dnl Checks for header files.
AC_HEADER_STDC
-AC_CHECK_HEADERS(fcntl.h time.h locale.h fp_class.h malloc.h unistd.h ieeefp.h math.h sys/time.h sys/times.h sys/param.h sys/resource.h float.h)
+AC_HEADER_DIRENT
+AC_CHECK_HEADERS(sys/stat.h sys/types.h fcntl.h time.h locale.h fp_class.h malloc.h unistd.h ieeefp.h math.h sys/time.h sys/times.h sys/param.h sys/resource.h float.h)
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
dnl Does the compiler like -Wall and -pedantic?
if test "x$GCC" = "xyes"; then
oCFLAGS=$CFLAGS
- CFLAGS="$CFLAGS -Wall -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline"
+ CFLAGS="$CFLAGS -Wall -pedantic -Wshadow -Wpointer-arith -Wcast-align -Wmissing-prototypes -Wmissing-declarations -Wnested-externs -Winline -W"
AC_CACHE_CHECK(if we can use GCC-specific compiler options, rd_cv_gcc_opt,
[AC_TRY_COMPILE( , return 0 ,
rd_cv_gcc_opt=yes,
dnl for each function found we get a definition in config.h
dnl of the form HAVE_FUNCTION
-AC_CHECK_FUNCS(tzset setlocale strerror snprintf vsnprintf fpclass class fp_class isnan memmove strchr mktime getrusage gettimeofday)
+AC_CHECK_FUNCS(tzset opendir readdir chdir chroot getuid setlocale strerror snprintf vsnprintf fpclass class fp_class isnan memmove strchr mktime getrusage gettimeofday)
dnl HP-UX 11.00 does not have finite but does have isfinite as a macro
AC_CHECK_FUNCS(fpclassify, ,