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:
8 # objdump (MinGW on Windows)
11 # The following functions are provided by this module:
14 # list_prerequisites_by_glob
17 # gp_item_default_embedded_path
18 # (projects can override with gp_item_default_embedded_path_override)
20 # (projects can override with gp_resolve_item_override)
21 # gp_resolved_file_type
22 # (projects can override with gp_resolved_file_type_override)
24 # Requires CMake 2.6 or greater because it uses function, break, return and
27 # GET_PREREQUISITES(<target> <prerequisites_var> <exclude_system> <recurse>
29 # Get the list of shared library files required by <target>. The list in
30 # the variable named <prerequisites_var> should be empty on first entry to
31 # this function. On exit, <prerequisites_var> will contain the list of
32 # required shared library files.
34 # <target> is the full path to an executable file. <prerequisites_var> is the
35 # name of a CMake variable to contain the results. <exclude_system> must be 0
36 # or 1 indicating whether to include or exclude "system" prerequisites. If
37 # <recurse> is set to 1 all prerequisites will be found recursively, if set to
38 # 0 only direct prerequisites are listed. <exepath> is the path to the top
39 # level executable used for @executable_path replacment on the Mac. <dirs> is
40 # a list of paths where libraries might be found: these paths are searched
41 # first when a target without any path info is given. Then standard system
42 # locations are also searched: PATH, Framework locations, /usr/lib...
44 # LIST_PREREQUISITES(<target> [<recurse> [<exclude_system> [<verbose>]]])
45 # Print a message listing the prerequisites of <target>.
47 # <target> is the name of a shared library or executable target or the full
48 # path to a shared library or executable file. If <recurse> is set to 1 all
49 # prerequisites will be found recursively, if set to 0 only direct
50 # prerequisites are listed. <exclude_system> must be 0 or 1 indicating whether
51 # to include or exclude "system" prerequisites. With <verbose> set to 0 only
52 # the full path names of the prerequisites are printed, set to 1 extra
53 # informatin will be displayed.
55 # LIST_PREREQUISITES_BY_GLOB(<glob_arg> <glob_exp>)
56 # Print the prerequisites of shared library and executable files matching a
57 # globbing pattern. <glob_arg> is GLOB or GLOB_RECURSE and <glob_exp> is a
58 # globbing expression used with "file(GLOB" or "file(GLOB_RECURSE" to retrieve
59 # a list of matching files. If a matching file is executable, its prerequisites
62 # Any additional (optional) arguments provided are passed along as the
63 # optional arguments to the list_prerequisites calls.
65 # GP_APPEND_UNIQUE(<list_var> <value>)
66 # Append <value> to the list variable <list_var> only if the value is not
67 # already in the list.
69 # IS_FILE_EXECUTABLE(<file> <result_var>)
70 # Return 1 in <result_var> if <file> is a binary executable, 0 otherwise.
72 # GP_ITEM_DEFAULT_EMBEDDED_PATH(<item> <default_embedded_path_var>)
73 # Return the path that others should refer to the item by when the item
74 # is embedded inside a bundle.
76 # Override on a per-project basis by providing a project-specific
77 # gp_item_default_embedded_path_override function.
79 # GP_RESOLVE_ITEM(<context> <item> <exepath> <dirs> <resolved_item_var>)
80 # Resolve an item into an existing full path file.
82 # Override on a per-project basis by providing a project-specific
83 # gp_resolve_item_override function.
85 # GP_RESOLVED_FILE_TYPE(<original_file> <file> <exepath> <dirs> <type_var>)
86 # Return the type of <file> with respect to <original_file>. String
87 # describing type of prerequisite is returned in variable named <type_var>.
89 # Use <exepath> and <dirs> if necessary to resolve non-absolute <file>
90 # values -- but only for non-embedded items.
97 # Override on a per-project basis by providing a project-specific
98 # gp_resolved_file_type_override function.
