diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.1_p2-r1.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.1_p2-r1.ebuild
index 051b82ae22..8e926747c3 100644
--- a/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.1_p2-r1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.1_p2-r1.ebuild
@@ -36,17 +36,24 @@ case ${PV} in
 			patch_url=
 			my_patch_index=
 
-			for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
-				for url in mirror://gnu/${pn} ftp://ftp.cwru.edu/pub/bash ; do
-					patch_url=$(printf "${url}/${PN}-$(ver_cut 1-2)-patches/${my_p}-%03d" ${my_patch_index})
-					SRC_URI+=" ${patch_url}"
-					SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
-				done
+			upstream_url_base="mirror://gnu/bash"
+			mirror_url_base="ftp://ftp.cwru.edu/pub/bash"
 
-				MY_PATCHES+=( "${DISTDIR}"/$(printf ${my_p}-%03d ${my_patch_index}) )
+			for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
+				printf -v mangled_patch_ver ${my_p}-%03d ${my_patch_index}
+				patch_url="${upstream_url_base}/${MY_P}-patches/${mangled_patch_ver}"
+
+				SRC_URI+=" ${patch_url}"
+				SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
+
+				# Add in the mirror URL too.
+				SRC_URI+=" ${patch_url/${upstream_url_base}/${mirror_url_base}}"
+				SRC_URI+=" verify-sig? ( ${patch_url/${upstream_url_base}/${mirror_url_base}} )"
+
+				MY_PATCHES+=( "${DISTDIR}"/${mangled_patch_ver} )
 			done
 
-			unset my_pn patch_url my_patch_index
+			unset my_p patch_url my_patch_index upstream_url_base mirror_url_base
 		fi
 	;;
 esac
@@ -54,7 +61,7 @@ esac
 LICENSE="GPL-3"
 SLOT="0/8"  # subslot matches SONAME major
 [[ ${PV} == *_rc* ]] || \
-KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~x64-cygwin ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+KEYWORDS="~alpha amd64 arm arm64 hppa ~ia64 ~loong ~m68k ~mips ppc ppc64 ~riscv ~s390 sparc x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 IUSE="static-libs +unicode utils"
 
 RDEPEND=">=sys-libs/ncurses-5.9-r3:=[static-libs?,unicode(+)?,${MULTILIB_USEDEP}]"
diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.2_p1.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.2_p1.ebuild
index b20dee17fe..29aa8e80be 100644
--- a/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.2_p1.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-8.2_p1.ebuild
@@ -49,17 +49,24 @@ elif is_release ; then
 		patch_url=
 		my_patch_index=
 
-		for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
-			for url in mirror://gnu/${pn} ftp://ftp.cwru.edu/pub/bash ; do
-				patch_url=$(printf "${url}/${PN}-$(ver_cut 1-2)-patches/${my_p}-%03d" ${my_patch_index})
-				SRC_URI+=" ${patch_url}"
-				SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
-			done
+		upstream_url_base="mirror://gnu/bash"
+		mirror_url_base="ftp://ftp.cwru.edu/pub/bash"
 
-			MY_PATCHES+=( "${DISTDIR}"/$(printf ${my_p}-%03d ${my_patch_index}) )
+		for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
+			printf -v mangled_patch_ver ${my_p}-%03d ${my_patch_index}
+			patch_url="${upstream_url_base}/${MY_P}-patches/${mangled_patch_ver}"
+
+			SRC_URI+=" ${patch_url}"
+			SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
+
+			# Add in the mirror URL too.
+			SRC_URI+=" ${patch_url/${upstream_url_base}/${mirror_url_base}}"
+			SRC_URI+=" verify-sig? ( ${patch_url/${upstream_url_base}/${mirror_url_base}} )"
+
+			MY_PATCHES+=( "${DISTDIR}"/${mangled_patch_ver} )
 		done
 
-		unset my_pn patch_url my_patch_index
+		unset my_p patch_url my_patch_index upstream_url_base mirror_url_base
 	fi
 else
 	SRC_URI="mirror://gnu/${PN}/${MY_P}.tar.gz ftp://ftp.cwru.edu/pub/bash/${MY_P}.tar.gz"
@@ -73,7 +80,7 @@ fi
 LICENSE="GPL-3"
 SLOT="0/8"  # subslot matches SONAME major
 if is_release ; then
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 fi
 IUSE="static-libs +unicode utils"
 
diff --git a/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-9999.ebuild b/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-9999.ebuild
index b20dee17fe..29aa8e80be 100644
--- a/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-9999.ebuild
+++ b/sdk_container/src/third_party/portage-stable/sys-libs/readline/readline-9999.ebuild
@@ -49,17 +49,24 @@ elif is_release ; then
 		patch_url=
 		my_patch_index=
 
-		for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
-			for url in mirror://gnu/${pn} ftp://ftp.cwru.edu/pub/bash ; do
-				patch_url=$(printf "${url}/${PN}-$(ver_cut 1-2)-patches/${my_p}-%03d" ${my_patch_index})
-				SRC_URI+=" ${patch_url}"
-				SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
-			done
+		upstream_url_base="mirror://gnu/bash"
+		mirror_url_base="ftp://ftp.cwru.edu/pub/bash"
 
-			MY_PATCHES+=( "${DISTDIR}"/$(printf ${my_p}-%03d ${my_patch_index}) )
+		for ((my_patch_index=1; my_patch_index <= ${PLEVEL} ; my_patch_index++)) ; do
+			printf -v mangled_patch_ver ${my_p}-%03d ${my_patch_index}
+			patch_url="${upstream_url_base}/${MY_P}-patches/${mangled_patch_ver}"
+
+			SRC_URI+=" ${patch_url}"
+			SRC_URI+=" verify-sig? ( ${patch_url}.sig )"
+
+			# Add in the mirror URL too.
+			SRC_URI+=" ${patch_url/${upstream_url_base}/${mirror_url_base}}"
+			SRC_URI+=" verify-sig? ( ${patch_url/${upstream_url_base}/${mirror_url_base}} )"
+
+			MY_PATCHES+=( "${DISTDIR}"/${mangled_patch_ver} )
 		done
 
-		unset my_pn patch_url my_patch_index
+		unset my_p patch_url my_patch_index upstream_url_base mirror_url_base
 	fi
 else
 	SRC_URI="mirror://gnu/${PN}/${MY_P}.tar.gz ftp://ftp.cwru.edu/pub/bash/${MY_P}.tar.gz"
@@ -73,7 +80,7 @@ fi
 LICENSE="GPL-3"
 SLOT="0/8"  # subslot matches SONAME major
 if is_release ; then
-	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~x64-cygwin ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~sparc-solaris ~sparc64-solaris ~x64-solaris ~x86-solaris"
+	KEYWORDS="~alpha ~amd64 ~arm ~arm64 ~hppa ~ia64 ~loong ~m68k ~mips ~ppc ~ppc64 ~riscv ~s390 ~sparc ~x86 ~amd64-linux ~x86-linux ~arm64-macos ~ppc-macos ~x64-macos ~x64-solaris"
 fi
 IUSE="static-libs +unicode utils"