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authorRichard Purdie <richard.purdie@linuxfoundation.org>2018-04-06 14:53:53 +0200
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-04-07 22:34:41 +0100
commitc1573cb7faeb296fe7077a60d02443d5ed5bded0 (patch)
treed0fdcdc7f92d91381ab23d77f16c73729004f94d /meta/recipes-core/glibc
parentf65ebfeda0bfbac78e4a2a6609ba654ca38a8b0e (diff)
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nativesdk-glibc: Split glibc and libcrypt to use libxcrypt instead
Fedora28[1] has decided to go ahead and use libxcrypt to replace libcrypt from glibc despite the change not having merged into glibc upstream yet. This breaks the use of uninative in OE on fedora28 since binaries there are now using new symbols only found in libxcrypt. libxcrypt is meant to be backwards compatible with libcrypt but not the reverse. Since this will impact OE in the next release cycle, this changes nativesdk only to use this new model and adds libxcrypt to work in that case. This allows us to build a uninative which is compatible with fedora28 and previous other OSes. In order to work, recipes will now need to depend on virtual/crypt where they use libcrypt since its now a separate library and we can't depend on it from glibc to preseve backwards compatibility since glibc needs to build first. For now, only the problematic nativesdk recipes have been fixed up. For target use, the default provider remains glibc for now. Assuming this change is merged into upstream glibc, we will need to roll this change out for the target but we will do this in the next release cycle when we can better deal with the resulting bugs. [1] https://fedoraproject.org/wiki/Changes/Replace_glibc_libcrypt_with_libxcrypt Original patch from Charles-Antoine Couret <charles-antoine.couret@essensium.com>, tweaked by RP to add virtual provides, SkipRecipe for libxcrypt and other minor tweaks. Signed-off-by: Charles-Antoine Couret <charles-antoine.couret@essensium.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Diffstat (limited to 'meta/recipes-core/glibc')
-rw-r--r--meta/recipes-core/glibc/glibc.inc5
-rw-r--r--meta/recipes-core/glibc/glibc/0031-nativesdk-deprecate-libcrypt.patch419
-rw-r--r--meta/recipes-core/glibc/glibc_2.27.bb1
-rw-r--r--meta/recipes-core/glibc/site_config/headers1
4 files changed, 424 insertions, 2 deletions
diff --git a/meta/recipes-core/glibc/glibc.inc b/meta/recipes-core/glibc/glibc.inc
index 361a6fde10..9e02ffdff1 100644
--- a/meta/recipes-core/glibc/glibc.inc
+++ b/meta/recipes-core/glibc/glibc.inc
@@ -35,7 +35,10 @@ siteconfig_do_siteconfig_gencache_prepend = " \
DEPENDS = "virtual/${TARGET_PREFIX}gcc-initial libgcc-initial linux-libc-headers virtual/${TARGET_PREFIX}libc-initial"
# nptl needs libgcc but dlopens it, so our shlibs code doesn't detect this
#RDEPENDS_${PN} += "${@['','libgcc']['nptl' in '${GLIBC_ADDONS}']}"
-PROVIDES = "virtual/libc virtual/${TARGET_PREFIX}libc-for-gcc"
+
+CRYPTPROVIDES = "virtual/crypt"
+CRYPTPROVIDES_class-nativesdk = ""
+PROVIDES = "virtual/libc virtual/${TARGET_PREFIX}libc-for-gcc ${CRYPTPROVIDES}"
PROVIDES += "virtual/libintl virtual/libiconv"
inherit autotools texinfo distro_features_check systemd
diff --git a/meta/recipes-core/glibc/glibc/0031-nativesdk-deprecate-libcrypt.patch b/meta/recipes-core/glibc/glibc/0031-nativesdk-deprecate-libcrypt.patch
new file mode 100644
index 0000000000..a9132ed3d2
--- /dev/null
+++ b/meta/recipes-core/glibc/glibc/0031-nativesdk-deprecate-libcrypt.patch
@@ -0,0 +1,419 @@
+Background information:
+
+https://sourceware.org/ml/libc-alpha/2017-08/msg01257.html
+https://fedoraproject.org/wiki/Changes/Replace_glibc_libcrypt_with_libxcrypt
+
+Upstream-Status: Submitted [libc-alpha@sourceware.org]
+Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
+
+From: Zack Weinberg <zackw@panix.com>
+Subject: [PATCH] Deprecate libcrypt and don't build it by default
+
+Back in June, Björn Esser proposed to add OpenBSD-compatible bcrypt
+support to our implementation of crypt(3), and Zack Weinberg replied
+that it might actually make more sense to _remove_ libcrypt from
+glibc, freeing up libcrypt.so.1 and crypt.h to be provided by a
+separate project that could move faster. (For instance, libxcrypt:
+https://github.com/besser82/libxcrypt)
+
+This patch disables build and installation of libcrypt by default. It
+can be re-enabled with --enable-obsolete-crypt to configure. Unlike
+libnsl, we do *not* install a runtime shared library; that's left to
+the replacement. (Unlike the SunRPC situation, I think we can
+probably drop this code altogether in a release or two.)
