package/ncmpc: add pcre optional dependency

pcre dependency has been added in version 0.32:
https://github.com/MusicPlayerDaemon/ncmpc/commit/0b3169510014f0f336de58864b97a3cc0f308500

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/ncmpc/ncmpc.mk

@@ -14,8 +14,7 @@ NCMPC_LICENSE_FILES = COPYING
 
 NCMPC_CONF_OPTS = \
 	-Dcurses=ncurses \
-	-Ddocumentation=disabled \
-	-Dregex=disabled
+	-Ddocumentation=disabled
 
 ifeq ($(BR2_PACKAGE_LIRC_TOOLS),y)
 NCMPC_DEPENDENCIES += lirc-tools
@@ -24,4 +23,11 @@ else
 NCMPC_CONF_OPTS += -Dlirc=disabled
 endif
 
+ifeq ($(BR2_PACKAGE_PCRE),y)
+NCMPC_DEPENDENCIES += pcre
+NCMPC_CONF_OPTS += -Dregex=enabled
+else
+NCMPC_CONF_OPTS += -Dregex=disabled
+endif
+
 $(eval $(meson-package))