Review Request: Build-infra update

[Kelly O'Hair]

On Jun 4, 2012, at 9:52 AM, Kelly O'Hair wrote:

> although I was puzzled by the  "| $(BUILD_JDK)"  in
>  314 $(JDK_OUTPUTDIR)/classes/_the.jdk.base.headers: $(JDK_BASE_HEADER_JAVA_FILES) | $(BUILD_JDK)
> Never seen a | character in the dependencies before, is that a valid syntax?
> 
> -kto


Never mind about the |, learn something new everyday.  This was new to GNU make 3.80, and I wasn't aware of it until now.
http://www.gnu.org/software/make/manual/make.html#Prerequisite-Types

-kto

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