apt: suppress variable expansion

The variable @MYSQL_VERSION@ is expanded to build host MySQL version.
It is useless for chroot build process.

The version of MySQL package installed at chroot is
really required information.

So, rewrite MYSQL_VERSION to installed MySQL package version in
build-deb.sh build process.

packages/apt/build-deb.sh

@@ -123,7 +123,7 @@ cp -rp /tmp/${PACKAGE}-debian debian
 # export DEB_BUILD_OPTIONS="noopt nostrip"
 MYSQL_PACKAGE_INFO=\$(apt-cache show mysql-server | grep Version | sort | tail -1)
 MYSQL_PACKAGE_VERSION=\${MYSQL_PACKAGE_INFO##Version: }
-sed -i "s/@VERSION@/\$MYSQL_PACKAGE_VERSION/" debian/control
+sed -i "s/MYSQL_VERSION/\$MYSQL_PACKAGE_VERSION/" debian/control
 debuild -us -uc
 EOF
 

packages/debian/control.in

@@ -20,7 +20,7 @@ Depends:
 	${misc:Depends},
 	${shlibs:Depends},
 	libgroonga0 (>= @REQUIRED_GROONGA_VERSION@),
-	mysql-server (= @MYSQL_VERSION@)
+	mysql-server (= MYSQL_VERSION)
 Description: A fast fulltext searchable storage engine for MySQL.
  Mroonga is a fast fulltext searchable storage engine for MySQL.
  It is based on groonga, a fast fulltext search engine and column store.