Add ABI-specific directories to the system library path

libisoburn-1.5.4-rpath.patch

@@ -0,0 +1,20 @@
+Patch by Robert Scheck <robert@fedoraproject.org> for libisoburn >= 1.5.4 to work around the Debian
+specific aclocal/libtool behaviour not covering /usr/lib64 or /lib64 paths for 64 bit libraries.
+
+--- libisoburn-1.5.4/configure					2021-01-30 15:32:57.000000000 +0100
++++ libisoburn-1.5.4/configure.rpath				2021-07-23 03:13:01.956656342 +0200
+@@ -11541,10 +11541,13 @@
+   # before this can be enabled.
+   hardcode_into_libs=yes
+ 
++  # Add ABI-specific directories to the system library path.
++  sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
++
+   # Append ld.so.conf contents to the search path
+   if test -f /etc/ld.so.conf; then
+     lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+-    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
++    sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+   fi
+ 
+   # We used to test for /lib/ld.so.1 and disable shared libraries on

libisoburn.spec

@@ -11,6 +11,7 @@ Source1:         https://files.libburnia-project.org/releases/%{pkgname}-%{versi
 Source2:         gpgkey-44BC9FD0D688EB007C4DD029E9CBDFC0ABC0A854.gpg
 Source3:         xorriso_extract_iso_image.desktop
 Patch0:          libisoburn-1.0.8-multilib.patch
+Patch1:          libisoburn-1.5.4-rpath.patch
 BuildRequires:   gnupg2
 BuildRequires:   gcc, gcc-c++, make, readline-devel, libacl-devel, zlib-devel
 %if 0%{?rhel} == 7
@@ -89,6 +90,7 @@ DVD-RAM, BD-R and BD-RE.
 %{gpgverify} --keyring='%{SOURCE2}' --signature='%{SOURCE1}' --data='%{SOURCE0}'
 %setup -q -n %{pkgname}-%{version}
 %patch0 -p1 -b .multilib
+%patch1 -p1 -b .rpath
 
 # Use libisofs1 and libburn1 on EPEL
 %if 0%{?rhel} == 7 || (0%{?rhel} && "%{name}" != "%{pkgname}")