100 # GP_FILE_TYPE(<original_file> <file> <type_var>)
101 # Return the type of <file> with respect to <original_file>. String
102 # describing type of prerequisite is returned in variable named <type_var>.
104 # Possible types are:
110 #=============================================================================
111 # Copyright 2008-2009 Kitware, Inc.
113 # Distributed under the OSI-approved BSD License (the "License");
114 # see accompanying file Copyright.txt for details.
116 # This software is distributed WITHOUT ANY WARRANTY; without even the
117 # implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
118 # See the License for more information.
119 #=============================================================================
120 # (To distribute this file outside of CMake, substitute the full
121 # License text for the above reference.)
123 function(gp_append_unique list_var value)
126 foreach(item ${${list_var}})
127 if("${item}" STREQUAL "${value}")
134 set(${list_var} ${${list_var}} "${value}" PARENT_SCOPE)
139 function(is_file_executable file result_var)
141 # A file is not executable until proven otherwise:
143 set(${result_var} 0 PARENT_SCOPE)
145 get_filename_component(file_full "${file}" ABSOLUTE)
146 string(TOLOWER "${file_full}" file_full_lower)
148 # If file name ends in .exe on Windows, *assume* executable:
150 if(WIN32 AND NOT UNIX)
151 if("${file_full_lower}" MATCHES "\\.exe$")
152 set(${result_var} 1 PARENT_SCOPE)
156 # A clause could be added here that uses output or return value of dumpbin
157 # to determine ${result_var}. In 99%+? practical cases, the exe name
158 # match will be sufficient...
162 # Use the information returned from the Unix shell command "file" to
163 # determine if ${file_full} should be considered an executable file...
165 # If the file command's output contains "executable" and does *not* contain
166 # "text" then it is likely an executable suitable for prerequisite analysis
167 # via the get_prerequisites macro.
171 find_program(file_cmd "file")
172 mark_as_advanced(file_cmd)
176 execute_process(COMMAND "${file_cmd}" "${file_full}"
177 OUTPUT_VARIABLE file_ov
178 OUTPUT_STRIP_TRAILING_WHITESPACE
181 # Replace the name of the file in the output with a placeholder token
182 # (the string " _file_full_ ") so that just in case the path name of
183 # the file contains the word "text" or "executable" we are not fooled
184 # into thinking "the wrong thing" because the file name matches the
185 # other 'file' command output we are looking for...
187 string(REPLACE "${file_full}" " _file_full_ " file_ov "${file_ov}")
188 string(TOLOWER "${file_ov}" file_ov)
190 #message(STATUS "file_ov='${file_ov}'")
191 if("${file_ov}" MATCHES "executable")
192 #message(STATUS "executable!")
193 if("${file_ov}" MATCHES "text")
194 #message(STATUS "but text, so *not* a binary executable!")
196 set(${result_var} 1 PARENT_SCOPE)
201 # Also detect position independent executables on Linux,
202 # where "file" gives "shared object ... (uses shared libraries)"
203 if("${file_ov}" MATCHES "shared object.*\(uses shared libs\)")
204 set(${result_var} 1 PARENT_SCOPE)
209 message(STATUS "warning: No 'file' command, skipping execute_process...")
215 function(gp_item_default_embedded_path item default_embedded_path_var)
217 # On Windows and Linux, "embed" prerequisites in the same directory
218 # as the executable by default:
220 set(path "@executable_path")
223 # On the Mac, relative to the executable depending on the type
224 # of the thing we are embedding:
228 # The assumption here is that all executables in the bundle will be
229 # in same-level-directories inside the bundle. The parent directory
230 # of an executable inside the bundle should be MacOS or a sibling of
231 # MacOS and all embedded paths returned from here will begin with
232 # "@executable_path/../" and will work from all executables in all
233 # such same-level-directories inside the bundle.
