# and extend for future modifications.
mkdir -p glibc-src
mkdir -p glibc-build
cd glibc-src
wget --retry-connrefused --waitretry=1 --read-timeout=20 --timeout=15 --tries=5 "https://vault.centos.org/centos/7/os/Source/SPackages/glibc-2.17-317.el7.src.rpm"
rpm2cpio "glibc-2.17-317.el7.src.rpm" |cpio -idmv
tar -xvzf "glibc-2.17-c758a686.tar.gz" --strip 1
tar -xvzf "glibc-2.17-c758a686-releng.tar.gz" --strip 1
sed -i '/patch0060/d' glibc.spec

# limitations under the License.
# ==============================================================================
#
# Builds a devtoolset cross-compiler targeting manylinux2014 (glibc 2.17 / libstdc++ 4.8).

# Install devtoolset-9 in /dt9 with glibc 2.17 and libstdc++ 4.8, for building
# manylinux2014-compatible packages.
COPY builder.devtoolset/fixlinks.sh /fixlinks.sh
COPY builder.devtoolset/rpm-patch.sh /rpm-patch.sh
COPY builder.devtoolset/build_devtoolset.sh /build_devtoolset.sh
COPY builder.devtoolset/glibc2.17-inline.patch /glibc2.17-inline.patch
RUN /build_devtoolset.sh devtoolset-9 /dt9

# Setup Python

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"os"
	"path"
	"syscall"
	"testing"
)

// Based on `man getumask` a vaporware GNU extension to glibc.
// returns file mode creation mask.
func getUmask() int {
	mask := syscall.Umask(0)
	syscall.Umask(mask)
	return mask
}

// Tests if the directory and file creations happen with proper umask.

COPY setup.packages.sh /setup.packages.sh
COPY builder.packages.txt /builder.packages.txt

RUN /setup.sources.sh && /setup.packages.sh /builder.packages.txt

RUN update-ca-certificates
# Install devtoolset-9 in /dt10 with glibc 2.17 and libstdc++ 4.8, for building
# manylinux2014-compatible packages.
COPY builder.devtoolset/fixlinks_aarch64.sh /fixlinks.sh
COPY builder.devtoolset/rpm-patch.sh /rpm-patch.sh

-		  && __string2_1bptr_p (src) && n <= 8			      \
-		  ? __mempcpy_small (dest, __mempcpy_args (src), n)	      \
-		  : __mempcpy (dest, src, n)))
-#   endif
-/* In glibc we use this function frequently but for namespace reasons
-   we have to use the name `__mempcpy'.  */
-#   define mempcpy(dest, src, n) __mempcpy (dest, src, n)
-#  endif
-

+  __extension__ struct __gconv_step_data __data[0];
 } *__gconv_t;
 
 #endif /* gconv.h */
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index c555bf2..143b26d 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -107,6 +107,11 @@
 # endif
 #endif
 
+#ifndef __attribute_copy__
+/* Provide an empty definition when cdefs.h is not included.  */

	//go:cgo_import_dynamic puts puts#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic __libc_start_main __libc_start_main#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic stdout stdout#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic fflush fflush#GLIBC_2.2.5 "libc.so.6"
	//go:cgo_import_dynamic _ _ "libpthread.so.0"
	//go:cgo_import_dynamic _ _ "libc.so.6"

In the end, the compiled Go package, which will eventually be

OAGV/M,EAAIge,aAAgBb,EAASiD,EAAKZ,QAAQvC,IAAIjd,EAAI+M,OAAQ,KAEnD/M,EAsBX,SAAS0gB,GAAYC,EAAWvb,GAC5B,OAAO,SAAU9B,EAAKsd,GAClB,IAASC,EAmBT,OAjBe,OAAXD,GAAoBze,OAAOye,KAC3Bzb,EACIC,EACA,YACIA,EACA,uDACAA,EACA,kGAGRyb,EAAMvd,EACNA,EAAMsd,EACNA,EAASC,GAIbC,GAAY5iB,KADN8hB,GAAe1c,EAAKsd,GACHD,GAChBziB,MAIf,SAAS4iB,GAAYvZ,EAAKkW,EAAUsD,EAAU9c,GAC1C,IAAI+Z,EAAeP,EAASW,cACxBL,EAAOW,GAASjB,EAASY,OACzBtR,EAAS2R,GAASjB,EAASa,SAE1B/W,EAAIzF,YAKTmC,EAA+B,MAAhBA,GAA8BA,EAEzC8I,GACAU,GAASlG,EAAKoC,EAAIpC,EAAK,...

- Calico is unchanged at v3.3.1 as of Kubernetes 1.13. ([#70932](https://github.com/kubernetes/kubernetes/pull/70932))
- GLBC remains unchanged at v1.2.3 as of Kubernetes 1.12. ([#66793](https://github.com/kubernetes/kubernetes/pull/66793))