[uclibc-ng-devel] uClibc-ng - small C library for embedded systems branch master updated. v1.0.18-16-ga6cdfdf

diff --git a/Makefile.in b/Makefile.in
index c289ed3..877a0b6 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -363,7 +363,31 @@  else
 	$(Q)cd $(PREFIX)$(DEVEL_PREFIX)include && $(RM) -f wchar-stub.h
 endif
 
-EMPTY_LIB_NAMES = m crypt nsl resolv util dl rt pthread intl
+EMPTY_LIB_NAMES = dl
+ifeq ($(DO_C99_MATH),y)
+EMPTY_LIB_NAMES += m
+endif
+ifeq ($(UCLIBC_HAS_THREADS),y)
+EMPTY_LIB_NAMES += pthread
+endif
+ifeq ($(UCLIBC_HAS_REALTIME),y)
+EMPTY_LIB_NAMES += rt
+endif
+ifeq ($(UCLIBC_HAS_CRYPT),y)
+EMPTY_LIB_NAMES += crypt
+endif
+ifeq ($(UCLIBC_HAS_LIBUTIL),y)
+EMPTY_LIB_NAMES += util
+endif
+ifeq ($(UCLIBC_HAS_LIBRESOLV_STUB),y)
+EMPTY_LIB_NAMES += resolv
+endif
+ifeq ($(UCLIBC_HAS_LIBNSL_STUB),y)
+EMPTY_LIB_NAMES += nsl
+endif
+ifeq ($(UCLIBC_HAS_GETTEXT_AWARENESS),y)
+EMPTY_LIB_NAMES += intl
+endif
 EMPTY_LIBS = $(EMPTY_LIB_NAMES:%=lib/lib%.a)
 
 $(EMPTY_LIBS):
diff --git a/libc/Makefile.in b/libc/Makefile.in
index 85986a7..714a66e 100644
--- a/libc/Makefile.in
+++ b/libc/Makefile.in
@@ -42,9 +42,9 @@  else
 libc-a-y = $(libc-y) $(libc-static-y)
 endif
 
-libc-a-y += $(libnsl-a-y)
-libc-a-y += $(libresolv-a-y)
-libc-a-y += $(libm-a-y)
+libc-a-$(DO_C99_MATH) += $(libm-a-y)
+libc-a-$(UCLIBC_HAS_LIBNSL_STUB) += $(libnsl-a-y)
+libc-a-$(UCLIBC_HAS_LIBRESOLV_STUB) += $(libresolv-a-y)
 libc-a-$(UCLIBC_HAS_LIBUTIL) += $(libutil-a-y)
 libc-a-$(UCLIBC_HAS_CRYPT) += $(libcrypt-a-y)
 libc-a-$(UCLIBC_HAS_ARGP) += $(libuargp-a-y)
@@ -55,10 +55,10 @@  libc-a-$(UCLIBC_HAS_BACKTRACE) += $(libubacktrace-a-y)
 
 libc-so-y = $(libc-y:.o=.os) $(libc-shared-y)
 
-libc-so-y += $(libnsl-so-y)
-libc-so-y += $(libresolv-so-y)
 libc-so-y += $(libdl-so-y)
-libc-so-y += $(libm-so-y)
+libc-so-$(DO_C99_MATH) += $(libm-so-y)
+libc-so-$(UCLIBC_HAS_LIBNSL_STUB) += $(libnsl-so-y)
+libc-so-$(UCLIBC_HAS_LIBRESOLV_STUB) += $(libresolv-so-y)
 libc-so-$(UCLIBC_HAS_LIBUTIL) += $(libutil-so-y)
 libc-so-$(UCLIBC_HAS_CRYPT) += $(libcrypt-so-y)
 libc-so-$(UCLIBC_HAS_ARGP) += $(libuargp-so-y)
diff --git a/libc/misc/ftw/ftw.c b/libc/misc/ftw/ftw.c
index 05ea0fa..c6241ed 100644
--- a/libc/misc/ftw/ftw.c
+++ b/libc/misc/ftw/ftw.c
@@ -558,19 +558,14 @@  fail:
   --data->ftw.level;
   data->ftw.base = previous_base;
 
