Build fixes.

linux/LinuxProcessList.c

@@ -572,13 +572,12 @@ static bool LinuxProcessList_processEntries(ProcessList* this, const char* dirna
 }
 
 static inline void LinuxProcessList_scanMemoryInfo(ProcessList* this) {
+   unsigned long long int swapFree = 0;
+
    FILE* file = fopen(PROCMEMINFOFILE, "r");
    if (file == NULL) {
       CRT_fatalError("Cannot open " PROCMEMINFOFILE);
    }
-   int cpus = this->cpuCount;
-   assert(cpus > 0);
-   {
    char buffer[128];
    while (fgets(buffer, 128, file)) {
 
@@ -607,18 +606,21 @@ static inline void LinuxProcessList_scanMemoryInfo(ProcessList* this) {
          break;
       }
    }
-   }
 
    this->usedMem = this->totalMem - this->freeMem;
    this->usedSwap = this->totalSwap - swapFree;
    fclose(file);
 }
 
-static inline double LinuxProcessList_readCPUTime(ProcessList* this) {
+static inline double LinuxProcessList_scanCPUTime(ProcessList* this) {
+   unsigned long long int usertime, nicetime, systemtime, idletime;
+
    FILE* file = fopen(PROCSTATFILE, "r");
    if (file == NULL) {
       CRT_fatalError("Cannot open " PROCSTATFILE);
    }
+   int cpus = this->cpuCount;
+   assert(cpus > 0);
    for (int i = 0; i <= cpus; i++) {
       char buffer[256];
       int cpuid;
@@ -687,12 +689,10 @@ static inline double LinuxProcessList_readCPUTime(ProcessList* this) {
 }
 
 void ProcessList_scan(ProcessList* this) {
-   unsigned long long int usertime, nicetime, systemtime, idletime;
-   unsigned long long int swapFree = 0;
 
    LinuxProcessList_scanMemoryInfo(this);
    
-   LinuxProcessList_scanCPUTime(this);
+   double period = LinuxProcessList_scanCPUTime(this);
 
    // mark all process as "dirty"
    for (int i = 0; i < Vector_size(this->processes); i++) {