Remove compat/dirent*.h and some other compat/*.c files: Modern C-compilers all have those now

6 files changed, 50 insertions, 499 deletions

diff --git a/unix/Makefile.in b/unix/Makefile.in
index 7497135..d2bd30e 100644
--- a/unix/Makefile.in
+++ b/unix/Makefile.in
@@ -1881,27 +1881,12 @@ tclXtTest.o: $(UNIX_DIR)/tclXtTest.c
 # relocatable.
 #--------------------------------------------------------------------------
 
-opendir.o: $(COMPAT_DIR)/opendir.c
-	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/opendir.c
-
 mkstemp.o: $(COMPAT_DIR)/mkstemp.c
 	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/mkstemp.c
 
-memcmp.o: $(COMPAT_DIR)/memcmp.c
-	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/memcmp.c
-
 strncasecmp.o: $(COMPAT_DIR)/strncasecmp.c
 	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/strncasecmp.c
 
-strstr.o: $(COMPAT_DIR)/strstr.c
-	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/strstr.c
-
-strtol.o: $(COMPAT_DIR)/strtol.c
-	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/strtol.c
-
-strtoul.o: $(COMPAT_DIR)/strtoul.c
-	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/strtoul.c
-
 waitpid.o: $(COMPAT_DIR)/waitpid.c
 	$(CC) -c $(STUB_CC_SWITCHES) $(COMPAT_DIR)/waitpid.c
 
diff --git a/unix/configure b/unix/configure
index 7bb92a4..e1623fe 100755
--- a/unix/configure
+++ b/unix/configure
@@ -1604,53 +1604,6 @@ fi
 
 } # ac_fn_c_try_compile
 
-# ac_fn_c_try_link LINENO
-# -----------------------
-# Try to link conftest.$ac_ext, and return whether this succeeded.
-ac_fn_c_try_link ()
-{
-  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
-  if { { ac_try="$ac_link"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
-printf "%s\n" "$ac_try_echo"; } >&5
-  (eval "$ac_link") 2>conftest.err
-  ac_status=$?
-  if test -s conftest.err; then
-    grep -v '^ *+' conftest.err >conftest.er1
-    cat conftest.er1 >&5
-    mv -f conftest.er1 conftest.err
-  fi
-  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest$ac_exeext && {
-	 test "$cross_compiling" = yes ||
-	 test -x conftest$ac_exeext
-       }
-then :
-  ac_retval=0
-else $as_nop
-  printf "%s\n" "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	ac_retval=1
-fi
-  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
-  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
-  # interfere with the next link command; also delete a directory that is
-  # left behind by Apple's compiler.  We do this before executing the actions.
-  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
-  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
-  as_fn_set_status $ac_retval
-
-} # ac_fn_c_try_link
-
 # ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
 # -------------------------------------------------------
 # Tests whether HEADER exists and can be compiled using the include files in
@@ -1722,6 +1675,53 @@ fi
 
 } # ac_fn_c_try_cpp
 
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext conftest.beam conftest$ac_exeext
+  if { { ac_try="$ac_link"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+printf "%s\n" "$ac_try_echo"; } >&5
+  (eval "$ac_link") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest$ac_exeext && {
+	 test "$cross_compiling" = yes ||
+	 test -x conftest$ac_exeext
+       }
+then :
+  ac_retval=0
+else $as_nop
+  printf "%s\n" "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+  # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+  # interfere with the next link command; also delete a directory that is
+  # left behind by Apple's compiler.  We do this before executing the actions.
+  rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
 # ac_fn_c_check_func LINENO FUNC VAR
 # ----------------------------------
 # Tests whether FUNC exists, setting the cache variable VAR accordingly
@@ -4158,102 +4158,6 @@ printf "%s\n" "$ac_cv_path_EGREP" >&6; }
 
 
 
