Hi Wayne, Wayne Rossberg wrote:
> #include <math.h> [...] > test.c:5: warning: incompatible implicit declaration of built-in function > `round' When I check with "man 3 round", I see: Feature Test Macro Requirements for glibc (see feature_test_macros(7)): round(), roundf(), roundl(): _XOPEN_SOURCE >= 600 || _ISOC99_SOURCE || _POSIX_C_SOURCE >= 200112L; or cc -std=c99 Are you compiling with -std=c99? If not, I'd suggest putting "#define _GNU_SOURCE" at the top of the program and seeing if that helps. See feature_test_macros(7) for details. (That said, the warning does seem weird. I'm not sure what would cause it.) Hope that helps, Jonathan -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org