gnulib-tool.py: Don't unnecessarily sort an EXTRA_DIST augmentation

[Bruno Haible]

I see this test failure:

$ GNULIB_TOOL_IMPL=py ./test-create-testdir-4.sh
Files ./test-create-testdir-4.result/gllib/Makefile.am and 
tmp2146793-result/gllib/Makefile.am differ
FAIL: gnulib-tool's result has unexpected differences.
$ diff -u ./test-create-testdir-4.result/gllib/Makefile.am 
tmp2146793-result/gllib/Makefile.am
--- ./test-create-testdir-4.result/gllib/Makefile.am    2024-03-19 
17:44:58.896516035 +0100
+++ tmp2146793-result/gllib/Makefile.am 2024-03-23 19:20:42.073467517 +0100
@@ -6383,7 +6383,7 @@
 ## begin gnulib module pmccabe2html
 
 
-EXTRA_DIST += $(top_srcdir)/build-aux/pmccabe2html 
$(top_srcdir)/build-aux/pmccabe.css
+EXTRA_DIST += $(top_srcdir)/build-aux/pmccabe.css 
$(top_srcdir)/build-aux/pmccabe2html
 
 ## end   gnulib module pmccabe2html
 
@@ -7365,7 +7365,7 @@
 
 EXTRA_libgnu_a_SOURCES += relocatable.c
 
-EXTRA_DIST += $(top_srcdir)/build-aux/config.libpath 
$(top_srcdir)/build-aux/reloc-ldflags $(top_srcdir)/build-aux/libtool-reloc
+EXTRA_DIST += $(top_srcdir)/build-aux/config.libpath 
$(top_srcdir)/build-aux/libtool-reloc $(top_srcdir)/build-aux/reloc-ldflags
 
 ## end   gnulib module relocatable-prog
 

Apparently, a file list is sorted by gnulib-tool.py, whereas gnulib-tool.sh
does not sort. This patch aligns the behaviour.


2024-03-23  Bruno Haible  <br...@clisp.org>

        gnulib-tool.py: Don't unnecessarily sort an EXTRA_DIST augmentation.
        * pygnulib/GLModuleSystem.py
        (GLModule.getAutomakeSnippet_Unconditional): Don't remove duplicates or
        sort the filenames in the EXTRA_lib_SOURCES augmentation or the
        EXTRA_DIST augmentation for build-aux.

diff --git a/pygnulib/GLModuleSystem.py b/pygnulib/GLModuleSystem.py
index c0d9b0365a..b47019dbcc 100644
--- a/pygnulib/GLModuleSystem.py
+++ b/pygnulib/GLModuleSystem.py
@@ -695,14 +695,14 @@ class GLModule(object):
                     extra_files = filter_filelist(constants.NL, extra_files,
                                                   '', '.c', '', '')
                     if extra_files != '':
-                        result += 'EXTRA_lib_SOURCES += %s' % ' 
'.join(sorted(set(extra_files.split(constants.NL))))
+                        result += 'EXTRA_lib_SOURCES += %s' % ' 
'.join(extra_files.split(constants.NL))
                         result += '\n\n'
                 # Synthesize an EXTRA_DIST augmentation also for the files in 
build-aux
                 buildaux_files = filter_filelist(constants.NL, all_files,
                                                  'build-aux/', '', 
'build-aux/', '')
                 if buildaux_files != '':
                     buildaux_files = [ joinpath('$(top_srcdir)', auxdir, 
filename)
-                                       for filename in 
sorted(set(buildaux_files.split(constants.NL))) ]
+                                       for filename in 
buildaux_files.split(constants.NL) ]
                     result += 'EXTRA_DIST += %s' % ' '.join(buildaux_files)
                     result += '\n\n'
             result = constants.nlconvert(result)