_BOOTDIR1 on MS Windows platform

[Kelly O'Hair]

Sorry I'm so slow in responding to this...

The primary reason for the special case on Windows is the unreliability
and slowness of the network connections.
Builds using a local jdk vs. a J:/ mapped can be 5 hours long when
they might normally be 1hr or less. These just come from reports I
have gotten over the years, and it's really depends on the Windows
machine, the network, etc.

Bottom line, builds are always faster and more reliable when all components
are stored on local disk, and this is particularly true on Windows.

Having said all that, I ALWAYS set ALT_BOOTDIR to my local copy
(and ALT_JDK_IMPORT_PATH too). So I probably would not be impacted
by this change, but I bet quite a few people rely on this c:/jdk1.6.0
default. With enough warning you might be able to change this.

---

I have been recently working on the JavaFX build dependency issues
and although it's more ant based, some of the techniques could apply
to making OpenJDK builds easier. Unfortunately, there is only 24hrs
in a day. :^{

-kto


Anthony Petrov wrote:
> Hello,
> 
> Back in 2007 we already discussed this issue with Kelly, but 
> transitioning to Mercurial just stopped the work. So, I would like to 
> revive this now.
> 
> Here's a part of the output generated by `grep -r BOOTDIR make/*`:
> 
>> make/common/shared/Defs-solaris.gmk:  _BOOTDIR1  
>> =$(SLASH_JAVA)/re/jdk/$(PREVIOUS_JDK_VERSION)/archive/fcs/binaries/$(PLATFORM)-$(ARCH) 
>>
>> make/common/shared/Defs-solaris.gmk:  _BOOTDIR2  
>> =$(USRJDKINSTANCES_PATH)/jdk$(PREVIOUS_JDK_VERSION)
>> make/common/shared/Defs-windows.gmk:  _BOOTDIR1  
>> =$(_system_drive)/jdk$(PREVIOUS_JDK_VERSION)
>> make/common/shared/Defs-windows.gmk:  _BOOTDIR2  
>> =$(USRJDKINSTANCES_PATH)/jdk$(PREVIOUS_JDK_VERSION)
>> make/common/shared/Defs-linux.gmk:  _BOOTDIR1  
>> =$(SLASH_JAVA)/re/jdk/$(PREVIOUS_JDK_VERSION)/archive/fcs/binaries/$(PLATFORM)-$(ARCH) 
>>
>> make/common/shared/Defs-linux.gmk:  _BOOTDIR2  
>> =$(USRJDKINSTANCES_PATH)/jdk$(PREVIOUS_JDK_VERSION)
> 
> One can notice that the _BOOTDIR1 is defined differently on MS Windows 
> platform. I would like to propose a change so that its value would be 
> the same as on other platforms. The SLASH_JAVA on MS Windows equals to 
> the J: drive. So one could setup the same directory tree as on 
> Linux/Solaris, use the subst command to make the directory the J: drive, 
> and be able to build the jdk w/o specifying the ALT_BOOTDIR variable 
> manually.
> 
> Is there any objection to removing the 
> $(_system_drive)/jdk$(PREVIOUS_JDK_VERSION) default path?
> 
> -- 
> best regards,
> Anthony