add guard to check sse2 headers

include/cglm-intrin.h

@@ -7,7 +7,7 @@
 
 #ifndef cglm_intrin_h
 #define cglm_intrin_h
-
+#if defined( __SSE__ ) || defined( __SSE2__ )
 #include <xmmintrin.h>
 #include <emmintrin.h>
 
@@ -22,4 +22,5 @@
   _mm_shuffle1_ps(_mm_shuffle_ps(a, b, _MM_SHUFFLE(z0, y0, x0, w0)),          \
                   z1, y1, x1, w1);
 
+#endif
 #endif /* cglm_intrin_h */

include/cglm-mat-simd-avx.h

@@ -7,8 +7,8 @@
 
 #ifndef cglm_mat_simd_avx_h
 #define cglm_mat_simd_avx_h
-
 #ifdef __AVX__
+
 #include "cglm-intrin.h"
 #include <immintrin.h>
 

include/cglm-mat-simd-sse2.h

@@ -7,6 +7,7 @@
 
 #ifndef cglm_mat_sse_h
 #define cglm_mat_sse_h
+#if defined( __SSE__ ) || defined( __SSE2__ )
 
 #include "cglm-intrin.h"
 
@@ -258,4 +259,5 @@ glm_mat4_inv_sse2(mat4 mat, mat4 dest) {
   _mm_store_ps(dest[3], _mm_mul_ps(v3, x0));
 }
 
+#endif
 #endif /* cglm_mat_sse_h */

include/cglm-mat.h

@@ -9,7 +9,7 @@
 #define cglm_mat_h
 
 #include "cglm.h"
-#include "cglm-mat-simd.h"
+#include "cglm-mat-simd-sse2.h"
 #include "cglm-mat-simd-avx.h"
 #include <assert.h>