[Bug bootstrap/43715] New: configure option --enable-plugin fails on darwin

[Bug bootstrap/43715] New: configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

Currently configure in gcc 4.5.0 doesn't understand darwin's method of loading
shared library modules when the --enable-plugin option is invoked and fails
as...

Links are now set up to build a native compiler for x86_64-apple-darwin10.3.0.
checking for exported symbols...
/sw/src/fink.build/gcc45-4.5.0-0rc1/gcc-4.5-20100408/gcc/configure: line 25167:
-T: command not found
checking for -rdynamic...
/sw/src/fink.build/gcc45-4.5.0-0rc1/gcc-4.5-20100408/gcc/configure: line 25173:
-T: command not found
checking for library containing dlopen... none required
checking for -fPIC -shared... no
configure: error: 
Building GCC with plugin support requires a host that supports
-fPIC, -shared, -ldl and -rdynamic.
make[2]: *** [configure-stage1-gcc] Error 1
make[1]: *** [stage1-bubble] Error 2
make: *** [all] Error 2

This is preventing the dragon-egg developers from testing their code on darwin.


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           Summary: configure option --enable-plugin fails on darwin
           Product: gcc
           Version: 4.5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: howarth at nitro dot med dot uc dot edu
 GCC build triplet: *-*-darwin*
  GCC host triplet: *-*-darwin*
GCC target triplet: *-*-darwin*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

------- Comment #1 from howarth at nitro dot med dot uc dot edu  2010-04-10 14:56 -------
One problems seems to be that configure.ac doesn't force '-Wl,-undefined
-Wl,dynamic_lookup' to be passed on darwin when it is testing -shared.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

------- Comment #2 from howarth at nitro dot med dot uc dot edu  2010-04-11 04:37 -------
Patch posted at http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00516.html.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

------- Comment #3 from howarth at nitro dot med dot uc dot edu  2010-04-11 19:10 -------
Revised patch posted at
http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00533.html. I do see any
combination of options for otool which would give us the required exported
symbol list. In any case, this wouldn't help any other non-darwin targets that
happen to be missing objdump. Using '$gcc_cv_nm -g | grep T' seems most
portable.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

------- Comment #4 from howarth at nitro dot med dot uc dot edu  2010-04-11 19:11 -------
(In reply to comment #3)

s/do/do not/g


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

------- Comment #5 from howarth at nitro dot med dot uc dot edu  2010-04-11 23:07 -------
Hopefully the final revision posted at
http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00539.html.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[howarth at nitro dot med dot uc dot edu]

------- Comment #6 from howarth at nitro dot med dot uc dot edu  2010-04-12 03:31 -------
Third (and hopefully really the final) revision of the patch posted at
http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00545.html.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[mrs at gcc dot gnu dot org]

------- Comment #7 from mrs at gcc dot gnu dot org  2010-04-26 20:34 -------
Subject: Bug 43715

Author: mrs
Date: Mon Apr 26 20:33:49 2010
New Revision: 158747

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158747
Log:
2010-04-21  Jack Howarth <howarth@bromo.med.uc.edu>

        PR 43715
        * testsuite/lib/plugin-support.exp: Use "-undefined
        dynamic_lookup" on darwin.

Modified:
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/testsuite/lib/plugin-support.exp


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[mrs at gcc dot gnu dot org]

------- Comment #8 from mrs at gcc dot gnu dot org  2010-04-26 20:48 -------
Subject: Bug 43715

Author: mrs
Date: Mon Apr 26 20:48:35 2010
New Revision: 158748

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=158748
Log:
2010-04-26  Jack Howarth <howarth@bromo.med.uc.edu>

        PR 43715
        * gcc/configure.ac: Use "$gcc_cv_nm -g" on darwin
        instead of "$gcc_cv_objdump -T".
        Use "-undefined dynamic_lookup" on darwin.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/configure
    trunk/gcc/configure.ac


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[mrs at gcc dot gnu dot org]

------- Comment #9 from mrs at gcc dot gnu dot org  2010-04-26 20:55 -------
Trunk fixed, leaving open for 4.5.1.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] configure option --enable-plugin fails on darwin

[mrs at gcc dot gnu dot org]

-- 

mrs at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.5.1


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug bootstrap/43715] [4.5] configure option --enable-plugin fails on darwin

[fxcoudert at gcc dot gnu dot org]

-- 

fxcoudert at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|0                           |1
   Last reconfirmed|0000-00-00 00:00:00         |2010-05-17 12:00:06
               date|                            |
            Summary|configure option --enable-  |[4.5] configure option --
                   |plugin fails on darwin      |enable-plugin fails on
                   |                            |darwin


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715

[Bug target/43715] configure option --enable-plugin fails on darwin

[rguenth at gcc dot gnu dot org]

-- 

rguenth at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
          Component|bootstrap                   |target
      Known to fail|                            |4.5.0
      Known to work|                            |4.6.0
            Summary|[4.5] configure option --   |configure option --enable-
                   |enable-plugin fails on      |plugin fails on darwin
                   |darwin                      |
   Target Milestone|4.5.1                       |---


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43715