Warning when building ./Modules/timemodule.c on i686 with 64-bit time #104040
Description
Building CPython generates the following warning:
gcc -fno-strict-overflow -Wsign-compare -g -Og -Wall -std=c11 -Wextra \
-Wno-unused-parameter -Wno-missing-field-initializers \
-Werror=implicit-function-declaration -fvisibility=hidden \
-I./Include/internal -I. -I./Include \
-D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64 \
-DPy_BUILD_CORE_BUILTIN \
-c ./Modules/timemodule.c -o Modules/timemodule.o
./Modules/timemodule.c: In function 'check_ticks_per_second':
./Modules/timemodule.c:73:36: warning: comparison is always false due to limited
range of data type [-Wtype-limits]
73 | if (tps >= 0 && (_PyTime_t)tps > _PyTime_MAX / SEC_TO_NS) {
|
#Environment
- CPython versions tested on:
Python 3.12.0a6+ - Operating system and architecture:
Linux lfs.ijtaba 6.1.11 #1 SMP PREEMPT_DYNAMIC Sun Apr 30 12:53:36 PKT 2023 i686 GNU/Linux
Not able to replicate on a 64 bit system without the following compiler options:
-D_TIME_BITS=64 -D_FILE_OFFSET_BITS=64
Found whilst analysing #101732
I appreciate that building 32-bit python using gcc on Linux is not currently a supported platform combination, I would still like to review the code behind this...
configure: WARNING: i686-pc-linux-gnu/gcc is not supported