Bug 613010 – Strange error message from rpmbuild

Bug 613010 - Strange error message from rpmbuild

Summary:	Strange error message from rpmbuild

Status:	CLOSED UPSTREAM

Aliases:	None

Product:	Fedora
Classification:	Fedora
Component:	rpm (Show other bugs)
Sub Component:
Version:	rawhide
Hardware:	All Linux

Priority	low Severity medium
Target Milestone:	---
Target Release:	---
Assigned To:	Jindrich Novy
QA Contact:	Fedora Extras Quality Assurance
Docs Contact:

URL:
Whiteboard:
Keywords:	Reopened

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2010-07-09 10:16 EDT by Richard W.M. Jones
Modified:	2013-07-02 19:46 EDT (History)
CC List:	5 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
Story Points:	---
Clone Of:
Environment:
Last Closed:	2010-07-13 08:10:32 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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Description Richard W.M. Jones 2010-07-09 10:16:11 EDT

Description of problem:

$ rpmbuild -ta guestfs-browser-0.0.3.tar.gz 
error: Recursion depth(17) greater than max(16)
 15<                               (empty)
 14<                             (empty)
 13<                           (empty)
 12<                         (empty)
 11<                       (empty)
 10<                     (empty)
  9<                   (empty)
  8<                 (empty)
  7<               (empty)
  6<             (empty)
  5<           (empty)
  4<         (empty)
  3<       (empty)
  2<     (empty)
  1<   (empty)
  0< Source0:        http://people.redhat.com/~rjones/guestfs-browser/files/guestfs-browser-
error: line 10: Source0:        http://people.redhat.com/~rjones/guestfs-browser/files/guestfs-browser-

Version-Release number of selected component (if applicable):

rpm-build.x86_64 0:4.8.1-3.fc14

How reproducible:

Always.

Steps to Reproduce:
1. Download http://annexia.org/tmp/guestfs-browser-0.0.3.tar.gz
2. Run rpmbuild -ta guestfs-browser-0.0.3.tar.gz
3.
  
Actual results:

Strange error message.

Expected results:

Understandable error message.

Additional info:

Comment 1 Jindrich Novy 2010-07-09 11:30:18 EDT

The message is rather cryptic but makes perfect sense. Note that you have Version: %{version} at line 2 in the spec file what leads macro evaluator to infinite loop when evaluating Source0 at line 9 in spec:

Source0: http://people.redhat.com/~rjones/guestfs-browser/files/guestfs-browser-%{version}.tar.gz

Please fix your spec file.

Comment 2 Richard W.M. Jones 2010-07-09 12:24:52 EDT

I'm not an idiot.  I understand there is a problem with the
spec file, but the error message doesn't say anything useful
such as "you shouldn't use symbol %{version} recursively".

Comment 3 Jeff Johnson 2010-07-09 19:52:35 EDT

All macro processors do not have sufficient context to provide
useful errot messages in situ, largely because there are multiple
contexts associated.

But sure a better error message could/should/would help.

So would better input to the macro expansion.

Comment 4 Jindrich Novy 2010-07-13 08:10:32 EDT

Fixed upstream.

The new error message now looks like:

error: Too many levels of recursion in macro expansion. It is likely caused by recursive macro declaration.
error: line 10: Source0:        http://people.redhat.com/~rjones/guestfs-browser/files/guestfs-browser-

and the macro stack backtrace is now redirected to debug log in order to avoid user confusion.

Comment 5 Richard W.M. Jones 2010-07-13 08:44:16 EDT

Much better, thanks.

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