| Subject: | Compiler warnings on x86_64 |
| Date: | Mon, 19 Mar 2007 09:21:53 -0700 |
| To: | bug-Data-Alias [...] rt.cpan.org |
| From: | "Chris Weyl" <cweyl [...] alumni.drew.edu> |
Just built Data::Alias 1.03 on x86_64, and found various compiler warnings:
gcc -c -D_REENTRANT -D_GNU_SOURCE -fno-strict-aliasing -pipe
-Wdeclaration-after-statement -I/usr/local/include -D_LARGEFILE_SOURCE
-D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -O2 -g -pipe -Wall
-Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector
--param=ssp-buffer-size=4 -m64 -mtune=generic -DVERSION=\"1.03\"
-DXS_VERSION=\"1.03\" -fPIC
"-I/usr/lib64/perl5/5.8.8/x86_64-linux-thread-multi/CORE" Alias.c
Alias.xs: In function 'DataAlias_pp_splice':
Alias.xs:1074: warning: comparison is always false due to limited
range of data type
Alias.xs:1077: warning: comparison is always false due to limited
range of data type
Alias.xs:1082: warning: comparison is always false due to limited
range of data type
Alias.xs:1083: warning: comparison is always false due to limited
range of data type
Alias.xs: In function 'XS_Data__Alias_deref':
Alias.xs:1836: warning: comparison is always false due to limited
range of data type
Alias.xs: In function 'boot_Data__Alias':
Alias.xs:1777: warning: value computed is not used
Alias.xs:1777: warning: value computed is not used
rm -f blib/arch/auto/Data/Alias/Alias.so
The module builds, etc, but looking at the parts of Alias.xs being
warned, it looks as if this is warning about 32-bit data types. I
haven't had my C hat on in a while :), but it looks to me as if this
may indicate issues with this module under a 64-bit architecture?
For reference, the system is FC6 on x86_64. "This is perl, v5.8.8
built for x86_64-linux-thread-multi"
-Chris
--
Chris Weyl
Ex astris, scientia