Synopsis

scl-utils bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated scl-utils packages that fix several bugs are now available for Red Hat
Enterprise Linux 6.

Description

The scl-utils packages provide a runtime utility and RPM packaging macros for
packaging Software Collections. Software Collections allow users to concurrently
install multiple versions of the same RPM packages on the system. Using the scl
utility, users may enable specific versions of RPMs, which are installed into
the /opt directory.

This update fixes the following bugs:

• Previously, detection of collections that were specified to be enabled was
  done in the incorrect place in the code. Thus, if users wanted to enable
  multiple collections with a single command, only the first one was enabled,
  while the rest were ignored. With this update, the package scans all the
  arguments now, as opposed to the original approach where only the first one was
  taken, and all specified collections are now enabled.(BZ#949995)
  
• When starting an inspection of what collections had already been enabled, an
  incorrect variable was taken as a source of this information. In a specific
  case, when users ran a shell in an scl-enabled environment, and tried to enable
  an already-enabled collection, then the collection was enabled twice. This could
  have led to errors in a newly created environment, and, consequently, could have
  caused problems with applications running in this environment. This update
  accepts the correct variable as a source of information about the
  already-enabled collections, and the collections are no longer enabled multiple
  times. (BZ#955669)
  
• Previously, python27 required a specific byte compiler, thus, the build of
  python27 collection failed, because it used the incorrect byte compiler. With
  this update, python27 utilizes a new function to override various RPM macros
  and, thus, can be compiled. (BZ#957185)
  
• If the PATH variable was not set as scl-utils expected it, executing the "scl
  enable" command produced a "command not found" error. This was caused by the scl
  utility calling the scl_enabled command without an absolute path, and relying on
  the PATH that the user has set. This update uses an absolute path when calling
  the scl_enabled helper script, thus it does not rely on PATH any more, and the
  aforementioned errors no longer occur. (BZ#957754)
  
• Previously, when enabling collections, a check whether a collection was
  enabled was performed. However, independently of the result the collection was
  always enabled. Consequently, if a single collection had been stated multiple
  times on the command line, it was enabled multiple times. In the case of some
  destructive enable scriptlets, this might have led to unexpected behavior. This
  update runs the enable scriptlet only if the collection has not been enabled
  before, and attempts to enable a collection multiple times in one environment
  will be ignored. (BZ#964058)
  

Users of scl-utils are advised to upgrade to these updated packages, which fix
these bugs.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/site/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386

Fixes

• BZ - 955669 - A collection can get twice-enabled
• BZ - 964058 - No check for already enabled collections in scl enable <collection>+ <command>

CVEs

(none)

References

(none)

Red Hat Enterprise Linux Server 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
x86_64
scl-utils-20120927-8.el6.x86_64.rpm	SHA-256: fc2ee9a94c71819319465bf3929a06b5fe1b0d522044418cb423bb0038178334
scl-utils-build-20120927-8.el6.x86_64.rpm	SHA-256: bbbad4006e89bd89ae3cd2667a24635a174b28d628311585b75ee87048e0f33d
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
i386
scl-utils-20120927-8.el6.i686.rpm	SHA-256: c7e1c57be1844326614250054b11ab481527e4fa8636cf66fbb581d3604ccaae
scl-utils-build-20120927-8.el6.i686.rpm	SHA-256: 8038e6cb3ee10f272c2bf48e74e58155e6d3a1f44f84a3cc903daefd4519bf45
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c

Red Hat Enterprise Linux Workstation 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
x86_64
scl-utils-20120927-8.el6.x86_64.rpm	SHA-256: fc2ee9a94c71819319465bf3929a06b5fe1b0d522044418cb423bb0038178334
scl-utils-build-20120927-8.el6.x86_64.rpm	SHA-256: bbbad4006e89bd89ae3cd2667a24635a174b28d628311585b75ee87048e0f33d
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
i386
scl-utils-20120927-8.el6.i686.rpm	SHA-256: c7e1c57be1844326614250054b11ab481527e4fa8636cf66fbb581d3604ccaae
scl-utils-build-20120927-8.el6.i686.rpm	SHA-256: 8038e6cb3ee10f272c2bf48e74e58155e6d3a1f44f84a3cc903daefd4519bf45
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c

