libgit2, bump version, drop x86_gcc2 (#6974)

dev-libs/libgit2/patches/libgit2-1.4.3.patchset

@@ -0,0 +1,63 @@
+From 081229d6e982bbe309fe26e5ffe197df2d5d5d7d Mon Sep 17 00:00:00 2001
+From: Niels Sascha Reedijk <niels.reedijk@gmail.com>
+Date: Thu, 2 Jun 2022 10:27:55 +0200
+Subject: libgit2, import PR by nielx
+
+
+diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
+index e7b54d0..65e830d 100644
+--- a/src/CMakeLists.txt
++++ b/src/CMakeLists.txt
+@@ -57,6 +57,8 @@ check_function_exists(qsort_s GIT_QSORT_S)
+ 
+ check_function_exists(getentropy GIT_RAND_GETENTROPY)
+ 
++check_function_exists(getloadavg GIT_RAND_GETLOADAVG)
++
+ # Find required dependencies
+ 
+ if(WIN32)
+@@ -65,8 +67,8 @@ elseif(CMAKE_SYSTEM_NAME MATCHES "(Solaris|SunOS)")
+ 	list(APPEND LIBGIT2_SYSTEM_LIBS socket nsl)
+ 	list(APPEND LIBGIT2_PC_LIBS "-lsocket" "-lnsl")
+ elseif(CMAKE_SYSTEM_NAME MATCHES "Haiku")
+-	list(APPEND LIBGIT2_SYSTEM_LIBS network)
+-	list(APPEND LIBGIT2_PC_LIBS "-lnetwork")
++	list(APPEND LIBGIT2_SYSTEM_LIBS gnu network)
++	list(APPEND LIBGIT2_PC_LIBS "-lgnu -lnetwork")
+ endif()
+ 
+ check_library_exists(rt clock_gettime "time.h" NEED_LIBRT)
+diff --git a/src/features.h.in b/src/features.h.in
+index f920135..4f9ee13 100644
+--- a/src/features.h.in
++++ b/src/features.h.in
+@@ -49,5 +49,6 @@
+ #cmakedefine GIT_SHA1_MBEDTLS 1
+ 
+ #cmakedefine GIT_RAND_GETENTROPY 1
++#cmakedefine GIT_RAND_GETLOADAVG 1
+ 
+ #endif
+diff --git a/src/rand.c b/src/rand.c
+index 0a20813..23d72c6 100644
+--- a/src/rand.c
++++ b/src/rand.c
+@@ -106,7 +106,13 @@ GIT_INLINE(int) getseed(uint64_t *seed)
+ 		return -1;
+ 	}
+ 
++# if defined(GIT_RAND_GETLOADAVG)
+ 	getloadavg(loadavg, 3);
++# else
++	loadavg[0] = drand48();
++	loadavg[1] = drand48();
++	loadavg[2] = drand48();
++# endif
+ 
+ 	*seed = 0;
+ 	*seed |= ((uint64_t)tv.tv_usec << 40);
+-- 
+2.36.1
+
+