No SIGSEGV on xdvipdfmx

OBS-URL: https://build.opensuse.org/package/show/Publishing/libpaper?expand=0&rev=7

libpaper-foul.patch

@@ -0,0 +1,20 @@
+Avoid SIGSEGV in e.g. xdvipdfmx
+
+---
+ lib/libpaper.c |    5 ++++-
+ 1 file changed, 4 insertions(+), 1 deletion(-)
+
+--- a/lib/libpaper.c
++++ b/lib/libpaper.c	2022-08-24 07:40:31.736345850 +0000
+@@ -316,7 +316,10 @@ const char *defaultpapername(void) {
+ 
+ /* Alias for defaultpapername; its return value must be freed! */
+ const char *systempapername(void) {
+-    return strdup(defaultpapername());
++    const char *papername = defaultpapername();
++    if (papername == NULL)
++        return NULL;
++    return strdup(papername);
+ }
+ 
+ /* Get the default paper size. */

libpaper.changes

@@ -1,3 +1,10 @@
+-------------------------------------------------------------------
+Wed Aug 24 07:41:07 UTC 2022 - Dr. Werner Fink <werner@suse.de>
+
+- Add patch libpaper-foul.patch
+  * Do not expect that defaultpapername() returns a default paper
+    size but also NULL (nada) 
+
 -------------------------------------------------------------------
 Mon Aug 22 12:37:32 UTC 2022 - Dominique Leuenberger <dimstar@opensuse.org>
 

libpaper.spec

@@ -25,6 +25,7 @@ Summary:        Enables users to indicate their preferred paper size
 License:        GPL-3.0-or-later
 URL:            https://github.com/rrthomas/libpaper
 Source:         %{url}/releases/download/v%{version}/libpaper-%{version}.tar.gz
+Patch0:         libpaper-foul.patch
 BuildRequires:  autoconf
 BuildRequires:  automake
 BuildRequires:  help2man