+ # used by sleep and shred
+ AC_REQUIRE([gl_CLOCK_TIME])
+ AC_CHECK_FUNCS(gettimeofday)
+ AC_FUNC_GETTIMEOFDAY_CLOBBER
+
+ AC_REQUIRE([AC_FUNC_CLOSEDIR_VOID])
+
+ AC_CHECK_FUNCS( \
+ endgrent \
+ endpwent \
+ fdatasync \
+ ftruncate \
+ gethrtime \
+ hasmntopt \
+ isascii \
+ iswspace \
+ lchown \
+ listmntent \
+ localeconv \
+ memcpy \
+ mempcpy \
+ mkfifo \
+ realpath \
+ sethostname \
+ strchr \
+ strerror \
+ strrchr \
+ sysctl \
+ sysinfo \
+ wcrtomb \
+ tzset \
+ )
+
+ # for test.c
+ AC_CHECK_FUNCS(setreuid setregid)
+
+ AC_FUNC_STRTOD
+ AC_REQUIRE([UTILS_SYS_OPEN_MAX])
+ AC_REQUIRE([GL_FUNC_GETCWD_PATH_MAX])
+ AC_REQUIRE([GL_FUNC_READDIR])
+
+ # See if linking `seq' requires -lm.
+ # It does on nearly every system. The single exception (so far) is
+ # BeOS which has all the math functions in the normal runtime library
+ # and doesn't have a separate math library.
+
+ AC_SUBST(SEQ_LIBM)
+ ac_seq_body='
+ static double x, y;
+ x = floor (x);
+ x = rint (x);
+ x = modf (x, &y);'
+ AC_TRY_LINK([#include <math.h>], $ac_seq_body, ,
+ [ac_seq_save_LIBS="$LIBS"
+ LIBS="$LIBS -lm"
+ AC_TRY_LINK([#include <math.h>], $ac_seq_body, SEQ_LIBM=-lm)
+ LIBS="$ac_seq_save_LIBS"
+ ])
+
+ AM_LANGINFO_CODESET
+ jm_GLIBC21
+ AM_ICONV
+ jm_FUNC_UNLINK_BUSY_TEXT
+
+ # These tests are for df.
+ AC_REQUIRE([gl_FSUSAGE])
+ AC_REQUIRE([gl_MOUNTLIST])
+ if test $gl_cv_list_mounted_fs = yes && test $gl_cv_fs_space = yes; then
+ DF_PROG='df$(EXEEXT)'
+ fi
+ AC_REQUIRE([jm_AC_DOS])
+ AC_REQUIRE([AC_FUNC_CANONICALIZE_FILE_NAME])
+
+ # If any of these functions don't exist (e.g. DJGPP 2.03),
+ # use the corresponding stub.
+ AC_CHECK_FUNC([fchdir], , [AC_LIBOBJ(fchdir-stub)])
+ AC_CHECK_FUNC([fchown], , [AC_LIBOBJ(fchown-stub)])
+])
+
+# These tests must be run before any use of AC_CHECK_TYPE,
+# because that macro compiles code that tests e.g., HAVE_UNISTD_H.
+# See the definition of ac_includes_default in `configure'.
+AC_DEFUN([jm_CHECK_ALL_HEADERS],
+[
+ AC_CHECK_HEADERS( \
+ errno.h \
+ fcntl.h \
+ float.h \
+ hurd.h \
+ limits.h \
+ memory.h \
+ mntent.h \
+ mnttab.h \
+ netdb.h \
+ paths.h \
+ stdlib.h \
+ stddef.h \
+ stdint.h \
+ string.h \
+ sys/filsys.h \
+ sys/fs/s5param.h \
+ sys/fs_types.h \
+ sys/fstyp.h \
+ sys/ioctl.h \
+ sys/mntent.h \
+ sys/mount.h \
+ sys/param.h \
+ sys/resource.h \
+ sys/socket.h \
+ sys/statfs.h \
+ sys/statvfs.h \
+ sys/sysctl.h \
+ sys/systeminfo.h \
+ sys/time.h \
+ sys/timeb.h \
+ sys/vfs.h \
+ sys/wait.h \
+ syslog.h \
+ termios.h \
+ unistd.h \
+ utime.h \
+ values.h \
+ )