3 files changed, 71 insertions, 0 deletions
diff --git a/dev-ada/libgpr/Manifest b/dev-ada/libgpr/Manifest
index 2dc5ac1abb26..fefa61da4665 100644
--- a/dev-ada/libgpr/Manifest
+++ b/dev-ada/libgpr/Manifest
@@ -1 +1,2 @@
 DIST gprbuild-25.0.0.tar.gz 940774 BLAKE2B b2a2895db767b55e459351ea6fbeb91a771b6e39672217d53fb2b4aeea4f42aa093760448da715ffb0b7da54c50b4b55f0034910ebfdfc52a8cde7dad7533ef0 SHA512 eb2d7072194323cae90acd0c8683eeb6a806ef6ff2ed4d3496e8b94c5b63dae8a428ec428a3610b380df7e122d7a00d9e9634ef06b5369b165536c99209602ce
+DIST gprbuild-26.0.0.tar.gz 922278 BLAKE2B ae055fd7427c926dd5bedb1de96d7070e4e3c4f395a6147cb8832eb2fca47d51dfd90f5e95d7012dffdece8b17e0a93673a6a8e825717e315cfc3602fb926f8f SHA512 e5a5dcaf0162154793b23655a9804453498b230a377ae45eabe67f51e15ff69194d98a6b6839fd2ebb0d136e3128e47d296da10ea7be67bec8dbed1d016a1777
diff --git a/dev-ada/libgpr/files/libgpr-26.0.0-gcc16.patch b/dev-ada/libgpr/files/libgpr-26.0.0-gcc16.patch
new file mode 100644
index 000000000000..7e8ce532da2b
--- /dev/null
+++ b/dev-ada/libgpr/files/libgpr-26.0.0-gcc16.patch
@@ -0,0 +1,11 @@
+--- a/gpr/src/gpr-compilation-process.adb	2025-12-02 20:16:02.856971670 +0100
++++ b/gpr/src/gpr-compilation-process.adb	2025-12-02 20:16:18.920776145 +0100
+@@ -41,7 +41,7 @@
+    --  A set of key=value
+ 
+    package Prj_Maps is new Containers.Indefinite_Ordered_Maps
+-     (String, Env_Maps.Map, Env_Maps."<", Env_Maps."=");
++     (String, Env_Maps.Map, "<", Env_Maps."=");
+    --  A set of project+language=map
+ 
+    function "<" (Left, Right : Id) return Boolean is
diff --git a/dev-ada/libgpr/libgpr-26.0.0.ebuild b/dev-ada/libgpr/libgpr-26.0.0.ebuild
new file mode 100644
index 000000000000..55a1a647f546
--- /dev/null
+++ b/dev-ada/libgpr/libgpr-26.0.0.ebuild
@@ -0,0 +1,59 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+
+ADA_COMPAT=( gcc_{15..16} )
+inherit ada multiprocessing
+
+MYPN=gprbuild
+MYP=${MYPN}-${PV}
+
+DESCRIPTION="Ada library to handle GPRbuild project files"
+HOMEPAGE="https://github.com/AdaCore/gprbuild"
+SRC_URI="https://github.com/AdaCore/${MYPN}/archive/refs/tags/v${PV}.tar.gz
+		-> ${MYP}.tar.gz"
+
+S="${WORKDIR}"/${MYP}
+
+LICENSE="GPL-3"
+SLOT="0/${PV}"
+KEYWORDS="~amd64 ~arm64 ~x86"
+IUSE="static-libs static-pic"
+
+RDEPEND="dev-ada/xmlada:=[shared,static-libs?,static-pic?,${ADA_USEDEP}]"
+DEPEND="${RDEPEND}
+	dev-ada/gprbuild[${ADA_USEDEP}]"
+REQUIRED_USE="${ADA_REQUIRED_USE}"
+
+PATCHES=(
+	"${FILESDIR}"/${PN}-2020-gentoo.patch
+	"${FILESDIR}"/${P}-gcc16.patch
+)
+
+src_prepare() {
+	default
+	sed -i -e '/Library_Name/s|gpr|gnatgpr|' gpr/gpr.gpr || die
+}
+
+src_configure() {
+	emake setup
+}
+
+src_compile() {
+	build () {
+		gprbuild -p -m -j$(makeopts_jobs) -XBUILD=production -v \
+			-XLIBRARY_TYPE=$1 -XXMLADA_BUILD=$1 \
+			gpr/gpr.gpr -cargs:C ${CFLAGS} -cargs:Ada ${ADAFLAGS} || die
+	}
+	build relocatable
+	use static-libs && build static
+	use static-pic  && build static-pic
+}
+
+src_install() {
+	emake prefix="${D}"/usr libgpr.install.shared
+	use static-libs && emake prefix="${D}"/usr libgpr.install.static
+	use static-pic  && emake prefix="${D}"/usr libgpr.install.static-pic
+	rm -r "${D}"/usr/share/gpr/manifests || die
+}