1 # - Functions to analyze and list executable file prerequisites.
2 # This module provides functions to list the .dll, .dylib or .so
3 # files that an executable or shared library file depends on. (Its
6 # It uses various tools to obtain the list of required shared library files:
10 # The following functions are provided by this module:
13 # list_prerequisites_by_glob
16 # gp_item_default_embedded_path
17 # (projects can override with gp_item_default_embedded_path_override)
19 # (projects can override with gp_resolve_item_override)
20 # gp_resolved_file_type
21 # (projects can override with gp_resolved_file_type_override)
23 # Requires CMake 2.6 or greater because it uses function, break, return and
26 # GET_PREREQUISITES(<target> <prerequisites_var> <exclude_system> <recurse>
28 # Get the list of shared library files required by <target>. The list in
29 # the variable named <prerequisites_var> should be empty on first entry to
30 # this function. On exit, <prerequisites_var> will contain the list of
31 # required shared library files.
33 # <target> is the full path to an executable file. <prerequisites_var> is the
34 # name of a CMake variable to contain the results. <exclude_system> must be 0
35 # or 1 indicating whether to include or exclude "system" prerequisites. If
36 # <recurse> is set to 1 all prerequisites will be found recursively, if set to
37 # 0 only direct prerequisites are listed. <exepath> is the path to the top
38 # level executable used for @executable_path replacment on the Mac. <dirs> is
39 # a list of paths where libraries might be found: these paths are searched
40 # first when a target without any path info is given. Then standard system
41 # locations are also searched: PATH, Framework locations, /usr/lib...
43 # LIST_PREREQUISITES(<target> [<recurse> [<exclude_system> [<verbose>]]])
44 # Print a message listing the prerequisites of <target>.
46 # <target> is the name of a shared library or executable target or the full
47 # path to a shared library or executable file. If <recurse> is set to 1 all
48 # prerequisites will be found recursively, if set to 0 only direct
49 # prerequisites are listed. <exclude_system> must be 0 or 1 indicating whether
50 # to include or exclude "system" prerequisites. With <verbose> set to 0 only
51 # the full path names of the prerequisites are printed, set to 1 extra
52 # informatin will be displayed.
54 # LIST_PREREQUISITES_BY_GLOB(<glob_arg> <glob_exp>)
55 # Print the prerequisites of shared library and executable files matching a
56 # globbing pattern. <glob_arg> is GLOB or GLOB_RECURSE and <glob_exp> is a
57 # globbing expression used with "file(GLOB" or "file(GLOB_RECURSE" to retrieve
58 # a list of matching files. If a matching file is executable, its prerequisites
61 # Any additional (optional) arguments provided are passed along as the
62 # optional arguments to the list_prerequisites calls.
64 # GP_APPEND_UNIQUE(<list_var> <value>)
65 # Append <value> to the list variable <list_var> only if the value is not
66 # already in the list.
68 # IS_FILE_EXECUTABLE(<file> <result_var>)
69 # Return 1 in <result_var> if <file> is a binary executable, 0 otherwise.
71 # GP_ITEM_DEFAULT_EMBEDDED_PATH(<item> <default_embedded_path_var>)
72 # Return the path that others should refer to the item by when the item
73 # is embedded inside a bundle.
75 # Override on a per-project basis by providing a project-specific
76 # gp_item_default_embedded_path_override function.
78 # GP_RESOLVE_ITEM(<context> <item> <exepath> <dirs> <resolved_item_var>)
79 # Resolve an item into an existing full path file.
81 # Override on a per-project basis by providing a project-specific
82 # gp_resolve_item_override function.
84 # GP_RESOLVED_FILE_TYPE(<original_file> <file> <exepath> <dirs> <type_var>)
85 # Return the type of <file> with respect to <original_file>. String
86 # describing type of prerequisite is returned in variable named <type_var>.
88 # Use <exepath> and <dirs> if necessary to resolve non-absolute <file>
89 # values -- but only for non-embedded items.
96 # Override on a per-project basis by providing a project-specific
97 # gp_resolved_file_type_override function.
99 # GP_FILE_TYPE(<original_file> <file> <type_var>)
100 # Return the type of <file> with respect to <original_file>. String
101 # describing type of prerequisite is returned in variable named <type_var>.
103 # Possible types are:
109 #=============================================================================
110 # Copyright 2008-2009 Kitware, Inc.
112 # Distributed under the OSI-approved BSD License (the "License");
113 # see accompanying file Copyright.txt for details.
