[Mesa-users] STELLA compilation failed on MacOS Tahoe (M3)

[Amar Aryan]

Dear Philip,

Thank you for your suggestion. Yes, I had tried this hack and the
compilation proceeded successfully, but while writing the results, it
displayed:

stella extras

gfortran -Wno-uninitialized -fno-range-check -fmax-errors=7
-fdiagnostics-color  -fprotect-parens -fno-sign-zero -fbacktrace -ggdb
-finit-real=snan -fopenmp   -I../../include -Wunused-value -W
-Wno-compare-reals -Wno-unused-parameter -Wno-function-elimination
-Waliasing -fimplicit-none -fbounds-check -Wuninitialized -Warray-bounds
-O0 -ftree-vectorize -ggdb -c -ffree-form -ffree-line-length-none -x
f95-cpp-input stella_extras.f90

*stella_extras.f90:391:27:*


  391 |          n_Fe = density*avo*fe(k)/A_Fe56

      |                           *1*

*Error:* Symbol '*avo*' at *(1)* has no IMPLICIT type

*stella_extras.f90:416:38:*


  416 |          tau_sob = pi*qe*qe/(me*clight)*n_Fe*eta*f*time_sec*lambda0

      |                                      *1*

*Error:* Symbol '*clight*' at *(1)* has no IMPLICIT type; did you mean '
*logt*'?

*stella_extras.f90:351:37:*


  351 |                L_div_Lsun = Lbol/Lsun

      |                                     *1*

*Error:* Symbol '*lsun*' at *(1)* has no IMPLICIT type; did you mean '*lum*
'?

*stella_extras.f90:416:31:*


  416 |          tau_sob = pi*qe*qe/(me*clight)*n_Fe*eta*f*time_sec*lambda0

      |                               *1*

*Error:* Symbol '*me*' at *(1)* has no IMPLICIT type; did you mean '*fe*'?

*stella_extras.f90:354:54:*


  354 |                log_g =
log10(standard_cgrav*mphot*Msun/(rphot*rphot))

      |                                                      *1*

*Error:* Symbol '*msun*' at *(1)* has no IMPLICIT type

*stella_extras.f90:416:21:*


  416 |          tau_sob = pi*qe*qe/(me*clight)*n_Fe*eta*f*time_sec*lambda0

      |                     *1*

*Error:* Symbol '*pi*' at *(1)* has no IMPLICIT type; did you mean '*i*'?

*stella_extras.f90:416:24:*


  416 |          tau_sob = pi*qe*qe/(me*clight)*n_Fe*eta*f*time_sec*lambda0

      |                        *1*

*Error:* Symbol '*qe*' at *(1)* has no IMPLICIT type; did you mean '*fe*'?

compilation terminated due to -fmax-errors=7.

make: *** [stella_extras.o] Error 1


Please provide your insights into this (some modules missing?).

With best regards,
Amar

On Thu, Feb 12, 2026 at 3:00 AM Philip Mocz <pmocz at flatironinstitute.org>
wrote:

> Great catch, Amar! Looks like this was not caught in testing after a
> recent refactor.
>
> rename the file:
>
> stella/src/cp2k/kinds.f90
>
> to
>
> stella/src/cp2k/kinds.f
>
> and I think it should work. Let me know if it doesn't
>
> On Wed, Feb 11, 2026 at 9:09 AM Amar Aryan via Mesa-users <
> mesa-users at lists.mesastar.org> wrote:
>
>> Dear Mesa users,
>>
>> I recently installed mesa-25.12.1 with MESASDK version
>> of aarch64-macos-25.12.1 on my Mac with MacOS Tahoe (M3). The required test
>> suites for my project seem to be working fine, but when I try running
>> stella by "./rn" command, the compilation stops displaying:
>>
>> gfortran  -o ../eve/run/eve2.exe evesn2.o sahaz.o sahaandd.o opazr.o
>> stradio.o azdat.o length.o
>>
>> make: *** No rule to make target `kinds.F', needed by `kinds.o'.  Stop.
>>
>>
>> I highly appreciate any possible suggestions.
>>
>> With best regards,
>> Amar
>> _______________________________________________
>> mesa-users at lists.mesastar.org
>>
>> https://urldefense.com/v3/__https://lists.mesastar.org/mailman/listinfo/mesa-users__;!!DSb-azq1wVFtOg!R8G6Tnzw2Yz7Au9liNUvMg5kaqPH79nMuyK5Gi1qKKkayaAiMXaiDARmp_PMHQWJBwTdP3t_fbA-vipre0_mwSq4l7TpzoaT$
>>
>>
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