Bug 449886 – cross-avr/gcc-4.7.2 - configure: x86_64-pc-linux-gnu-ld-4.6.3: __gmpfr_cache_const_pi: TLS definition in /usr//lib64/libmpfr.so section .tdata mismatches non-TLS definition in /usr/lib64/libmpfr.so.1 section .data

• Status: RESOLVED WORKSFORME
• Product: Gentoo Linux

[Description David Relson 2013-01-03 00:41:13 UTC]

Configure fails when building gcc-4.7.2 for avr:

configure: error: Building GCC requires GMP 4.2+, MPFR 2.3.1+ and MPC 0.8.0+.

Reproducible: Always

Steps to Reproduce:
1.run command "crossdev -t avr"
2.
3.

[Comment 1 David Relson 2013-01-03 00:43:40 UTC]

Created attachment 334100 [details]
emerge --info

[Comment 2 David Relson 2013-01-03 00:44:14 UTC]

Created attachment 334102 [details]
cross-avr-info.log

[Comment 3 David Relson 2013-01-03 00:44:39 UTC]

Created attachment 334104 [details]
cross-avr-gcc-stage1.log.xz

[Comment 4 David Relson 2013-01-03 00:45:07 UTC]

Created attachment 334106 [details]
gcc-config.logs.tar.xz

[Comment 5 Jeroen Roovers (RETIRED) 2013-01-03 00:56:18 UTC]

/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../x86_64-pc-linux-gnu/bin/ld: __gmpfr_cache_const_pi: TLS definition in /usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libmpfr.so section .tdata mismatches non-TLS definition in /usr/lib64/libmpfr.so.1 section .data

[Comment 6 David Relson 2013-01-03 04:34:40 UTC]

Interesting!

/usr/lib64 contains (from a newly re-emerged mpfr):

     16 Jan  2 23:11 libmpfr.so -> libmpfr.so.4.1.1
 323648 Jan  2 23:11 libmpfr.so.1
     16 Jan  2 23:11 libmpfr.so.4 -> libmpfr.so.4.1.1
 381032 Jan  2 23:10 libmpfr.so.4.1.1

All of the ebuilds for mpfr contain:

   pkg_preinst() {
	preserve_old_lib /usr/$(get_libdir)/libmpfr.so.1
   }

   pkg_postinst() {
	preserve_old_lib_notify /usr/$(get_libdir)/libmpfr.so.1
   }

Evidently gcc requires libmpfr.so.4 and won't build with libmpfr.so.1.

How does one satisfy configure???

Thank you.

[Comment 7 David Relson 2013-01-03 04:52:02 UTC]

Noticing that libmpc had a much older date than libmpfr, I emerged both libmpc and libmpfr.  With the new libraries, gcc-4.7.2 builds successfully.

It seems that building this cross compiler is more difficult than it ought to be.  Unfortunately I can't offer any suggestions on simplifying the process :-<

[Comment 8 SpanKY 2013-01-03 05:05:04 UTC]

run revdep-rebuild and rebuild everything that is linked against the old mpfr