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build: Expose xz compression level

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On machines with limited resources a fair tradeoff could be trading
result size with less memory and cpu consumption. Expose a variable
that overrides the default (9).

Note: xz is often used to gain maximum possible compression, so
avoid lowering this if possible.

PR-URL: https://github.com/iojs/io.js/pull/1428
Reviewed-By: Rod Vagg <rod@vagg.org>
This commit is contained in:
Johan Bergström 2015-04-15 10:49:29 +10:00
parent a530b2baf1
commit c7769d417b
1 changed files with 3 additions and 2 deletions
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5
Makefile
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@ -223,6 +223,7 @@ TARBALL=$(TARNAME).tar
BINARYNAME=$(TARNAME)-$(PLATFORM)-$(ARCH)
BINARYTAR=$(BINARYNAME).tar
XZ=$(shell which xz > /dev/null 2>&1; echo $$?)
XZ_COMPRESSION ?= 9
PKG=out/$(TARNAME).pkg
PACKAGEMAKER ?= /Developer/Applications/Utilities/PackageMaker.app/Contents/MacOS/PackageMaker
@ -296,7 +297,7 @@ $(TARBALL): release-only $(NODE_EXE) doc
rm -rf $(TARNAME)
gzip -c -f -9 $(TARNAME).tar > $(TARNAME).tar.gz
ifeq ($(XZ), 0)
xz -c -f -9 $(TARNAME).tar > $(TARNAME).tar.xz
xz -c -f -$(XZ_COMPRESSION) $(TARNAME).tar > $(TARNAME).tar.xz
endif
rm $(TARNAME).tar
@ -314,7 +315,7 @@ $(BINARYTAR): release-only
rm -rf $(BINARYNAME)
gzip -c -f -9 $(BINARYNAME).tar > $(BINARYNAME).tar.gz
ifeq ($(XZ), 0)
xz -c -f -9 $(BINARYNAME).tar > $(BINARYNAME).tar.xz
xz -c -f -$(XZ_COMPRESSION) $(BINARYNAME).tar > $(BINARYNAME).tar.xz
endif
rm $(BINARYNAME).tar