SuiteSparse compilation error

[susanchacko]

On a Rocky8 system, gcc 8.5.0 with LAPACK 3.10.1, the compile goes to 100% and then at the end gives:

ranlib libsliplu.a SLIP_gmp.o: In function SLIP_mpfr_get_q': SLIP_gmp.c:(.text+0x28bc): undefined reference to mpfr_get_q' collect2: error: ld returned 1 exit status

[DrTimothyAldenDavis]

SLIP_LU requires MPFR v4.0. You must have an older mpfr library

On Thu, Jun 30, 2022 at 11:17 AM susanchacko @.***> wrote:

On a Rocky8 system, gcc 8.5.0 with LAPACK 3.10.1, the compile goes to 100% and then at the end gives:

ranlib libsliplu.a SLIP_gmp.o: In function SLIP_mpfr_get_q': SLIP_gmp.c:(.text+0x28bc): undefined reference to mpfr_get_q' collect2: error: ld returned 1 exit status

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[susanchacko]

We have MPFR v4.1.6 -- does SuiteSparse require specifically v4.0.*?

[susanchacko]

it appears that the MPFR libraries have an unusual versioning: mpfr-3.1.6-1.el8.x86_64 produces libmpfr.so.4.1.6, and https://www.mpfr.org/mpfr-4.0.2/ produces libmpfr.so.6.0.2. Rebuilding SuiteSparse with mpfr-4.0.2 (libmpfr.so.6.0.2) worked. Thanks for putting me on the right track