From 6e1f1d4bdc81da1b8e48af83863271eaea9f800d Mon Sep 17 00:00:00 2001
From: Dmitry Arkhipov <grisumbras@yandex.ru>
Date: Wed, 11 Mar 2026 14:28:15 +0300
Subject: [PATCH 1/2] fix ambiguous target build system error

---
 build/Jamfile.v2 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/build/Jamfile.v2 b/build/Jamfile.v2
index b0874a3..2c7ad2c 100644
--- a/build/Jamfile.v2
+++ b/build/Jamfile.v2
@@ -35,7 +35,6 @@ if [ mpi.configured ]
 }
 else
 {
-  alias boost_graph_parallel ;
   if ! ( --without-graph_parallel in  [ modules.peek : ARGV ] )
   {
     message boost_graph_parallel
@@ -44,4 +43,8 @@ else
       : "note: to suppress this message, pass \"--without-graph_parallel\" to bjam."
       ;
   }
+  else
+  {
+    alias boost_graph_parallel ;
+  }
 }

From c95116f0a1a43c2ae5f7fe4d203e4972a2b04ef1 Mon Sep 17 00:00:00 2001
From: Dmitry Arkhipov <grisumbras@yandex.ru>
Date: Wed, 14 Oct 2026 16:40:20 +0300
Subject: [PATCH 2/2] disable mpich jobs in CI

---
 .github/workflows/ci.yml | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ae3bdae..7e2de48 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,6 +14,8 @@ jobs:
       matrix:
         compiler: [ g++-13, g++-14, clang++-19 ]
         mpi: [ mpich, libopenmpi-dev ]
+        exclude:
+          - mpi: mpich
     steps:
       - uses: actions/checkout@v4
         with: