diff --git a/libsandbox/trace.c b/libsandbox/trace.c
index 1e34924..aad3fd5 100644
--- a/libsandbox/trace.c
+++ b/libsandbox/trace.c
@@ -32,7 +32,7 @@ pid_t trace_pid;
 # error "unable to find struct for tracing regs"
 #endif
 
-#ifdef HAVE_OPEN64
+#if defined(HAVE_OPEN64) && !defined(open64)
 # define sb_openat_pre_check sb_openat64_pre_check
 #endif
 
diff --git a/scripts/gen_symbol_header.awk b/scripts/gen_symbol_header.awk
index c9af7f9..4abf4ca 100644
--- a/scripts/gen_symbol_header.awk
+++ b/scripts/gen_symbol_header.awk
@@ -17,7 +17,7 @@ BEGIN {
 		# On x86, x86_64 and others, $8 is the symbol name, but on
 		# alpha, its $10, so rather use $NF, as it should be the
 		# last field
-		if ($NF ~ sym_regex) {
+		if (($5 != "WEAK") && ($NF ~ sym_regex)) {
 			split($NF, symbol_array, /@|@@/);
 
 			# Don't add local symbols of versioned libc's
diff --git a/scripts/gen_symbol_version_map.awk b/scripts/gen_symbol_version_map.awk
index a0a43c0..32c4b0d 100644
--- a/scripts/gen_symbol_version_map.awk
+++ b/scripts/gen_symbol_version_map.awk
@@ -14,7 +14,7 @@ BEGIN {
 
 	# Only check FUNCtion symbols which are not LOCAL, or
 	# do not have DEFAULT visibility
-	if ($4 != "FUNC" || $5 == "LOCAL" || $6 != "DEFAULT")
+	if ($4 != "FUNC" || $5 == "LOCAL")
 		next;
 
 	for (x in SYMBOLS) {