diff --git a/ap/libc/glibc/glibc-2.23/config.h.in b/ap/libc/glibc/glibc-2.23/config.h.in
new file mode 100644
index 0000000..ec9c8bc
--- /dev/null
+++ b/ap/libc/glibc/glibc-2.23/config.h.in
@@ -0,0 +1,234 @@
+#if !defined IS_IN_build && !defined __ASSEMBLER__ && !defined _ISOMAC \
+    && !defined __OPTIMIZE__
+# error "glibc cannot be compiled without optimization"
+#endif
+
+/* Another evil option when it comes to compiling the C library is
+   --ffast-math since it alters the ABI.  */
+#if defined __FAST_MATH__ && !defined TEST_FAST_MATH
+# error "glibc must not be compiled with -ffast-math"
+#endif
+
+/* Define if building with SELinux support.  Set by --with-selinux.  */
+#undef	HAVE_SELINUX
+
+/* Defined if building with SELinux support & audit libs are detected. */
+#undef	HAVE_LIBAUDIT
+
+/* Defined if building with SELinux support & libcap libs are detected.  */
+#undef  HAVE_LIBCAP
+
+/* Define to the assembler line separator character for multiple
+   assembler instructions per line.  Default is `;'  */
+#undef ASM_LINE_SEP
+
+/* Define if __attribute__((section("foo"))) puts quotes around foo.  */
+#undef  HAVE_SECTION_QUOTES
+
+/* Define if the assembler supports the `.set' directive.  */
+#undef	HAVE_ASM_SET_DIRECTIVE
+
+/* On powerpc64, use overlapping .opd entries.  */
+#undef  USE_PPC64_OVERLAPPING_OPD
+
+/* Define if _Unwind_Find_FDE should be exported from glibc.  */
+#undef  EXPORT_UNWIND_FIND_FDE
+
+/* Define if static NSS modules are wanted.  */
+#undef	DO_STATIC_NSS
+
+/* Define if the compiler supports __builtin_memset.  */
+#undef	HAVE_BUILTIN_MEMSET
+
+/* Define if compiler accepts -ftree-loop-distribute-patterns.  */
+#undef  HAVE_CC_INHIBIT_LOOP_TO_LIBCALL
+
+/* Define if the regparm attribute shall be used for local functions
+   (gcc on ix86 only).  */
+#undef	USE_REGPARMS
+
+/* Defined on SPARC if GCC emits GOTDATA relocations.  */
+#undef  HAVE_GCC_GOTDATA
+
+/* Define on SPARC if AS supports VIS3 instructions.  */
+#undef  HAVE_AS_VIS3_SUPPORT
+
+/* Define if the linker supports the -z combreloc option.  */
+#undef	HAVE_Z_COMBRELOC
+
+/* Define if _rtld_local structure should be forced into .sdata section.  */
+#undef	HAVE_SDATA_SECTION
+
+/* Define if compiler supports AVX512.  */
+#undef  HAVE_AVX512_SUPPORT
+
+/* Define if assembler supports AVX512.  */
+#undef  HAVE_AVX512_ASM_SUPPORT
+
+/* Define if assembler supports vector instructions on S390.  */
+#undef  HAVE_S390_VX_ASM_SUPPORT
+
+/* Define if assembler supports Intel MPX.  */
+#undef  HAVE_MPX_SUPPORT
+
+/* Define if the compiler\'s exception support is based on libunwind.  */
+#undef	HAVE_CC_WITH_LIBUNWIND
+
+/* Define if the access to static and hidden variables is position independent
+   and does not need relocations.  */
+#undef	PI_STATIC_AND_HIDDEN
+
+/* Define this to disable the 'hidden_proto' et al macros in
+   include/libc-symbols.h that avoid PLT slots in the shared objects.  */
+#undef	NO_HIDDEN
+
+/* AArch64 big endian ABI */
+#undef HAVE_AARCH64_BE
+
+
+/* Defined to some form of __attribute__ ((...)) if the compiler supports
+   a different, more efficient calling convention.  */
+#if defined USE_REGPARMS && !defined PROF
+# define internal_function __attribute__ ((regparm (3), stdcall))
+#endif
+
+/* Linux specific: minimum supported kernel version.  */
+#undef	__LINUX_KERNEL_VERSION
+
+/* Override abi-tags ABI version if necessary.  */
+#undef  __ABI_TAG_VERSION
+
+/* bash 2.0 introduced the _XXX_GNU_nonoption_argv_flags_ variable to help
+   getopt determine whether a parameter is a flag or not.  This features