236 # By default, embed things right next to the main bundle executable:
238 set(path "@executable_path/../../Contents/MacOS")
240 # Embed .dylibs right next to the main bundle executable:
242 if(item MATCHES "\\.dylib$")
243 set(path "@executable_path/../MacOS")
247 # Embed frameworks in the embedded "Frameworks" directory (sibling of MacOS):
250 if(item MATCHES "[^/]+\\.framework/")
251 set(path "@executable_path/../Frameworks")
257 # Provide a hook so that projects can override the default embedded location
258 # of any given library by whatever logic they choose:
260 if(COMMAND gp_item_default_embedded_path_override)
261 gp_item_default_embedded_path_override("${item}" path)
264 set(${default_embedded_path_var} "${path}" PARENT_SCOPE)
268 function(gp_resolve_item context item exepath dirs resolved_item_var)
270 set(resolved_item "${item}")
272 # Is it already resolved?
274 if(IS_ABSOLUTE "${resolved_item}" AND EXISTS "${resolved_item}")
279 if(item MATCHES "@executable_path")
281 # @executable_path references are assumed relative to exepath
283 string(REPLACE "@executable_path" "${exepath}" ri "${item}")
284 get_filename_component(ri "${ri}" ABSOLUTE)
287 #message(STATUS "info: embedded item exists (${ri})")
289 set(resolved_item "${ri}")
291 message(STATUS "warning: embedded item does not exist '${ri}'")
297 if(item MATCHES "@loader_path")
299 # @loader_path references are assumed relative to the
300 # PATH of the given "context" (presumably another library)
302 get_filename_component(contextpath "${context}" PATH)
303 string(REPLACE "@loader_path" "${contextpath}" ri "${item}")
304 get_filename_component(ri "${ri}" ABSOLUTE)
307 #message(STATUS "info: embedded item exists (${ri})")
309 set(resolved_item "${ri}")
311 message(STATUS "warning: embedded item does not exist '${ri}'")
317 if(item MATCHES "@rpath")
319 # @rpath references are relative to the paths built into the binaries with -rpath
320 # We handle this case like we do for other Unixes
322 string(REPLACE "@rpath/" "" norpath_item "${item}")
324 set(ri "ri-NOTFOUND")
325 find_file(ri "${norpath_item}" ${exepath} ${dirs} NO_DEFAULT_PATH)
327 #message(STATUS "info: 'find_file' in exepath/dirs (${ri})")
329 set(resolved_item "${ri}")
330 set(ri "ri-NOTFOUND")
337 set(ri "ri-NOTFOUND")
338 find_file(ri "${item}" ${exepath} ${dirs} NO_DEFAULT_PATH)
339 find_file(ri "${item}" ${exepath} ${dirs} /usr/lib)
341 #message(STATUS "info: 'find_file' in exepath/dirs (${ri})")
343 set(resolved_item "${ri}")
344 set(ri "ri-NOTFOUND")
349 if(item MATCHES "[^/]+\\.framework/")
350 set(fw "fw-NOTFOUND")
351 find_file(fw "${item}"
352 "~/Library/Frameworks"
353 "/Library/Frameworks"
354 "/System/Library/Frameworks"
357 #message(STATUS "info: 'find_file' found framework (${fw})")
359 set(resolved_item "${fw}")
360 set(fw "fw-NOTFOUND")
365 # Using find_program on Windows will find dll files that are in the PATH.
366 # (Converting simple file names into full path names if found.)
368 if(WIN32 AND NOT UNIX)
370 set(ri "ri-NOTFOUND")
371 find_program(ri "${item}" PATHS "${exepath};${dirs}" NO_DEFAULT_PATH)
372 find_program(ri "${item}" PATHS "${exepath};${dirs}")
374 #message(STATUS "info: 'find_program' in exepath/dirs (${ri})")
376 set(resolved_item "${ri}")
377 set(ri "ri-NOTFOUND")
382 # Provide a hook so that projects can override item resolution
383 # by whatever logic they choose:
385 if(COMMAND gp_resolve_item_override)
386 gp_resolve_item_override("${context}" "${item}" "${exepath}" "${dirs}" resolved_item resolved)
391 warning: cannot resolve item '${item}'
394 need more directories?
