Bug 473580 – sci-mathematics/msieve-1.51 - /usr/lib64/libecm.so: undefined reference to `omp_get_thread_num'

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Johannes Bauer 2013-06-17 11:37:05 UTC]

Created attachment 351204 [details, diff]
Fixes described problem

EBuild sci-mathematics/msieve-1.51 fails to build on my system:

/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `omp_get_thread_num'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `GOMP_critical_end'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `GOMP_parallel_end'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `omp_get_num_threads'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `omp_get_thread_limit'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `GOMP_barrier'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `GOMP_parallel_start'
/usr/lib/gcc/x86_64-pc-linux-gnu/4.6.3/../../../../lib64/libecm.so: undefined reference to `GOMP_critical_start'

Tracked the problem down to a missing library in the Makefile and created an appropriate patch (attached). Save the patch as /etc/portage/patches/sci-mathematics/msieve-1.51/lgomp.patch and it'll build. Maybe consider inclusion into the ebuild.

[Comment 1 Patrick Lauer 2013-06-18 03:38:57 UTC]

+  18 Jun 2013; Patrick Lauer <[e-mail]> msieve-1.51.ebuild:                                                                                                                                                                       
+  Small linking fix #473580, works unconditionally                                                                                                                                                                                          
+