package/lighttpd: add optional dependency to libxcrypt

When glibc was bumped to version 2.39 in commit
b5680f53d60acf8ff6010082f873438a39bd5d97 it removed the deprecated
libcrypt support.

As glibc's libcrypt was providing lighttpd's libcrypt dependency this
broke the lighttpd build using glibc version 2.39.

To fix this select the libxcrypt dependency to lighttpd when using a
glibc toolchain and add the dependency if selected.

Signed-off-by: Bernd Kuhls <bernd@kuhls.net>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>

package/lighttpd/Config.in

@@ -6,6 +6,7 @@ config BR2_PACKAGE_LIGHTTPD
 	bool "lighttpd"
 	depends on BR2_USE_MMU # fork()
 	depends on !BR2_STATIC_LIBS
+	select BR2_PACKAGE_LIBXCRYPT if BR2_TOOLCHAIN_USES_GLIBC
 	select BR2_PACKAGE_XXHASH
 	help
 	  lighttpd a secure, fast, compliant and very flexible

package/lighttpd/lighttpd.mk

@@ -30,6 +30,10 @@ LIGHTTPD_CONF_OPTS = \
 	-Dbuild_static=false \
 	-Dmoduledir=lib/lighttpd
 
+ifeq ($(BR2_PACKAGE_LIBXCRYPT),y)
+LIGHTTPD_DEPENDENCIES += libxcrypt
+endif
+
 ifeq ($(BR2_PACKAGE_LIGHTTPD_BROTLI),y)
 LIGHTTPD_DEPENDENCIES += brotli
 LIGHTTPD_CONF_OPTS += -Dwith_brotli=enabled