395 need to use InstallRequiredSystemLibraries?
396 run in install tree instead of build tree?
399 #******************************************************************************
400 #warning: cannot resolve item '${item}'
403 # need more directories?
404 # need to use InstallRequiredSystemLibraries?
405 # run in install tree instead of build tree?
407 # context='${context}'
409 # exepath='${exepath}'
411 # resolved_item_var='${resolved_item_var}'
412 #******************************************************************************
416 set(${resolved_item_var} "${resolved_item}" PARENT_SCOPE)
420 function(gp_resolved_file_type original_file file exepath dirs type_var)
421 #message(STATUS "**")
423 if(NOT IS_ABSOLUTE "${original_file}")
424 message(STATUS "warning: gp_resolved_file_type expects absolute full path for first arg original_file")
431 set(resolved_file "${file}")
433 if("${file}" MATCHES "^@(executable|loader)_path")
438 if(NOT IS_ABSOLUTE "${file}")
439 gp_resolve_item("${original_file}" "${file}" "${exepath}" "${dirs}" resolved_file)
442 string(TOLOWER "${original_file}" original_lower)
443 string(TOLOWER "${resolved_file}" lower)
446 if(resolved_file MATCHES "^(/lib/|/lib32/|/lib64/|/usr/lib/|/usr/lib32/|/usr/lib64/|/usr/X11R6/|/usr/bin/)")
452 if(resolved_file MATCHES "^(/System/Library/|/usr/lib/)")
458 string(TOLOWER "$ENV{SystemRoot}" sysroot)
459 string(REGEX REPLACE "\\\\" "/" sysroot "${sysroot}")
461 string(TOLOWER "$ENV{windir}" windir)
462 string(REGEX REPLACE "\\\\" "/" windir "${windir}")
464 if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*msvc[^/]+dll)")
469 # if cygwin, we can get the properly formed windows paths from cygpath
470 find_program(CYGPATH_EXECUTABLE cygpath)
472 if(CYGPATH_EXECUTABLE)
473 execute_process(COMMAND ${CYGPATH_EXECUTABLE} -W
474 OUTPUT_VARIABLE env_windir
475 OUTPUT_STRIP_TRAILING_WHITESPACE)
476 execute_process(COMMAND ${CYGPATH_EXECUTABLE} -S
477 OUTPUT_VARIABLE env_sysdir
478 OUTPUT_STRIP_TRAILING_WHITESPACE)
479 string(TOLOWER "${env_windir}" windir)
480 string(TOLOWER "${env_sysdir}" sysroot)
482 if(lower MATCHES "^(${sysroot}/sys(tem|wow)|${windir}/sys(tem|wow)|(.*/)*msvc[^/]+dll)")
490 get_filename_component(original_path "${original_lower}" PATH)
491 get_filename_component(path "${lower}" PATH)
492 if("${original_path}" STREQUAL "${path}")
495 string(LENGTH "${original_path}/" original_length)
496 string(LENGTH "${lower}" path_length)
497 if(${path_length} GREATER ${original_length})
498 string(SUBSTRING "${lower}" 0 ${original_length} path)
499 if("${original_path}/" STREQUAL "${path}")
507 # Return type string based on computed booleans:
519 #message(STATUS "gp_resolved_file_type: '${file}' '${resolved_file}'")
520 #message(STATUS " type: '${type}'")
523 if(NOT IS_ABSOLUTE "${resolved_file}")
524 if(lower MATCHES "^msvc[^/]+dll" AND is_system)
525 message(STATUS "info: non-absolute msvc file '${file}' returning type '${type}'")
527 message(STATUS "warning: gp_resolved_file_type non-absolute file '${file}' returning type '${type}' -- possibly incorrect")
532 # Provide a hook so that projects can override the decision on whether a
533 # library belongs to the system or not by whatever logic they choose:
535 if(COMMAND gp_resolved_file_type_override)
536 gp_resolved_file_type_override("${resolved_file}" type)
539 set(${type_var} "${type}" PARENT_SCOPE)
541 #message(STATUS "**")
545 function(gp_file_type original_file file type_var)
546 if(NOT IS_ABSOLUTE "${original_file}")
547 message(STATUS "warning: gp_file_type expects absolute full path for first arg original_file")
550 get_filename_component(exepath "${original_file}" PATH)
553 gp_resolved_file_type("${original_file}" "${file}" "${exepath}" "" type)
555 set(${type_var} "${type}" PARENT_SCOPE)
559 function(get_prerequisites target prerequisites_var exclude_system recurse exepath dirs)
563 if(NOT IS_ABSOLUTE "${target}")
564 message("warning: target '${target}' is not absolute...")