115 # This software is distributed WITHOUT ANY WARRANTY; without even the
116 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
117 # See the License for more information.
118 #=============================================================================
119 # (To distribute this file outside of CMake, substitute the full
120 # License text for the above reference.)
122 function(gp_append_unique list_var value)
125 foreach(item ${${list_var}})
126 if("${item}" STREQUAL "${value}")
133 set(${list_var} ${${list_var}} "${value}" PARENT_SCOPE)
138 function(is_file_executable file result_var)
140 # A file is not executable until proven otherwise:
142 set(${result_var} 0 PARENT_SCOPE)
144 get_filename_component(file_full "${file}" ABSOLUTE)
145 string(TOLOWER "${file_full}" file_full_lower)
147 # If file name ends in .exe on Windows, *assume* executable:
149 if(WIN32 AND NOT UNIX)
150 if("${file_full_lower}" MATCHES "\\.exe$")
151 set(${result_var} 1 PARENT_SCOPE)
155 # A clause could be added here that uses output or return value of dumpbin
156 # to determine ${result_var}. In 99%+? practical cases, the exe name
157 # match will be sufficient...
161 # Use the information returned from the Unix shell command "file" to
162 # determine if ${file_full} should be considered an executable file...
164 # If the file command's output contains "executable" and does *not* contain
165 # "text" then it is likely an executable suitable for prerequisite analysis
166 # via the get_prerequisites macro.
170 find_program(file_cmd "file")
171 mark_as_advanced(file_cmd)
175 execute_process(COMMAND "${file_cmd}" "${file_full}"
176 OUTPUT_VARIABLE file_ov
177 OUTPUT_STRIP_TRAILING_WHITESPACE
180 # Replace the name of the file in the output with a placeholder token
181 # (the string " _file_full_ ") so that just in case the path name of
182 # the file contains the word "text" or "executable" we are not fooled
183 # into thinking "the wrong thing" because the file name matches the
184 # other 'file' command output we are looking for...
186 string(REPLACE "${file_full}" " _file_full_ " file_ov "${file_ov}")
187 string(TOLOWER "${file_ov}" file_ov)
189 #message(STATUS "file_ov='${file_ov}'")
190 if("${file_ov}" MATCHES "executable")
191 #message(STATUS "executable!")
192 if("${file_ov}" MATCHES "text")
193 #message(STATUS "but text, so *not* a binary executable!")
195 set(${result_var} 1 PARENT_SCOPE)
200 # Also detect position independent executables on Linux,
201 # where "file" gives "shared object ... (uses shared libraries)"
202 if("${file_ov}" MATCHES "shared object.*\(uses shared libs\)")
203 set(${result_var} 1 PARENT_SCOPE)
208 message(STATUS "warning: No 'file' command, skipping execute_process...")
214 function(gp_item_default_embedded_path item default_embedded_path_var)
216 # On Windows and Linux, "embed" prerequisites in the same directory
217 # as the executable by default:
219 set(path "@executable_path")
222 # On the Mac, relative to the executable depending on the type
223 # of the thing we are embedding:
227 # The assumption here is that all executables in the bundle will be
228 # in same-level-directories inside the bundle. The parent directory
229 # of an executable inside the bundle should be MacOS or a sibling of
230 # MacOS and all embedded paths returned from here will begin with
231 # "@executable_path/../" and will work from all executables in all
232 # such same-level-directories inside the bundle.
235 # By default, embed things right next to the main bundle executable:
237 set(path "@executable_path/../../Contents/MacOS")
239 # Embed .dylibs right next to the main bundle executable:
241 if(item MATCHES "\\.dylib$")
242 set(path "@executable_path/../MacOS")
246 # Embed frameworks in the embedded "Frameworks" directory (sibling of MacOS):
249 if(item MATCHES "[^/]+\\.framework/")
250 set(path "@executable_path/../Frameworks")
256 # Provide a hook so that projects can override the default embedded location
257 # of any given library by whatever logic they choose:
259 if(COMMAND gp_item_default_embedded_path_override)
260 gp_item_default_embedded_path_override("${item}" path)
263 set(${default_embedded_path_var} "${path}" PARENT_SCOPE)
267 function(gp_resolve_item context item exepath dirs resolved_item_var)
269 set(resolved_item "${item}")
271 # Is it already resolved?
