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of directories that make searches for included makefiles.
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I decided this feature was too impacting to make the permanent default
behavior. This set of changes makes the default behavior of make the
old behavior (no second expansion). If you want second expansion, you
must define the .SECONDEXPANSION: special target before the first target
that needs it.
This set of changes ONLY fixes explicit and static pattern rules to work
like this. Implicit rules still have second expansion enabled all the
time: I'll work on that next.
Note that there is still a backward-incompatibility: now to get the old
SysV behavior using $$@ etc. in the prerequisites list you need to set
.SECONDEXPANSION: as well.
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follow POSIX backslash/newline conventions.
Use a different method for testing the SHELL variable, which hopefully
will work better on non-UNIX systems.
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and OS/2 changes).
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When rebuilding makefiles, unset -B if MAKE_RESTARTS is >0.
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Taylor. There are two forms of this: first, it was possible to lose
tokens when using -j and -l at the same time, because waiting jobs were
not checked when determining whether any jobs were outstanding. Second,
if you had an exported recursive variable that contained a $(shell ...)
function there is a possibility to lose tokens, since a token was taken
but the child list was not updated until after the shell function was
complete.
To resolve this I introduced a new variable that counted the number of
tokens we have obtained, rather than checking whether there were any
children on the list. I also added some sanity checks to make sure we
weren't writing back too many or not enough tokens. And, the master
make will drain the token pipe before exiting and compare the count of
tokens at the end to what was written there at the beginning.
Also:
* Ensure a bug in the environment (missing "=") doesn't cause make to core.
* Rename the .DEFAULT_TARGET variable to .DEFAULT_GOAL, to match the
terminology in the documentation and other variables like MAKECMDGOALS.
* Add documentation of the .DEFAULT_GOAL special variable.
Still need to document the secondary expansion stuff...
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* New function: $(info ...)
* Disallow $(eval ...) to create prereq relationships inside command scripts
(caused core dumps)
* Try to allow more tests to succeed in Windows/DOS by sanitizing CRLF and \
* Various bug fixes and code cleanups (see the ChangeLog entry)
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rules, static pattern rules and implicit rules.
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Add a regression test for "@" before a define/enddef vs. one inside.
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POSIX requires that the value of SHELL in the makefile NOT be exported
to sub-commands. Instead, the value in the environment when make was
invoked should be passed to the environment of sub-commands. Note that
make still uses SHELL to _run_ sub-commands; it just doesn't change the
value of the SHELL variable in the environment of sub-commands.
As an extension to POSIX, if the makefile explicitly exports SHELL then
GNU make _will_ use it in the environment of sub-commands.
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Allow run_make_tests() to be invoked with an undef makefile string, in
which case it re-uses the previous string.
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- OS/2 Patches
- OpenVMS updates
- Sanitize the handling of -include/sinclude with and without -k
- Fix the setting of $< for order-only rules.
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A number of W32 cleanups from J.Grant.
A number of OS/2 cleanups from Andreas Buening.
Various random bug fixes.
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Allow SysV-style variable references to use {} in addition to ().
Add variable.h to the POTFILES.in since it has a translatable string.
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* Never use "touch" in make rules; it breaks on most sub-second
supporting systems. Use echo "" > $@ instead.
* Forgot to close test makefiles before using them!
All the above worked fine on Linux but failed miserably on Solaris.
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Add -B option docs.
Add .VARIABLES variable.
Add a few new tests.
Add a new translation: Swedish
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decided to implement this a different way, and didn't use it.
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Add a new test suite for automatic variables.
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New version of the manual, put into the doc subdir.
Enhancements: $(eval ...) and $(value ...) functions, various bug
fixes, etc. See the ChangeLog.
More to come.
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Fix: make flags on some lines of define/endef don't affect other lines
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* Apply changes from Paul Eggert.
* Many other cleanups (index/rindex --> strchr/strrchr, etc.)
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