Index: lalapps-6.24.0/src/string/StringSearch.c
===================================================================
--- lalapps-6.24.0.orig/src/string/StringSearch.c
+++ lalapps-6.24.0/src/string/StringSearch.c
@@ -203,7 +203,7 @@ int main(int argc,char *argv[])
   unsigned seg_length;
   StringTemplate strtemplate[MAXTEMPLATES];
   int NTemplates;
-  int NTemplates_fix; /* number of template given by the template bank file */
+  int NTemplates_fix = 0; /* number of template given by the template bank file */
   REAL8 fcutoff_fix[MAXTEMPLATES]; /* high frequency cutoffs given by the template bank file */
   SnglBurst *events=NULL;
   MetadataTable  process;
Index: lalapps-6.24.0/src/pulsar/SFTTools/SFTvalidate.c
===================================================================
--- lalapps-6.24.0.orig/src/pulsar/SFTTools/SFTvalidate.c
+++ lalapps-6.24.0/src/pulsar/SFTTools/SFTvalidate.c
@@ -59,7 +59,7 @@ int main(int argc, char** argv) {
     /* and read successive SFTs blocks from the file and validate CRC
        checksums */
     for (count=0; 1; count++) {
-      struct headertag2 info,lastinfo;
+      struct headertag2 info,lastinfo={};
       int err=0, swapendian, move, j;
       
       err=ReadSFTHeader(fp, &info, NULL, &swapendian, 1);
Index: lalapps-6.24.0/src/pulsar/SFTTools/SFTdumpheader.c
===================================================================
--- lalapps-6.24.0.orig/src/pulsar/SFTTools/SFTdumpheader.c
+++ lalapps-6.24.0/src/pulsar/SFTTools/SFTdumpheader.c
@@ -54,7 +54,7 @@ int main(int argc, char **argv) {
     /* and read successive SFTs blocks from the file and print headers */
     for (count=0; 1; count++) {
 
-      struct headertag2 info,lastinfo;
+      struct headertag2 info,lastinfo={};
       int err=0, swapendian, move;
       char *mycomment;
 
Index: lalapps-6.24.0/src/pulsar/SFTTools/SFTdumpall.c
===================================================================
--- lalapps-6.24.0.orig/src/pulsar/SFTTools/SFTdumpall.c
+++ lalapps-6.24.0/src/pulsar/SFTTools/SFTdumpall.c
@@ -55,7 +55,7 @@ int main(int argc, char **argv) {
     /* and read successive SFTs blocks from the file and print headers */
     for (count=0; 1; count++) {
 
-      struct headertag2 info, lastinfo;
+      struct headertag2 info, lastinfo={};
       int err=0, swapendian, move;
       char *mycomment;
       int whence = (int)ftell(fp);
Index: lalapps-6.24.0/src/pulsar/HoughFstat/HierarchicalSearch.c
===================================================================
--- lalapps-6.24.0.orig/src/pulsar/HoughFstat/HierarchicalSearch.c
+++ lalapps-6.24.0/src/pulsar/HoughFstat/HierarchicalSearch.c
@@ -1270,7 +1270,7 @@ void SetUpSFTs( LALStatus *status,			/**
   REAL8 timebase, tObs, deltaFsft;
   UINT4 k,numSFTby2;
   LIGOTimeGPS tStartGPS, tEndGPS, refTimeGPS, tMidGPS;
-  SFTCatalogSequence catalogSeq;
+  SFTCatalogSequence catalogSeq = {};
 
   REAL8 doppWings, fMin, fMax;
   REAL8 startTime_freqLo, startTime_freqHi;
@@ -1531,7 +1531,7 @@ void ComputeFstatHoughMap(LALStatus *sta
   LIGOTimeGPSVector   *tsMid;
   REAL8Vector *timeDiffV=NULL;
   UINT8Vector hist; /* histogram vector */
-  UINT8Vector histTotal; /* total histogram vector */
+  UINT8Vector histTotal = {}; /* total histogram vector */
   HoughStats stats; /* statistics struct */
   CHAR *fileStats = NULL;
   FILE *fpStats = NULL;