567 if(NOT EXISTS "${target}")
568 message("warning: target '${target}' does not exist...")
571 set(gp_cmd_paths ${gp_cmd_paths}
572 "C:/Program Files/Microsoft Visual Studio 9.0/VC/bin"
573 "C:/Program Files (x86)/Microsoft Visual Studio 9.0/VC/bin"
574 "C:/Program Files/Microsoft Visual Studio 8/VC/BIN"
575 "C:/Program Files (x86)/Microsoft Visual Studio 8/VC/BIN"
576 "C:/Program Files/Microsoft Visual Studio .NET 2003/VC7/BIN"
577 "C:/Program Files (x86)/Microsoft Visual Studio .NET 2003/VC7/BIN"
582 # <setup-gp_tool-vars>
584 # Try to choose the right tool by default. Caller can set gp_tool prior to
585 # calling this function to force using a different tool.
587 if("${gp_tool}" STREQUAL "")
594 if(WIN32 AND NOT UNIX) # This is how to check for cygwin, har!
595 find_program(gp_dumpbin "dumpbin" PATHS ${gp_cmd_paths})
597 set(gp_tool "dumpbin")
598 else() # Try harder. Maybe we're on MinGW
599 set(gp_tool "objdump")
604 find_program(gp_cmd ${gp_tool} PATHS ${gp_cmd_paths})
607 message(STATUS "warning: could not find '${gp_tool}' - cannot analyze prerequisites...")
613 if("${gp_tool}" STREQUAL "ldd")
615 set(gp_regex "^[\t ]*[^\t ]+ => ([^\t\(]+) .*${eol_char}$")
616 set(gp_regex_error "not found${eol_char}$")
617 set(gp_regex_fallback "^[\t ]*([^\t ]+) => ([^\t ]+).*${eol_char}$")
618 set(gp_regex_cmp_count 1)
622 if("${gp_tool}" STREQUAL "otool")
623 set(gp_cmd_args "-L")
624 set(gp_regex "^\t([^\t]+) \\(compatibility version ([0-9]+.[0-9]+.[0-9]+), current version ([0-9]+.[0-9]+.[0-9]+)\\)${eol_char}$")
625 set(gp_regex_error "")
626 set(gp_regex_fallback "")
627 set(gp_regex_cmp_count 3)
631 if("${gp_tool}" STREQUAL "dumpbin")
632 set(gp_cmd_args "/dependents")
633 set(gp_regex "^ ([^ ].*[Dd][Ll][Ll])${eol_char}$")
634 set(gp_regex_error "")
635 set(gp_regex_fallback "")
636 set(gp_regex_cmp_count 1)
640 if("${gp_tool}" STREQUAL "objdump")
641 set(gp_cmd_args "-p")
642 set(gp_regex "^\t*DLL Name: (.*\\.[Dd][Ll][Ll])${eol_char}$")
643 set(gp_regex_error "")
644 set(gp_regex_fallback "")
645 set(gp_regex_cmp_count 1)
649 if(NOT gp_tool_known)
650 message(STATUS "warning: gp_tool='${gp_tool}' is an unknown tool...")
