[Bug 59959] New: Centos 6.7: dlopen's need for libdl.so.2 (-ldl) not detected by autoconf

[bu...@apache.org]

https://bz.apache.org/bugzilla/show_bug.cgi?id=59959

            Bug ID: 59959
           Summary: Centos 6.7: dlopen's need for libdl.so.2 (-ldl) not
                    detected by autoconf
           Product: Apache httpd-2
           Version: 2.2.31
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Build
          Assignee: bugs@httpd.apache.org
          Reporter: kdevel@vogtner.de

srclib/apr/configure checks for availability of dlopen by issuing

   gcc -o conftest -g -O2 -pthread -DLINUX -D_REENTRANT -D_GNU_SOURCE 
conftest.c -lrt -lcrypt  -lpthread >&5

Using Centos 6.7 this test succeeds because libcrypt.so refers to libfreebl3.so
(Mozilla NSS) which contains a Shared Library entry "libdl.so.2". This causes
httpd to be not dynamically linked to libdl.so.2.

That httpd will not run on other Systems where libcrypt.so is not linked to
NSS, e.g. Debian 8.

Workaround: Set LIBS=-ldl before configure

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[Bug 59959] Centos 6.7: dlopen's need for libdl.so.2 (-ldl) not detected by autoconf

[bu...@apache.org]

https://bz.apache.org/bugzilla/show_bug.cgi?id=59959

William A. Rowe Jr. <wr...@apache.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |MassUpdate
         Resolution|---                         |LATER
             Status|NEW                         |RESOLVED

--- Comment #1 from William A. Rowe Jr. <wr...@apache.org> ---
Please help us to refine our list of open and current defects; this is a mass
update of old and inactive Bugzilla reports which reflect user error, already
resolved defects, and still-existing defects in httpd.

As repeatedly announced, the Apache HTTP Server Project has discontinued all
development and patch review of the 2.2.x series of releases. The final release
2.2.34 was published in July 2017, and no further evaluation of bug reports or
security risks will be considered or published for 2.2.x releases. All reports
older than 2.4.x have been updated to status RESOLVED/LATER; no further action
is expected unless the report still applies to a current version of httpd.

If your report represented a question or confusion about how to use an httpd
feature, an unexpected server behavior, problems building or installing httpd,
or working with an external component (a third party module, browser etc.) we
ask you to start by bringing your question to the User Support and Discussion
mailing list, see [https://httpd.apache.org/lists.html#http-users] for details.
Include a link to this Bugzilla report for completeness with your question.

If your report was clearly a defect in httpd or a feature request, we ask that
you retest using a modern httpd release (2.4.33 or later) released in the past
year. If it can be reproduced, please reopen this bug and change the Version
field above to the httpd version you have reconfirmed with.

Your help in identifying defects or enhancements still applicable to the
current httpd server software release is greatly appreciated.

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