[gcc(refs/users/marxin/heads/sphinx-v2)] libiberty: integrate info to sphinx-build

[gcc(refs/users/marxin/heads/sphinx-v2)] libiberty: integrate info to sphinx-build

[Martin Liska]

https://gcc.gnu.org/g:2a2ac6fa1f1b0fabe8b98d982c2bc5261a41c33c

commit 2a2ac6fa1f1b0fabe8b98d982c2bc5261a41c33c
Author: Martin Liska <mliska@suse.cz>
Date:   Thu Jun 24 16:43:55 2021 +0200

    libiberty: integrate info to sphinx-build

Diff:
---
 doc/baseconf.py       |  2 +-
 libiberty/Makefile.in | 12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)

diff --git a/doc/baseconf.py b/doc/baseconf.py
index 206328d43e5..c50dcc57299 100644
--- a/doc/baseconf.py
+++ b/doc/baseconf.py
@@ -36,7 +36,7 @@ gcc_REVISION = __read_file('REVISION')
 
 VERSION_PACKAGE = os.getenv('VERSION_PACKAGE')
 BUGURL = os.getenv('BUGURL')
-assert VERSION_PACKAGE and BUGURL
+assert VERSION_PACKAGE is not None and BUGURL is not None
 
 # The short X.Y version.
 version = gcc_BASEVER
diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
index 4f1213b983b..f38a5885048 100644
--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
@@ -273,7 +273,7 @@ $(TESTLIB): $(REQUIRED_OFILES) $(CONFIGURED_OFILES)
 	  $(REQUIRED_OFILES) $(CONFIGURED_OFILES)
 	$(RANLIB) $(TESTLIB)
 
-info: libiberty.info info-subdir
+info: doc/texinfo/libiberty.info info-subdir
 install-info: install-info-subdir
 clean-info: clean-info-subdir
 dvi: libiberty.dvi dvi-subdir
@@ -338,6 +338,16 @@ TEXISRC = \
 # elsewhere.  Others represent headers in ../include.
 TEXIFILES = fnmatch.txh pexecute.txh simple-object.txh
 
+export VERSION_PACKAGE=
+export BUGURL=
+
+RST_FILES:=$(shell find $(srcdir) -name *.rst)
+SPHINX_CONFIG_FILES:=$(srcdir)/doc/conf.py $(srcdir)/../doc/baseconf.py
+SPHINX_FILES:=$(RST_FILES) $(SPHINX_CONFIG_FILES)
+
+doc/texinfo/libiberty.info: $(SPHINX_CONFIG_FILES)
+	+ make -C $(srcdir)/../doc info SOURCEDIR=$(srcdir)/doc BUILDDIR=doc/info
+
 libiberty.info : $(srcdir)/libiberty.texi $(TEXISRC)
 	$(MAKEINFO) -I$(srcdir) $(srcdir)/libiberty.texi