diff --git a/CMakeLists.txt b/CMakeLists.txt
index f385a13b..81fea159 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -84,7 +84,7 @@ endif()
 
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
 	add_definitions(-Weverything -Wpedantic -Wno-c++98-compat -Wno-c++98-compat-pedantic -Wno-padded -Wno-documentation -Wno-gnu-anonymous-struct -Wno-nested-anon-types)
-	add_definitions(-Wno-sign-conversion -Wno-unused-variable -Wno-missing-prototypes -Wno-unreachable-code -Wno-missing-variable-declarations -Wno-sign-compare)
+	add_definitions(-Wno-sign-conversion -Wno-unused-variable -Wno-missing-prototypes -Wno-unreachable-code -Wno-missing-variable-declarations -Wno-sign-compare -Wno-double-promotion)
 endif()
 
 option(GLM_TEST_ENABLE_LANG_EXTENSIONS "Enable language extensions" OFF)
diff --git a/test/gtx/gtx_io.cpp b/test/gtx/gtx_io.cpp
index f28b464b..a06d1cf6 100644
--- a/test/gtx/gtx_io.cpp
+++ b/test/gtx/gtx_io.cpp
@@ -30,7 +30,7 @@ namespace
 	}
 
 	template<typename U, glm::precision P, typename T, typename CTy, typename CTr>
-	std::basic_string<CTy> type_name(std::basic_ostream<CTy,CTr>& os, T const&)
+	std::basic_string<CTy> type_name(std::basic_ostream<CTy,CTr>&, T const&)
 	{
 		std::basic_ostringstream<CTy,CTr> ostr;
 
diff --git a/test/gtx/gtx_matrix_factorisation.cpp b/test/gtx/gtx_matrix_factorisation.cpp
index 40e56e4b..d2522f58 100644
--- a/test/gtx/gtx_matrix_factorisation.cpp
+++ b/test/gtx/gtx_matrix_factorisation.cpp
@@ -19,7 +19,7 @@ int test_qr(matType<C, R, T, P> m)
 
 	for (glm::length_t i = 0; i < C; i++)
 	for (glm::length_t j = 0; j < R; j++)
-		Error += std::abs(err[i][j]) > epsilon ? 1 : 0;
+		Error += glm::abs(err[i][j]) > epsilon ? 1 : 0;
 
 	//Test if the columns of q are orthonormal
 	for (glm::length_t i = 0; i < (C < R ? C : R); i++)
@@ -27,7 +27,7 @@ int test_qr(matType<C, R, T, P> m)
 		Error += (length(q[i]) - 1) > epsilon ? 1 : 0;
 
 		for (glm::length_t j = 0; j<i; j++)
-			Error += std::abs(dot(q[i], q[j])) > epsilon ? 1 : 0;
+			Error += glm::abs(dot(q[i], q[j])) > epsilon ? 1 : 0;
 	}
 
 	//Test if the matrix r is upper triangular
@@ -54,7 +54,7 @@ int test_rq(matType<C, R, T, P> m)
 
 	for (glm::length_t i = 0; i < C; i++)
 	for (glm::length_t j = 0; j < R; j++)
-		Error += std::abs(err[i][j]) > epsilon ? 1 : 0;
+		Error += glm::abs(err[i][j]) > epsilon ? 1 : 0;
 
 	//Test if the rows of q are orthonormal
 	matType<(C < R ? C : R), C, T, P> tq = transpose(q);
@@ -64,7 +64,7 @@ int test_rq(matType<C, R, T, P> m)
 		Error += (length(tq[i]) - 1) > epsilon ? 1 : 0;
 
 		for (glm::length_t j = 0; j<i; j++)
-			Error += std::abs(dot(tq[i], tq[j])) > epsilon ? 1 : 0;
+			Error += glm::abs(dot(tq[i], tq[j])) > epsilon ? 1 : 0;
 	}
 
 	//Test if the matrix r is upper triangular