+
+The function prototypes for crypt and encrypt are removed from
+unistd.h, and the function prototype for setkey is removed from
+stdlib.h; they do *not* come back with --enable-obsolete-crypt. This
+means glibc no longer provides the POSIX CRYPT option, and the macro
+_XOPEN_CRYPT is also removed from unistd.h to indicate that.
+(_SC_XOPEN_CRYPT is still defined, but sysconf(_SC_XOPEN_CRYPT) will
+return -1 at runtime.) These functions are also unconditionally
+removed from conform/data/{stdlib,unistd}.h-data.
+
+ * posix/unistd.h (_XOPEN_CRYPT, crypt, encrypt): Don't declare.
+ * stdlib/stdlib.h (setkey): Don't declare.
+
+ * configure.ac (--enable-obsolete-crypt): New configure option.
+ * configure: Regenerate.
+ * config.make.in (build-obsolete-crypt): New makefile variable.
+ * crypt/Banner: Delete file.
+ * crypt/Makefile: Don't build anything unless
+ $(build-obsolete-crypt) is 'yes'.
+ * sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile: Only add things
+ to libcrypt-sysdep_routines when $(build-obsolete-crypt) is 'yes'.
+ * sysdeps/sparc/sparc64/multiarch/Makefile: Likewise.
+ * sysdeps/unix/sysv/linux/arm/Makefile: Likewise.
+
+ * conform/Makefile: Only include libcrypt.a in linknamespace tests
+ when $(build-obsolete-crypt) is 'yes'.
+ * conform/data/stdlib.h-data (setkey): Don't expect.
+ * conform/data/unistd.h-data (crypt, encrypt): Don't expect.
+ * elf/Makefile: Only perform various tests of libcrypt.so/libcrypt.a
+ when $(build-obsolete-crypt) is 'yes'.
+ * elf/tst-linkall-static.c: Don't include crypt.h when USE_CRYPT
+ is false.
+---
+ NEWS | 18 ++++++++++++++++++
+ config.make.in | 1 +
+ configure | 13 +++++++++++++
+ configure.ac | 8 ++++++++
+ conform/Makefile | 14 ++++++++++----
+ conform/data/stdlib.h-data | 3 ---
+ conform/data/unistd.h-data | 6 ------
+ crypt/Makefile | 5 +++++
+ elf/Makefile | 16 ++++++++++++----
+ elf/tst-linkall-static.c | 2 ++
+ posix/unistd.h | 16 ----------------
+ stdlib/stdlib.h | 6 ------
+ sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile | 2 ++
+ sysdeps/sparc/sparc64/multiarch/Makefile | 2 ++
+ sysdeps/unix/sysv/linux/arm/Makefile | 2 ++
+ 15 files changed, 75 insertions(+), 39 deletions(-)
+
+diff --git a/config.make.in b/config.make.in
+index 9e5e24b2c6..8fe610d04d 100644
+--- a/config.make.in
++++ b/config.make.in
+@@ -82,6 +82,7 @@ mach-interface-list = @mach_interface_list@
+
+ experimental-malloc = @experimental_malloc@
+
++build-obsolete-crypt = @build_obsolete_crypt@
+ nss-crypt = @libc_cv_nss_crypt@
+ static-nss-crypt = @libc_cv_static_nss_crypt@
+
+diff --git a/configure b/configure
+index 7a8bd3f817..46f6bd7f86 100755
+--- a/configure
++++ b/configure
+@@ -672,6 +672,7 @@ base_machine
+ have_tunables
+ build_pt_chown
+ build_nscd
++build_obsolete_crypt
+ build_obsolete_nsl
+ link_obsolete_rpc
+ libc_cv_static_nss_crypt
+@@ -782,6 +783,7 @@ enable_experimental_malloc
+ enable_nss_crypt
+ enable_obsolete_rpc
+ enable_obsolete_nsl
++enable_obsolete_crypt
