| Ticket UUID: | 1230558 | ||
| Title: | confusing 64bit warning | ||
| Type: | Bug | Created on: | 2005-06-30 19:24:58 |
| Submitter: | wart | Assigned to: | hobbs |
| Subsystem: | 53. Configuration and Build Tools | Severity: | |
| Priority: | 5 Medium | Last modified: | 2006-11-26 13:07:01 |
| Status: | Closed | Closed by: | das |
| Resolution: | Fixed | Closed on: | 2006-11-26 06:07:01 |
| Version: | obsolete: 8.4.11 | ||
| Description: | ||||
When building tcl 8.4.11 on x86_64 Fedore Core {3,4},
configure claims that it doesn't know how to do 64bit:
# ./configure --enable-64bit
[...]
checking if 64bit support is requested... yes
checking if 64bit Sparc VIS support is requested... no
checking system version (for dynamic loading)...
Linux-2.6.11-1.1369_FC4smp
checking for dlopen in -ldl... yes
checking for ar... ar
configure: warning: 64bit support being disabled --
don't know magic for this platform
[...]
And yet, 'make' proceeds with no problems other than a
few warnings about casting pointers to integers.
'file' claims that the resulting executable is 64-bit:
# file ./tclsh
tclsh: ELF 64-bit LSB executable, AMD x86-64, version 1
(SYSV), for GNU/Linux 2.4.0, dynamically linked (uses
shared libs), not stripped
I get the same results if I leave off the
--enable-64bit. My questions about this are: Is the
--enable-64bit switch necessary on FC{3,4}? Can we
somehow remove the '64bit support being disabled'
warning from configure?
| ||||
| User Comments: | ||||
mic42 added on 2006-08-03 06:38:18:
Logged In: YES user_id=302287 Short answer: No, you don't need the --enable-64bit switch on AMD x86_64 linux, as your gcc creates 64-bit executables by default, its just for those platforms where the OS is 64-bit, but executables are usually built as 32-bit versions, to force a 64-bit version of Tcl. The warning could be fixed/removed by some changes to the tcl.m4 file. das added on 2006-11-26 13:07:01:
Logged In: YES user_id=90580 Originator: NO fixed by patch 1597389 | ||||