-  /* Finally, if we process depth-first report the directory.  */
-  if (result == 0 && (data->flags & FTW_DEPTH))
-    result = (*data->func) (data->dirbuf, st, FTW_DP, &data->ftw);
-
-  if (old_dir
-      && (data->flags & FTW_CHDIR)
+  if ((data->flags & FTW_CHDIR)
       && (result == 0
 	  || ((data->flags & FTW_ACTIONRETVAL)
 	      && (result != -1 && result != FTW_STOP))))
     {
       /* Change back to the parent directory.  */
       int done = 0;
-      if (old_dir->stream != NULL)
+      if (old_dir && old_dir->stream != NULL)
 	if (__fchdir (dirfd (old_dir->stream)) == 0)
 	  done = 1;
 
@@ -587,6 +582,10 @@  fail:
 	}
     }
 
+  /* Finally, if we process depth-first report the directory.  */
+  if (result == 0 && (data->flags & FTW_DEPTH))
+    result = (*data->func) (data->dirbuf, st, FTW_DP, &data->ftw);
+
   return result;
 }
 
diff --git a/libc/sysdeps/linux/arc/crt1.S b/libc/sysdeps/linux/arc/crt1.S
index ae863e7..70a06e0 100644
--- a/libc/sysdeps/linux/arc/crt1.S
+++ b/libc/sysdeps/linux/arc/crt1.S
@@ -72,5 +72,9 @@  __start:
 0:	.asciz "GNU"		/* Vendor name */
 1:	.align 4
 2:	.long 0			/* Note data: Linux executable */
-	.long 3,9,0		/* Earliest compatible kernel */
+#if (__GNUC__ > 4)
+	.long 4,8,0		/* Earliest compatible kernel for ABI v4 */
+#else
+	.long 3,9,0		/* Earliest compatible kernel for ABI v3 */
+#endif
 3:	.align 4		/* Pad out section */
diff --git a/test/misc/tst-nftw.c b/test/misc/tst-nftw.c
new file mode 100644
index 0000000..76d11eb
--- /dev/null
+++ b/test/misc/tst-nftw.c
@@ -0,0 +1,57 @@ 
+#define _XOPEN_SOURCE 500 
+#define _GNU_SOURCE
+#include <ftw.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+int result = 0;
+
+static int process_one_entry(const char *fpath, const struct stat *sb,
+                             int typeflag, struct FTW *ftwbuf)
+{
+    
+    struct stat buf;
+    const char *rel_path = fpath+ftwbuf->base;
+
+    printf("Processing %s in working dir %s\n",
+	   rel_path, get_current_dir_name());
+    if (stat(rel_path, &buf) < 0) {
+	perror("Oops...relative path does not exist in current directory");
+	result = 1;
+    }
+}
+
+static int
+do_test(void)
+{
+    char *path = "/tmp/stest_dir";
+    char *subpath = "/tmp/stest_dir/d1";
+    char *filepath = "/tmp/stest_dir/f1";
+    char *filesubpath = "/tmp/stest_dir/d1/f2";
+    
+    if ((mkdir(path, 0700)) < 0)
+	perror("Creating path");
+    if ((mkdir(subpath, 0700)) < 0)
+	perror("Creating subpath");
+    if ((open(filepath, O_CREAT)) < 0)
+	perror("Opening filepath");
+    if ((open(filesubpath, O_CREAT)) < 0)
+	perror("Opening filesubpath");
+
+    if (nftw(path, process_one_entry, 100, (FTW_CHDIR|FTW_DEPTH|FTW_PHYS)) < 0)
+        perror("ntfw");
+
+    unlink(filesubpath);
+    unlink(filepath);
+    rmdir(subpath);
+    rmdir(path);
+
+    return result;
+}
+
+#define TIMEOUT 5
+#define TEST_FUNCTION do_test ()
+#include "../test-skeleton.c"