bugGNU GRUB - Bugs: bug #54811, After running 'configure' with a...


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bug #54811: After running 'configure' with a existing cache, bulid fails with '/symbol.h:36:20: error: #if with no expression'

Submitter:  Mark Wutzke <mwutzke>
Submitted:  Tue 09 Oct 2018 10:12:48 PM UTC
Category:  Compilation Severity:  Major
Priority:  5 - Normal Item Group:  Software Error
Status:  None Privacy:  Public
Assigned to:  None Originator Name: 
Open/Closed:  Open Release:  2.02
Release:  Reproducibility:  Intermittent
Planned Release:  None

Tue 09 Oct 2018 10:12:48 PM UTC, original submission:  

When 'configure' (2.0.2 and mainline) is re-executed with an existing autoconf config.cache, the generated config.h contains the following:

  config.h:#define HAVE_ASM_USCORE

which then generates a compile time error like the following:

In file included from ../include/../include/grub/cache.h:23:0,
                 from symlist.h:2:
../include/grub/symbol.h:36:20: error: #if with no expression
Makefile:41364: recipe for target 'symlist.c' failed

The attached patch resolves this by moving the setup of HAVE_ASM_USCORE in grub_ASM_USCORE, to be outside the AC_CACHE_VAL macro, which is not supposed to have side effects.

Mark Wutzke <mwutzke>


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Attached Files
file #45172:  0001-grub-Allow-configure-be-re-run-with-cache.patch added by mwutzke (1KiB - application/octet-stream - Proposed patch)


Depends on the following items: None found

Items that depend on this one: None found


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    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2018-10-09 mwutzke Attached File- Added 0001-grub-Allow-configure-be-re-run-with-cache.patch, #45172

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