mirror of
https://github.com/git/git
synced 2024-08-28 12:09:19 +00:00
![Junio C Hamano](/assets/img/avatar_default.png)
If a platform lacks the support to specify the dynamic library path, there is no suitable value to give to the CC_LD_DYNPATH variable. Allow them to be set to an empty string to signal that they do not need to add the usual -Wl,-rpath, or -R or whatever option followed by a directory name. This way, $(call libpath_template,$(SOMELIBDIR)) would expand to just a single mention of that directory, i.e. -L$(SOMELIBDIR) when CC_LD_DYNPATH is set to an empty string (or a "-L", which would have repeated the same "-L$(SOMELIBDIR)" twice without any ill effect). Signed-off-by: Junio C Hamano <gitster@pobox.com>
119 lines
3.6 KiB
Makefile
119 lines
3.6 KiB
Makefile
### Remove GNU make implicit rules
|
|
|
|
## This speeds things up since we don't need to look for and stat() a
|
|
## "foo.c,v" every time a rule referring to "foo.c" is in play. See
|
|
## "make -p -f/dev/null | grep ^%::'".
|
|
%:: %,v
|
|
%:: RCS/%,v
|
|
%:: RCS/%
|
|
%:: s.%
|
|
%:: SCCS/s.%
|
|
|
|
## Likewise delete default $(SUFFIXES). See:
|
|
##
|
|
## info make --index-search=.SUFFIXES
|
|
.SUFFIXES:
|
|
|
|
### Flags affecting all rules
|
|
|
|
# A GNU make extension since gmake 3.72 (released in late 1994) to
|
|
# remove the target of rules if commands in those rules fail. The
|
|
# default is to only do that if make itself receives a signal. Affects
|
|
# all targets, see:
|
|
#
|
|
# info make --index-search=.DELETE_ON_ERROR
|
|
.DELETE_ON_ERROR:
|
|
|
|
### Global variables
|
|
|
|
## comma, empty, space: handy variables as these tokens are either
|
|
## special or can be hard to spot among other Makefile syntax.
|
|
comma := ,
|
|
empty :=
|
|
space := $(empty) $(empty)
|
|
|
|
### Quieting
|
|
## common
|
|
QUIET_SUBDIR0 = +$(MAKE) -C # space to separate -C and subdir
|
|
QUIET_SUBDIR1 =
|
|
|
|
ifneq ($(findstring w,$(firstword -$(MAKEFLAGS))),w)
|
|
PRINT_DIR = --no-print-directory
|
|
else # "make -w"
|
|
NO_SUBDIR = :
|
|
endif
|
|
|
|
ifneq ($(findstring s,$(firstword -$(MAKEFLAGS))),s)
|
|
ifndef V
|
|
## common
|
|
QUIET_SUBDIR0 = +@subdir=
|
|
QUIET_SUBDIR1 = ;$(NO_SUBDIR) echo ' ' SUBDIR $$subdir; \
|
|
$(MAKE) $(PRINT_DIR) -C $$subdir
|
|
|
|
QUIET = @
|
|
QUIET_GEN = @echo ' ' GEN $@;
|
|
|
|
QUIET_MKDIR_P_PARENT = @echo ' ' MKDIR -p $(@D);
|
|
|
|
## Used in "Makefile"
|
|
QUIET_CC = @echo ' ' CC $@;
|
|
QUIET_AR = @echo ' ' AR $@;
|
|
QUIET_LINK = @echo ' ' LINK $@;
|
|
QUIET_BUILT_IN = @echo ' ' BUILTIN $@;
|
|
QUIET_CP = @echo ' ' CP $< $@;
|
|
QUIET_LNCP = @echo ' ' LN/CP $@;
|
|
QUIET_XGETTEXT = @echo ' ' XGETTEXT $@;
|
|
QUIET_MSGINIT = @echo ' ' MSGINIT $@;
|
|
QUIET_MSGFMT = @echo ' ' MSGFMT $@;
|
|
QUIET_MSGMERGE = @echo ' ' MSGMERGE $@;
|
|
QUIET_GCOV = @echo ' ' GCOV $@;
|
|
QUIET_SP = @echo ' ' SP $<;
|
|
QUIET_HDR = @echo ' ' HDR $(<:hcc=h);
|
|
QUIET_RC = @echo ' ' RC $@;
|
|
|
|
## Used in "Makefile": SPATCH
|
|
QUIET_SPATCH = @echo ' ' SPATCH $< \>$@;
|
|
QUIET_SPATCH_TEST = @echo ' ' SPATCH TEST $(@:.build/%=%);
|
|
QUIET_SPATCH_CAT = @echo ' ' SPATCH CAT $(@:%.patch=%.d/)\*\*.patch \>$@;
|
|
|
|
## Used in "Documentation/Makefile"
|
|
QUIET_ASCIIDOC = @echo ' ' ASCIIDOC $@;
|
|
QUIET_XMLTO = @echo ' ' XMLTO $@;
|
|
QUIET_DB2TEXI = @echo ' ' DB2TEXI $@;
|
|
QUIET_MAKEINFO = @echo ' ' MAKEINFO $@;
|
|
QUIET_DBLATEX = @echo ' ' DBLATEX $@;
|
|
QUIET_XSLTPROC = @echo ' ' XSLTPROC $@;
|
|
QUIET_GEN = @echo ' ' GEN $@;
|
|
QUIET_STDERR = 2> /dev/null
|
|
|
|
QUIET_LINT_GITLINK = @echo ' ' LINT GITLINK $<;
|
|
QUIET_LINT_MANSEC = @echo ' ' LINT MAN SEC $<;
|
|
QUIET_LINT_MANEND = @echo ' ' LINT MAN END $<;
|
|
|
|
export V
|
|
endif
|
|
endif
|
|
|
|
### Templates
|
|
|
|
## mkdir_p_parent: lazily "mkdir -p" the path needed for a $@
|
|
## file. Uses $(wildcard) to avoid the "mkdir -p" if it's not
|
|
## needed.
|
|
##
|
|
## Is racy, but in a good way; we might redundantly (and safely)
|
|
## "mkdir -p" when running in parallel, but won't need to exhaustively create
|
|
## individual rules for "a" -> "prefix" -> "dir" -> "file" if given a
|
|
## "a/prefix/dir/file". This can instead be inserted at the start of
|
|
## the "a/prefix/dir/file" rule.
|
|
define mkdir_p_parent_template
|
|
$(if $(wildcard $(@D)),,$(QUIET_MKDIR_P_PARENT)$(shell mkdir -p $(@D)))
|
|
endef
|
|
|
|
## Getting sick of writing -L$(SOMELIBDIR) $(CC_LD_DYNPATH)$(SOMELIBDIR)?
|
|
## Write $(call libpath_template,$(SOMELIBDIR)) instead, perhaps?
|
|
## With CC_LD_DYNPATH set to either an empty string or to "-L", the
|
|
## the directory is not shown the second time.
|
|
define libpath_template
|
|
-L$(1) $(if $(filter-out -L,$(CC_LD_DYNPATH)),$(CC_LD_DYNPATH)$(1))
|
|
endef
|