glibc should automatically pick up kernel version

Makefile

@@ -6,7 +6,7 @@ all: nsswitch.conf ld.so.conf
 	cd glibc-2.29 && sed -i 's|libs -o|libs -L/usr/lib -Wl,-dynamic-linker=$(LINKER) -o|' scripts/test-installation.pl
 	cd glibc-2.29 && sed -i 's/\\$$$$(pwd)/`pwd`/' timezone/Makefile
 	mkdir glibc-build
-	cd glibc-build && ../glibc-2.29/configure --build=$(CLFS_TARGET) --host=$(CLFS_TARGET) --prefix=/usr --disable-werror --enable-kernel=5.2.8 --enable-stack-protector=strong libc_cv_slibdir=/lib
+	cd glibc-build && ../glibc-2.29/configure --build=$(CLFS_TARGET) --host=$(CLFS_TARGET) --prefix=/usr --disable-werror --enable-kernel=$$(uname -r) --enable-stack-protector=strong libc_cv_slibdir=/lib
 	$(MAKE) -C glibc-build
 # FIXME: glibc tests fail, we should exclude tests which are known to fail and beyond our control
 	-if [[ ! "$(BUILD_OPTIONS)" =~ no-tests ]] ; then \

build.xml

@@ -13,7 +13,7 @@
    <env key="CC" value="${CLFS_TARGET}-gcc"/>
    <env key="AR" value="${CLFS_TARGET}-ar"/>
    <env key="RANLIB" value="${CLFS_TARGET}-ranlib"/>
-   <arg line="--prefix=/tools --host=${CLFS_TARGET} --build=${CLFS_HOST} --enable-kernel=5.2.8 --with-binutils=${sysrootdir}/cross-tools/bin --with-headers=${sysrootdir}/tools/include"/>
+   <arg line="--prefix=/tools --host=${CLFS_TARGET} --build=${CLFS_HOST} --with-binutils=${sysrootdir}/cross-tools/bin --with-headers=${sysrootdir}/tools/include"/>
   </exec>
   <exec executable="make" dir="${makedir}" failonerror="true">
    <env key="PATH" path="${PATH}"/>