diff --git a/sci-physics/root/root-6.26.08.ebuild b/sci-physics/root/root-6.26.08.ebuild
index ec8f9983775c0..c83e19af3636e 100644
--- a/sci-physics/root/root-6.26.08.ebuild
+++ b/sci-physics/root/root-6.26.08.ebuild
@@ -139,9 +139,9 @@ pkg_setup() {
 	use python && python-single-r1_pkg_setup
 
 	elog "There are extra options on packages not available in Gentoo."
-	elog "You can use the environment variable EXTRA_ECONF to enable"
+	elog "You can use the environment variable MYCMAKEARGS to enable"
 	elog "these packages. For example, for Vdt you would set:"
-	elog "EXTRA_ECONF=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
+	elog "MYCMAKEARGS=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
 }
 
 src_prepare() {
@@ -290,7 +290,6 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		"${EXTRA_ECONF}"
 	)
 
 	cmake_src_configure
diff --git a/sci-physics/root/root-6.26.9999.ebuild b/sci-physics/root/root-6.26.9999.ebuild
index ec8f9983775c0..c83e19af3636e 100644
--- a/sci-physics/root/root-6.26.9999.ebuild
+++ b/sci-physics/root/root-6.26.9999.ebuild
@@ -139,9 +139,9 @@ pkg_setup() {
 	use python && python-single-r1_pkg_setup
 
 	elog "There are extra options on packages not available in Gentoo."
-	elog "You can use the environment variable EXTRA_ECONF to enable"
+	elog "You can use the environment variable MYCMAKEARGS to enable"
 	elog "these packages. For example, for Vdt you would set:"
-	elog "EXTRA_ECONF=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
+	elog "MYCMAKEARGS=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
 }
 
 src_prepare() {
@@ -290,7 +290,6 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		"${EXTRA_ECONF}"
 	)
 
 	cmake_src_configure
diff --git a/sci-physics/root/root-6.28.00.ebuild b/sci-physics/root/root-6.28.00.ebuild
index e25434a11de77..473a60acd7591 100644
--- a/sci-physics/root/root-6.28.00.ebuild
+++ b/sci-physics/root/root-6.28.00.ebuild
@@ -143,9 +143,9 @@ pkg_setup() {
 	use python && python-single-r1_pkg_setup
 
 	elog "There are extra options on packages not available in Gentoo."
-	elog "You can use the environment variable EXTRA_ECONF to enable"
+	elog "You can use the environment variable MYCMAKEARGS to enable"
 	elog "these packages. For example, for Vdt you would set:"
-	elog "EXTRA_ECONF=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
+	elog "MYCMAKEARGS=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
 }
 
 src_prepare() {
@@ -307,7 +307,6 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		"${EXTRA_ECONF}"
 	)
 
 	# Needs to be here, otherwise gets overriden by cmake.eclass
diff --git a/sci-physics/root/root-6.28.9999.ebuild b/sci-physics/root/root-6.28.9999.ebuild
index e25434a11de77..473a60acd7591 100644
--- a/sci-physics/root/root-6.28.9999.ebuild
+++ b/sci-physics/root/root-6.28.9999.ebuild
@@ -143,9 +143,9 @@ pkg_setup() {
 	use python && python-single-r1_pkg_setup
 
 	elog "There are extra options on packages not available in Gentoo."
-	elog "You can use the environment variable EXTRA_ECONF to enable"
+	elog "You can use the environment variable MYCMAKEARGS to enable"
 	elog "these packages. For example, for Vdt you would set:"
-	elog "EXTRA_ECONF=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
+	elog "MYCMAKEARGS=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
 }
 
 src_prepare() {
@@ -307,7 +307,6 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		"${EXTRA_ECONF}"
 	)
 
 	# Needs to be here, otherwise gets overriden by cmake.eclass
diff --git a/sci-physics/root/root-9999.ebuild b/sci-physics/root/root-9999.ebuild
index e25434a11de77..473a60acd7591 100644
--- a/sci-physics/root/root-9999.ebuild
+++ b/sci-physics/root/root-9999.ebuild
@@ -143,9 +143,9 @@ pkg_setup() {
 	use python && python-single-r1_pkg_setup
 
 	elog "There are extra options on packages not available in Gentoo."
-	elog "You can use the environment variable EXTRA_ECONF to enable"
+	elog "You can use the environment variable MYCMAKEARGS to enable"
 	elog "these packages. For example, for Vdt you would set:"
-	elog "EXTRA_ECONF=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
+	elog "MYCMAKEARGS=\"-Dbuiltin_vdt=ON -Dvdt=ON\""
 }
 
 src_prepare() {
@@ -307,7 +307,6 @@ src_configure() {
 		-Dx11=$(usex X)
 		-Dxml=$(usex xml)
 		-Dxrootd=$(usex xrootd)
-		"${EXTRA_ECONF}"
 	)
 
 	# Needs to be here, otherwise gets overriden by cmake.eclass