Fix building with C++14, which errors out due to bool -> T* conversions
and changed semantics caught by -Werror=terminate.

See also: https://bugs.gentoo.org/show_bug.cgi?id=594180
Patch partially taken from: https://projects.coin-or.org/OS/changeset/5137/

--- a/src/OSCommonInterfaces/OSInstance.cpp
+++ b/src/OSCommonInterfaces/OSInstance.cpp
@@ -165,6 +165,9 @@
 }
 
 OSInstance::~OSInstance()
+#if __cplusplus >= 201103L
+    noexcept(false)
+#endif
 {
     std::ostringstream outStr;
 
--- a/src/OSCommonInterfaces/OSInstance.h
+++ b/src/OSCommonInterfaces/OSInstance.h
@@ -2267,7 +2267,11 @@
     OSInstance();
 
     /** The OSInstance class destructor */
-    ~OSInstance();
+    ~OSInstance()
+#if __cplusplus >= 201103L
+    noexcept(false)
+#endif
+    ;
 
     /** the instanceHeader is implemented as a general file header object 
      *  to allow sharing of classes between schemas 
--- a/src/OSCommonInterfaces/OSMatrix.cpp
+++ b/src/OSCommonInterfaces/OSMatrix.cpp
@@ -2297,7 +2297,7 @@
 
     if (!processBlocks(rowPartition, rowPartitionSize,
                        colPartition, colPartitionSize, false, symmetry))
-       return false;
+       return NULL;
     return ExpandedMatrixByBlocks.back();
 }// end of MatrixType::getBlocks
 
--- a/src/OSParsers/OSParseosil.tab.cpp
+++ b/src/OSParsers/OSParseosil.tab.cpp
@@ -180,7 +180,7 @@
 
 #define GETATTRIBUTETEXT  	\
 	for(; ISWHITESPACE( *ch) || isnewline( *ch, osillineno); ch++ ) ; \
-	if( *ch != '=') {  osilerror_wrapper( ch, osillineno, "found an attribute not defined"); return false;}  \
+	if( *ch != '=') {  osilerror_wrapper( ch, osillineno, "found an attribute not defined"); return NULL;}  \
 	ch++; \
 	for(; ISWHITESPACE( *ch) || isnewline( *ch, osillineno); ch++ ) ;	\
 	if(*ch == '\"'){ \
@@ -196,7 +196,7 @@
 	        *p = ch; \
 	        for( ; *ch != '\''; ch++); \
 	    } \
-	    else {  osilerror_wrapper( ch, osillineno,"missing quote on attribute"); return false;} \
+	    else {  osilerror_wrapper( ch, osillineno,"missing quote on attribute"); return NULL;} \
 	}\
 	numChar = ch - *p; \
 	attText = new char[numChar + 1]; \
@@ -11070,7 +11070,7 @@
     // eat the white space
     for( ; ISWHITESPACE( *ch) || isnewline( *ch, osillineno); ch++ ) ;
     for(i = 0; sizeOf[i]  == *ch; i++, ch++);
-    if(i != 6) {  osilerror_wrapper( ch,osillineno,"incorrect sizeOf attribute in <base64BinaryData> element"); return false;}    
+    if(i != 6) {  osilerror_wrapper( ch,osillineno,"incorrect sizeOf attribute in <base64BinaryData> element"); return NULL;}    
     // ch should be pointing to the first character after sizeOf
     GETATTRIBUTETEXT;
     ch++;
@@ -11080,7 +11080,7 @@
     // eat the white space
     for( ; ISWHITESPACE( *ch) || isnewline( *ch, osillineno); ch++ ) ;
     // better have an > sign or not valid
-    if(*ch != '>' ) {  osilerror_wrapper( ch,osillineno,"<base64BinaryData> element does not have a proper closing >"); return false;}
+    if(*ch != '>' ) {  osilerror_wrapper( ch,osillineno,"<base64BinaryData> element does not have a proper closing >"); return NULL;}
     ch++;
     // we are now pointing start of the data
     const char *b64textstart = ch;
@@ -11089,7 +11089,7 @@
     const char *b64textend = ch;
     // we should be pointing to </base64BinaryData>
     for(i = 0; endBase64BinaryData[i]  == *ch; i++, ch++);
-    if(i != 18) { osilerror_wrapper( ch,osillineno," problem with <base64BinaryData> element"); return false;}
+    if(i != 18) { osilerror_wrapper( ch,osillineno," problem with <base64BinaryData> element"); return NULL;}
     int b64len = b64textend - b64textstart;
     b64string = new char[ b64len + 1]; 
     for(ki = 0; ki < b64len; ki++) b64string[ki] = b64textstart[ ki]; 
@@ -11097,7 +11097,7 @@
     // burn the white space
     for( ; ISWHITESPACE( *ch) || isnewline( *ch, osillineno); ch++ ) ;
     // better have an > sign or not valid
-    if(*ch != '>' ) {  osilerror_wrapper( ch,osillineno,"</base64BinaryData> element does not have a proper closing >"); return false;}
+    if(*ch != '>' ) {  osilerror_wrapper( ch,osillineno,"</base64BinaryData> element does not have a proper closing >"); return NULL;}
     ch++;
     for( ; ISWHITESPACE( *ch) || isnewline( *ch, osillineno); ch++ ) ;
     *p = ch;