-    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking dirent.h" >&5
-printf %s "checking dirent.h... " >&6; }
-if test ${tcl_cv_dirent_h+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <sys/types.h>
-#include <dirent.h>
-int
-main (void)
-{
-
-#ifndef _POSIX_SOURCE
-#   ifdef __Lynx__
-	/*
-	 * Generate compilation error to make the test fail:  Lynx headers
-	 * are only valid if really in the POSIX environment.
-	 */
-
-	missing_procedure();
-#   endif
-#endif
-DIR *d;
-struct dirent *entryPtr;
-char *p;
-d = opendir("foobar");
-entryPtr = readdir(d);
-p = entryPtr->d_name;
-closedir(d);
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_link "$LINENO"
-then :
-  tcl_cv_dirent_h=yes
-else $as_nop
-  tcl_cv_dirent_h=no
-fi
-rm -f core conftest.err conftest.$ac_objext conftest.beam \
-    conftest$ac_exeext conftest.$ac_ext
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tcl_cv_dirent_h" >&5
-printf "%s\n" "$tcl_cv_dirent_h" >&6; }
-
-    if test $tcl_cv_dirent_h = no; then
-
-printf "%s\n" "#define NO_DIRENT_H 1" >>confdefs.h
-
-    fi
-
-    ac_fn_c_check_header_compile "$LINENO" "stdlib.h" "ac_cv_header_stdlib_h" "$ac_includes_default"
-if test "x$ac_cv_header_stdlib_h" = xyes
-then :
-  tcl_ok=1
-else $as_nop
-  tcl_ok=0
-fi
-
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "strtol" >/dev/null 2>&1
-then :
-
-else $as_nop
-  tcl_ok=0
-fi
-rm -rf conftest*
-
-    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-#include <stdlib.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
-  $EGREP "strtoul" >/dev/null 2>&1
-then :
-
-else $as_nop
-  tcl_ok=0
-fi
-rm -rf conftest*
-
-    if test $tcl_ok = 0; then
-
-printf "%s\n" "#define NO_STDLIB_H 1" >>confdefs.h
-
-    fi
     ac_fn_c_check_header_compile "$LINENO" "string.h" "ac_cv_header_string_h" "$ac_includes_default"
 if test "x$ac_cv_header_string_h" = xyes
 then :
@@ -8120,32 +8024,6 @@ else $as_nop
 esac
 
 fi
-ac_fn_c_check_func "$LINENO" "opendir" "ac_cv_func_opendir"
-if test "x$ac_cv_func_opendir" = xyes
-then :
-  printf "%s\n" "#define HAVE_OPENDIR 1" >>confdefs.h
-
-else $as_nop
-  case " $LIBOBJS " in
-  *" opendir.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS opendir.$ac_objext"
- ;;
-esac
-
-fi
-ac_fn_c_check_func "$LINENO" "strtol" "ac_cv_func_strtol"
-if test "x$ac_cv_func_strtol" = xyes
-then :
-  printf "%s\n" "#define HAVE_STRTOL 1" >>confdefs.h
-
-else $as_nop
-  case " $LIBOBJS " in
-  *" strtol.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS strtol.$ac_objext"
- ;;
-esac
-
-fi
 ac_fn_c_check_func "$LINENO" "waitpid" "ac_cv_func_waitpid"
 if test "x$ac_cv_func_waitpid" = xyes
 then :
@@ -9537,77 +9415,6 @@ fi
 
 
 #--------------------------------------------------------------------
-#       Some system have no memcmp or it does not work with 8 bit data, this
-#       checks it and add memcmp.o to LIBOBJS if needed
-#--------------------------------------------------------------------
-
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking for working memcmp" >&5
-printf %s "checking for working memcmp... " >&6; }
-if test ${ac_cv_func_memcmp_working+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
-then :
-  ac_cv_func_memcmp_working=no
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-$ac_includes_default
-int
-main (void)
-{
-
-  /* Some versions of memcmp are not 8-bit clean.  */
-  char c0 = '\100', c1 = '\200', c2 = '\201';
-  if (memcmp(&c0, &c2, 1) >= 0 || memcmp(&c1, &c2, 1) >= 0)
-    return 1;
-
-  /* The Next x86 OpenStep bug shows up only when comparing 16 bytes
-     or more and with at least one buffer not starting on a 4-byte boundary.
-     William Lewis provided this test program.   */
-  {
-    char foo[21];
-    char bar[21];
-    int i;
-    for (i = 0; i < 4; i++)
-      {
-	char *a = foo + i;
-	char *b = bar + i;
-	strcpy (a, "--------01111111");
-	strcpy (b, "--------10000000");
-	if (memcmp (a, b, 16) >= 0)
-	  return 1;
-      }
-    return 0;
-  }
-
-  ;
-  return 0;
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"
-then :
-  ac_cv_func_memcmp_working=yes
-else $as_nop
-  ac_cv_func_memcmp_working=no
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $ac_cv_func_memcmp_working" >&5
-printf "%s\n" "$ac_cv_func_memcmp_working" >&6; }
-test $ac_cv_func_memcmp_working = no && case " $LIBOBJS " in
-  *" memcmp.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS memcmp.$ac_objext"
- ;;
-esac
-
-
-
-#--------------------------------------------------------------------
 #       Some system like SunOS 4 and other BSD like systems have no memmove
 #       (we assume they have bcopy instead). {The replacement define is in
 #       compat/string.h}
@@ -9629,136 +9436,6 @@ fi
 