+ enable_systemtap
+ enable_build_nscd
+ enable_nscd
+@@ -1453,6 +1455,7 @@ Optional Features:
+ link-time usage
+ --enable-obsolete-nsl build and install the obsolete libnsl library and
+ depending NSS modules
++ --enable-obsolete-crypt build and install the obsolete libcrypt library
+ --enable-systemtap enable systemtap static probe points [default=no]
+ --disable-build-nscd disable building and installing the nscd daemon
+ --disable-nscd library functions will not contact the nscd daemon
+@@ -3632,6 +3635,16 @@ if test "$build_obsolete_nsl" = yes; then
+
+ fi
+
++# Check whether --enable-obsolete-crypt was given.
++if test "${enable_obsolete_crypt+set}" = set; then :
++ enableval=$enable_obsolete_crypt; build_obsolete_crypt=$enableval
++else
++ build_obsolete_crypt=no
++fi
++
++
++
++
+ # Check whether --enable-systemtap was given.
+ if test "${enable_systemtap+set}" = set; then :
+ enableval=$enable_systemtap; systemtap=$enableval
+diff --git a/configure.ac b/configure.ac
+index ca1282a6b3..0142353740 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -378,6 +378,14 @@ if test "$build_obsolete_nsl" = yes; then
+ AC_DEFINE(LINK_OBSOLETE_NSL)
+ fi
+
++AC_ARG_ENABLE([obsolete-crypt],
++ AC_HELP_STRING([--enable-obsolete-crypt],
++ [build and install the obsolete libcrypt library]),
++ [build_obsolete_crypt=$enableval],
++ [build_obsolete_crypt=no])
++AC_SUBST(build_obsolete_crypt)
++
++
+ AC_ARG_ENABLE([systemtap],
+ [AS_HELP_STRING([--enable-systemtap],
+ [enable systemtap static probe points @<:@default=no@:>@])],
+diff --git a/conform/Makefile b/conform/Makefile
+index 864fdeca21..5ef474fb24 100644
+--- a/conform/Makefile
++++ b/conform/Makefile
+@@ -193,22 +193,28 @@ linknamespace-libs-thr = $(linknamespace-libs-isoc) \
+ $(common-objpfx)rt/librt.a $(static-thread-library)
+ linknamespace-libs-posix = $(linknamespace-libs-thr) \
+ $(common-objpfx)dlfcn/libdl.a
+-linknamespace-libs-xsi = $(linknamespace-libs-posix) \
+- $(common-objpfx)crypt/libcrypt.a
++linknamespace-libs-xsi = $(linknamespace-libs-posix)
+ linknamespace-libs-ISO = $(linknamespace-libs-isoc)
+ linknamespace-libs-ISO99 = $(linknamespace-libs-isoc)
+ linknamespace-libs-ISO11 = $(linknamespace-libs-isoc)
+-linknamespace-libs-XPG4 = $(linknamespace-libs-isoc) \
+- $(common-objpfx)crypt/libcrypt.a
++linknamespace-libs-XPG4 = $(linknamespace-libs-isoc)
+ linknamespace-libs-XPG42 = $(linknamespace-libs-XPG4)
+ linknamespace-libs-POSIX = $(linknamespace-libs-thr)
+ linknamespace-libs-UNIX98 = $(linknamespace-libs-xsi)
+ linknamespace-libs-XOPEN2K = $(linknamespace-libs-xsi)
+ linknamespace-libs-POSIX2008 = $(linknamespace-libs-posix)
+ linknamespace-libs-XOPEN2K8 = $(linknamespace-libs-xsi)
++
++ifeq ($(build-obsolete-crypt),yes)
++linknamespace-libs-xsi += $(common-objpfx)crypt/libcrypt.a
++linknamespace-libs-XPG4 += $(common-objpfx)crypt/libcrypt.a
++endif
++
+ linknamespace-libs = $(foreach std,$(conformtest-standards),\
+ $(linknamespace-libs-$(std)))
+
++
++
