Linux build failed.

[ysuLihua]

./configure
make CFLAGS="-std=c99"

make error

make  all-recursive
make[1]: Entering directory `/root/safeclib'
Making all in src
make[2]: Entering directory `/root/safeclib/src'
 CC       mem/safe_mem_constraint.lo
mem/safe_mem_constraint.c:51:5: error: unknown type name '_Thread_local'
    constraint_handler_t thrd_mem_handler =
    ^
mem/safe_mem_constraint.c:51:26: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'thrd_mem_handler'
    constraint_handler_t thrd_mem_handler =
                         ^
mem/safe_mem_constraint.c: In function 'thrd_set_mem_constraint_handler_s':
mem/safe_mem_constraint.c:124:41: error: 'thrd_mem_handler' undeclared (first use in this function)
    constraint_handler_t prev_handler = thrd_mem_handler;
                                        ^
mem/safe_mem_constraint.c:124:41: note: each undeclared identifier is reported only once for each function it appears in
mem/safe_mem_constraint.c: In function 'invoke_safe_mem_constraint_handler':
mem/safe_mem_constraint.c:153:17: error: 'thrd_mem_handler' undeclared (first use in this function)
    if (NULL != thrd_mem_handler) {
                ^
mem/safe_mem_constraint.c:154:9: error: implicit declaration of function 'thrd_mem_handler' [-Werror=implicit-function-declaration]
        thrd_mem_handler(msg, ptr, error);
        ^
mem/safe_mem_constraint.c:154:9: error: nested extern declaration of 'thrd_mem_handler' [-Werror=nested-externs]
mem/safe_mem_constraint.c:154:9: error: declaration of 'thrd_mem_handler' shadows previous non-variable [-Werror=shadow]
cc1: all warnings being treated as errors
make[2]: *** [mem/safe_mem_constraint.lo] Error 1
make[2]: Leaving directory `/root/safeclib/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/root/safeclib'
make: *** [all] Error 2

[rurban]

Tell me more about your system. Maybe attach your config.status

[ysuLihua]

[rurban]

OK, I'll try to reproduce that in a CentOS 7 docker Reini Urban ysuLihua ***@***.***> schrieb am Mo., 31. März 2025, 16:32:

…

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