273 if(IS_ABSOLUTE "${resolved_item}" AND EXISTS "${resolved_item}")
278 if(item MATCHES "@executable_path")
280 # @executable_path references are assumed relative to exepath
282 string(REPLACE "@executable_path" "${exepath}" ri "${item}")
283 get_filename_component(ri "${ri}" ABSOLUTE)
286 #message(STATUS "info: embedded item exists (${ri})")
288 set(resolved_item "${ri}")
290 message(STATUS "warning: embedded item does not exist '${ri}'")
296 if(item MATCHES "@loader_path")
298 # @loader_path references are assumed relative to the
299 # PATH of the given "context" (presumably another library)
301 get_filename_component(contextpath "${context}" PATH)
302 string(REPLACE "@loader_path" "${contextpath}" ri "${item}")
303 get_filename_component(ri "${ri}" ABSOLUTE)
306 #message(STATUS "info: embedded item exists (${ri})")
308 set(resolved_item "${ri}")
310 message(STATUS "warning: embedded item does not exist '${ri}'")
316 if(item MATCHES "@rpath")
318 # @rpath references are relative to the paths built into the binaries with -rpath
319 # We handle this case like we do for other Unixes
321 string(REPLACE "@rpath/" "" norpath_item "${item}")
323 set(ri "ri-NOTFOUND")
324 find_file(ri "${norpath_item}" ${exepath} ${dirs} NO_DEFAULT_PATH)
326 #message(STATUS "info: 'find_file' in exepath/dirs (${ri})")
328 set(resolved_item "${ri}")
329 set(ri "ri-NOTFOUND")
336 set(ri "ri-NOTFOUND")
337 find_file(ri "${item}" ${exepath} ${dirs} NO_DEFAULT_PATH)
338 find_file(ri "${item}" ${exepath} ${dirs} /usr/lib)
340 #message(STATUS "info: 'find_file' in exepath/dirs (${ri})")
342 set(resolved_item "${ri}")
343 set(ri "ri-NOTFOUND")
348 if(item MATCHES "[^/]+\\.framework/")
349 set(fw "fw-NOTFOUND")
350 find_file(fw "${item}"
351 "~/Library/Frameworks"
352 "/Library/Frameworks"
353 "/System/Library/Frameworks"
356 #message(STATUS "info: 'find_file' found framework (${fw})")
358 set(resolved_item "${fw}")
359 set(fw "fw-NOTFOUND")
364 # Using find_program on Windows will find dll files that are in the PATH.
365 # (Converting simple file names into full path names if found.)
367 if(WIN32 AND NOT UNIX)
369 set(ri "ri-NOTFOUND")
370 find_program(ri "${item}" PATHS "${exepath};${dirs}" NO_DEFAULT_PATH)
371 find_program(ri "${item}" PATHS "${exepath};${dirs}")
373 #message(STATUS "info: 'find_program' in exepath/dirs (${ri})")
375 set(resolved_item "${ri}")
376 set(ri "ri-NOTFOUND")
381 # Provide a hook so that projects can override item resolution
382 # by whatever logic they choose:
384 if(COMMAND gp_resolve_item_override)
385 gp_resolve_item_override("${context}" "${item}" "${exepath}" "${dirs}" resolved_item resolved)
390 warning: cannot resolve item '${item}'
393 need more directories?
394 need to use InstallRequiredSystemLibraries?
395 run in install tree instead of build tree?
398 #******************************************************************************
399 #warning: cannot resolve item '${item}'
402 # need more directories?
403 # need to use InstallRequiredSystemLibraries?
404 # run in install tree instead of build tree?
