package/libsigc: bump to version 3.2.0

https://github.com/libsigcplusplus/libsigcplusplus/blob/3.2.0/NEWS

Signed-off-by: Daniel Lang <d.lang@abatec.at>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/libsigc/libsigc.hash

@@ -1,5 +1,5 @@
-# From http://ftp.gnome.org/pub/gnome/sources/libsigc++/3.0/libsigc++-3.0.7.sha256sum
-sha256  bfbe91c0d094ea6bbc6cbd3909b7d98c6561eea8b6d9c0c25add906a6e83d733  libsigc++-3.0.7.tar.xz
+# From http://ftp.gnome.org/pub/gnome/sources/libsigc++/3.2/libsigc++-3.2.0.sha256sum
+sha256  8cdcb986e3f0a7c5b4474aa3c833d676e62469509f4899110ddf118f04082651  libsigc++-3.2.0.tar.xz
 
 # Locally calculated
 sha256  97628afebc60f026f5c2b25d7491c46a5c4ee61f693e7cfa07fbd2c03605979b  COPYING

package/libsigc/libsigc.mk

@@ -4,8 +4,8 @@
 #
 ################################################################################
 
-LIBSIGC_VERSION_MAJOR = 3.0
-LIBSIGC_VERSION = $(LIBSIGC_VERSION_MAJOR).7
+LIBSIGC_VERSION_MAJOR = 3.2
+LIBSIGC_VERSION = $(LIBSIGC_VERSION_MAJOR).0
 LIBSIGC_SOURCE = libsigc++-$(LIBSIGC_VERSION).tar.xz
 LIBSIGC_SITE = http://ftp.gnome.org/pub/GNOME/sources/libsigc++/$(LIBSIGC_VERSION_MAJOR)
 LIBSIGC_INSTALL_STAGING = YES