diff --git a/aarch64/corefreq-cli.c b/aarch64/corefreq-cli.c
index b3973101..5993a150 100644
--- a/aarch64/corefreq-cli.c
+++ b/aarch64/corefreq-cli.c
@@ -9285,7 +9285,11 @@ Window *PopUpMessage(ASCII *title, RING_CTRL *pCtrl)
 
 	if (pCtrl->drc < RC_DRIVER_BASE)
 	{
+	    #ifdef __GLIBC__
 		sysMsg = strerror_r(pCtrl->drc, inStr, POPUP_ALLOC);
+	    #else
+		sysMsg = strerror(pCtrl->drc);
+	    #endif
 		switch ( GET_LOCALE() ) {
 		case LOC_FR:	/* Convert the System message to locale */
 			ISO_8859_To_Unicode((ASCII *) sysMsg, (ASCII *) inStr);
diff --git a/aarch64/corefreq-ui.c b/aarch64/corefreq-ui.c
index cd7b2bca..34e40c03 100644
--- a/aarch64/corefreq-ui.c
+++ b/aarch64/corefreq-ui.c
@@ -2225,7 +2225,11 @@ void _LOCALE_IN(void)
 	SysLoc = newlocale(LC_MESSAGES_MASK, "", (locale_t) 0);
 
 	if (SysLoc != NULL) {
+	    #ifdef __GLIBC__
 		const char *s18n = SysLoc->__names[5];
+	    #else
+		const char *s18n = "en_US.UTF-8";
+	    #endif
 		struct LOCALE_LOOKUP *lookUp = LocaleLookUp;
 		while (lookUp->i18n != NULL) {
 			I18N *i18n = lookUp->i18n;
diff --git a/aarch64/corefreq.h b/aarch64/corefreq.h
index e8dc15d3..24b0fedc 100644
--- a/aarch64/corefreq.h
+++ b/aarch64/corefreq.h
@@ -204,11 +204,18 @@ typedef struct
 
 		unsigned long long	Error;
 
+	    #ifdef __GLIBC__
 		struct {
 		     struct random_data data;
 			char		state[128];
 			int		value[2];
 		} Random;
+	    #else
+		struct {
+			char		state[128];
+			int		value[2];
+		} Random;
+	    #endif /* __GLIBC__ */
 
 		struct {
 		unsigned long long	inside,
diff --git a/aarch64/corefreqd.c b/aarch64/corefreqd.c
index ab246f0e..89df6d36 100644
--- a/aarch64/corefreqd.c
+++ b/aarch64/corefreqd.c
@@ -437,8 +437,12 @@ void SliceScheduling(	RO(SHM_STRUCT) *RO(Shm),
 		break;
 	case RAND_SMT:
 		do {
+		  #ifdef __GLIBC__
 		    if (random_r(&RO(Shm)->Cpu[cpu].Slice.Random.data,
 				&RO(Shm)->Cpu[cpu].Slice.Random.value[0]) == 0)
+		  #else
+		    RO(Shm)->Cpu[cpu].Slice.Random.value[0] = (int) random();
+		  #endif /* __GLIBC__ */
 		    {
 			seek = RO(Shm)->Cpu[cpu].Slice.Random.value[0]
 				% RO(Shm)->Proc.CPU.Count;
@@ -1563,7 +1567,11 @@ REASON_CODE Core_Manager(REF *Ref)
 	unsigned int		cpu = 0;
 
 	pthread_t tid = pthread_self();
+    #ifdef __GLIBC__
 	RO(Shm)->App.Svr = tid;
+    #else
+	RO(Shm)->App.Svr = getpid();
+    #endif
 
   if (ServerFollowService(&localService, &RO(Shm)->Proc.Service, tid) == 0) {
 	pthread_setname_np(tid, "corefreqd-pmgr");
@@ -1977,11 +1985,14 @@ REASON_CODE Child_Manager(REF *Ref)
 			:
 			:
 		);
+	    #ifdef __GLIBC__
 		initstate_r(	seed32,
 				RO(Shm)->Cpu[cpu].Slice.Random.state,
 				sizeof(RO(Shm)->Cpu[cpu].Slice.Random.state),
 				&RO(Shm)->Cpu[cpu].Slice.Random.data );
-
+	    #else
+		initstate(seed32, RO(Shm)->Cpu[cpu].Slice.Random.state, 128);
+	    #endif
 		if (!Arg[cpu].TID) {
 			/*	Add this child thread.			*/
 			Arg[cpu].Ref  = Ref;
diff --git a/aarch64/corefreqm.c b/aarch64/corefreqm.c
index d4bae3cb..a7445664 100644
--- a/aarch64/corefreqm.c
+++ b/aarch64/corefreqm.c
@@ -234,11 +234,15 @@ void Slice_Monte_Carlo(RO(SHM_STRUCT) *RO(Shm), RW(SHM_STRUCT) *RW(Shm),
     {
 	double X, Y, Z;
 	UNUSED(arg);
-
+      #ifdef __GLIBC__
 	if (!random_r(	&RO(Shm)->Cpu[cpu].Slice.Random.data,
 			&RO(Shm)->Cpu[cpu].Slice.Random.value[0] )
 	 && !random_r(	&RO(Shm)->Cpu[cpu].Slice.Random.data,
 			&RO(Shm)->Cpu[cpu].Slice.Random.value[1] ))
+      #else
+	RO(Shm)->Cpu[cpu].Slice.Random.value[0] = (int) random();
+	RO(Shm)->Cpu[cpu].Slice.Random.value[1] = (int) random();
+      #endif /* __GLIBC__ */
 	{
 		X = (double) RO(Shm)->Cpu[cpu].Slice.Random.value[0] / RAND_MAX;
 		Y = (double) RO(Shm)->Cpu[cpu].Slice.Random.value[1] / RAND_MAX;