Fail travis CI on compiler warnings

.travis.yml

@@ -9,4 +9,9 @@ os:
   - linux
   - osx
 
-script: ./autogen.sh && ./configure && make
+script:
+  - ./autogen.sh
+  # clang might warn about C11 generic selections in isnan()
+  - CFLAGS=-Wno-c11-extensions ./configure --enable-werror
+  - make
+  - CFLAGS=-Wno-c11-extensions make distcheck DISTCHECK_CONFIGURE_FLAGS=--enable-werror

darwin/DarwinProcessList.c

@@ -115,7 +115,6 @@ struct kinfo_proc *ProcessList_getKInfoProcs(size_t *count) {
 }
 
 ProcessList* ProcessList_new(UsersTable* usersTable, Hashtable* pidMatchList, uid_t userId) {
-   size_t len;
    DarwinProcessList* this = xCalloc(1, sizeof(DarwinProcessList));
 
    ProcessList_init(&this->super, Class(Process), usersTable, pidMatchList, userId);

darwin/Platform.c

@@ -263,11 +263,11 @@ char* Platform_getProcessEnv(pid_t pid) {
          mib[0] = CTL_KERN;
          mib[1] = KERN_PROCARGS2;
          mib[2] = pid;
-         size_t bufsz = argmax;
+         bufsz = argmax;
          if (sysctl(mib, 3, buf, &bufsz, 0, 0) == 0) {
             if (bufsz > sizeof(int)) {
                char *p = buf, *endp = buf + bufsz;
-               int argc = *(int*)p;
+               int argc = *(int*)(void*)p;
                p += sizeof(int);
 
                // skip exe

freebsd/FreeBSDProcessList.c

@@ -391,7 +391,7 @@ void ProcessList_goThroughEntries(ProcessList* this) {
    for (int i = 0; i < count; i++) {
       struct kinfo_proc* kproc = &kprocs[i];
       bool preExisting = false;
-      bool isIdleProcess = false;
+      // TODO: bool isIdleProcess = false;
       struct tm date;
       Process* proc = ProcessList_getProcess(this, kproc->ki_pid, &preExisting, (Process_New) FreeBSDProcess_new);
       FreeBSDProcess* fp = (FreeBSDProcess*) proc;
@@ -449,12 +449,15 @@ void ProcessList_goThroughEntries(ProcessList* this) {
       proc->percent_cpu = 100.0 * ((double)kproc->ki_pctcpu / (double)kernelFScale);
       proc->percent_mem = 100.0 * (proc->m_resident * PAGE_SIZE_KB) / (double)(this->totalMem);
 
-      if (proc->percent_cpu > 0.1) {
-         // system idle process should own all CPU time left regardless of CPU count
-         if ( strcmp("idle", kproc->ki_comm) == 0 ) {
-            isIdleProcess = true;
-         }
-      }
+      /*
+       * TODO
+       * if (proc->percent_cpu > 0.1) {
+       *     // system idle process should own all CPU time left regardless of CPU count
+       *     if ( strcmp("idle", kproc->ki_comm) == 0 ) {
+       *         isIdleProcess = true;
+       *     }
+       * }
+       */
 
       proc->priority = kproc->ki_pri.pri_level - PZERO;