diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index a900b6352e..89341cfa7b 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -272,8 +272,8 @@ if( NOT NO_OPENAL )
 	endif()
 endif()
 
-set( LLVM_COMPONENTS core support asmparser asmprinter bitreader codegen passes ipo
-	irreader transformutils instrumentation profiledata debuginfocodeview runtimedyld
+set( LLVM_COMPONENTS core support asmparser asmprinter bitreader codegen ipo
+	irreader transformutils instrumentation profiledata runtimedyld
 	object instcombine linker analysis selectiondag scalaropts vectorize executionengine
 	mc mcdisassembler mcparser mcjit target x86asmprinter x86info x86desc x86utils x86codegen )
 
diff --git a/src/r_segs.cpp b/src/r_segs.cpp
index cbff7d6e9b..0f723f9be3 100644
--- a/src/r_segs.cpp
+++ b/src/r_segs.cpp
@@ -1142,7 +1142,7 @@ WallscanSampler::WallscanSampler(int y1, float swal, double yrepeat, fixed_t xof
 		}
 		else
 		{
-			double magnitude = abs(uv_stepd * 2);
+			double magnitude = fabs(uv_stepd * 2);
 			bool magnifying = magnitude < 1.0f;
 
 			int mipmap_offset = 0;