+ $(linknamespace-symlist-stdlibs-tests): $(objpfx)symlist-stdlibs-%: \
+ $(linknamespace-libs)
+ LC_ALL=C $(READELF) -W -s $(linknamespace-libs-$*) > $@; \
+diff --git a/conform/data/stdlib.h-data b/conform/data/stdlib.h-data
+index d8fcccc2fb..6913828196 100644
+--- a/conform/data/stdlib.h-data
++++ b/conform/data/stdlib.h-data
+@@ -149,9 +149,6 @@ function {unsigned short int*} seed48 (unsigned short int[3])
+ #if !defined ISO && !defined ISO99 && !defined ISO11 && !defined POSIX && !defined XPG4 && !defined XPG42 && !defined UNIX98
+ function int setenv (const char*, const char*, int)
+ #endif
+-#if !defined ISO && !defined ISO99 && !defined ISO11 && !defined POSIX && !defined POSIX2008
+-function void setkey (const char*)
+-#endif
+ #if !defined ISO && !defined ISO99 && !defined ISO11 && !defined XPG4 && !defined POSIX && !defined POSIX2008
+ function {char*} setstate (char*)
+ #endif
+diff --git a/conform/data/unistd.h-data b/conform/data/unistd.h-data
+index ddf4f25132..aa070528e8 100644
+--- a/conform/data/unistd.h-data
++++ b/conform/data/unistd.h-data
+@@ -437,9 +437,6 @@ function int chroot (const char*)
+ function int chown (const char*, uid_t, gid_t)
+ function int close (int)
+ function size_t confstr (int, char*, size_t)
+-#if !defined POSIX && !defined POSIX2008
+-function {char*} crypt (const char*, const char*)
+-#endif
+ #if defined XPG4 || defined XPG42 || defined UNIX98
+ function {char*} ctermid (char*)
+ function {char*} cuserid (char*)
+@@ -449,9 +446,6 @@ allow cuserid
+ #endif
+ function int dup (int)
+ function int dup2 (int, int)
+-#if !defined POSIX && !defined POSIX2008
+-function void encrypt (char[64], int)
+-#endif
+ function int execl (const char*, const char*, ...)
+ function int execle (const char*, const char*, ...)
+ function int execlp (const char*, const char*, ...)
+diff --git a/crypt/Makefile b/crypt/Makefile
+index 303800df73..024ec2c6ab 100644
+--- a/crypt/Makefile
++++ b/crypt/Makefile
+@@ -22,6 +22,8 @@ subdir := crypt
+
+ include ../Makeconfig
+
++ifeq ($(build-obsolete-crypt),yes)
++
+ headers := crypt.h
+
+ extra-libs := libcrypt
+@@ -52,9 +54,11 @@ tests += md5test sha256test sha512test
+ # machine over a minute.
+ xtests = md5test-giant
+ endif
++endif
+
+ include ../Rules
+
++ifeq ($(build-obsolete-crypt),yes)
+ ifneq ($(nss-crypt),yes)
+ md5-routines := md5 $(filter md5%,$(libcrypt-sysdep_routines))
+ sha256-routines := sha256 $(filter sha256%,$(libcrypt-sysdep_routines))
+@@ -71,3 +75,4 @@ $(addprefix $(objpfx),$(tests)): $(objpfx)libcrypt.so
+ else
+ $(addprefix $(objpfx),$(tests)): $(objpfx)libcrypt.a
+ endif
++endif
+diff --git a/elf/Makefile b/elf/Makefile
+index 2a432d8bee..366f7b80ec 100644
+--- a/elf/Makefile
++++ b/elf/Makefile
+@@ -385,15 +385,19 @@ $(objpfx)tst-_dl_addr_inside_object: $(objpfx)dl-addr-obj.os
+ CFLAGS-tst-_dl_addr_inside_object.c += $(PIE-ccflag)
+ endif
+
+-# By default tst-linkall-static should try to use crypt routines to test
+-# static libcrypt use.
