+ # used by sleep and shred
+ AC_REQUIRE([gl_CLOCK_TIME])
+ AC_CHECK_FUNCS_ONCE(gettimeofday)
+ AC_FUNC_GETTIMEOFDAY_CLOBBER
+ # used by shred
+ AC_CHECK_FUNCS_ONCE(directio)
+
+ AC_REQUIRE([AC_FUNC_CLOSEDIR_VOID])
+
+ AC_CHECK_FUNCS_ONCE( \
+ endgrent \
+ endpwent \
+ ftruncate \
+ gethrtime \
+ hasmntopt \
+ isascii \
+ iswspace \
+ lchown \
+ listmntent \
+ localeconv \
+ memcpy \
+ mempcpy \
+ mkfifo \
+ mbrlen \
+ realpath \
+ sethostname \
+ strchr \
+ strerror \
+ strrchr \
+ sysctl \
+ sysinfo \
+ tcgetpgrp \
+ wcrtomb \
+ tzset \
+ )
+
+ AC_FUNC_STRTOD
+
+ AC_REQUIRE([cu_PREREQ_STAT_PROG])
+ AC_REQUIRE([GL_FUNC_GETCWD_PATH_MAX])
+ AC_REQUIRE([GL_FUNC_READDIR])
+
+ # for dd.c and shred.c
+ fetish_saved_libs=$LIBS
+ AC_SEARCH_LIBS([fdatasync], [rt posix4],
+ [test "$ac_cv_search_fdatasync" = "none required" ||
+ LIB_FDATASYNC=$ac_cv_search_fdatasync])
+ AC_SUBST([LIB_FDATASYNC])
+ AC_CHECK_FUNCS(fdatasync)
+ LIBS=$fetish_saved_libs
+
+ # 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
+ gl_GLIBC21
+ AM_ICONV
+ gl_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)'