diff --git a/package/liquid-dsp/liquid-dsp.mk b/package/liquid-dsp/liquid-dsp.mk
index 98b23a5233..8bb8d54f4c 100644
--- a/package/liquid-dsp/liquid-dsp.mk
+++ b/package/liquid-dsp/liquid-dsp.mk
@@ -11,6 +11,16 @@ LIQUID_DSP_LICENSE_FILES = LICENSE
 LIQUID_DSP_INSTALL_STAGING = YES
 LIQUID_DSP_AUTORECONF = YES
 
+LIQUID_DSP_CONF_ENV = \
+	ax_cv_have_mmx_ext=$(if $(BR2_X86_CPU_HAS_MMX),yes,no) \
+	ax_cv_have_sse_ext=$(if $(BR2_X86_CPU_HAS_SSE),yes,no) \
+	ax_cv_have_sse2_ext=$(if $(BR2_X86_CPU_HAS_SSE2),yes,no) \
+	ax_cv_have_sse3_ext=$(if $(BR2_X86_CPU_HAS_SSE3),yes,no) \
+	ax_cv_have_ssse3_ext=$(if $(BR2_X86_CPU_HAS_SSSE3),yes,no) \
+	ax_cv_have_sse41_ext=$(if $(BR2_X86_CPU_HAS_SSE4),yes,no) \
+	ax_cv_have_sse42_ext=$(if $(BR2_X86_CPU_HAS_SSE42),yes,no) \
+	ax_cv_have_avx_ext=$(if $(BR2_X86_CPU_HAS_AVX),yes,no)
+
 LIQUID_DSP_CFLAGS = $(TARGET_CFLAGS)
 LIQUID_DSP_LDFLAGS = $(TARGET_LDFLAGS)