View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000518 | 1003.1(2008)/Issue 7 | Shell and Utilities | public | 2011-11-27 21:35 | 2024-06-11 08:53 |
| Reporter | dwheeler | Assigned To | ajosey | ||
| Priority | normal | Severity | Objection | Type | Clarification Requested |
| Status | Closed | Resolution | Accepted As Marked | ||
| Name | David A. Wheeler | ||||
| Organization | |||||
| User Reference | |||||
| Section | make | ||||
| Page Number | 2912 | ||||
| Line Number | 95667-95688 | ||||
| Interp Status | --- | ||||
| Final Accepted Text | 0000518:0001190 | ||||
| Summary | 0000518: Allow make's "include" to include multiple files | ||||
| Description | In many cases it's useful to tell "make" to include a set of files, not just a single file. This list of files may, for example, be in a make variable. This can happen when dealing with automated dependencies (see bug #328), but it can happen in other cases too. Currently the standard specifically does not require support for multiple filenames in include - but it doesn't forbid it, either. Adding this feature lets you do stuff like the following (presuming bug #330 and bug #512 are accepted), as a sample use case among many: all: prog SRCS ::= $(wildcard src/*.c) OBJS ::= $(SRCS:.c=.o) DEPS ::= $(SRCS:.c=.d) # ... Define .c.o here so that FILE.o's dependencies end up in FILE.d ... # E.G., see http://make.paulandlesley.org/autodep.html -include $(DEPS) prog: $(OBJS) $(CC) $(CFLAGS) -o $@ $(OBJS) | ||||
| Desired Action | Replace lines 95667-95688 in make's definition ("Include Lines") with: Include Lines If the word include appears at the beginning of a line and is followed by one or more <blank> characters, the string formed by the remainder of the line shall be processed as follows to produce one or more pathnames: • The trailing <newline> and any comment shall be discarded. If the resulting string contains any double-quote characters (’"’) the behavior is unspecified. • The resulting string shall be processed for macro expansion (see Macros (on page 2914). • Any <blank> and <tab> characters that appear after the first non-<blank> shall be used as separators to divide the macro-expanded string into fields. It is unspecified whether pathname expansion (see Section 2.13, on page 2332) is also performed. • If the processing of separators and optional pathname expansion results in zero fields, the behavior is unspecified. If it results in at least one non-empty field, these fields are taken as the pathnames. For each pathname so identified, in the order specified: * Each pathname that does not begin with a ’/’ shall be treated as relative to the current working directory of the process, not relative to the directory containing the makefile. If the file does not exist in this location, it is unspecified whether additional directories are searched. * The contents of the file specified by the pathname shall be read and processed as if they appeared in the makefile in place of the include line. If the file ends with an escaped <newline> the behavior is unspecified. * The file may itself contain further include lines. Implementations shall support nesting of include files up to a depth of at least 16. | ||||
| Tags | issue8 | ||||
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(This is the desired action minus the "and <tab>" addition, which is not needed because <blank> includes <space> and <tab> characters.) Replace lines 95667-95688 in make's definition ("Include Lines") with: Include Lines If the word include appears at the beginning of a line and is followed by one or more <blank> characters, the string formed by the remainder of the line shall be processed as follows to produce one or more pathnames: * The trailing <newline> and any comment shall be discarded. If the resulting string contains any double-quote characters (’"’) the behavior is unspecified. * The resulting string shall be processed for macro expansion (see Macros (on page 2914). * Any <blank> characters that appear after the first non-<blank> shall be used as separators to divide the macro-expanded string into fields. It is unspecified whether pathname expansion (see Section 2.13, on page 2332) is also performed. * If the processing of separators and optional pathname expansion results in zero fields, the behavior is unspecified. If it results in at least one non-empty field, these fields are taken as the pathnames. For each pathname so identified, in the order specified: * Each pathname that does not begin with a ’/’ shall be treated as relative to the current working directory of the process, not relative to the directory containing the makefile. If the file does not exist in this location, it is unspecified whether additional directories are searched. * The contents of the file specified by the pathname shall be read and processed as if they appeared in the makefile in place of the include line. If the file ends with an escaped <newline> the behavior is unspecified. * The file may itself contain further include lines. Implementations shall support nesting of include files up to a depth of at least 16. |
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Note that when applying the changes from this bug, I noted that other changes had been made to the Include Lines subsection since the 2008 edition, and therefore I did not follow the instruction to replace that section with the new text, but instead identified the changes between the 2008 edition text and the text given here and then applied equivalent changes to the current text. Some of the intervening changes were from bug 0000333 adding -include ("silent includes"), but there were also some TC changes. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2011-11-27 21:35 | dwheeler | New Issue | |
| 2011-11-27 21:35 | dwheeler | Status | New => Under Review |
| 2011-11-27 21:35 | dwheeler | Assigned To | => ajosey |
| 2011-11-27 21:35 | dwheeler | Name | => David A. Wheeler |
| 2011-11-27 21:35 | dwheeler | Section | => make |
| 2011-11-27 21:35 | dwheeler | Page Number | => 2912 |
| 2011-11-27 21:35 | dwheeler | Line Number | => 95667-95688 |
| 2012-04-05 16:02 | geoffclare | Note Added: 0001190 | |
| 2012-04-05 16:03 | geoffclare | Interp Status | => --- |
| 2012-04-05 16:03 | geoffclare | Final Accepted Text | => 0000518:0001190 |
| 2012-04-05 16:03 | geoffclare | Status | Under Review => Resolved |
| 2012-04-05 16:03 | geoffclare | Resolution | Open => Accepted As Marked |
| 2012-04-05 16:04 | geoffclare | Tag Attached: issue8 | |
| 2020-03-18 15:21 | geoffclare | Note Added: 0004798 | |
| 2020-03-18 15:21 | geoffclare | Status | Resolved => Applied |
| 2020-03-18 15:21 | geoffclare | Relationship added | related to 0000333 |
| 2024-06-11 08:53 | agadmin | Status | Applied => Closed |
