurse})

+    endif(add_item)

+  else("${candidate}" MATCHES "${gp_regex}")

+    if(verbose)

+      message(STATUS "ignoring non-matching line: '${candidate}'")

+    endif(verbose)

+  endif("${candidate}" MATCHES "${gp_regex}")

+  endforeach(candidate)

+

+  list(LENGTH ${prerequisites_var} prerequisites_var_length)

+  if(prerequisites_var_length GREATER 0)

+    list(SORT ${prerequisites_var})

+  endif(prerequisites_var_length GREATER 0)

+  if(${recurse})

+    set(more_inputs ${unseen_prereqs})

+    foreach(input ${more_inputs})

+      get_prerequisites("${input}" ${prerequisites_var} ${exclude_system} ${recurse} "${exepath}" "${dirs}")

+    endforeach(input)

+  endif(${recurse})

+

+  set(${prerequisites_var} ${${prerequisites_var}} PARENT_SCOPE)

+endfunction(get_prerequisites)

+

+

+# list_prerequisites target all exclude_system verbose

+#

+#  ARGV0 (target) is the full path to an executable file

+#

+#  optional ARGV1 (all) is 0 or 1: 0 for direct prerequisites only,

+#   1 for all prerequisites recursively

+#

+#  optional ARGV2 (exclude_system) is 0 or 1: 0 to include "system"

+#   prerequisites , 1 to exclude them

+#

+#  optional ARGV3 (verbose) is 0 or 1: 0 to print only full path

+#   names of prerequisites, 1 to print extra information

+#

+function(list_prerequisites target)

+  if("${ARGV1}" STREQUAL "")

+    set(all 1)

+  else("${ARGV1}" STREQUAL "")

+    set(all "${ARGV1}")

+  endif("${ARGV1}" STREQUAL "")

+

+  if("${ARGV2}" STREQUAL "")

+    set(exclude_system 0)

+  else("${ARGV2}" STREQUAL "")

+    set(exclude_system "${ARGV2}")

+  endif("${ARGV2}" STREQUAL "")

+

+  if("${ARGV3}" STREQUAL "")

+    set(verbose 0)

+  else("${ARGV3}" STREQUAL "")

+    set(verbose "${ARGV3}")

+  endif("${ARGV3}" STREQUAL "")

+

+  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(print_target)

+

+  foreach(d ${prereqs})

+    math(EXPR count "${count} + 1")

+

+    if(print_count)

+      set(count_str "${count}. ")

+    endif(print_count)

+

+    if(print_prerequisite_type)

+      gp_file_type("${target}" "${d}" type)

+      set(type_str " (${type})")

+    endif(print_prerequisite_type)

+

+    message(STATUS "${count_str}${d}${type_str}")

+  endforeach(d)

+endfunction(list_prerequisites)

+

+

+# list_prerequisites_by_glob glob_arg glob_exp

+#

+#  glob_arg is GLOB or GLOB_RECURSE

+#

+#  glob_exp is a globbing expression used with "file(GLOB" 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.

+#

+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(is_f_executable)

+  endforeach(f)

+endfunction(list_prerequisites_by_glob)