diff --git a/.clang-format b/.clang-format
index 51fc0aa5..0e44f49b 100644
--- a/.clang-format
+++ b/.clang-format
@@ -18,7 +18,7 @@ AllowShortBlocksOnASingleLine: Empty
 AllowShortCaseLabelsOnASingleLine: false
 AllowShortFunctionsOnASingleLine: All
 AllowShortLambdasOnASingleLine: All
-AllowShortIfStatementsOnASingleLine: Never
+AllowShortIfStatementsOnASingleLine: WithoutElse
 AllowShortLoopsOnASingleLine: false
 AlwaysBreakAfterDefinitionReturnType: None
 AlwaysBreakAfterReturnType: None
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f4221f62..f9abcd5f 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -41,7 +41,7 @@ alp_setup_cmake_project(boost
     CMAKE_ARGUMENTS
         -DBOOST_ENABLE_PYTHON=OFF
         -DBUILD_TESTING=OFF
-        "-DBOOST_INCLUDE_LIBRARIES=graph\;multiprecision\;heap\;format\;logic")
+        "-DBOOST_INCLUDE_LIBRARIES=graph\;multiprecision\;heap\;format\;logic\;asio\;beast")
 find_package(Boost CONFIG REQUIRED)
 
 alp_setup_cmake_project(tbb
@@ -148,6 +148,9 @@ add_library(xatlas STATIC ${xatlas_SOURCE_DIR}/source/xatlas/xatlas.cpp)
 target_include_directories(xatlas SYSTEM PUBLIC ${xatlas_SOURCE_DIR}/source)
 
 if(ALP_BUILD_DAG_BUILDER OR ALP_BUILD_DAG_CONVERT_DEBUG)
+    # Reuse the Eigen3::Eigen target above instead of libigl's Eigen download.
+    alp_add_git_repository(libigl URL https://github.com/libigl/libigl.git COMMITISH v2.6.0)
+
     alp_add_git_repository(rectpack2D URL https://github.com/TeamHypersomnia/rectpack2D.git COMMITISH bbc9d0ec05b9b508f6c781667fec718bf9e78d21)
 
     set(METIS_BUILD_SHARED_LIBS OFF CACHE BOOL "" FORCE)
diff --git a/src/dag_builder/CMakeLists.txt b/src/dag_builder/CMakeLists.txt
index f98259bc..28b082e0 100644
--- a/src/dag_builder/CMakeLists.txt
+++ b/src/dag_builder/CMakeLists.txt
@@ -67,7 +67,7 @@ add_library(dagbuilderlib
 )
 
 target_include_directories(dagbuilderlib PUBLIC ${CMAKE_CURRENT_SOURCE_DIR})
-target_link_libraries(dagbuilderlib PUBLIC terrainlib libassert::assert metis rectpack2D meshoptimizer)
+target_link_libraries(dagbuilderlib PUBLIC terrainlib libassert::assert metis rectpack2D meshoptimizer igl::core)
 
 if(ALP_BUILD_DAG_BUILDER)
     add_executable(dag-builder