 
 #--------------------------------------------------------------------
-#	On some systems strstr is broken: it returns a pointer even if
-#	the original string is empty.
-#--------------------------------------------------------------------
-
-
-    ac_fn_c_check_func "$LINENO" "strstr" "ac_cv_func_strstr"
-if test "x$ac_cv_func_strstr" = xyes
-then :
-  tcl_ok=1
-else $as_nop
-  tcl_ok=0
-fi
-
-    if test "$tcl_ok" = 1; then
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking proper strstr implementation" >&5
-printf %s "checking proper strstr implementation... " >&6; }
-if test ${tcl_cv_strstr_unbroken+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
-then :
-  tcl_cv_strstr_unbroken=unknown
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <stdlib.h>
-#include <string.h>
-int main() {
-    exit(strstr("\0test", "test") ? 1 : 0);
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"
-then :
-  tcl_cv_strstr_unbroken=ok
-else $as_nop
-  tcl_cv_strstr_unbroken=broken
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tcl_cv_strstr_unbroken" >&5
-printf "%s\n" "$tcl_cv_strstr_unbroken" >&6; }
-	if test "$tcl_cv_strstr_unbroken" = "ok"; then
-	    tcl_ok=1
-	else
-	    tcl_ok=0
-	fi
-    fi
-    if test "$tcl_ok" = 0; then
-	case " $LIBOBJS " in
-  *" strstr.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS strstr.$ac_objext"
- ;;
-esac
-
-	USE_COMPAT=1
-    fi
-
-
-#--------------------------------------------------------------------
-#	Check for strtoul function.  This is tricky because under some
-#	versions of AIX strtoul returns an incorrect terminator
-#	pointer for the string "0".
-#--------------------------------------------------------------------
-
-
-    ac_fn_c_check_func "$LINENO" "strtoul" "ac_cv_func_strtoul"
-if test "x$ac_cv_func_strtoul" = xyes
-then :
-  tcl_ok=1
-else $as_nop
-  tcl_ok=0
-fi
-
-    if test "$tcl_ok" = 1; then
-	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking proper strtoul implementation" >&5
-printf %s "checking proper strtoul implementation... " >&6; }
-if test ${tcl_cv_strtoul_unbroken+y}
-then :
-  printf %s "(cached) " >&6
-else $as_nop
-  if test "$cross_compiling" = yes
-then :
-  tcl_cv_strtoul_unbroken=unknown
-else $as_nop
-  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* end confdefs.h.  */
-
-#include <stdlib.h>
-#include <string.h>
-int main() {
-    char *term, *string = "0";
-    exit(strtoul(string,&term,0) != 0 || term != string+1);
-}
-_ACEOF
-if ac_fn_c_try_run "$LINENO"
-then :
-  tcl_cv_strtoul_unbroken=ok
-else $as_nop
-  tcl_cv_strtoul_unbroken=broken
-fi
-rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
-  conftest.$ac_objext conftest.beam conftest.$ac_ext
-fi
-
-fi
-{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $tcl_cv_strtoul_unbroken" >&5
-printf "%s\n" "$tcl_cv_strtoul_unbroken" >&6; }
-	if test "$tcl_cv_strtoul_unbroken" = "ok"; then
-	    tcl_ok=1
-	else
-	    tcl_ok=0
-	fi
-    fi
-    if test "$tcl_ok" = 0; then
-	case " $LIBOBJS " in
-  *" strtoul.$ac_objext "* ) ;;
-  *) LIBOBJS="$LIBOBJS strtoul.$ac_objext"
- ;;
-esac
-
-	USE_COMPAT=1
-    fi
-
-
-#--------------------------------------------------------------------
 #	Check for various typedefs and provide substitutes if
 #	they don't exist.
 #--------------------------------------------------------------------
@@ -9917,24 +9594,6 @@ fi
 
 
 #--------------------------------------------------------------------
-#	If a system doesn't have an opendir function (man, that's old!)
-#	then we have to supply a different version of dirent.h which
-#	is compatible with the substitute version of opendir that's
-#	provided.  This version only works with V7-style directories.
-#--------------------------------------------------------------------
-
-ac_fn_c_check_func "$LINENO" "opendir" "ac_cv_func_opendir"
-if test "x$ac_cv_func_opendir" = xyes
-then :
-
-else $as_nop
-
-printf "%s\n" "#define USE_DIRENT2_H 1" >>confdefs.h
-
-fi
-
-
-#--------------------------------------------------------------------
 #	The check below checks whether <sys/wait.h> defines the type
 #	"union wait" correctly.  It's needed because of weirdness in
 #	HP-UX where "union wait" is defined in both the BSD and SYS-V
diff --git a/unix/configure.ac b/unix/configure.ac
index a695390..653a203 100644
--- a/unix/configure.ac
+++ b/unix/configure.ac
@@ -229,7 +229,7 @@ AC_CHECK_FUNCS(getcwd, , [AC_DEFINE(USEGETWD, 1, [Is getcwd Posix-compliant?])])
 # Nb: if getcwd uses popen and pwd(1) (like SunOS 4) we should really
 # define USEGETWD even if the posix getcwd exists. Add a test ?
 
-AC_REPLACE_FUNCS(mkstemp opendir strtol waitpid)
+AC_REPLACE_FUNCS(mkstemp waitpid)
 AC_CHECK_FUNC(strerror, , [AC_DEFINE(NO_STRERROR, 1, [Do we have strerror()])])
 AC_CHECK_FUNC(getwd, , [AC_DEFINE(NO_GETWD, 1, [Do we have getwd()])])
 AC_CHECK_FUNC(wait3, , [AC_DEFINE(NO_WAIT3, 1, [Do we have wait3()])])
@@ -377,13 +377,6 @@ AC_CHECK_TYPES([blkcnt_t])
 AC_CHECK_FUNC(fstatfs, , [AC_DEFINE(NO_FSTATFS, 1, [Do we have fstatfs()?])])
 
 #--------------------------------------------------------------------
-#       Some system have no memcmp or it does not work with 8 bit data, this
-#       checks it and add memcmp.o to LIBOBJS if needed
-#--------------------------------------------------------------------
-
-AC_FUNC_MEMCMP
-
-#--------------------------------------------------------------------
 #       Some system like SunOS 4 and other BSD like systems have no memmove
 #       (we assume they have bcopy instead). {The replacement define is in
 #       compat/string.h}
@@ -394,26 +387,6 @@ AC_CHECK_FUNC(memmove, , [
     AC_DEFINE(NO_STRING_H, 1, [Do we have <string.h>?]) ])
 
 #--------------------------------------------------------------------
-#	On some systems strstr is broken: it returns a pointer even if
-#	the original string is empty.
-#--------------------------------------------------------------------
-
-SC_TCL_CHECK_BROKEN_FUNC(strstr, [
-    exit(strstr("\0test", "test") ? 1 : 0);
-])
-
-#--------------------------------------------------------------------
-#	Check for strtoul function.  This is tricky because under some
-#	versions of AIX strtoul returns an incorrect terminator
-#	pointer for the string "0".
-#--------------------------------------------------------------------
-
-SC_TCL_CHECK_BROKEN_FUNC(strtoul, [
-    char *term, *string = "0";
-    exit(strtoul(string,&term,0) != 0 || term != string+1);
-])
-
-#--------------------------------------------------------------------
 #	Check for various typedefs and provide substitutes if
 #	they don't exist.
 #--------------------------------------------------------------------
@@ -439,15 +412,6 @@ AC_CHECK_TYPES([intptr_t, uintptr_t],,,[[
 ]])
 
 #--------------------------------------------------------------------
-#	If a system doesn't have an opendir function (man, that's old!)
-#	then we have to supply a different version of dirent.h which
-#	is compatible with the substitute version of opendir that's
-#	provided.  This version only works with V7-style directories.
-#--------------------------------------------------------------------
-
-AC_CHECK_FUNC(opendir, , [AC_DEFINE(USE_DIRENT2_H, 1, [May we include <dirent2.h>?])])
-
-#--------------------------------------------------------------------
 #	The check below checks whether <sys/wait.h> defines the type
 #	"union wait" correctly.  It's needed because of weirdness in
 #	HP-UX where "union wait" is defined in both the BSD and SYS-V
diff --git a/unix/tcl.m4 b/unix/tcl.m4
index 874860b..fc0cfb7 100644
--- a/unix/tcl.m4
+++ b/unix/tcl.m4
@@ -1932,8 +1932,6 @@ dnl # preprocessing tests use only CPPFLAGS.
 # Results:
 #
 #	Defines some of the following vars:
-#		NO_DIRENT_H
-#		NO_STDLIB_H
 #		NO_STRING_H
 #		NO_SYS_WAIT_H
 #		NO_DLFCN_H
@@ -1943,38 +1941,6 @@ dnl # preprocessing tests use only CPPFLAGS.
 #--------------------------------------------------------------------
 
