1 dnl On the NeXT, #including <utime.h> doesn't give you a definition for
2 dnl struct utime, unless you #define _POSIX_SOURCE.
4 AC_DEFUN(GUILE_STRUCT_UTIMBUF, [
5 AC_CACHE_CHECK([whether we need POSIX to get struct utimbuf],
6 guile_cv_struct_utimbuf_needs_posix,
15 guile_cv_struct_utimbuf_needs_posix=no,
16 guile_cv_struct_utimbuf_needs_posix=yes)])
17 if test "$guile_cv_struct_utimbuf_needs_posix" = yes; then
18 AC_DEFINE(UTIMBUF_NEEDS_POSIX)
25 dnl Apparently, at CMU they have a weird version of libc.h that is
26 dnl installed in /usr/local/include and conflicts with unistd.h.
27 dnl In these situations, we should not #include libc.h.
28 dnl This test arranges to #define LIBC_H_WITH_UNISTD_H iff libc.h is
29 dnl present on the system, and is safe to #include.
31 AC_DEFUN([GUILE_HEADER_LIBC_WITH_UNISTD],
33 AC_CHECK_HEADERS(libc.h unistd.h)
35 "whether libc.h and unistd.h can be included together",
36 guile_cv_header_libc_with_unistd,
38 if test "$ac_cv_header_libc_h" = "no"; then
39 guile_cv_header_libc_with_unistd="no"
40 elif test "$ac_cv_header_unistd.h" = "no"; then
41 guile_cv_header_libc_with_unistd="yes"
49 [guile_cv_header_libc_with_unistd=yes],
50 [guile_cv_header_libc_with_unistd=no]
55 if test "$guile_cv_header_libc_with_unistd" = yes; then
56 AC_DEFINE(LIBC_H_WITH_UNISTD_H)