Bug 282174 – dev-libs/ntl-5.5.1 uses gf2x symbols but doesnt link against it in libntl.so

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Thomas Kahle (RETIRED) 2009-08-21 07:47:18 UTC]

If the gf2x use flag is set ntl links against dev-libs/gf2x. 

The final library libntl.so. uses gf2x symbols but does not link against it. 

Here is a sample file:
$cat ntlcheck.c
#include <NTL/tools.h>
int main () { _ntl_GetTime(); }

$ g++ ntlcheck.c -lntl                                                        09:42:01 Fri,21.Aug
/usr/lib/gcc/i686-pc-linux-gnu/4.3.2/../../../libntl.so: undefined reference to `gf2x_mul'
collect2: ld returned 1 exit status

$g++ ntlcheck.c -lntl -lgf2x
works, but -lg2x should not be necessary. 

In particular 
$g++ -Wl,--as-needed ntlcheck.c -lntl -lgf2x 
will fail !

Reproducible: Always

[Comment 1 Sébastien Fabbro (RETIRED) 2009-08-26 18:36:00 UTC]

Should be fixed in ntl-5.5.2. Re-open if not.