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In GNU Make commit 07fcee35 ([SV 64815] Recipe lines cannot contain
conditional statements, 2023-05-22) and following, conditional
statements may no longer be preceded by a tab character (which Make
refers to as the recipe prefix).
There are a handful of spots in our various Makefile(s) which will break
in a future release of Make containing 07fcee35. For instance, trying to
compile the pre-image of this patch with the tip of make.git results in
the following:
$ make -v | head -1 && make
GNU Make 4.4.90
config.mak.uname:842: *** missing 'endif'. Stop.
The kernel addressed this issue in 82175d1f9430 (kbuild: Replace tabs
with spaces when followed by conditionals, 2024-01-28). Address the
issues in Git's tree by applying the same strategy.
When a conditional word (ifeq, ifneq, ifdef, etc.) is preceded by one or
more tab characters, replace each tab character with 8 space characters
with the following:
find . -type f -not -path './.git/*' -name Makefile -or -name '*.mak' |
xargs perl -i -pe '
s/(\t+)(ifn?eq|ifn?def|else|endif)/" " x (length($1) * 8) . $2/ge unless /\\$/
'
The "unless /\\$/" removes any false-positives (like "\telse \"
appearing within a shell script as part of a recipe).
After doing so, Git compiles on newer versions of Make:
$ make -v | head -1 && make
GNU Make 4.4.90
GIT_VERSION = 2.44.0.414.gfac1dc44ca9
[...]
$ echo $?
0
Reported-by: Dario Gjorgjevski <dario.gjorgjevski@gmail.com>
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
80 lines
2.2 KiB
Makefile
80 lines
2.2 KiB
Makefile
# The default target of this Makefile is...
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all::
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prefix ?= $(HOME)
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bindir ?= $(prefix)/bin
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sharedir ?= $(prefix)/share
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gitk_libdir ?= $(sharedir)/gitk/lib
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msgsdir ?= $(gitk_libdir)/msgs
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msgsdir_SQ = $(subst ','\'',$(msgsdir))
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TCL_PATH ?= tclsh
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TCLTK_PATH ?= wish
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INSTALL ?= install
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RM ?= rm -f
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DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
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bindir_SQ = $(subst ','\'',$(bindir))
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TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH))
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### Detect Tck/Tk interpreter path changes
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TRACK_TCLTK = $(subst ','\'',-DTCLTK_PATH='$(TCLTK_PATH_SQ)')
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GIT-TCLTK-VARS: FORCE
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@VARS='$(TRACK_TCLTK)'; \
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if test x"$$VARS" != x"`cat $@ 2>/dev/null`" ; then \
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echo 1>&2 " * new Tcl/Tk interpreter location"; \
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echo "$$VARS" >$@; \
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fi
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## po-file creation rules
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XGETTEXT ?= xgettext
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ifdef NO_MSGFMT
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MSGFMT ?= $(TCL_PATH) po/po2msg.sh
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else
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MSGFMT ?= msgfmt
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ifneq ($(shell $(MSGFMT) --tcl -l C -d . /dev/null 2>/dev/null; echo $$?),0)
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MSGFMT := $(TCL_PATH) po/po2msg.sh
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endif
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endif
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PO_TEMPLATE = po/gitk.pot
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ALL_POFILES = $(wildcard po/*.po)
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ALL_MSGFILES = $(subst .po,.msg,$(ALL_POFILES))
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ifndef V
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QUIET = @
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QUIET_GEN = $(QUIET)echo ' ' GEN $@ &&
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endif
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all:: gitk-wish $(ALL_MSGFILES)
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install:: all
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(bindir_SQ)'
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$(INSTALL) -m 755 gitk-wish '$(DESTDIR_SQ)$(bindir_SQ)'/gitk
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$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(msgsdir_SQ)'
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$(foreach p,$(ALL_MSGFILES), $(INSTALL) -m 644 $p '$(DESTDIR_SQ)$(msgsdir_SQ)' &&) true
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uninstall::
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$(foreach p,$(ALL_MSGFILES), $(RM) '$(DESTDIR_SQ)$(msgsdir_SQ)'/$(notdir $p) &&) true
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$(RM) '$(DESTDIR_SQ)$(bindir_SQ)'/gitk
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clean::
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$(RM) gitk-wish po/*.msg GIT-TCLTK-VARS
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gitk-wish: gitk GIT-TCLTK-VARS
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$(QUIET_GEN)$(RM) $@ $@+ && \
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sed -e '1,3s|^exec .* "$$0"|exec $(subst |,'\|',$(TCLTK_PATH_SQ)) "$$0"|' <gitk >$@+ && \
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chmod +x $@+ && \
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mv -f $@+ $@
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$(PO_TEMPLATE): gitk
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$(XGETTEXT) -kmc -LTcl -o $@ gitk
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update-po:: $(PO_TEMPLATE)
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$(foreach p, $(ALL_POFILES), echo Updating $p ; msgmerge -U $p $(PO_TEMPLATE) ; )
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$(ALL_MSGFILES): %.msg : %.po
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@echo Generating catalog $@
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$(MSGFMT) --statistics --tcl $< -l $(basename $(notdir $<)) -d $(dir $@)
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.PHONY: all install uninstall clean update-po
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.PHONY: FORCE
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