improve portability (esp. musl)

cf. Github PR#56

Author: lyonel

src/core/abi.cc

@@ -20,9 +20,7 @@ __ID("@(#) $Id: mem.cc 1352 2006-05-27 23:54:13Z ezix $");
 bool scan_abi(hwNode & system)
 {
   // are we compiled as 32- or 64-bit process ?
-  long sc = sysconf(LONG_BIT);
-  if(sc==-1) sc = sysconf(_SC_LONG_BIT);
-  if(sc!=-1) system.setWidth(sc);
+  system.setWidth(LONG_BIT);
 
   pushd(PROC_SYS);
 

src/core/sysfs.cc

@@ -16,6 +16,7 @@
 #include <sys/stat.h>
 #include <sys/types.h>
 #include <sys/mount.h>
+#include <libgen.h>
 
 
 __ID("@(#) $Id$");
@@ -103,7 +104,7 @@ static string sysfs_getbustype(const string & path)
   {
     string devname =
       string(fs.path + "/bus/") + string(namelist[i]->d_name) +
-      "/devices/" + basename(path.c_str());
+      "/devices/" + basename(const_cast<char*>(path.c_str()));
 
     if (samefile(devname, path))
     {
@@ -151,7 +152,7 @@ static string sysfstobusinfo(const string & path)
 
   if (bustype == "usb")
   {
-    string name = basename(path.c_str());
+    string name = basename(const_cast<char*>(path.c_str()));
     if (matches(name, "^[0-9]+-[0-9]+(\\.[0-9]+)*:[0-9]+\\.[0-9]+$"))
     {
       size_t colon = name.rfind(":");
@@ -162,18 +163,18 @@ static string sysfstobusinfo(const string & path)
 
   if (bustype == "virtio")
   {
-    string name = basename(path.c_str());
+    string name = basename(const_cast<char*>(path.c_str()));
     if (name.compare(0, 6, "virtio") == 0)
       return "virtio@" + name.substr(6);
     else
       return "virtio@" + name;
   }
 
   if (bustype == "vio")
-    return string("vio@") + basename(path.c_str());
+    return string("vio@") + basename(const_cast<char*>(path.c_str()));
 
   if (bustype == "ccw")
-    return string("ccw@") + basename(path.c_str());
+    return string("ccw@") + basename(const_cast<char*>(path.c_str()));
 
   if (bustype == "ccwgroup")
   {
@@ -251,7 +252,7 @@ string entry::driver() const
   string driverlink = This->devpath + "/driver";
   if (!exists(driverlink))
     return "";
-  return basename(readlink(driverlink).c_str());
+  return basename(const_cast<char*>(readlink(driverlink).c_str()));
 }
 
 
@@ -339,7 +340,7 @@ string entry::name_in_class(const string & classname) const
 
 string entry::name() const
 {
-  return basename(This->devpath.c_str());
+  return basename(const_cast<char*>(This->devpath.c_str()));
 }
 
 
@@ -351,17 +352,17 @@ entry entry::parent() const
 
 string entry::classname() const
 {
-  return basename(dirname(This->devpath).c_str());
+  return basename(const_cast<char*>(dirname(This->devpath).c_str()));
 }
 
 string entry::subsystem() const
 {
-  return basename(realpath(This->devpath+"/subsystem").c_str());
+  return basename(const_cast<char*>(realpath(This->devpath+"/subsystem").c_str()));
 }
 
 bool entry::isvirtual() const
 {
-  return string(basename(dirname(dirname(This->devpath)).c_str())) == "virtual";
+  return string(basename(const_cast<char*>(dirname(dirname(This->devpath)).c_str()))) == "virtual";
 }
 
 string entry::string_attr(const string & name, const string & def) const