--- rspamd-4.2.2.orig/contrib/snowball/CMakeLists.txt	2026-10-18 07:52:00.736739986 +0200
+++ rspamd-4.2.2/contrib/snowball/CMakeLists.txt	2026-10-18 07:52:00.747286157 +0200
@@ -28,6 +28,15 @@ ADD_DEFINITIONS("-DDISABLE_CSHARP")
 ADD_DEFINITIONS("-DDISABLE_PASCAL")
 ADD_DEFINITIONS("-DDISABLE_RUST")
 
+# a build host snowball can be passed when cross compiling
+IF(SNOWBALL_EXECUTABLE)
+	SET(SNOWBALL_COMMAND ${SNOWBALL_EXECUTABLE})
+	SET(SNOWBALL_DEPENDS ${SNOWBALL_EXECUTABLE})
+ELSE()
+	SET(SNOWBALL_COMMAND ${CMAKE_CURRENT_BINARY_DIR}/snowball)
+	SET(SNOWBALL_DEPENDS snowball)
+ENDIF()
+
 MACRO(gen_stem IN ENCODING)
 	FOREACH(_it ${IN})
 		SET(_base "${CMAKE_CURRENT_BINARY_DIR}/libstemmer/stem_${ENCODING}_${_it}")
@@ -37,15 +46,15 @@ MACRO(gen_stem IN ENCODING)
 		SET(_input "${CMAKE_CURRENT_SOURCE_DIR}/algorithms/${_it}.sbl")
 		IF(${_in_enc} STREQUAL "Unicode" AND NOT EXISTS ${_input})
 			ADD_CUSTOM_COMMAND(OUTPUT ${_source}
-				COMMAND env "ASAN_OPTIONS=detect_leaks=0" ${CMAKE_CURRENT_BINARY_DIR}/snowball  "${CMAKE_CURRENT_SOURCE_DIR}/algorithms/${_it}/stem_ISO_8859_1.sbl" -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ../runtime -u
-				DEPENDS snowball)
+				COMMAND env "ASAN_OPTIONS=detect_leaks=0" ${SNOWBALL_COMMAND} "${CMAKE_CURRENT_SOURCE_DIR}/algorithms/${_it}/stem_ISO_8859_1.sbl" -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ../runtime -u
+				DEPENDS ${SNOWBALL_DEPENDS})
 			LIST(APPEND STEMMER_SOURCES ${_source})
 
 		ELSE()
 		IF(EXISTS "${_input}")
 			ADD_CUSTOM_COMMAND(OUTPUT ${_source}
-				COMMAND env "ASAN_OPTIONS=detect_leaks=0" ${CMAKE_CURRENT_BINARY_DIR}/snowball ${_input} -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ../runtime -u
-				DEPENDS snowball)
+				COMMAND env "ASAN_OPTIONS=detect_leaks=0" ${SNOWBALL_COMMAND} ${_input} -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ../runtime -u
+				DEPENDS ${SNOWBALL_DEPENDS})
 			LIST(APPEND STEMMER_SOURCES ${_source})
 		ENDIF()
 		ENDIF()
@@ -54,7 +63,9 @@ ENDMACRO()
 
 INCLUDE_DIRECTORIES("include")
 
-ADD_EXECUTABLE(snowball ${COMPILER_SOURCES})
+IF(NOT SNOWBALL_EXECUTABLE)
+	ADD_EXECUTABLE(snowball ${COMPILER_SOURCES})
+ENDIF()
 
 ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/libstemmer/modules.h
  COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/libstemmer/mkmodules.pl ${CMAKE_CURRENT_BINARY_DIR}/libstemmer/modules.h libstemmer ${CMAKE_CURRENT_SOURCE_DIR}/libstemmer/modules.txt ${CMAKE_CURRENT_BINARY_DIR}/libstemmer/mkinc.mak)