diff --git a/libftxr.changes b/libftxr.changes
index 3216cc2..b655bc9 100644
--- a/libftxr.changes
+++ b/libftxr.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Sat Nov 26 16:43:24 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
+
+- Delete system-libs.patch (not needed - system libs are
+  autodetected)
+
 -------------------------------------------------------------------
 Mon Aug  8 11:37:44 UTC 2022 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/libftxr.spec b/libftxr.spec
index 8c0cbc9..26202c5 100644
--- a/libftxr.spec
+++ b/libftxr.spec
@@ -27,7 +27,6 @@ URL:            https://github.com/libyal/libftxr
 Source:         https://github.com/libyal/libftxr/releases/download/%version/libftxr-experimental-%version.tar.gz
 Source2:        https://github.com/libyal/libftxr/releases/download/%version/libftxr-experimental-%version.tar.gz.asc
 Source9:        %name.keyring
-Patch1:         system-libs.patch
 BuildRequires:  c_compiler
 BuildRequires:  gettext-tools >= 0.18.1
 BuildRequires:  libtool
@@ -38,6 +37,7 @@ BuildRequires:  pkgconfig(libfdatetime) >= 20220112
 BuildRequires:  pkgconfig(libfguid) >= 20220113
 BuildRequires:  pkgconfig(libfusn) >= 20180726
 BuildRequires:  pkgconfig(libuna) >= 20220102
+# Various notes: https://en.opensuse.org/libyal
 
 %description
 libftxr is a library for Transactional Registry (TxR) data types.
@@ -69,9 +69,9 @@ applications that want to make use of libftxr.
 
 %build
 autoreconf -fi
-# see libcdata for version-sc
 echo "V_%version { global: *; };" >v.sym
 %configure --disable-static LDFLAGS="-Wl,--version-script=$PWD/v.sym"
+grep '  local' config.log && exit 1
 %make_build
 
 %install
diff --git a/system-libs.patch b/system-libs.patch
deleted file mode 100644
index 0cd0e27..0000000
--- a/system-libs.patch
+++ /dev/null
@@ -1,58 +0,0 @@
-From: Jan Engelhardt <jengelh@inai.de>
-Date: 2021-05-12 17:36:02.536572543 +0200
-
-Some dirs are not present in snapshots directly generated from git
-(nor are they marked as a submodule). Patch it out, since we have
-them as system libs.
----
- Makefile.am  |   12 ------------
- configure.ac |    6 ------
- 2 files changed, 18 deletions(-)
-
-Index: libftxr/Makefile.am
-===================================================================
---- libftxr.orig/Makefile.am
-+++ libftxr/Makefile.am
-@@ -3,12 +3,6 @@ ACLOCAL_AMFLAGS = -I m4
- SUBDIRS = \
- 	include \
- 	common \
--	libcerror \
--	libcnotify \
--	libuna \
--	libfdatetime \
--	libfguid \
--	libfusn \
- 	libftxr \
- 	po \
- 	manuals \
-@@ -59,12 +53,6 @@ lib: library
- 
- library:
- 	(cd $(srcdir)/common && $(MAKE) $(AM_MAKEFLAGS))
--	(cd $(srcdir)/libcerror && $(MAKE) $(AM_MAKEFLAGS))
--	(cd $(srcdir)/libcnotify && $(MAKE) $(AM_MAKEFLAGS))
--	(cd $(srcdir)/libuna && $(MAKE) $(AM_MAKEFLAGS))
--	(cd $(srcdir)/libfdatetime && $(MAKE) $(AM_MAKEFLAGS))
--	(cd $(srcdir)/libfguid && $(MAKE) $(AM_MAKEFLAGS))
--	(cd $(srcdir)/libfusn && $(MAKE) $(AM_MAKEFLAGS))
- 	(cd $(srcdir)/libftxr && $(MAKE) $(AM_MAKEFLAGS))
- 	(cd $(srcdir)/po && $(MAKE) $(AM_MAKEFLAGS))
- 
-Index: libftxr/configure.ac
-===================================================================
---- libftxr.orig/configure.ac
-+++ libftxr/configure.ac
-@@ -114,12 +114,6 @@ dnl Generate Makefiles
- AC_CONFIG_FILES([Makefile])
- AC_CONFIG_FILES([include/Makefile])
- AC_CONFIG_FILES([common/Makefile])
--AC_CONFIG_FILES([libcerror/Makefile])
--AC_CONFIG_FILES([libcnotify/Makefile])
--AC_CONFIG_FILES([libuna/Makefile])
--AC_CONFIG_FILES([libfdatetime/Makefile])
--AC_CONFIG_FILES([libfguid/Makefile])
--AC_CONFIG_FILES([libfusn/Makefile])
- AC_CONFIG_FILES([libftxr/Makefile])
- AC_CONFIG_FILES([po/Makefile.in])
- AC_CONFIG_FILES([po/Makevars])