Modified the main CMakeLists.txt to set the compiler flags for the C++...

Modified the main CMakeLists.txt to set the compiler flags for the C++ compiler instead of the C compiler.
Solved some compilation warnings that appeared.

CMakeLists.txt

@@ -18,8 +18,8 @@ IF (NOT CMAKE_BUILD_TYPE)
  SET(CMAKE_BUILD_TYPE "DEBUG") 
 ENDIF (NOT CMAKE_BUILD_TYPE)
 
-SET(CMAKE_C_FLAGS_DEBUG "-g -Wall -D_REENTRANT")
-SET(CMAKE_C_FLAGS_RELEASE "-O3 -D_REENTRANT")
+SET(CMAKE_CXX_FLAGS_DEBUG "-g -Wall -D_REENTRANT")
+SET(CMAKE_CXX_FLAGS_RELEASE "-O3 -D_REENTRANT")
 
 ADD_SUBDIRECTORY(src)
 

src/asterx1_gps.cpp

@@ -499,9 +499,8 @@ int CasteRx1::synchronizeHeader(const unsigned char *mark, int msecTimeOut, unsi
 {
 	unsigned char cc; 
 	string readMark, targetMark;
-	bool endLoop = false;
 	int retValue = BASIC_SUCCESS;
-	int ii=0;
+	unsigned int ii=0;
 
 	//sets targetMark
 	targetMark.append((const char*)mark,markSize);
@@ -528,7 +527,6 @@ int CasteRx1::synchronizeHeader(const unsigned char *mark, int msecTimeOut, unsi
 int CasteRx1::sendCommand(const string & cmnd)
 {
 	int retValue;
-	int nn;
 	unsigned char replyBuffer[200];
 	string receivedReply, expectedReply;