diff --git a/cmake/bob.cmake b/cmake/bob.cmake
index bbe6bc822..e7f7b7fc8 100644
--- a/cmake/bob.cmake
+++ b/cmake/bob.cmake
@@ -58,10 +58,7 @@ function(bob_begin_cxx_flags)
   endif()
   if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")
     if (${PROJECT_NAME}_CXX_WARNINGS)
-      set(FLAGS "${FLAGS} -Werror -Weverything")
-      set(FLAGS "${FLAGS} -Wno-padded")
-      set(FLAGS "${FLAGS} -Wno-float-equal")
-      set(FLAGS "${FLAGS} -Wno-weak-template-vtables")
+      set(FLAGS "${FLAGS} -Werror -Wall -Wextra")
     endif()
   elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
     if (${PROJECT_NAME}_CXX_WARNINGS)
diff --git a/ma/maFaceSplit.h b/ma/maFaceSplit.h
index e1c7e4a35..b69f8bb59 100644
--- a/ma/maFaceSplit.h
+++ b/ma/maFaceSplit.h
@@ -41,7 +41,6 @@ class FaceSplit
     Adapt* getAdapt() {return adapter;}
   private:
     Adapt* adapter;
-    bool shouldCollect[4];
     EntityArray toSplit[4];
     apf::DynamicArray<EntityArray> newEntities[4];
 };
diff --git a/phasta/phBubble.cc b/phasta/phBubble.cc
index 2f89c28f4..6628d544e 100644
--- a/phasta/phBubble.cc
+++ b/phasta/phBubble.cc
@@ -22,7 +22,7 @@ void readBubbles(Bubbles& bubbles, std::string bubbleFileName)
   FILE *filebubble;
   Bubble readbubble;
 
-  sprintf(bubblefname,bubbleFileName.c_str());
+  sprintf(bubblefname, "%s", bubbleFileName.c_str());
   if (!PCU_Comm_Self())
     printf("reading bubbles info from %s\n",bubblefname);
 
diff --git a/phasta/phRestart.cc b/phasta/phRestart.cc
index 813cfc6c3..a52187136 100644
--- a/phasta/phRestart.cc
+++ b/phasta/phRestart.cc
@@ -381,7 +381,7 @@ void readAndAttachFields(Input& in, apf::Mesh* m) {
   }
   int swap = ph_should_swap(f);
   /* stops when ph_read_field returns 0 */
-  while( readAndAttachField(in,f,m,swap) );
+  while( readAndAttachField(in,f,m,swap) ) {}
   PHASTAIO_CLOSETIME(fclose(f);)
   double t1 = PCU_Time();
   if (!PCU_Comm_Self())
diff --git a/phasta/phiotimer.cc b/phasta/phiotimer.cc
index 6916ab331..a0bc29932 100644
--- a/phasta/phiotimer.cc
+++ b/phasta/phiotimer.cc
@@ -142,7 +142,7 @@ static void printMinMaxAvgSzt(const char* key, size_t v) {
   double avg = ((double)tot)/PCU_Comm_Peers();
   if(!PCU_Comm_Self())
     fprintf(stderr, "%s_%s min max avg %" PRIu64 " %" PRIu64 " %f\n",
-        getFileName(), key, min, max, avg);
+        getFileName(), key, (long long)min, (long long)max, avg);
 }
 
 static void printMinMaxAvgDbl(const char* key, double v) {
@@ -214,7 +214,8 @@ void phastaio_printStats() {
     usleep(us);
     phastaio_time(&t1);
     elapsed = phastaio_time_diff(&t0,&t1);
-    fprintf(stderr, "%" PRIu64 " us measured as %" PRIu64 " us\n", us, elapsed);
+    fprintf(stderr, "%" PRIu64 " us measured as %" PRIu64 " us\n",
+        (long long)us, (long long)elapsed);
   }
   for(int chefFile=0; chefFile<NUM_PHASTAIO_MODES; chefFile++) {
     size_t totalus = 0;