The following might be relevant: configure:79124: checking spelling of daylight variable configure:79153: gcc -o conftest.exe -g -ggdb -O0 -pthread -fopenmp -fexceptions conftest.c -lpthread -lm >&5 conftest.c: In function 'main': conftest.c:341:8: error: returning 'int * (*)(void)' from a function with return type 'int' makes integer from pointer without a cast [-Wint-conversion] 341 | return __daylight; | ^~~~~~~~~~ configure:79153: $? = 1 configure: failed program was: <snip> | #include <time.h> | | #ifdef F77_DUMMY_MAIN | | # ifdef __cplusplus | extern "C" | # endif | int F77_DUMMY_MAIN() { return 1; } | | #endif | int | main (void) | { | return __daylight; | ; | return 0; | } |
That is with GCC 14.2.0 if that matters. Markus </time.h></snip>