package/libgit2: bump version to 1.4.2

Licence changes mostly concern vendored dependencies (that buildroot does
not use) and a new bundled PRNG used to reimplement mkstemp() - added
CC0 license for that.

Some buildsystem options also changed:
- THREADSAFE is now USE_THREADS
- BUILD_CLAR is now BUILD_TESTS, which the cmake infra already give.

Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/libgit2/libgit2.hash

@@ -1,3 +1,3 @@
 # Locally calculated
-sha256  192eeff84596ff09efb6b01835a066f2df7cd7985e0991c79595688e6b36444e  libgit2-1.3.0.tar.gz
-sha256  8b7e4f54f8bf210c8fe010a49571a1ee57463ef020cc43f051d4d3fbb74942af  COPYING
+sha256  901c2b4492976b86477569502a41c31b274b69adc177149c02099ea88404ef19  libgit2-1.4.2.tar.gz
+sha256  0092f24acc306ee3287dc05b5e85cb9e0e48cd3f11c60c4625b1a673a5912616  COPYING

package/libgit2/libgit2.mk

@@ -4,21 +4,20 @@
 #
 ################################################################################
 
-LIBGIT2_VERSION = 1.3.0
+LIBGIT2_VERSION = 1.4.2
 LIBGIT2_SITE = $(call github,libgit2,libgit2,v$(LIBGIT2_VERSION))
-LIBGIT2_LICENSE = GPL-2.0 with linking exception, MIT (sha1), wildmatch license (wildmatch)
+LIBGIT2_LICENSE = GPL-2.0 with linking exception, MIT (sha1), wildmatch license (wildmatch), CC0-1.0 (xoroshiro256)
 LIBGIT2_LICENSE_FILES = COPYING
 LIBGIT2_CPE_ID_VENDOR = libgit2_project
 LIBGIT2_INSTALL_STAGING = YES
 
 LIBGIT2_CONF_OPTS = \
 	-DUSE_GSSAPI=OFF \
-	-DBUILD_CLAR=OFF \
 	-DUSE_ICONV=ON \
 	-DREGEX_BACKEND=regcomp \
 	-DUSE_HTTP_PARSER=system \
 	-DUSE_NTLMCLIENT=OFF \
-	-DTHREADSAFE=$(if $(BR2_TOOLCHAIN_HAS_THREADS),ON,OFF)
+	-DUSE_THREADS=$(if $(BR2_TOOLCHAIN_HAS_THREADS),ON,OFF)
 
 LIBGIT2_DEPENDENCIES = zlib libhttpparser