diff --git a/stepmania/src/crypto51/asn.cpp b/stepmania/src/crypto51/asn.cpp
index 262a430406..e884e9e8b1 100644
--- a/stepmania/src/crypto51/asn.cpp
+++ b/stepmania/src/crypto51/asn.cpp
@@ -88,7 +88,7 @@ void BERDecodeNull(BufferedTransformation &in)
 	byte b;
 	if (!in.Get(b) || b != TAG_NULL)
 		BERDecodeError();
-	unsigned int length;
+	unsigned int length = 0;
 	if (!BERLengthDecode(in, length) || length != 0)
 		BERDecodeError();
 }
@@ -113,7 +113,7 @@ unsigned int BERDecodeOctetString(BufferedTransformation &bt, SecByteBlock &str)
 	if (!bt.Get(b) || b != OCTET_STRING)
 		BERDecodeError();
 
-	unsigned int bc;
+	unsigned int bc = 0;
 	if (!BERLengthDecode(bt, bc))
 		BERDecodeError();
 
@@ -129,7 +129,7 @@ unsigned int BERDecodeOctetString(BufferedTransformation &bt, BufferedTransforma
 	if (!bt.Get(b) || b != OCTET_STRING)
 		BERDecodeError();
 
-	unsigned int bc;
+	unsigned int bc = 0;
 	if (!BERLengthDecode(bt, bc))
 		BERDecodeError();
 
@@ -151,7 +151,7 @@ unsigned int BERDecodeTextString(BufferedTransformation &bt, std::string &str, b
 	if (!bt.Get(b) || b != asnTag)
 		BERDecodeError();
 
-	unsigned int bc;
+	unsigned int bc = 0;
 	if (!BERLengthDecode(bt, bc))
 		BERDecodeError();
 
@@ -178,7 +178,7 @@ unsigned int BERDecodeBitString(BufferedTransformation &bt, SecByteBlock &str, u
 	if (!bt.Get(b) || b != BIT_STRING)
 		BERDecodeError();
 
-	unsigned int bc;
+	unsigned int bc = 0;
 	if (!BERLengthDecode(bt, bc))
 		BERDecodeError();
 
@@ -234,7 +234,7 @@ void OID::BERDecode(BufferedTransformation &bt)
 	if (!bt.Get(b) || b != OBJECT_IDENTIFIER)
 		BERDecodeError();
 
-	unsigned int length;
+	unsigned int length = 0;
 	if (!BERLengthDecode(bt, length) || length < 1)
 		BERDecodeError();
 
diff --git a/stepmania/src/crypto51/asn.h b/stepmania/src/crypto51/asn.h
index 6442846ddb..8e96d3eb93 100644
--- a/stepmania/src/crypto51/asn.h
+++ b/stepmania/src/crypto51/asn.h
@@ -307,7 +307,7 @@ void BERDecodeUnsigned(BufferedTransformation &in, T &w, byte asnTag = INTEGER,
 	if (!in.Get(b) || b != asnTag)
 		BERDecodeError();
 
-	unsigned int bc;
+	unsigned int bc = 0;
 	BERLengthDecode(in, bc);
 
 	SecByteBlock buf(bc);
diff --git a/stepmania/src/crypto51/cryptlib.h b/stepmania/src/crypto51/cryptlib.h
index 75209aceb7..dd30f6432f 100644
--- a/stepmania/src/crypto51/cryptlib.h
+++ b/stepmania/src/crypto51/cryptlib.h
@@ -280,7 +280,7 @@ public:
 	}
 
 	//! to be implemented by derived classes, users should use one of the above functions instead
-	virtual bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const {sm_crash();};
+	virtual bool GetVoidValue(const char *name, const std::type_info &valueType, void *pValue) const { sm_crash(); }
 };
 
 //! namespace containing value name definitions
diff --git a/stepmania/src/pcre/pcre.c b/stepmania/src/pcre/pcre.c
index bc2b519b08..48da79a794 100644
--- a/stepmania/src/pcre/pcre.c
+++ b/stepmania/src/pcre/pcre.c
@@ -4197,7 +4197,7 @@ pattern. We can't be so clever for #-comments. */
 ptr = (const uschar *)(pattern - 1);
 while ((c = *(++ptr)) != 0)
   {
-  int min, max;
+  int min = 0, max = 0;
   int class_optcount;
   int bracket_length;
   int duplength;