dnl Process this file with autoconf to produce a configure script.
AC_INIT(tcl.h)
AC_PROG_INSTALL
AC_PROG_RANLIB
echo checking for pid_t in sys/types.h
AC_HEADER_EGREP(pid_t, sys/types.h, AC_DEFINE(TCL_PID_T, 1), AC_DEFINE(TCL_PID_T, 0))
AC_STDC_HEADERS
AC_UNISTD_H
AC_HEADER_CHECK(dirent.h, AC_DEFINE(HAVE_DIRENT))


AC_REPLACE_FUNCS(opendir strerror strstr strtod strtol)
AC_FUNC_CHECK(getwd,AC_DEFINE(TCL_GETWD,1),AC_DEFINE(TCL_GETWD,0))
AC_FUNC_CHECK(gettimeofday,AC_DEFINE(TCL_GETTOD,1),AC_DEFINE(TCL_GETTOD,0))

AC_TEST_PROGRAM([ /* this program taken from compat/teststrtoul.c */
extern int strtoul();
int main()
{
    char *string = "0";
    char *term;
    int value;
    value = strtoul(string, &term, 0);
    if ((value != 0) || (term != (string+1))) {
        exit(1);
    }
    exit(0);
}], , [LIBOBJS="$LIBOBJS strtoul.o"])

AC_COMPILE_CHECK([union wait], [#include <sys/types.h> 
#include <sys/wait.h>], [ /* this program taken from compat/testwait.c */
/* This code is very tricky, mostly because of weirdness in HP-UX
 * where "union wait" is defined in both the BSD and SYS-V
 * environments.  Supposedly the WIFEXITED business will do the
 * right thing... */
union wait x;
WIFEXITED(x);               /* Generates compiler error if WIFEXITED
                                 * uses an int. */
return 0;
], AC_DEFINE(TCL_UNION_WAIT,1), AC_DEFINE(TCL_UNION_WAIT,0))

AC_CHAR_UNSIGNED
AC_CONST
AC_OUTPUT(Makefile)