Red Hat Enterprise Linux Desktop 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
x86_64
scl-utils-20120927-8.el6.x86_64.rpm	SHA-256: fc2ee9a94c71819319465bf3929a06b5fe1b0d522044418cb423bb0038178334
scl-utils-build-20120927-8.el6.x86_64.rpm	SHA-256: bbbad4006e89bd89ae3cd2667a24635a174b28d628311585b75ee87048e0f33d
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
i386
scl-utils-20120927-8.el6.i686.rpm	SHA-256: c7e1c57be1844326614250054b11ab481527e4fa8636cf66fbb581d3604ccaae
scl-utils-build-20120927-8.el6.i686.rpm	SHA-256: 8038e6cb3ee10f272c2bf48e74e58155e6d3a1f44f84a3cc903daefd4519bf45
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c

Red Hat Enterprise Linux for IBM z Systems 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
s390x
scl-utils-20120927-8.el6.s390x.rpm	SHA-256: f3f38b8ac5e316933f7a247363954b10899b07819d403445f4e0093f45e94e31
scl-utils-build-20120927-8.el6.s390x.rpm	SHA-256: 8751b114878abfe48940f2a33cf17978bd7e6908e1e21c0cf58f90f0f2b3b510
scl-utils-debuginfo-20120927-8.el6.s390x.rpm	SHA-256: 51b52d3c657f1f1799630263686ce830a1a3cd1604b83671208d81d76550506f
scl-utils-debuginfo-20120927-8.el6.s390x.rpm	SHA-256: 51b52d3c657f1f1799630263686ce830a1a3cd1604b83671208d81d76550506f

Red Hat Enterprise Linux for Power, big endian 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
ppc64
scl-utils-20120927-8.el6.ppc64.rpm	SHA-256: 9fb4006e86f707050c7fa1512ff90291c71f0cfdb401c206fdc5ecec5f0a34a7
scl-utils-build-20120927-8.el6.ppc64.rpm	SHA-256: dd85a3e70d514ddfaaa0eb7ee971f3cf30b12da09976c44cd8fd41ea11fbd3f4
scl-utils-debuginfo-20120927-8.el6.ppc64.rpm	SHA-256: 8c407d93ec4580d4b43b0a453a98fe807b983fbc3693756459c1c36b6c038d64
scl-utils-debuginfo-20120927-8.el6.ppc64.rpm	SHA-256: 8c407d93ec4580d4b43b0a453a98fe807b983fbc3693756459c1c36b6c038d64

Red Hat Enterprise Linux for Scientific Computing 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
x86_64
scl-utils-20120927-8.el6.x86_64.rpm	SHA-256: fc2ee9a94c71819319465bf3929a06b5fe1b0d522044418cb423bb0038178334
scl-utils-build-20120927-8.el6.x86_64.rpm	SHA-256: bbbad4006e89bd89ae3cd2667a24635a174b28d628311585b75ee87048e0f33d
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489

Red Hat Enterprise Linux Server from RHUI 6

SRPM
scl-utils-20120927-8.el6.src.rpm	SHA-256: bcafa7970b94b9dd1a922970ac8909e885ce13e901cf893357c909e45504135b
x86_64
scl-utils-20120927-8.el6.x86_64.rpm	SHA-256: fc2ee9a94c71819319465bf3929a06b5fe1b0d522044418cb423bb0038178334
scl-utils-build-20120927-8.el6.x86_64.rpm	SHA-256: bbbad4006e89bd89ae3cd2667a24635a174b28d628311585b75ee87048e0f33d
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
scl-utils-debuginfo-20120927-8.el6.x86_64.rpm	SHA-256: 96fb6676466db183b4936b15fad23cd036f71f7a7beb82c2d6d5314dae549489
i386
scl-utils-20120927-8.el6.i686.rpm	SHA-256: c7e1c57be1844326614250054b11ab481527e4fa8636cf66fbb581d3604ccaae
scl-utils-build-20120927-8.el6.i686.rpm	SHA-256: 8038e6cb3ee10f272c2bf48e74e58155e6d3a1f44f84a3cc903daefd4519bf45
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c
scl-utils-debuginfo-20120927-8.el6.i686.rpm	SHA-256: e2ec164ad0538de1efb5d917355faef024fcb79a02339d31cb88d598330af86c