[PATCH] Ignore --enable-cxx-stdlib when checking configure docs

[Doug Torrance]

From: Doug Torrance <dtorr...@gatech.edu>

It's a new option added by libtool beginning w/ v2.6.0, and there's no
reason for us to document it. We ignore it with the other
libtool-added configure options.

Fixes: https://bugs.debian.org/1146103
---
Makefile.am | 1 +
1 file changed, 1 insertion(+)

diff --git a/Makefile.am b/Makefile.am
index eb80ec7f..640a7d20 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -146,6 +146,7 @@ configure-documentation:
--ignore-prg 'with-aix-soname # new in libtool 2.4.4 up to 2.5.2' \
--ignore-prg 'enable-aix-soname # renamed in libtool 2.5.3' \
--ignore-prg 'enable-pic # new in libtool 2.5.3' \
+ --ignore-prg 'enable-cxx-stdlib # new in libtool 2.6.0' \
--ignore-prg 'with-x # no use, it would not work without X'

.PHONY: configure-documentation
--
2.43.0