diff options
Diffstat (limited to 'README')
| -rw-r--r-- | README | 11 |
1 files changed, 7 insertions, 4 deletions
@@ -221,13 +221,16 @@ some point we may start assuming a C89 library as well. Because we assume a freestanding C89 compiler, Gnulib code can include <float.h>, <limits.h>, <stdarg.h>, and <stddef.h> unconditionally. It -can also include hosted headers like <errno.h> that were present in -Unix Version 7 and are thus widely available. Similarly, many modules -include <sys/types.h> even though it's not even in C99; that's OK -since <sys/types.h> has been around nearly forever. <string.h> and +can also assume the existence of <ctime.h>, <errno.h>, <fcntl.h>, +<locale.h>, <signal.h>, <stdio.h>, <stdlib.h>, <string.h>, and +<time.h>. Some of these headers, such as <errno.h>, were present in +Unix Version 7 and are thus widely available. <string.h> and <stdlib.h> were not in Unix Version 7, so they weren't universally available on ancient hosts, but they are both in SunOS 4 (the oldest platform still in relatively-common use) so Gnulib assumes them now. +Similarly, many modules include <sys/types.h> even though it's not +even in C99; that's OK since <sys/types.h> has been around nearly +forever. Even if the include files exist, they may not conform to C89. However, GCC has a "fixincludes" script that attempts to fix most |