RFR: JDK-8043127: Convert JPRT_ARCHIVE_BUNDLE to unix style paths

[Tim Bell]

Hi Erik:

> Please review this minor fix for jdk9. The input variables 
> JPRT_ARCHIVE_BUNDLE and JPRT_ARCHIVE_INSTALL_BUNDLE are typically 
> provided by JPRT using the Windows mixed path (c:/jprt/...). We would 
> like to stop using a special version of gnu make in JPRT to handle 
> paths with colon in them. The solution is to convert these paths 
> before trying to use them.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8043127
> Patch inline:

Looks good to me.

Tim

> diff -r b84fc0b1efc2 make/Jprt.gmk
> --- a/make/Jprt.gmk
> +++ b/make/Jprt.gmk
> @@ -23,8 +23,22 @@
>  # questions.
>  #
>
> -# This file is contains targets utilities needed by JPRT.
> +# This file contains targets and utilities needed by JPRT.
>
> +# Cygpath is only defined when running on Cygwin
> +ifneq ($(CYGPATH), )
> +  # If we get JPRT_ARCHIVE_*BUNDLE externally, make sure they have 
> /cygdrive
> +  # style paths
> +  ifdef JPRT_ARCHIVE_BUNDLE
> +    override JPRT_ARCHIVE_BUNDLE := $(shell $(CYGPATH) -u 
> $(JPRT_ARCHIVE_BUNDLE))
> +  endif
> +  ifdef JPRT_ARCHIVE_INSTALL_BUNDLE
> +    override JPRT_ARCHIVE_INSTALL_BUNDLE := $(shell $(CYGPATH) -u 
> $(JPRT_ARCHIVE_INSTALL_BUNDLE))
> +  endif
> +endif
> +
> +# When running in JPRT these will be provided. Need defaults so that 
> this makefile
> +# is valid anyway.
>  ifndef JPRT_ARCHIVE_BUNDLE
>    JPRT_ARCHIVE_BUNDLE=/tmp/jprt_bundles/j2sdk-image.zip
>  endif
>