Disable Eigen tests/docs during FetchContent build

astomodynamics · astomodynamics · commit 8c0a7b39f924 · 2026-04-04T18:29:51.000-04:00
Eigen's FetchContent was configuring its entire test suite
(CHOLMOD, UMFPACK, CUDA, Qt, Boost, etc.) causing slow builds
and failures in isolated CI environments like manylinux.
diff --git a/CMakeLists.txt b/CMakeLists.txt
@@ -72,6 +72,9 @@ if(NOT Eigen3_FOUND)
     GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git
     GIT_TAG 3.4.0
   )
+  set(BUILD_TESTING OFF CACHE BOOL "" FORCE)
+  set(EIGEN_BUILD_DOC OFF CACHE BOOL "" FORCE)
+  set(EIGEN_BUILD_TESTING OFF CACHE BOOL "" FORCE)
   FetchContent_MakeAvailable(eigen)
 
   # Point Eigen3_DIR to the build directory where Eigen3Config.cmake is generated

Original file line number	Diff line number	Diff line change
`@@ -72,6 +72,9 @@ if(NOT Eigen3_FOUND)`
`72`	`72`	`GIT_REPOSITORY https://gitlab.com/libeigen/eigen.git`
`73`	`73`	`GIT_TAG 3.4.0`
`74`	`74`	`)`
	`75`	`+ set(BUILD_TESTING OFF CACHE BOOL "" FORCE)`
	`76`	`+ set(EIGEN_BUILD_DOC OFF CACHE BOOL "" FORCE)`
	`77`	`+ set(EIGEN_BUILD_TESTING OFF CACHE BOOL "" FORCE)`
`75`	`78`	`FetchContent_MakeAvailable(eigen)`
`76`	`79`
`77`	`80`	`# Point Eigen3_DIR to the build directory where Eigen3Config.cmake is generated`