 AC_DEFUN([SC_MISSING_POSIX_HEADERS], [
-    AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
-    AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
-#include <dirent.h>]], [[
-#ifndef _POSIX_SOURCE
-#   ifdef __Lynx__
-	/*
-	 * Generate compilation error to make the test fail:  Lynx headers
-	 * are only valid if really in the POSIX environment.
-	 */
-
-	missing_procedure();
-#   endif
-#endif
-DIR *d;
-struct dirent *entryPtr;
-char *p;
-d = opendir("foobar");
-entryPtr = readdir(d);
-p = entryPtr->d_name;
-closedir(d);
-]])],[tcl_cv_dirent_h=yes],[tcl_cv_dirent_h=no])])
-
-    if test $tcl_cv_dirent_h = no; then
-	AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
-    fi
-
-    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
-    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
-    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
-    if test $tcl_ok = 0; then
-	AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
-    fi
     AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
     AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
     AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)
diff --git a/unix/tclConfig.h.in b/unix/tclConfig.h.in
index 49906d0..cd81d4e 100644
--- a/unix/tclConfig.h.in
+++ b/unix/tclConfig.h.in
@@ -178,9 +178,6 @@
 /* Define to 1 if you have the `open64' function. */
 #undef HAVE_OPEN64
 
-/* Define to 1 if you have the `opendir' function. */
-#undef HAVE_OPENDIR
-
 /* Define to 1 if you have the `OSSpinLockLock' function. */
 #undef HAVE_OSSPINLOCKLOCK
 
@@ -217,9 +214,6 @@
 /* Define to 1 if you have the <string.h> header file. */
 #undef HAVE_STRING_H
 
-/* Define to 1 if you have the `strtol' function. */
-#undef HAVE_STRTOL
-
 /* Define to 1 if the system has the type `struct addrinfo'. */
 #undef HAVE_STRUCT_ADDRINFO
 
@@ -334,9 +328,6 @@
 /* Is Darwin CoreFoundation unavailable for 64-bit? */
 #undef NO_COREFOUNDATION_64
 
-/* Do we have <dirent.h>? */
-#undef NO_DIRENT_H
-
 /* Do we have <dlfcn.h>? */
 #undef NO_DLFCN_H
 
@@ -364,9 +355,6 @@
 /* Do we have realpath() */
 #undef NO_REALPATH
 
-/* Do we have <stdlib.h>? */
-#undef NO_STDLIB_H
-
 /* Do we have strerror() */
 #undef NO_STRERROR
 
@@ -459,9 +447,6 @@
 /* Is getcwd Posix-compliant? */
 #undef USEGETWD
 
-/* May we include <dirent2.h>? */
-#undef USE_DIRENT2_H
-
 /* Are we building with DTrace support? */
 #undef USE_DTRACE
 
diff --git a/unix/tclUnixPort.h b/unix/tclUnixPort.h
index 8ac5060..8f13ecd 100644
--- a/unix/tclUnixPort.h
+++ b/unix/tclUnixPort.h
@@ -7,7 +7,7 @@
  *	file that contains #ifdefs to handle different flavors of UNIX. This
  *	file sets up the union of all UNIX-related things needed by any of the
  *	Tcl core files. This file depends on configuration #defines such as
- *	NO_DIRENT_H that are set up by the "configure" script.
+ *	HAVE_SYS_PARAM_H that are set up by the "configure" script.
  *
  *	Much of the material in this file was originally contributed by Karl
  *	Lehenbauer, Mark Diekhans and Peter da Silva.
@@ -40,15 +40,7 @@
 #   include <sys/param.h>
 #endif
 #include <sys/types.h>
-#ifdef USE_DIRENT2_H
-#   include "../compat/dirent2.h"
-#else
-#ifdef NO_DIRENT_H
-#   include "../compat/dirent.h"
-#else
-#   include <dirent.h>
-#endif
-#endif
+#include <dirent.h>
 
 /*
  *---------------------------------------------------------------------------