diff --git a/src/libm/dispscalar.c.org b/src/libm/dispscalar.c.org
index 461e2668..3b36d1b1 100644
--- a/src/libm/dispscalar.c.org
+++ b/src/libm/dispscalar.c.org
@@ -15,8 +15,8 @@
 
 #include "dispatcher.h"
 
-NOEXPORT double sleef_cpuidtmp2;
-static void tryFMA() { sleef_cpuidtmp2 = Sleef_sind1_u10purecfma(sleef_cpuidtmp2); }
+NOEXPORT double sleef_cpuid_SCALFMA;
+static void tryFMA() { sleef_cpuid_SCALFMA = Sleef_sind1_u10purecfma(sleef_cpuid_SCALFMA); }
 
 #define SUBST_IF_EXT1(funcExt1) if (cpuSupportsExt(tryFMA)) p = funcExt1;
 #define SUBST_IF_EXT2(funcExt2)
diff --git a/src/libm/tryvsx3.c b/src/libm/tryvsx3.c
index 34d636c4..b53c750b 100644
--- a/src/libm/tryvsx3.c
+++ b/src/libm/tryvsx3.c
@@ -1,8 +1,8 @@
 #include <altivec.h>
 
-__vector double sleef_cpuidtmp0;
-__vector unsigned long long sleef_cpuidtmp1, sleef_cpuidtmp2;
+__vector double sleef_cpuid_VSX0;
+__vector unsigned long long sleef_cpuid_VSX1, sleef_cpuid_VSX3;
 
 void sleef_tryVSX3() {
-  sleef_cpuidtmp0 = vec_insert_exp(sleef_cpuidtmp1, sleef_cpuidtmp2);
+  sleef_cpuid_VSX0 = vec_insert_exp(sleef_cpuid_VSX1, sleef_cpuid_VSX3);
 }
diff --git a/src/libm/tryvxe2.c b/src/libm/tryvxe2.c
index 21c35ec0..b4a73a9f 100644
--- a/src/libm/tryvxe2.c
+++ b/src/libm/tryvxe2.c
@@ -1,8 +1,8 @@
 #include <vecintrin.h>
 
-__vector float sleef_cpuidtmp0;
-__vector int sleef_cpuidtmp1;
+__vector float sleef_cpuid_VXE2;
+__vector int sleef_cpuid_VXE1;
 
 void sleef_tryVXE2() {
-  sleef_cpuidtmp0 = vec_float(sleef_cpuidtmp1);
+  sleef_cpuid_VXE2 = vec_float(sleef_cpuid_VXE1);
 }
diff --git a/src/quad/qdispscalar.c.org b/src/quad/qdispscalar.c.org
index 0c153407..81b26c9e 100644
--- a/src/quad/qdispscalar.c.org
+++ b/src/quad/qdispscalar.c.org
@@ -15,8 +15,8 @@
 
 #include "qdispatcher.h"
 
-NOEXPORT Sleef_quad sleef_cpuidtmp0;
-static void tryFMA() { sleef_cpuidtmp0 = Sleef_sinq1_u10purecfma(sleef_cpuidtmp0); }
+NOEXPORT Sleef_quad sleef_cpuid_QUADFMA_0;
+static void tryFMA() { sleef_cpuid_QUADFMA_0 = Sleef_sinq1_u10purecfma(sleef_cpuid_QUADFMA_0); }
 
 #define SUBST_IF_EXT1(funcExt1) if (cpuSupportsExt(tryFMA)) p = funcExt1;
 
diff --git a/src/quad/qdispx2.c.org b/src/quad/qdispx2.c.org
index 449df993..6e382951 100644
--- a/src/quad/qdispx2.c.org
+++ b/src/quad/qdispx2.c.org
@@ -15,20 +15,20 @@
 
 #include "qdispatcher.h"
 
-NOEXPORT Sleef_quadx2 sleef_cpuidtmp1;
+NOEXPORT Sleef_quadx2 sleef_cpuid_EXT;
 
 #ifdef ENABLE_AVX2
-static void tryEXT1() { sleef_cpuidtmp1 = Sleef_sinq2_u10avx2128(sleef_cpuidtmp1); }
+static void tryEXT1() { sleef_cpuid_EXT = Sleef_sinq2_u10avx2128(sleef_cpuid_EXT); }
 #define SUBST_IF_EXT1(funcExt1) if (cpuSupportsExt(tryEXT1)) p = funcExt1;
 #endif
 
 #ifdef ENABLE_VSX3
-static void tryEXT1() { sleef_cpuidtmp1 = Sleef_sinq2_u10vsx3(sleef_cpuidtmp1); }
+static void tryEXT1() { sleef_cpuid_EXT = Sleef_sinq2_u10vsx3(sleef_cpuid_EXT); }
 #define SUBST_IF_EXT1(funcExt1) if (cpuSupportsExt(tryEXT1)) p = funcExt1;
 #endif
 
 #ifdef ENABLE_VXE2
-static void tryEXT1() { sleef_cpuidtmp1 = Sleef_sinq2_u10vxe2(sleef_cpuidtmp1); }
+static void tryEXT1() { sleef_cpuid_EXT = Sleef_sinq2_u10vxe2(sleef_cpuid_EXT); }
 #define SUBST_IF_EXT1(funcExt1) if (cpuSupportsExt(tryEXT1)) p = funcExt1;
 #endif