406 # context='${context}'
408 # exepath='${exepath}'
410 # resolved_item_var='${resolved_item_var}'
411 #******************************************************************************
415 set(${resolved_item_var} "${resolved_item}" PARENT_SCOPE)
419 function(gp_resolved_file_type original_file file exepath dirs type_var)
420 #message(STATUS "**")
422 if(NOT IS_ABSOLUTE "${original_file}")
423 message(STATUS "warning: gp_resolved_file_type expects absolute full path for first arg original_file")
430 set(resolved_file "${file}")
432 if("${file}" MATCHES "^@(executable|loader)_path")
437 if(NOT IS_ABSOLUTE "${file}")
438 gp_resolve_item("${original_file}" "${file}" "${exepath}" "${dirs}" resolved_file)
441 string(TOLOWER "${original_file}" original_lower)
442 string(TOLOWER "${resolved_file}" lower)
445 if(resolved_file MATCHES "^(/lib/|/lib32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/lib64/|/usr/X11R6/|/usr/bin/)")
451 if(resolved_file MATCHES "^(/System/Library/|/usr/lib/)")
457 string(TOLOWER "$ENV{SystemRoot}" sysroot)
458 string(REGEX REPLACE "\\\\" "/" sysroot "${sysroot}")
460 string(TOLOWER "$ENV{windir}" windir)
461 string(REGEX REPLACE "\\\\" "/" windir "${windir}")
463 if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*msvc[^/]+dll)")
468 # if cygwin, we can get the properly formed windows paths from cygpath
469 find_program(CYGPATH_EXECUTABLE cygpath)
471 if(CYGPATH_EXECUTABLE)
472 execute_process(COMMAND ${CYGPATH_EXECUTABLE} -W
473 OUTPUT_VARIABLE env_windir
474 OUTPUT_STRIP_TRAILING_WHITESPACE)
475 execute_process(COMMAND ${CYGPATH_EXECUTABLE} -S
476 OUTPUT_VARIABLE env_sysdir
477 OUTPUT_STRIP_TRAILING_WHITESPACE)
478 string(TOLOWER "${env_windir}" windir)
479 string(TOLOWER "${env_sysdir}" sysroot)
481 if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*msvc[^/]+dll)")
489 get_filename_component(original_path "${original_lower}" PATH)
490 get_filename_component(path "${lower}" PATH)
491 if("${original_path}" STREQUAL "${path}")
494 string(LENGTH "${original_path}/" original_length)
495 string(LENGTH "${lower}" path_length)
496 if(${path_length} GREATER ${original_length})
497 string(SUBSTRING "${lower}" 0 ${original_length} path)
498 if("${original_path}/" STREQUAL "${path}")
506 # Return type string based on computed booleans:
518 #message(STATUS "gp_resolved_file_type: '${file}' '${resolved_file}'")
519 #message(STATUS " type: '${type}'")
522 if(NOT IS_ABSOLUTE "${resolved_file}")
523 if(lower MATCHES "^msvc[^/]+dll" AND is_system)
524 message(STATUS "info: non-absolute msvc file '${file}' returning type '${type}'")
526 message(STATUS "warning: gp_resolved_file_type non-absolute file '${file}' returning type '${type}' -- possibly incorrect")
531 # Provide a hook so that projects can override the decision on whether a
532 # library belongs to the system or not by whatever logic they choose:
534 if(COMMAND gp_resolved_file_type_override)
535 gp_resolved_file_type_override("${resolved_file}" type)
538 set(${type_var} "${type}" PARENT_SCOPE)
540 #message(STATUS "**")
544 function(gp_file_type original_file file type_var)
545 if(NOT IS_ABSOLUTE "${original_file}")
546 message(STATUS "warning: gp_file_type expects absolute full path for first arg original_file")
549 get_filename_component(exepath "${original_file}" PATH)
552 gp_resolved_file_type("${original_file}" "${file}" "${exepath}" "" type)
554 set(${type_var} "${type}" PARENT_SCOPE)
558 function(get_prerequisites target prerequisites_var exclude_system recurse exepath dirs)
562 if(NOT IS_ABSOLUTE "${target}")
563 message("warning: target '${target}' is not absolute...")
566 if(NOT EXISTS "${target}")
567 message("warning: target '${target}' does not exist...")
570 # <setup-gp_tool-vars>
572 # Try to choose the right tool by default. Caller can set gp_tool prior to
573 # calling this function to force using a different tool.
575 if("${gp_tool}" STREQUAL "")
580 if(WIN32 AND NOT UNIX) # This is how to check for cygwin, har!
581 set(gp_tool "dumpbin")
587 if("${gp_tool}" STREQUAL "ldd")
589 set(gp_regex "^[\t ]*[^\t ]+ => ([^\t\(]+) .*${eol_char}$")
590 set(gp_regex_error "not found${eol_char}$")
591 set(gp_regex_fallback "^[\t ]*([^\t ]+) => ([^\t ]+).*${eol_char}$")
592 set(gp_regex_cmp_count 1)
596 if("${gp_tool}" STREQUAL "otool")
597 set(gp_cmd_args "-L")
598 set(gp_regex "^\t([^\t]+) \\(compatibility version ([0-9]+.[0-9]+.[0-9]+), current version ([0-9]+.[0-9]+.[0-9]+)\\)${eol_char}$")
599 set(gp_regex_error "")
600 set(gp_regex_fallback "")
601 set(gp_regex_cmp_count 3)
605 if("${gp_tool}" STREQUAL "dumpbin")
606 set(gp_cmd_args "/dependents")
607 set(gp_regex "^ ([^ ].*[Dd][Ll][Ll])${eol_char}$")
608 set(gp_regex_error "")
609 set(gp_regex_fallback "")
610 set(gp_regex_cmp_count 1)
612 set(ENV{VS_UNICODE_OUTPUT} "") # Block extra output from inside VS IDE.
