libsigc++: update to 2.10.3.

2.10.3 (stable)

Build:
* Add Meson build, alongside the existing Autotools build.
  (Kjell Ahlstedt, Chun-Wei Fan) Pull request #47, #50
* Improve MSVC builds on Windows
  (Chun-Wei Fan) Pull request #50
* meson.build: Check if .git is a directory or file
  (Kjell Ahlstedt) Merge request pangomm!8 (Ting-Wei Lan)
* docs/reference/meson.build: Check if perl is found
  (Kjell Ahlstedt) Issue #53 (Rasmus Thomsen)
* README: Describe building with Meson and Autotools
  (Kjell Ahlstedt)

Tests:
* Make test_track_obj.cc compile with clang++
  (Kjell Ahlstedt)

devel/libsigc++/Makefile

@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.59 2020/03/20 11:57:27 nia Exp $
+# $NetBSD: Makefile,v 1.60 2020/04/06 09:00:16 wiz Exp $
 
-DISTNAME=	libsigc++-2.10.2
+DISTNAME=	libsigc++-2.10.3
 CATEGORIES=	devel gnome
 MASTER_SITES=	${MASTER_SITE_GNOME:=sources/libsigc++/${PKGVERSION_NOREV:R}/}
 EXTRACT_SUFX=	.tar.xz

devel/libsigc++/PLIST

@@ -1,4 +1,4 @@
-@comment $NetBSD: PLIST,v 1.22 2019/08/16 17:33:49 wiz Exp $
+@comment $NetBSD: PLIST,v 1.23 2020/04/06 09:00:16 wiz Exp $
 include/sigc++-2.0/sigc++/adaptors/adaptor_trait.h
 include/sigc++-2.0/sigc++/adaptors/adaptors.h
 include/sigc++-2.0/sigc++/adaptors/bind.h
@@ -397,13 +397,13 @@ share/doc/libsigc++-2.0/reference/html/classsigc_1_1volatile__mem__functor7.html
 share/doc/libsigc++-2.0/reference/html/classsigc_1_1volatile__mem__functor7__inherit__graph.png
 share/doc/libsigc++-2.0/reference/html/closed.png
 share/doc/libsigc++-2.0/reference/html/deprecated.html
-share/doc/libsigc++-2.0/reference/html/dir_69292b900bf9f32fa1522c0a297aa561.html
-share/doc/libsigc++-2.0/reference/html/dir_7061c03125b177af05ebe54a01c7815e.html
+share/doc/libsigc++-2.0/reference/html/dir_49637f7a506fb46452b61fa9242e94fa.html
+share/doc/libsigc++-2.0/reference/html/dir_707459f1045f56e3cfd726c166cb6440.html
 share/doc/libsigc++-2.0/reference/html/dir_a7a614a8e549e28882ee9909ca095aec.html
+share/doc/libsigc++-2.0/reference/html/dir_cfdc85331b77931098d1cb943916d356.html
 share/doc/libsigc++-2.0/reference/html/dir_d1b074183e01b19b1ce0df6f4868a06f.html
-share/doc/libsigc++-2.0/reference/html/dir_e610d0fd7d8d422b14c5e759f0ef71be.html
+share/doc/libsigc++-2.0/reference/html/dir_d27af17c007bf8336206730e5f9cd2f1.html
 share/doc/libsigc++-2.0/reference/html/dir_e7ee533ee50f0002bd12390b80ea971b.html
-share/doc/libsigc++-2.0/reference/html/dir_ffa8fd617c28221f63108bd7d58d97eb.html
 share/doc/libsigc++-2.0/reference/html/doc.png
 share/doc/libsigc++-2.0/reference/html/doxygen-extra.css
 share/doc/libsigc++-2.0/reference/html/doxygen.css

devel/libsigc++/distinfo

@@ -1,6 +1,6 @@
-$NetBSD: distinfo,v 1.30 2019/08/16 12:03:51 wiz Exp $
+$NetBSD: distinfo,v 1.31 2020/04/06 09:00:16 wiz Exp $
 
-SHA1 (libsigc++-2.10.2.tar.xz) = 9250f1c54d1985fb1a36c9650b963ecdae1227de
-RMD160 (libsigc++-2.10.2.tar.xz) = 96d27599172efa1ea7415c1420cd191bb3ac1a3e
-SHA512 (libsigc++-2.10.2.tar.xz) = 33bc1ed20b3cec07aba3e090af24c3dcb0047b2ce4f693879fd7201a24abdeecb17f6b1307a2d0c0bc2b74f16cfa0c60f300b7cdf8ef13db1bfd990bdf8f9eb4
-Size (libsigc++-2.10.2.tar.xz) = 3948080 bytes
+SHA1 (libsigc++-2.10.3.tar.xz) = fb76ce551efa88e9aa4e84424ca1ab9fe75570bf
+RMD160 (libsigc++-2.10.3.tar.xz) = 92d1c0a29a19a28633d87f61da2f7589025efeb3
+SHA512 (libsigc++-2.10.3.tar.xz) = 3c7f90be84724e39073c05624ad2bee6a5835e2c6cb6cf9e605edc6574eb7cd99ec153aaca6e8fcf7e3a6c031c4e9c334da32d04177d36788e64a17667c70b4e
+Size (libsigc++-2.10.3.tar.xz) = 4558428 bytes