+   was disabled later since it caused trouble.  We are by default therefore
+   disabling the support as well.  */
+#undef USE_NONOPTION_FLAGS
+
+/* Mach/Hurd specific: define if mig supports the `retcode' keyword.  */
+#undef	HAVE_MIG_RETCODE
+
+/* Mach specific: define if the `host_page_size' RPC is available.  */
+#undef	HAVE_HOST_PAGE_SIZE
+
+/* Mach/i386 specific: define if the `i386_io_perm_*' RPCs are available.  */
+#undef	HAVE_I386_IO_PERM_MODIFY
+
+/* Mach/i386 specific: define if the `i386_set_gdt' RPC is available.  */
+#undef	HAVE_I386_SET_GDT
+
+/* Defined of libidn is available.  */
+#undef HAVE_LIBIDN
+
+/* Define if inlined system calls are available.  */
+#undef HAVE_INLINED_SYSCALLS
+
+/* Define if your compiler defaults to -msecure-plt mode on ppc.  */
+#undef HAVE_PPC_SECURE_PLT
+
+/* Define if __stack_chk_guard canary should be randomized at program startup.  */
+#undef ENABLE_STACKGUARD_RANDOMIZE
+
+/* Define if lock elision should be enabled by default.  */
+#undef ENABLE_LOCK_ELISION
+
+/* Package description.  */
+#undef PKGVERSION
+
+/* Bug reporting address.  */
+#undef REPORT_BUGS_TO
+
+/* Define if multi-arch DSOs should be generated.  */
+#undef USE_MULTIARCH
+
+/* Define if `.ctors' and `.dtors' sections shouldn't be used.  */
+#undef	NO_CTORS_DTORS_SECTIONS
+
+/* Define if obsolete RPC code should be made available for user-level code
+   to link against.  */
+#undef LINK_OBSOLETE_RPC
+
+/* Define if Systemtap <sys/sdt.h> probes should be defined.  */
+#undef USE_STAP_PROBE
+
+/* Define if library functions should try to contact the nscd daemon.  */
+#undef USE_NSCD
+
+/* Define if the dynamic linker should consult an ld.so.cache file.  */
+#undef USE_LDCONFIG
+
+/* Define to 1 if STT_GNU_IFUNC support actually works.  */
+#define HAVE_IFUNC 0
+
+/* Define if linux/fanotify.h is available.  */
+#undef HAVE_LINUX_FANOTIFY_H
+
+/* Define if the linker defines __ehdr_start.  */
+#undef HAVE_EHDR_START
+
+/*
+ */
+
+#ifndef	_LIBC
+
+/* These symbols might be defined by some sysdeps configures.
+   They are used only in miscellaneous generator programs, not
+   in compiling libc itself.   */
+
+/* sysdeps/generic/configure.ac */
+#undef	HAVE_PSIGNAL
+
+/* sysdeps/unix/configure.ac */
+#undef	HAVE_STRERROR
+
+/* sysdeps/unix/common/configure.ac */
+#undef	HAVE_SYS_SIGLIST
+#undef	HAVE__SYS_SIGLIST
+#undef	HAVE__CTYPE_
+#undef	HAVE___CTYPE_
+#undef	HAVE___CTYPE
+#undef	HAVE__CTYPE__
+#undef	HAVE__CTYPE
+#undef	HAVE__LOCP
+
+#endif
+
+/*
+ */
+
+#ifdef	_LIBC
+
+/* The zic and zdump programs need these definitions.  */
+
+#define	HAVE_STRERROR	1
+
+/* The locale code needs these definitions.  */
+
+#define HAVE_REGEX 1
+
+/* The ARM hard-float ABI is being used.  */
+#undef HAVE_ARM_PCS_VFP
+
+/* The ARM movw/movt instructions using PC-relative relocs work right.  */
+#define ARM_PCREL_MOVW_OK 0
+
+/* The pt_chown binary is being built and used by grantpt.  */
+#define HAVE_PT_CHOWN 0
+
+/* Define if the compiler supports __builtin_trap without
+   any external dependencies such as making a function call.  */
+#define HAVE_BUILTIN_TRAP 0
+
+/* ports/sysdeps/mips/configure.in  */
+/* Define if using the IEEE 754-2008 NaN encoding on the MIPS target.  */
+#undef HAVE_MIPS_NAN2008
+
+/* The PowerPC64 ELFv2 ABI is being used.  */
+#undef HAVE_ELFV2_ABI
+
+/* PowerPC32 uses fcfid for integer to floating point conversions.  */
+#define HAVE_PPC_FCFID 0
+
+/* PowerPC32 uses fctidz for floating point to long long conversions.  */
+#define HAVE_PPC_FCTIDZ 0
+
+#endif