+-CFLAGS-tst-linkall-static.c += -DUSE_CRYPT=1
++ifeq ($(build-obsolete-crypt),yes)
++# If the libcrypt library is being built, tst-linkall-static should
++# try to use crypt routines to test static libcrypt use.
++CFLAGS-tst-linkall-static.c = -DUSE_CRYPT=1
+ # However, if we are using NSS crypto and we don't have a static
+ # library, then we exclude the use of crypt functions in the test.
+ # We similarly exclude libcrypt.a from the static link (see below).
+ ifeq (yesno,$(nss-crypt)$(static-nss-crypt))
+ CFLAGS-tst-linkall-static.c += -UUSE_CRYPT -DUSE_CRYPT=0
+ endif
++else
++CFLAGS-tst-linkall-static.c = -DUSE_CRYPT=0
++endif
+
+ include ../Rules
+
+@@ -1113,8 +1117,10 @@ localplt-built-dso := $(addprefix $(common-objpfx),\
+ rt/librt.so \
+ dlfcn/libdl.so \
+ resolv/libresolv.so \
+- crypt/libcrypt.so \
+ )
++ifeq ($(build-obsolete-crypt),yes)
++localplt-built-dso += $(addprefix $(common-objpfx), crypt/libcrypt.so)
++endif
+ ifeq ($(build-mathvec),yes)
+ localplt-built-dso += $(addprefix $(common-objpfx), mathvec/libmvec.so)
+ endif
+@@ -1395,6 +1401,7 @@ $(objpfx)tst-linkall-static: \
+ $(common-objpfx)resolv/libanl.a \
+ $(static-thread-library)
+
++ifeq ($(build-obsolete-crypt),yes)
+ # If we are using NSS crypto and we have the ability to link statically
+ # then we include libcrypt.a, otherwise we leave out libcrypt.a and
+ # link as much as we can into the tst-linkall-static test. This assumes
+@@ -1410,6 +1417,7 @@ ifeq (no,$(nss-crypt))
+ $(objpfx)tst-linkall-static: \
+ $(common-objpfx)crypt/libcrypt.a
+ endif
++endif
+
+ # The application depends on the DSO, and the DSO loads the plugin.
+ # The plugin also depends on the DSO. This creates the circular
+diff --git a/elf/tst-linkall-static.c b/elf/tst-linkall-static.c
+index e8df38f74e..0ffae7c723 100644
+--- a/elf/tst-linkall-static.c
++++ b/elf/tst-linkall-static.c
+@@ -18,7 +18,9 @@
+
+ #include <math.h>
+ #include <pthread.h>
++#if USE_CRYPT
+ #include <crypt.h>
++#endif
+ #include <resolv.h>
+ #include <dlfcn.h>
+ #include <utmp.h>
+diff --git a/posix/unistd.h b/posix/unistd.h
+index 4d149f9945..e75ce4d4ec 100644
+--- a/posix/unistd.h
++++ b/posix/unistd.h
+@@ -107,9 +107,6 @@ __BEGIN_DECLS
+ /* The X/Open Unix extensions are available. */
+ #define _XOPEN_UNIX 1
+
+-/* Encryption is present. */
+-#define _XOPEN_CRYPT 1
+-
+ /* The enhanced internationalization capabilities according to XPG4.2
+ are present. */
+ #define _XOPEN_ENH_I18N 1
+@@ -1118,20 +1115,7 @@ ssize_t copy_file_range (int __infd, __off64_t *__pinoff,
+ extern int fdatasync (int __fildes);
+ #endif /* Use POSIX199309 */
+
+-
+-/* XPG4.2 specifies that prototypes for the encryption functions must
+- be defined here. */
+ #ifdef __USE_XOPEN
+-/* Encrypt at most 8 characters from KEY using salt to perturb DES. */
+-extern char *crypt (const char *__key, const char *__salt)
+- __THROW __nonnull ((1, 2));
+-
+-/* Encrypt data in BLOCK in place if EDFLAG is zero; otherwise decrypt
+- block in place. */
