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[committed] hppa: Update handling of internal labels on hppa-hpux

In a recent build for hppa64-hp-hpux11.11, the build failed in stage2 due to a warning about the format used in the  ASM_GENERATE_INTERNAL_LABEL macro.  This got me looking at the implementation in elfos.h.  I also realized that there was no good reason to limit the number of labels to 9999 and 
to prefix the label numbers with zeros.
The attached patch revises the label generation on hppa-hpux to use the same technique as used in 
config/elfos.h.
Tested on hppa2.0w-hp-hpux11.11, hppa64-hp-hpux11.11 and hppa-unknown-linux-gnu with no 
observed regressions.

Committed to trunk.

Dave

--
John David Anglin  dave.anglin@bell.net

Attachment: ASM_GENERATE_INTERNAL_LABEL-2.d
Description: Text document

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