615 if(NOT gp_tool_known)
616 message(STATUS "warning: gp_tool='${gp_tool}' is an unknown tool...")
617 message(STATUS "CMake function get_prerequisites needs more code to handle '${gp_tool}'")
618 message(STATUS "Valid gp_tool values are dumpbin, ldd and otool.")
622 set(gp_cmd_paths ${gp_cmd_paths}
623 "C:/Program Files/Microsoft Visual Studio 9.0/VC/bin"
624 "C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin"
625 "C:/Program Files/Microsoft Visual Studio 8/VC/BIN"
626 "C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN"
627 "C:/Program Files/Microsoft Visual Studio .NET 2003/VC7/BIN"
628 "C:/Program Files (x86)/Microsoft Visual Studio .NET 2003/VC7/BIN"
633 find_program(gp_cmd ${gp_tool} PATHS ${gp_cmd_paths})
636 message(STATUS "warning: could not find '${gp_tool}' - cannot analyze prerequisites...")
640 if("${gp_tool}" STREQUAL "dumpbin")
641 # When running dumpbin, it also needs the "Common7/IDE" directory in the
642 # PATH. It will already be in the PATH if being run from a Visual Studio
643 # command prompt. Add it to the PATH here in case we are running from a
644 # different command prompt.
646 get_filename_component(gp_cmd_dir "${gp_cmd}" PATH)
647 get_filename_component(gp_cmd_dlls_dir "${gp_cmd_dir}/../../Common7/IDE" ABSOLUTE)
648 # Use cmake paths as a user may have a PATH element ending with a backslash.
649 # This will escape the list delimiter and create havoc!
650 if(EXISTS "${gp_cmd_dlls_dir}")
651 # only add to the path if it is not already in the path
652 set(gp_found_cmd_dlls_dir 0)
653 file(TO_CMAKE_PATH "$ENV{PATH}" env_path)
654 foreach(gp_env_path_element ${env_path})
655 if("${gp_env_path_element}" STREQUAL "${gp_cmd_dlls_dir}")
656 set(gp_found_cmd_dlls_dir 1)
660 if(NOT gp_found_cmd_dlls_dir)
661 file(TO_NATIVE_PATH "${gp_cmd_dlls_dir}" gp_cmd_dlls_dir)
662 set(ENV{PATH} "$ENV{PATH};${gp_cmd_dlls_dir}")
667 # </setup-gp_tool-vars>
669 if("${gp_tool}" STREQUAL "ldd")
670 set(old_ld_env "$ENV{LD_LIBRARY_PATH}")
671 foreach(dir ${exepath} ${dirs})
672 set(ENV{LD_LIBRARY_PATH} "${dir}:$ENV{LD_LIBRARY_PATH}")
677 # Track new prerequisites at each new level of recursion. Start with an
678 # empty list at each level:
682 # Run gp_cmd on the target:
685 COMMAND ${gp_cmd} ${gp_cmd_args} ${target}
686 OUTPUT_VARIABLE gp_cmd_ov
689 if("${gp_tool}" STREQUAL "ldd")
690 set(ENV{LD_LIBRARY_PATH} "${old_ld_env}")
694 message(STATUS "<RawOutput cmd='${gp_cmd} ${gp_cmd_args} ${target}'>")
695 message(STATUS "gp_cmd_ov='${gp_cmd_ov}'")
696 message(STATUS "</RawOutput>")
699 get_filename_component(target_dir "${target}" PATH)
701 # Convert to a list of lines:
703 string(REGEX REPLACE ";" "\\\\;" candidates "${gp_cmd_ov}")
704 string(REGEX REPLACE "\n" "${eol_char};" candidates "${candidates}")
706 # check for install id and remove it from list, since otool -L can include a
707 # reference to itself
709 if("${gp_tool}" STREQUAL "otool")
711 COMMAND otool -D ${target}
712 OUTPUT_VARIABLE gp_install_id_ov
714 # second line is install name
715 string(REGEX REPLACE ".*:\n" "" gp_install_id "${gp_install_id_ov}")
718 string(REGEX MATCH "[^\n ].*[^\n ]" gp_install_id "${gp_install_id}")
719 #message("INSTALL ID is \"${gp_install_id}\"")
723 # Analyze each line for file names that match the regular expression:
725 foreach(candidate ${candidates})
726 if("${candidate}" MATCHES "${gp_regex}")
728 # Extract information from each candidate:
729 if(gp_regex_error AND "${candidate}" MATCHES "${gp_regex_error}")
730 string(REGEX REPLACE "${gp_regex_fallback}" "\\1" raw_item "${candidate}")
732 string(REGEX REPLACE "${gp_regex}" "\\1" raw_item "${candidate}")
735 if(gp_regex_cmp_count GREATER 1)
