Index: Mk/Scripts/qa.sh
===================================================================
--- Mk/Scripts/qa.sh
+++ Mk/Scripts/qa.sh
@@ -822,10 +826,67 @@
 	return $rc
 }
 
+badlibmix() {
+	local file dep_file rc
+	local base_ssl_libs port_ssl_libs
+	local base_gcc_libs port_gcc_libs
 
+	rc=0
+
+	# Check all dynamicaly linked ELF files
+	# Some .so are not executable, but we want to check them too.
+	while read file; do
+		# No results presents a blank line from heredoc.
+		[ -z "${file}" ] && continue
+
+		base_ssl_libs=""
+		port_ssl_libs=""
+		base_gcc_libs=""
+		port_gcc_libs=""
+
+		while read dep_file; do
+			# openssl
+			if echo ${dep_file} | grep -qE "^(/usr/lib/libssl|/lib/libcrypto)\.so"; then
+				base_ssl_libs="${base_ssl_libs} ${dep_file}"
+			fi
+			if echo ${dep_file} | grep -qE "^(${PREFIX}|${LOCALBASE})/lib/lib(ssl|crypto)\.so"; then
+				port_ssl_libs="${port_ssl_libs} ${dep_file}"
+			fi
+			# libgcc_s
+			if echo ${dep_file} | grep -qE "^/usr/lib/libgcc_s\.so"; then
+				base_gcc_libs="${base_gcc_libs} ${dep_file}"
+			fi
+			if echo ${dep_file} | grep -qE "^/usr/local/lib/.*/libgcc_s\.so"; then
+				port_gcc_libs="${port_gcc_libs} ${dep_file}"
+			fi
+		done <<-EOT
+		$(LD_LIBRARY_PATH=${STAGEDIR}${PREFIX}/lib ldd "${STAGEDIR}${file}" | \
+			grep '=>' | \
+			awk '{print $3}')
+		EOT
+
+		if [ -n "${base_ssl_libs}" -a -n "${port_ssl_libs}" ]; then
+			err "${file} is linked to both base and port SSL libraries: `echo ${base_ssl_libs}` and `echo ${port_ssl_libs}`"
+			rc=1
+		fi
+		if [ -n "${base_gcc_libs}" -a -n "${port_gcc_libs}" ]; then
+			err "${file} is linked to both base and port gcc_s libraries: `echo ${base_gcc_libs}` and `echo ${port_gcc_libs}`"
+			rc=1
+		fi
+	done <<-EOT
+	$(list_stagedir_elfs | \
+		file -F $'\1' -f - | \
+		grep -a 'ELF.*FreeBSD.*dynamically linked' | \
+		cut -f 1 -d $'\1'| \
+		sed -e 's/^\.//')
+	EOT
+
+	return ${rc}
+}
+
 checks="shebang symlinks paths stripped desktopfileutils sharedmimeinfo"
 checks="$checks suidfiles libtool libperl prefixvar baselibs terminfo"
-checks="$checks proxydeps sonames perlcore no_arch"
+checks="$checks proxydeps sonames perlcore no_arch badlibmix"
 
 ret=0
 cd ${STAGEDIR}