--- ./build/pack.c.orig	2020-09-30 12:49:33.397074156 +0000
+++ ./build/pack.c	2020-09-30 12:51:34.628805840 +0000
@@ -728,6 +728,71 @@ static rpmRC packageBinary(rpmSpec spec,
     return rc;
 }
 
+static void trimChangelog(Header h)
+{
+    static int oneshot;
+    static int cuttime, minnum, maxnum;
+    rpm_count_t i, keep;
+    struct rpmtd_s timestd, namestd, textstd;
+    rpm_count_t count;
+
+    if (!oneshot) {
+	char *binarychangelogtrim = rpmExpand("%{?_binarychangelogtrim}", NULL);
+	oneshot = 1;
+	if (binarychangelogtrim && *binarychangelogtrim) {
+	    maxnum = atoi(binarychangelogtrim);
+	    binarychangelogtrim = strchr(binarychangelogtrim, ',');
+	    if (binarychangelogtrim)
+	      binarychangelogtrim++;
+	}
+	if (binarychangelogtrim && *binarychangelogtrim) {
+	    cuttime = atoi(binarychangelogtrim);
+	    binarychangelogtrim = strchr(binarychangelogtrim, ',');
+	    if (binarychangelogtrim)
+	      binarychangelogtrim++;
+	}
+	if (binarychangelogtrim && *binarychangelogtrim) {
+	    minnum = atoi(binarychangelogtrim);
+	    binarychangelogtrim = strchr(binarychangelogtrim, ',');
+	}
+    }
+    if (!cuttime && !minnum && !maxnum) {
+	return;
+    }
+
+    if (!headerGet(h, RPMTAG_CHANGELOGTIME, &timestd, HEADERGET_MINMEM))
+	return;
+    count = rpmtdCount(&timestd);
+    if ((!cuttime || count <= minnum) && (!maxnum || count <= maxnum)) {
+	rpmtdFreeData(&timestd);
+	return;
+    }
+    keep = count;
+    if (maxnum && keep > maxnum)
+	keep = maxnum;
+    if (cuttime) {
+	for (i = 0; i < keep; i++) {
+	    uint32_t *tp = rpmtdNextUint32(&timestd);
+	    if (i >= minnum && tp && *tp < cuttime)
+		break;
+	}
+	keep = i;
+    }
+    if (keep >= count) {
+	rpmtdFreeData(&timestd);
+	return;
+    }
+    headerGet(h, RPMTAG_CHANGELOGNAME, &namestd, HEADERGET_MINMEM);
+    headerGet(h, RPMTAG_CHANGELOGTEXT, &textstd, HEADERGET_MINMEM);
+    timestd.count = namestd.count = textstd.count = keep;
+    headerMod(h, &timestd);
+    headerMod(h, &namestd);
+    headerMod(h, &textstd);
+    rpmtdFreeData(&textstd);
+    rpmtdFreeData(&namestd);
+    rpmtdFreeData(&timestd);
+}
+
 static int compareBinaries(const void *p1, const void *p2) {
     Package pkg1 = *(Package *)p1;
     Package pkg2 = *(Package *)p2;
@@ -751,6 +816,8 @@ rpmRC packageBinaries(rpmSpec spec, cons
     Package *tasks;
     int npkgs = 0;
 
+    trimChangelog(spec->packages->header);
+
     for (pkg = spec->packages; pkg != NULL; pkg = pkg->next)
         npkgs++;
     tasks = xcalloc(npkgs, sizeof(Package));
--- ./build/parseChangelog.c.orig	2020-08-31 09:14:07.991087349 +0000
+++ ./build/parseChangelog.c	2020-09-30 12:49:33.401074147 +0000
@@ -267,6 +267,11 @@ static rpmRC addChangelog(Header h, ARGV
 	    goto exit;
 	}
 
+        /* workaround old suse oddity */
+        if (*s == '-' && s[1] == ' ') {
+            s += 2;
+        }
+
 	/* name */
 	name = s;
 	while (*s != '\0') s++;