736 string(REGEX REPLACE "${gp_regex}" "\\2" raw_compat_version "${candidate}")
737 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" compat_major_version "${raw_compat_version}")
738 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" compat_minor_version "${raw_compat_version}")
739 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" compat_patch_version "${raw_compat_version}")
742 if(gp_regex_cmp_count GREATER 2)
743 string(REGEX REPLACE "${gp_regex}" "\\3" raw_current_version "${candidate}")
744 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" current_major_version "${raw_current_version}")
745 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" current_minor_version "${raw_current_version}")
746 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" current_patch_version "${raw_current_version}")
749 # Use the raw_item as the list entries returned by this function. Use the
750 # gp_resolve_item function to resolve it to an actual full path file if
753 set(item "${raw_item}")
755 # Add each item unless it is excluded:
759 if("${item}" STREQUAL "${gp_install_id}")
763 if(add_item AND ${exclude_system})
765 gp_resolved_file_type("${target}" "${item}" "${exepath}" "${dirs}" type)
767 if("${type}" STREQUAL "system")
773 list(LENGTH ${prerequisites_var} list_length_before_append)
774 gp_append_unique(${prerequisites_var} "${item}")
775 list(LENGTH ${prerequisites_var} list_length_after_append)
778 # If item was really added, this is the first time we have seen it.
779 # Add it to unseen_prereqs so that we can recursively add *its*
782 # But first: resolve its name to an absolute full path name such
783 # that the analysis tools can simply accept it as input.
785 if(NOT list_length_before_append EQUAL list_length_after_append)
786 gp_resolve_item("${target}" "${item}" "${exepath}" "${dirs}" resolved_item)
787 set(unseen_prereqs ${unseen_prereqs} "${resolved_item}")
793 message(STATUS "ignoring non-matching line: '${candidate}'")
798 list(LENGTH ${prerequisites_var} prerequisites_var_length)
799 if(prerequisites_var_length GREATER 0)
800 list(SORT ${prerequisites_var})
803 set(more_inputs ${unseen_prereqs})
804 foreach(input ${more_inputs})
805 get_prerequisites("${input}" ${prerequisites_var} ${exclude_system} ${recurse} "${exepath}" "${dirs}")
809 set(${prerequisites_var} ${${prerequisites_var}} PARENT_SCOPE)
813 function(list_prerequisites target)
814 if("${ARGV1}" STREQUAL "")
820 if("${ARGV2}" STREQUAL "")
821 set(exclude_system 0)
823 set(exclude_system "${ARGV2}")
826 if("${ARGV3}" STREQUAL "")
829 set(verbose "${ARGV3}")
834 set(print_count "${verbose}")
835 set(print_prerequisite_type "${verbose}")
836 set(print_target "${verbose}")
839 get_filename_component(exepath "${target}" PATH)
842 get_prerequisites("${target}" prereqs ${exclude_system} ${all} "${exepath}" "")
845 message(STATUS "File '${target}' depends on:")
848 foreach(d ${prereqs})
849 math(EXPR count "${count} + 1")
852 set(count_str "${count}. ")
855 if(print_prerequisite_type)
856 gp_file_type("${target}" "${d}" type)
857 set(type_str " (${type})")
860 message(STATUS "${count_str}${d}${type_str}")
865 function(list_prerequisites_by_glob glob_arg glob_exp)
866 message(STATUS "=============================================================================")
867 message(STATUS "List prerequisites of executables matching ${glob_arg} '${glob_exp}'")
869 file(${glob_arg} file_list ${glob_exp})
870 foreach(f ${file_list})
871 is_file_executable("${f}" is_f_executable)
873 message(STATUS "=============================================================================")
874 list_prerequisites("${f}" ${ARGN})