disable LeastSquaresSolver for complex scalar type

cpppetsc/test/LeastSquaresSolver_Test.cc

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef AE108_PETSC_COMPLEX
+
 #include "ae108/cpppetsc/LeastSquaresSolver.h"
 #include "ae108/cpppetsc/ParallelComputePolicy.h"
 #include "ae108/cpppetsc/SequentialComputePolicy.h"
@@ -86,3 +88,5 @@ TYPED_TEST(LeastSquaresSolver_Test,
 } // namespace
 } // namespace cpppetsc
 } // namespace ae108
+
+#endif
\ No newline at end of file

solve/src/include/ae108/solve/LeastSquaresSolver.h

@@ -15,6 +15,8 @@
 
 #pragma once
 
+#ifndef AE108_PETSC_COMPLEX
+
 #include "ae108/assembly/AssemblerTypeTraits.h"
 #include "ae108/cpppetsc/LeastSquaresSolver.h"
 #include "ae108/cpppetsc/MeshBoundaryCondition.h"
@@ -260,3 +262,5 @@ LeastSquaresSolver<Assembler>::computeSolution(
 
 } // namespace solve
 } // namespace ae108
+
+#endif
\ No newline at end of file

solve/test/LeastSquaresSolver_Test.cc

@@ -13,6 +13,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+#ifndef AE108_PETSC_COMPLEX
+
 #include "ae108/cpppetsc/ParallelComputePolicy.h"
 #include "ae108/cpppetsc/SequentialComputePolicy.h"
 #include "ae108/cpppetsc/Vector.h"
@@ -95,3 +97,5 @@ TYPED_TEST(LeastSquaresSolver_Test, bc_solve_works) {
 } // namespace
 } // namespace solve
 } // namespace ae108
+
+#endif
\ No newline at end of file