+-extern void encrypt (char *__glibc_block, int __edflag)
+- __THROW __nonnull ((1));
+-
+-
+ /* Swab pairs bytes in the first N bytes of the area pointed to by
+ FROM and copy the result to TO. The value of TO must not be in the
+ range [FROM - N + 1, FROM - 1]. If N is odd the first byte in FROM
+diff --git a/stdlib/stdlib.h b/stdlib/stdlib.h
+index 6b1ead31e0..8e23e93557 100644
+--- a/stdlib/stdlib.h
++++ b/stdlib/stdlib.h
+@@ -958,12 +958,6 @@ extern int getsubopt (char **__restrict __optionp,
+ #endif
+
+
+-#ifdef __USE_XOPEN
+-/* Setup DES tables according KEY. */
+-extern void setkey (const char *__key) __THROW __nonnull ((1));
+-#endif
+-
+-
+ /* X/Open pseudo terminal handling. */
+
+ #ifdef __USE_XOPEN2KXSI
+diff --git a/sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile b/sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
+index a6d08f3a00..d8b8297fb0 100644
+--- a/sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
++++ b/sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile
+@@ -1,6 +1,8 @@
+ ifeq ($(subdir),crypt)
++ifeq ($(build-obsolete-crypt),yes)
+ libcrypt-sysdep_routines += md5-crop sha256-crop sha512-crop
+ endif
++endif
+
+ ifeq ($(subdir),locale)
+ localedef-aux += md5-crop
+diff --git a/sysdeps/sparc/sparc64/multiarch/Makefile b/sysdeps/sparc/sparc64/multiarch/Makefile
+index eaf758e7aa..0198f9886f 100644
+--- a/sysdeps/sparc/sparc64/multiarch/Makefile
++++ b/sysdeps/sparc/sparc64/multiarch/Makefile
+@@ -1,6 +1,8 @@
+ ifeq ($(subdir),crypt)
++ifeq ($(build-obsolete-crypt),yes)
+ libcrypt-sysdep_routines += md5-crop sha256-crop sha512-crop
+ endif
++endif
+
+ ifeq ($(subdir),locale)
+ localedef-aux += md5-crop
+diff --git a/sysdeps/unix/sysv/linux/arm/Makefile b/sysdeps/unix/sysv/linux/arm/Makefile
+index 4adc35de04..6cab4f3a31 100644
+--- a/sysdeps/unix/sysv/linux/arm/Makefile
++++ b/sysdeps/unix/sysv/linux/arm/Makefile
+@@ -19,8 +19,10 @@ endif
+ # Add a syscall function to each library that needs one.
+
+ ifeq ($(subdir),crypt)
++ifeq ($(build-obsolete-crypt),yes)
+ libcrypt-sysdep_routines += libc-do-syscall
+ endif
++endif
+
+ ifeq ($(subdir),rt)
+ librt-sysdep_routines += libc-do-syscall
+--
+2.16.0
+
diff --git a/meta/recipes-core/glibc/glibc_2.27.bb b/meta/recipes-core/glibc/glibc_2.27.bb
index 772351ad46..c814798bbd 100644
--- a/meta/recipes-core/glibc/glibc_2.27.bb
+++ b/meta/recipes-core/glibc/glibc_2.27.bb
@@ -54,6 +54,7 @@ NATIVESDKFIXES_class-nativesdk = "\
file://0003-nativesdk-glibc-Raise-the-size-of-arrays-containing-.patch \
file://0004-nativesdk-glibc-Allow-64-bit-atomics-for-x86.patch \
file://relocate-locales.patch \
+ file://0031-nativesdk-deprecate-libcrypt.patch \
"
S = "${WORKDIR}/git"
diff --git a/meta/recipes-core/glibc/site_config/headers b/meta/recipes-core/glibc/site_config/headers
index 609ab53797..69fedea4e1 100644
--- a/meta/recipes-core/glibc/site_config/headers
+++ b/meta/recipes-core/glibc/site_config/headers
@@ -9,7 +9,6 @@ asm/page.h
asm/types.h
assert.h
byteswap.h
-crypt.h
ctype.h
dirent.h
dlfcn.h