651 message(STATUS "CMake function get_prerequisites needs more code to handle '${gp_tool}'")
652 message(STATUS "Valid gp_tool values are dumpbin, ldd, objdump and otool.")
657 if("${gp_tool}" STREQUAL "dumpbin")
658 # When running dumpbin, it also needs the "Common7/IDE" directory in the
659 # PATH. It will already be in the PATH if being run from a Visual Studio
660 # command prompt. Add it to the PATH here in case we are running from a
661 # different command prompt.
663 get_filename_component(gp_cmd_dir "${gp_cmd}" PATH)
664 get_filename_component(gp_cmd_dlls_dir "${gp_cmd_dir}/../../Common7/IDE" ABSOLUTE)
665 # Use cmake paths as a user may have a PATH element ending with a backslash.
666 # This will escape the list delimiter and create havoc!
667 if(EXISTS "${gp_cmd_dlls_dir}")
668 # only add to the path if it is not already in the path
669 set(gp_found_cmd_dlls_dir 0)
670 file(TO_CMAKE_PATH "$ENV{PATH}" env_path)
671 foreach(gp_env_path_element ${env_path})
672 if("${gp_env_path_element}" STREQUAL "${gp_cmd_dlls_dir}")
673 set(gp_found_cmd_dlls_dir 1)
677 if(NOT gp_found_cmd_dlls_dir)
678 file(TO_NATIVE_PATH "${gp_cmd_dlls_dir}" gp_cmd_dlls_dir)
679 set(ENV{PATH} "$ENV{PATH};${gp_cmd_dlls_dir}")
684 # </setup-gp_tool-vars>
686 if("${gp_tool}" STREQUAL "ldd")
687 set(old_ld_env "$ENV{LD_LIBRARY_PATH}")
688 foreach(dir ${exepath} ${dirs})
689 set(ENV{LD_LIBRARY_PATH} "${dir}:$ENV{LD_LIBRARY_PATH}")
694 # Track new prerequisites at each new level of recursion. Start with an
695 # empty list at each level:
699 # Run gp_cmd on the target:
702 COMMAND ${gp_cmd} ${gp_cmd_args} ${target}
703 OUTPUT_VARIABLE gp_cmd_ov
706 if("${gp_tool}" STREQUAL "ldd")
707 set(ENV{LD_LIBRARY_PATH} "${old_ld_env}")
711 message(STATUS "<RawOutput cmd='${gp_cmd} ${gp_cmd_args} ${target}'>")
712 message(STATUS "gp_cmd_ov='${gp_cmd_ov}'")
713 message(STATUS "</RawOutput>")
716 get_filename_component(target_dir "${target}" PATH)
718 # Convert to a list of lines:
720 string(REGEX REPLACE ";" "\\\\;" candidates "${gp_cmd_ov}")
721 string(REGEX REPLACE "\n" "${eol_char};" candidates "${candidates}")
723 # check for install id and remove it from list, since otool -L can include a
724 # reference to itself
726 if("${gp_tool}" STREQUAL "otool")
728 COMMAND otool -D ${target}
729 OUTPUT_VARIABLE gp_install_id_ov
731 # second line is install name
732 string(REGEX REPLACE ".*:\n" "" gp_install_id "${gp_install_id_ov}")
735 string(REGEX MATCH "[^\n ].*[^\n ]" gp_install_id "${gp_install_id}")
736 #message("INSTALL ID is \"${gp_install_id}\"")
740 # Analyze each line for file names that match the regular expression:
742 foreach(candidate ${candidates})
743 if("${candidate}" MATCHES "${gp_regex}")
745 # Extract information from each candidate:
746 if(gp_regex_error AND "${candidate}" MATCHES "${gp_regex_error}")
747 string(REGEX REPLACE "${gp_regex_fallback}" "\\1" raw_item "${candidate}")
749 string(REGEX REPLACE "${gp_regex}" "\\1" raw_item "${candidate}")
752 if(gp_regex_cmp_count GREATER 1)
753 string(REGEX REPLACE "${gp_regex}" "\\2" raw_compat_version "${candidate}")
754 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" compat_major_version "${raw_compat_version}")
755 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" compat_minor_version "${raw_compat_version}")
