gnulib-tool.py: Don't ignore the argument to --doc-base.

[Collin Funk]

When building GNU PSPP I see this:

--- /home/collin/.local/src/pspp/gl/m4/gnulib-cache.m4  2024-04-02 
18:10:06.209522277 -0700
+++ /home/collin/.local/src/glpyXBzSID/gl/m4/gnulib-cache.m4    2024-04-02 
18:09:37.828467148 -0700
@@ -31,7 +31,7 @@
 #  --lib=libgl \
 #  --source-base=gl \
 #  --m4-base=gl/m4 \
-#  --doc-base=gl/doc \
+#  --doc-base=doc \
 #  --tests-base=tests \
 #  --aux-dir=build-aux \
 #  --makefile-name=automake.mk \
@@ -302,7 +302,7 @@
 gl_SOURCE_BASE([gl])
 gl_M4_BASE([gl/m4])
 gl_PO_BASE([])
-gl_DOC_BASE([gl/doc])
+gl_DOC_BASE([doc])
 gl_TESTS_BASE([tests])
 gl_LIB([libgl])
 gl_MAKEFILE_NAME([automake.mk])

This patch fixes it. It seems that gnulib-tool.py never respected the
directory passed with --doc-base.

PSPP doesn't use the bootstrap script, and running make without a
target will fail with GNULIB_TOOL_IMPL=sh+py because of some *.png
files.

This seems to work:

       env GNUMAKEFLAGS="" GNULIB_TOOL_IMPL=sh+py make -f Smake prep_ph

Collin
From 89fbe03cde20a249899e8878c525f47b41286d45 Mon Sep 17 00:00:00 2001
From: Collin Funk <collin.fu...@gmail.com>
Date: Tue, 2 Apr 2024 18:04:09 -0700
Subject: [PATCH] gnulib-tool.py: Don't ignore the argument to --doc-base.

* pygnulib/main.py (main): Check for the argument to --doc-base before
creating the GLConfig object.
---
 ChangeLog        | 6 ++++++
 pygnulib/main.py | 4 +++-
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index d6b9f731bc..068fe06662 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2024-04-02  Collin Funk  <collin.fu...@gmail.com>
+
+	gnulib-tool.py: Don't ignore the argument to --doc-base.
+	* pygnulib/main.py (main): Check for the argument to --doc-base before
+	creating the GLConfig object.
+
 2024-04-02  Collin Funk  <collin.fu...@gmail.com>
 
 	gnulib-tool.py: Use [] instead of list() to initialize empty lists.
diff --git a/pygnulib/main.py b/pygnulib/main.py
index c6a6bd3241..233c79182e 100644
--- a/pygnulib/main.py
+++ b/pygnulib/main.py
@@ -738,6 +738,9 @@ def main() -> None:
     pobase = cmdargs.pobase
     if pobase != None:
         pobase = cmdargs.pobase[0]
+    docbase = cmdargs.docbase
+    if docbase != None:
+        docbase = cmdargs.docbase[0]
     testsbase = cmdargs.testsbase
     if testsbase != None:
         testsbase = cmdargs.testsbase[0]
@@ -808,7 +811,6 @@ def main() -> None:
     copymode = cmdargs.copymode
     lcopymode = cmdargs.lcopymode
     single_configure = cmdargs.single_configure
-    docbase = None
 
     # Create pygnulib configuration.
     config = GLConfig(
-- 
2.44.0