diff --git a/programs/develop/ktcc/trunk/bin/lib/libck.a b/programs/develop/ktcc/trunk/bin/lib/libck.a
index 910d97397b..cd0266c337 100644
Binary files a/programs/develop/ktcc/trunk/bin/lib/libck.a and b/programs/develop/ktcc/trunk/bin/lib/libck.a differ
diff --git a/programs/develop/ktcc/trunk/libc/build.bat b/programs/develop/ktcc/trunk/libc/build.bat
index 265d5a2259..7f2e9e1967 100644
--- a/programs/develop/ktcc/trunk/libc/build.bat
+++ b/programs/develop/ktcc/trunk/libc/build.bat
@@ -10,7 +10,7 @@ set CC=kos32-tcc
set CFLAGS=-c -nostdinc -DGNUC -I"%cd%\%INCLUDE%" -Wall
set AR=kos32-ar
set ASM=fasm
-set dirs=stdio memory kolibrisys string stdlib math dlfcn
+set dirs=stdio memory kolibrisys string stdlib math dlfcn libgen
rem #### END OF CONFIG SECTION ####
set objs=
diff --git a/programs/develop/ktcc/trunk/libc/include/libgen.h b/programs/develop/ktcc/trunk/libc/include/libgen.h
new file mode 100644
index 0000000000..af17a911f5
--- /dev/null
+++ b/programs/develop/ktcc/trunk/libc/include/libgen.h
@@ -0,0 +1,7 @@
+#ifndef __KTCC_LIBGEN_H__
+#define __KTCC_LIBGEN_H__
+
+char *basename(char *path);
+char *dirname(char *path);
+
+#endif // __KTCC_LIBGEN_H__
diff --git a/programs/develop/ktcc/trunk/libc/include/string.h b/programs/develop/ktcc/trunk/libc/include/string.h
index f69a8036f7..bd2ad06211 100644
--- a/programs/develop/ktcc/trunk/libc/include/string.h
+++ b/programs/develop/ktcc/trunk/libc/include/string.h
@@ -4,6 +4,7 @@ typedef unsigned int size_t;
extern void* memchr(const void*,int,size_t);
+extern void* memrchr(const void*,int,size_t);
extern int memcmp(const void*,const void*,size_t);
extern void* memcpy(void*,const void*,size_t);
extern void* memmove(void*,const void*,size_t);
diff --git a/programs/develop/ktcc/trunk/libc/libgen/basename.c b/programs/develop/ktcc/trunk/libc/libgen/basename.c
new file mode 100644
index 0000000000..03f9813f33
--- /dev/null
+++ b/programs/develop/ktcc/trunk/libc/libgen/basename.c
@@ -0,0 +1,23 @@
+/* Return the name-within-directory of a file name.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ . */
+
+#include
+
+char *
+basename (const char *filename)
+{
+ char *p = strrchr (filename, '/');
+ return p ? p + 1 : (char *) filename;
+}
diff --git a/programs/develop/ktcc/trunk/libc/libgen/dirname.c b/programs/develop/ktcc/trunk/libc/libgen/dirname.c
new file mode 100644
index 0000000000..b889f7d0c6
--- /dev/null
+++ b/programs/develop/ktcc/trunk/libc/libgen/dirname.c
@@ -0,0 +1,67 @@
+/* dirname - return directory part of PATH.
+ Copyright (C) 1996-2019 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Ulrich Drepper , 1996.
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ . */
+
+#include
+#include
+
+char *
+dirname (char *path)
+{
+ static const char dot[] = ".";
+ char *last_slash;
+ /* Find last '/'. */
+ last_slash = path != NULL ? strrchr (path, '/') : NULL;
+ if (last_slash != NULL && last_slash != path && last_slash[1] == '\0')
+ {
+ /* Determine whether all remaining characters are slashes. */
+ char *runp;
+ for (runp = last_slash; runp != path; --runp)
+ if (runp[-1] != '/')
+ break;
+ /* The '/' is the last character, we have to look further. */
+ if (runp != path)
+ last_slash = memrchr (path, '/', runp - path);
+ }
+ if (last_slash != NULL)
+ {
+ /* Determine whether all remaining characters are slashes. */
+ char *runp;
+ for (runp = last_slash; runp != path; --runp)
+ if (runp[-1] != '/')
+ break;
+ /* Terminate the path. */
+ if (runp == path)
+ {
+ /* The last slash is the first character in the string. We have to
+ return "/". As a special case we have to return "//" if there
+ are exactly two slashes at the beginning of the string. See
+ XBD 4.10 Path Name Resolution for more information. */
+ if (last_slash == path + 1)
+ ++last_slash;
+ else
+ last_slash = path + 1;
+ }
+ else
+ last_slash = runp;
+ last_slash[0] = '\0';
+ }
+ else
+ /* This assignment is ill-designed but the XPG specs require to
+ return a string containing "." in any case no directory part is
+ found and so a static and constant string is required. */
+ path = (char *) dot;
+ return path;
+}
\ No newline at end of file
diff --git a/programs/develop/ktcc/trunk/libc/string/memrchr.c b/programs/develop/ktcc/trunk/libc/string/memrchr.c
new file mode 100644
index 0000000000..742693a1e5
--- /dev/null
+++ b/programs/develop/ktcc/trunk/libc/string/memrchr.c
@@ -0,0 +1,12 @@
+/* memrchr.c from musl
+ */
+
+#include
+
+void *memrchr(const void *m, int c, size_t n)
+{
+ const unsigned char *s = m;
+ c = (unsigned char)c;
+ while (n--) if (s[n]==c) return (void *)(s+n);
+ return 0;
+}