756 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" compat_patch_version "${raw_compat_version}")
759 if(gp_regex_cmp_count GREATER 2)
760 string(REGEX REPLACE "${gp_regex}" "\\3" raw_current_version "${candidate}")
761 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\1" current_major_version "${raw_current_version}")
762 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\2" current_minor_version "${raw_current_version}")
763 string(REGEX REPLACE "^([0-9]+)\\.([0-9]+)\\.([0-9]+)$" "\\3" current_patch_version "${raw_current_version}")
766 # Use the raw_item as the list entries returned by this function. Use the
767 # gp_resolve_item function to resolve it to an actual full path file if
770 set(item "${raw_item}")
772 # Add each item unless it is excluded:
776 if("${item}" STREQUAL "${gp_install_id}")
780 if(add_item AND ${exclude_system})
782 gp_resolved_file_type("${target}" "${item}" "${exepath}" "${dirs}" type)
784 if("${type}" STREQUAL "system")
790 list(LENGTH ${prerequisites_var} list_length_before_append)
791 gp_append_unique(${prerequisites_var} "${item}")
792 list(LENGTH ${prerequisites_var} list_length_after_append)
795 # If item was really added, this is the first time we have seen it.
796 # Add it to unseen_prereqs so that we can recursively add *its*
799 # But first: resolve its name to an absolute full path name such
800 # that the analysis tools can simply accept it as input.
802 if(NOT list_length_before_append EQUAL list_length_after_append)
803 gp_resolve_item("${target}" "${item}" "${exepath}" "${dirs}" resolved_item)
804 set(unseen_prereqs ${unseen_prereqs} "${resolved_item}")
810 message(STATUS "ignoring non-matching line: '${candidate}'")
815 list(LENGTH ${prerequisites_var} prerequisites_var_length)
816 if(prerequisites_var_length GREATER 0)
817 list(SORT ${prerequisites_var})
820 set(more_inputs ${unseen_prereqs})
821 foreach(input ${more_inputs})
822 get_prerequisites("${input}" ${prerequisites_var} ${exclude_system} ${recurse} "${exepath}" "${dirs}")
826 set(${prerequisites_var} ${${prerequisites_var}} PARENT_SCOPE)
830 function(list_prerequisites target)
831 if("${ARGV1}" STREQUAL "")
837 if("${ARGV2}" STREQUAL "")
838 set(exclude_system 0)
840 set(exclude_system "${ARGV2}")
843 if("${ARGV3}" STREQUAL "")
846 set(verbose "${ARGV3}")
851 set(print_count "${verbose}")
852 set(print_prerequisite_type "${verbose}")
853 set(print_target "${verbose}")
856 get_filename_component(exepath "${target}" PATH)
859 get_prerequisites("${target}" prereqs ${exclude_system} ${all} "${exepath}" "")
862 message(STATUS "File '${target}' depends on:")
865 foreach(d ${prereqs})
866 math(EXPR count "${count} + 1")
869 set(count_str "${count}. ")
872 if(print_prerequisite_type)
873 gp_file_type("${target}" "${d}" type)
874 set(type_str " (${type})")
877 message(STATUS "${count_str}${d}${type_str}")
882 function(list_prerequisites_by_glob glob_arg glob_exp)
883 message(STATUS "=============================================================================")
884 message(STATUS "List prerequisites of executables matching ${glob_arg} '${glob_exp}'")
886 file(${glob_arg} file_list ${glob_exp})
887 foreach(f ${file_list})
888 is_file_executable("${f}" is_f_executable)
890 message(STATUS "=============================================================================")
891 list_prerequisites("${f}" ${ARGN})