Re: floating point exception 8 when running make

[Valery Tolkov]

You are right. My bad. Sorry for the trouble.

The system message is a bit confusing. The exit code 136 could be (and was) 
caused by integer overflow or integer division by zero.

Valeri

> On May 21, 2022, at 1:20 PM, Paul Smith <psmith@gnu.org> wrote:
> 
> On Sat, 2022-05-21 at 12:17 -0700, Valery Tolkov wrote:
>> Exact target file doesn't matter, all files give the same error. If I
>> do a clean build without any existing targets, it works. But second
>> time it fails again.
>> 
>>> ...
>>> Must remake target `bin/dbg/clr/clr.o'.
>>> clang++ --config ./warnings.cfg -g -O0 -DDEBUG -std=c++2a -
>>> fmodules  -I . -I vt -D HAVE_STDDEF_H -D HAVE_STDINT_H -D
>>> HAVE_SYS_TYPES_H -D OSX -D UNIT_TESTS -c clr/clr.cc -o
>>> bin/dbg/clr/clr.o
>>> Putting child 0x600001b94230 (bin/dbg/clr/clr.o) PID 35065 on the
>>> chain.
>>> Live child 0x600001b94230 (bin/dbg/clr/clr.o) PID 35065 
>>> Reaping losing child 0x600001b94230 PID 35065 
>>> make: *** [bin/dbg/clr/clr.o] Floating point exception: 8
>>> Removing child 0x600001b94230 PID 35065 from chain.
> 
> It is not make that's failing, it's your compiler (clang++).  Make is
> just reporting to you that the command it invoked (the compiler) exited
> because it (the compiler) got a floating point exception error.
> 
> You'll have to figure out what's wrong with your compiler, or why your
> code is causing your compiler to exit this way.