diff --git a/cfg/gnu.cfg b/cfg/gnu.cfg
index a1ce84951..bdf096e77 100644
--- a/cfg/gnu.cfg
+++ b/cfg/gnu.cfg
@@ -38,6 +38,7 @@
   <!-- char ** backtrace_symbols (void *const *buffer, int size) -->
   <function name="backtrace_symbols">
     <noreturn>false</noreturn>
+    <use-retval/>
     <arg nr="1">
       <not-null/>
       <not-uninit/>
@@ -108,6 +109,7 @@
   <!-- int ecvt_r (double value, int ndigit, int *decpt, int *neg, char *buf, size_t len); -->
   <function name="ecvt_r">
     <noreturn>false</noreturn>
+    <pure/>
     <arg nr="1">
       <not-uninit/>
     </arg>
@@ -128,6 +130,7 @@
   <!-- int fcvt_r (double value, int ndigit, int *decpt, int *neg, char *buf, size_t len); -->
   <function name="fcvt_r">
     <noreturn>false</noreturn>
+    <pure/>
     <arg nr="1">
       <not-uninit/>
     </arg>
@@ -148,6 +151,7 @@
   <!-- int qecvt_r (long double value, int ndigit, int *decpt, int *neg, char *buf, size_t len); -->
   <function name="qecvt_r">
     <noreturn>false</noreturn>
+    <pure/>
     <arg nr="1">
       <not-uninit/>
     </arg>
@@ -168,6 +172,7 @@
   <!-- int qfcvt_r (long double value, int ndigit, int *decpt, int *neg, char *buf, size_t len); -->
   <function name="qfcvt_r">
     <noreturn>false</noreturn>
+    <pure/>
     <arg nr="1">
       <not-uninit/>
     </arg>
@@ -191,6 +196,7 @@
     <use-retval/>
     <noreturn>false</noreturn>
     <leak-ignore/>
+    <pure/>
     <arg nr="1">
       <not-null/>
       <not-uninit/>
diff --git a/cfg/posix.cfg b/cfg/posix.cfg
index c349d8d74..c4756e299 100644
--- a/cfg/posix.cfg
+++ b/cfg/posix.cfg
@@ -349,6 +349,18 @@
     </arg>
     <leak-ignore/>
   </function>
+  <!-- void seekdir(DIR *dirp, long loc); -->
+  <function name="seekdir">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-null/>
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+    <leak-ignore/>
+  </function>
   <function name="rand_r">
     <noreturn>false</noreturn>
     <leak-ignore/>
@@ -666,6 +678,45 @@
       <not-uninit/>
     </arg>
   </function>
+  <!-- int setpgid(pid_t pid, pid_t pgid); -->
+  <function name="setpgid">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- pid_t setpgrp(void); -->
+  <function name="setpgrp">
+    <noreturn>false</noreturn>
+  </function>
+  <!-- int setregid(gid_t rgid, gid_t egid); -->
+  <function name="setregid">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- int setreuid(uid_t ruid, uid_t euid); -->
+  <function name="setreuid">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+    </arg>
+    <arg nr="2">
+      <not-uninit/>
+    </arg>
+  </function>
+  <!-- pid_t setsid(void); -->
+  <function name="setsid">
+    <noreturn>false</noreturn>
+    <use-retval/>
+  </function>
   <memory>
     <dealloc>free</dealloc>
     <alloc init="true">strdup</alloc>
@@ -1045,4 +1096,12 @@
       <not-null/>
     </arg>
   </function>
+  <!-- void setkey(const char *key); -->
+  <function name="setkey">
+    <noreturn>false</noreturn>
+    <arg nr="1">
+      <not-uninit/>
+      <not-null/>
+    </arg>
+  </function>
 </def>
diff --git a/cli/cppcheckexecutor.cpp b/cli/cppcheckexecutor.cpp
index 33804a67a..225900668 100644
--- a/cli/cppcheckexecutor.cpp
+++ b/cli/cppcheckexecutor.cpp
@@ -245,10 +245,6 @@ static const char *signal_name(int signo)
     return "";
 }
 
-
-// 32 vs. 64bit
-#define ADDRESSDISPLAYLENGTH ((sizeof(long)==8)?12:8)
-
 /*
  * Try to print the callstack.
  * That is very sensitive to the operating system, hardware, compiler and runtime!
@@ -257,6 +253,8 @@ static const char *signal_name(int signo)
 static void print_stacktrace(FILE* f, bool demangling, int maxdepth)
 {
 #if defined(USE_UNIX_BACKTRACE_SUPPORT)
+// 32 vs. 64bit
+#define ADDRESSDISPLAYLENGTH ((sizeof(long)==8)?12:8)
     void *array[32]= {0}; // the less resources the better...
     const int depth = backtrace(array, (int)GetArrayLength(array));
     const int offset=3; // the first two entries are simply within our own exception handling code, third is within libc
@@ -264,7 +262,6 @@ static void print_stacktrace(FILE* f, bool demangling, int maxdepth)
         maxdepth=depth+offset;
     else
         maxdepth+=offset;
-    printf("maxdepth=%d\n", maxdepth);
     char **symbolstrings = backtrace_symbols(array, depth);
     if (symbolstrings) {
         fputs("Callstack:\n", f);
@@ -308,6 +305,7 @@ static void print_stacktrace(FILE* f, bool demangling, int maxdepth)
     } else {
         fputs("Callstack could not be obtained\n", f);
     }
+#undef ADDRESSDISPLAYLENGTH
 #endif
 }
 
@@ -617,7 +615,7 @@ static void writeMemoryErrorDetails(FILE* f, PEXCEPTION_POINTERS ex, const char*
 }
 
 /*
- * Any evaluation of the information about the exception needs to be done here!
+ * Any evaluation of the exception needs to be done here!
  */
 static int filterException(int code, PEXCEPTION_POINTERS ex)
 {
@@ -714,7 +712,7 @@ int CppCheckExecutor::check_wrapper(CppCheck& cppcheck, int argc, const char* co
     __try {
         return check_internal(cppcheck, argc, argv);
     } __except (filterException(GetExceptionCode(), GetExceptionInformation())) {
-        // reporting to stdout may not be helpful within a GUI application..
+        // reporting to stdout may not be helpful within a GUI application...
         fputs("Please report this to the cppcheck developers!\n", f);
         return -1;
     }