From 425bb31e1dd095e16cdc463a636a78193e6c86b5 Mon Sep 17 00:00:00 2001
From: Peter Wu <peter@lekensteyn.nl>
Date: Tue, 21 Jan 2020 01:05:49 +0000
Subject: [PATCH] [Minor] contrib/snowball: fix modules.h location

* Reproducible builds! No more absolute paths in source files, so the
  generated binary is also invariant of the build directory.
* Output modules.h in snowball/libstemmer/ instead of snowball/. This
  allows removal of the extra include directory and -f option.
* This partially reverts some changes in
  https://github.com/snowballstem/snowball/commit/d178f201fda878c26538401650a7d46c37a5e6f1
  and matches the commands in GNUmakefile.
---
 contrib/snowball/CMakeLists.txt          |  7 +++----
 contrib/snowball/libstemmer/mkmodules.pl | 11 +----------
 2 files changed, 4 insertions(+), 14 deletions(-)

diff --git a/contrib/snowball/CMakeLists.txt b/contrib/snowball/CMakeLists.txt
index 8674e2d88..7910c7b3a 100644
--- a/contrib/snowball/CMakeLists.txt
+++ b/contrib/snowball/CMakeLists.txt
@@ -37,14 +37,14 @@ MACRO(gen_stem IN ENCODING)
 		SET(_input "${CMAKE_CURRENT_SOURCE_DIR}/algorithms/${_it}/stem_${_in_enc}.sbl")
 		IF(${_in_enc} STREQUAL "Unicode" AND NOT EXISTS ${_input})
 			ADD_CUSTOM_COMMAND(OUTPUT ${_source}
-				COMMAND ${CMAKE_CURRENT_BINARY_DIR}/snowball  "${CMAKE_CURRENT_SOURCE_DIR}/algorithms/${_it}/stem_ISO_8859_1.sbl" -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ${CMAKE_CURRENT_SOURCE_DIR}/runtime -u
+				COMMAND ${CMAKE_CURRENT_BINARY_DIR}/snowball  "${CMAKE_CURRENT_SOURCE_DIR}/algorithms/${_it}/stem_ISO_8859_1.sbl" -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ../runtime -u
 				DEPENDS snowball)
 			LIST(APPEND STEMMER_SOURCES ${_source})
 
 		ELSE()
 		IF(EXISTS "${_input}")
 			ADD_CUSTOM_COMMAND(OUTPUT ${_source}
-				COMMAND ${CMAKE_CURRENT_BINARY_DIR}/snowball ${_input} -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ${CMAKE_CURRENT_SOURCE_DIR}/runtime -u
+				COMMAND ${CMAKE_CURRENT_BINARY_DIR}/snowball ${_input} -o ${_base} -eprefix ${_it}_${ENCODING}_ -r ../runtime -u
 				DEPENDS snowball)
 			LIST(APPEND STEMMER_SOURCES ${_source})
 		ENDIF()
@@ -53,12 +53,11 @@ MACRO(gen_stem IN ENCODING)
 ENDMACRO()
 
 INCLUDE_DIRECTORIES("include")
-INCLUDE_DIRECTORIES("${CMAKE_CURRENT_BINARY_DIR}/libstemmer")
 
 ADD_EXECUTABLE(snowball ${COMPILER_SOURCES})
 
 ADD_CUSTOM_COMMAND(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/libstemmer/modules.h
- COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/libstemmer/mkmodules.pl -f ${CMAKE_CURRENT_BINARY_DIR}/libstemmer/modules.h ${CMAKE_CURRENT_BINARY_DIR}/libstemmer ${CMAKE_CURRENT_SOURCE_DIR}/libstemmer/modules.txt ${CMAKE_CURRENT_BINARY_DIR}/libstemmer/mkinc.mak)
+ COMMAND ${PERL_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/libstemmer/mkmodules.pl libstemmer/modules.h libstemmer ${CMAKE_CURRENT_SOURCE_DIR}/libstemmer/modules.txt libstemmer/mkinc.mak)
 ADD_CUSTOM_TARGET(modules DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/libstemmer/modules.h")
 
 SET(STEMMER_SOURCES "${CMAKE_CURRENT_BINARY_DIR}/libstemmer/libstemmer.c")
diff --git a/contrib/snowball/libstemmer/mkmodules.pl b/contrib/snowball/libstemmer/mkmodules.pl
index 93870b247..ff8c19e7c 100755
--- a/contrib/snowball/libstemmer/mkmodules.pl
+++ b/contrib/snowball/libstemmer/mkmodules.pl
@@ -1,17 +1,8 @@
 #!/usr/bin/perl -w
 use strict;
-use Getopt::Std;
 
 my $progname = $0;
 
-my $include_path = '../';
-our($opt_f);
-
-getopts('f');
-if ($opt_f) {
-	$include_path = '';
-}
-
 if (scalar @ARGV < 4 || scalar @ARGV > 5) {
   print "Usage: $progname <outfile> <C source directory> <modules description file> <source list file> [<extn>]\n";
   exit 1;
@@ -109,7 +100,7 @@ EOS
     foreach $lang (@algorithms) {
         my $hashref = $algorithm_encs{$lang};
         foreach $enc (sort keys (%$hashref)) {
-            print OUT "#include \"${include_path}$c_src_dir/stem_${enc}_$lang.h\"\n";
+            print OUT "#include \"../$c_src_dir/stem_${enc}_$lang.h\"\n";
         }
     }
 
-- 
2.39.5