[mesa-users] Compiler error with latest SDK and r7624

[RICHARD H D TOWNSEND]

Hi Warrick —

This is a false positive on the part of the compiler — in fact, there’s nothing wrong with the code. To get things to compile, edit utils/makefile_header and add ‘-Wno-maybe-uninitialized’ to the FCchecks variable.

cheers,

Rich

> On Jun 15, 2016, at 9:38 AM, Warrick Ball <wball at astro.physik.uni-goettingen.de> wrote:
> 
> Hi all,
> 
> I tried upgrading my MESA SDK from the 20150908 release to the 20160129 release and immediately ran into trouble when recompiling MESA r7624.  I don't have a problem installing r8118, so I guess this this might be moot. And I apologize if I've missed that this is a known issue.  It looks like a fairly benign error but I haven't looked into it (since I'm happy to stick to the older SDK).
> 
> The error output is (log of STDOUT is attached as r7624.log):
> 
> ../private/net_burn_const_p.f90:473:0:
> 
>                   rpar(r_burn_const_P_time_eos) + dble(time1 - time0) / clock_rate
> ^
> Error: 'time0' may be used uninitialized in this function [-Werror=maybe-uninitialized]
> f951: all warnings being treated as errors
> make: *** [net_burn_const_p.o] Error 1
> makefile:61: recipe for target 'net_burn_const_p.o' failed
> 
> /home/astro84/wball/work/compile_test/mesa-r7624/net/make
> FAILED
> 
> /home/astro84/wball/work/compile_test/mesa-r7624/net
> ./build_and_test FAILED
> 
> Some system info:
> 
> $ uname -a
> Linux astro84 4.1.15-8-default #1 SMP PREEMPT Wed Jan 20 16:41:00 UTC 2016 (0e3b3ab) x86_64 x86_64 x86_64 GNU/Linux
> 
> $ gfortran -v
> Using built-in specs.
> COLLECT_GCC=/home/astro84/wball/mesa/sdk_20160129/bin/gfortran.exec
> COLLECT_LTO_WRAPPER=/home/astro84/wball/mesa/sdk_20160129/bin/../libexec/gcc/x86_64-pc-linux-gnu/5.3.1/lto-wrapper
> Target: x86_64-pc-linux-gnu
> Configured with: /root/mesasdk-src/gcc/configure CC=gcc --build=x86_64-pc-linux-gnu --prefix=/root/mesasdk --with-gmp=/root/mesasdk --with-mpfr=/root/mesasdk --with-mpc=/root/mesasdk --enable-languages=c,c++,fortran --disable-multilib --disable-nls --disable-libsanitizer --enable-clocale=generic
> Thread model: posix
> gcc version 5.3.1 20160129 (GCC)
> 
> 
> Cheers,
> Warrick
> 
> 
> 
> ------------
> Warrick Ball
> Postdoc, Institut für Astrophysik Göttingen
> wball at astro.physik.uni-goettingen.de
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