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}"

RESULT_VARIABLE file_rv

OUTPUT_VARIABLE file_ov

ERROR_VARIABLE file_ev

OUTPUT_STRIP_TRAILING_WHITESPACE

)

if(NOT file_rv STREQUAL "0")

message(FATAL_ERROR "${file_cmd} failed: ${file_rv}\n${file_ev}")

endif()

# 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()

# "file" version 5.22 does not print "(used shared libraries)"

# but uses "interpreter"

if("${file_ov}" MATCHES "shared object.*interpreter")

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}")

if(ARGC GREATER 5)

set(rpaths "${ARGV5}")

else()

set(rpaths "")

endif()

# 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 "

")

endif()

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

endfunction()

function(gp_resolved_file_type original_file file exepath dirs type_var)

if(ARGC GREATER 5)

set(rpaths "${ARGV5}")

else()

set(rpaths "")

endif()

#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()

if(IS_ABSOLUTE "${original_file}")

get_filename_component(original_file "${original_file}" ABSOLUTE) # canonicalize path

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()

if(IS_ABSOLUTE "${resolved_file}")

get_filename_component(resolved_file "${resolved_file}" ABSOLUTE) # canonicalize path

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|api-ms-win-)[^/]+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

RESULT_VARIABLE env_rv

OUTPUT_VARIABLE env_windir

ERROR_VARIABLE env_ev

OUTPUT_STRIP_TRAILING_WHITESPACE)

if(NOT env_rv STREQUAL "0")

message(FATAL_ERROR "${CYGPATH_EXECUTABLE} -W failed: ${env_rv}\n${env_ev}")

endif()

execute_process(COMMAND ${CYGPATH_EXECUTABLE} -S

RESULT_VARIABLE env_rv

OUTPUT_VARIABLE env_sysdir

ERROR_VARIABLE env_ev

OUTPUT_STRIP_TRAILING_WHITESPACE)

if(NOT env_rv STREQUAL "0")

message(FATAL_ERROR "${CYGPATH_EXECUTABLE} -S failed: ${env_rv}\n${env_ev}")

endif()

string(TOLOWER "${env_windir}" windir)

string(TOLOWER "${env_sysdir}" sysroot)

if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*(msvc|api-ms-win-)[^/]+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")

if(ARGC GREATER 6)

set(rpaths "${ARGV6}")

else()

set(rpaths "")

endif()

if(NOT IS_ABSOLUTE "${target}")

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

endif()

if(NOT EXISTS "${target}")

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

set(${prerequisites_var} "" PARENT_SCOPE)

return()

endif()

set(gp_cmd_paths ${gp_cmd_paths}

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\14.0;InstallDir]/../../VC/bin"

"$ENV{VS140COMNTOOLS}/../../VC/bin"

"C:/Program Files (x86)/Microsoft Visual Studio 14.0/VC/bin"

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\12.0;InstallDir]/../../VC/bin"

"$ENV{VS120COMNTOOLS}/../../VC/bin"

"C:/Program Files (x86)/Microsoft Visual Studio 12.0/VC/bin"

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;InstallDir]/../../VC/bin"

"$ENV{VS110COMNTOOLS}/../../VC/bin"

"C:/Program Files (x86)/Microsoft Visual Studio 11.0/VC/bin"

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\10.0;InstallDir]/../../VC/bin"

"$ENV{VS100COMNTOOLS}/../../VC/bin"

"C:/Program Files (x86)/Microsoft Visual Studio 10.0/VC/bin"

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\9.0;InstallDir]/../../VC/bin"

"$ENV{VS90COMNTOOLS}/../../VC/bin"

"C:/Program Files/Microsoft Visual Studio 9.0/VC/bin"

"C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin"

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\8.0;InstallDir]/../../VC/bin"

"$ENV{VS80COMNTOOLS}/../../VC/bin"

"C:/Program Files/Microsoft Visual Studio 8/VC/BIN"

"C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN"

"[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\7.1;InstallDir]/../../VC7/bin"

"$ENV{VS71COMNTOOLS}/../../VC7/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()

set(gp_cmd_maybe_filter) # optional command to pre-filter gp_tool results

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)

# objdump generates copious output so we create a grep filter to pre-filter results

if(WIN32)

find_program(gp_grep_cmd findstr)

else()

find_program(gp_grep_cmd grep)

endif()

if(gp_grep_cmd)

set(gp_cmd_maybe_filter COMMAND ${gp_grep_cmd} "-a" "^[[:blank:]]*DLL Name: ")

endif()

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})

string(APPEND 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}

${gp_cmd_maybe_filter}

RESULT_VARIABLE gp_rv

OUTPUT_VARIABLE gp_cmd_ov

ERROR_VARIABLE gp_ev

)

if(gp_tool STREQUAL "dumpbin")

# Exclude delay load dependencies under windows (they are listed in dumpbin output after the message below)

string(FIND "${gp_cmd_ov}" "Image has the following delay load dependencies" gp_delayload_pos)

if (${gp_delayload_pos} GREATER -1)

string(SUBSTRING "${gp_cmd_ov}" 0 ${gp_delayload_pos} gp_cmd_ov_no_delayload_deps)

string(SUBSTRING "${gp_cmd_ov}" ${gp_delayload_pos} -1 gp_cmd_ov_delayload_deps)

if (verbose)

message(STATUS "GetPrequisites(${target}) : ignoring the following delay load dependencies :\n ${gp_cmd_ov_delayload_deps}")

endif()

set(gp_cmd_ov ${gp_cmd_ov_no_delayload_deps})

endif()

endif()

if(NOT gp_rv STREQUAL "0")

if(gp_tool STREQUAL "dumpbin")

# dumpbin error messages seem to go to stdout

message(FATAL_ERROR "${gp_cmd} failed: ${gp_rv}\n${gp_ev}\n${gp_cmd_ov}")

else()

message(FATAL_ERROR "${gp_cmd} failed: ${gp_rv}\n${gp_ev}")

endif()

endif()

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}

RESULT_VARIABLE otool_rv

OUTPUT_VARIABLE gp_install_id_ov

ERROR_VARIABLE otool_ev

)

if(NOT otool_rv STREQUAL "0")

message(FATAL_ERROR "otool -D failed: ${otool_rv}\n${otool_ev}")

endif()

# 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}")

if(EXISTS ${resolved_item})

# Recurse only if we could resolve the item.

# Otherwise the prerequisites_var list will be cleared

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

endif()

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(ARGC GREATER 1 AND NOT "${ARGV1}" STREQUAL "")

set(all "${ARGV1}")

else()

set(all 1)

endif()

if(ARGC GREATER 2 AND NOT "${ARGV2}" STREQUAL "")

set(exclude_system "${ARGV2}")

else()

set(exclude_system 0)

endif()

if(ARGC GREATER 3 AND NOT "${ARGV3}" STREQUAL "")

set(verbose "${ARGV3}")

else()

set(verbose 0)

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}" "")