package/exim: Add ClamAV support

Signed-off-by: Bernd Kuhls <bernd.kuhls@t-online.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/exim/exim.mk

@@ -55,6 +55,13 @@ define EXIM_USE_DEFAULT_CONFIG_FILE_DOVECOT
 endef
 endif
 
+ifeq ($(BR2_PACKAGE_CLAMAV),y)
+EXIM_DEPENDENCIES += clamav
+define EXIM_USE_DEFAULT_CONFIG_FILE_CLAMAV
+	$(call exim-config-change,WITH_CONTENT_SCAN,yes)
+endef
+endif
+
 define EXIM_CONFIGURE_TOOLCHAIN
 	$(call exim-config-add,CC,$(TARGET_CC))
 	$(call exim-config-add,CFLAGS,$(TARGET_CFLAGS))
@@ -73,6 +80,7 @@ else # CUSTOM_CONFIG
 define EXIM_CONFIGURE_CMDS
 	$(EXIM_USE_DEFAULT_CONFIG_FILE)
 	$(EXIM_USE_DEFAULT_CONFIG_FILE_DOVECOT)
+	$(EXIM_USE_DEFAULT_CONFIG_FILE_CLAMAV)
 	$(EXIM_CONFIGURE_TOOLCHAIN)
 endef
 endif # CUSTOM_CONFIG