diff --git a/dev-build/autoconf/autoconf-2.73-r1.ebuild b/dev-build/autoconf/autoconf-2.73-r1.ebuild
index f4b39dcc22fb2..13d5a52addf7e 100644
--- a/dev-build/autoconf/autoconf-2.73-r1.ebuild
+++ b/dev-build/autoconf/autoconf-2.73-r1.ebuild
@@ -81,7 +81,7 @@ src_prepare() {
 
 	# usr/bin/libtool is provided by binutils-apple, need gnu libtool
 	if [[ ${CHOST} == *-darwin* ]] ; then
-		PATCHES+=( "${FILESDIR}"/${PN}-2.71-darwin.patch )
+		PATCHES+=( "${FILESDIR}"/${PN}-2.73-darwin.patch )
 	fi
 
 	# Save timestamp to avoid later makeinfo call
diff --git a/dev-build/autoconf/autoconf-9999.ebuild b/dev-build/autoconf/autoconf-9999.ebuild
index ec41a181b6638..13d5a52addf7e 100644
--- a/dev-build/autoconf/autoconf-9999.ebuild
+++ b/dev-build/autoconf/autoconf-9999.ebuild
@@ -55,12 +55,16 @@ BDEPEND+="
 "
 RDEPEND="
 	${BDEPEND}
-	>=dev-build/autoconf-wrapper-20231224
+	>=dev-build/autoconf-wrapper-20260320
 	sys-devel/gnuconfig
 	!~${CATEGORY}/${P}:2.5
 "
 [[ ${PV} == 9999 ]] && BDEPEND+=" >=sys-apps/texinfo-4.3"
 
+PATCHES=(
+	"${FILESDIR}"/${PN}-2.73-maintainer-mode-autoheader.patch
+)
+
 src_prepare() {
 	if [[ ${PV} == *9999 ]] ; then
 		# Avoid the "dirty" suffix in the git version by generating it
@@ -77,7 +81,7 @@ src_prepare() {
 
 	# usr/bin/libtool is provided by binutils-apple, need gnu libtool
 	if [[ ${CHOST} == *-darwin* ]] ; then
-		PATCHES+=( "${FILESDIR}"/${PN}-2.71-darwin.patch )
+		PATCHES+=( "${FILESDIR}"/${PN}-2.73-darwin.patch )
 	fi
 
 	# Save timestamp to avoid later makeinfo call
diff --git a/dev-build/autoconf/files/autoconf-2.73-darwin.patch b/dev-build/autoconf/files/autoconf-2.73-darwin.patch
new file mode 100644
index 0000000000000..94007e9ad455b
--- /dev/null
+++ b/dev-build/autoconf/files/autoconf-2.73-darwin.patch
@@ -0,0 +1,13 @@
+We rename libtoolize -> glibtoolize on macOS to avoid conflicting with
+the system tool.
+--- a/bin/autoreconf.in
++++ b/bin/autoreconf.in
+@@ -130,7 +130,7 @@ my %C = (
+   autom4te    => $ENV{'AUTOM4TE'}    || '@bindir@/@autom4te-name@',
+   automake    => $ENV{'AUTOMAKE'}    || 'automake',
+   aclocal     => $ENV{'ACLOCAL'}     || 'aclocal',
+-  libtoolize  => $ENV{'LIBTOOLIZE'}  || 'libtoolize',
++  libtoolize  => $ENV{'LIBTOOLIZE'}  || 'glibtoolize',
+   intltoolize => $ENV{'INTLTOOLIZE'} || 'intltoolize',
+   gtkdocize   => $ENV{'GTKDOCIZE'}   || 'gtkdocize',
+   autopoint   => $ENV{'AUTOPOINT'}   || 'autopoint',