diff --git a/license.txt b/license.txt
index 4e57186c24742c8bcb55593d0c3e0ef80f371fe7..1cc2ab8daeaa2b2407674db1c2c56a2eec3c34ea 100644
--- a/license.txt
+++ b/license.txt
@@ -242,7 +242,7 @@ Copyright: 2008 Benjamin Kosnik <bkoz@redhat.com>
2019 Enji Cooper <yaneurabeya@gmail.com>
License: FSFAP
-Files: m4/ax_latex_class.m4 m4/ax_latex_test.m4 m4/ax_tex_test.m4
+Files: m4/ax_latex_class.m4 m4/ax_latex_test.m4
Copyright: 2008 Boretti Mathieu <boretti@eig.unige.ch>
2009 Dynare Team
License: LGPL-2.1+
diff --git a/m4/ax_tex_test.m4 b/m4/ax_tex_test.m4
deleted file mode 100644
index 323ebe55a6821194133ce9a35aed6e902c7f45ae..0000000000000000000000000000000000000000
--- a/m4/ax_tex_test.m4
+++ /dev/null
@@ -1,58 +0,0 @@
-# ===========================================================================
-# http://www.nongnu.org/autoconf-archive/ax_latex_test.html
-# ===========================================================================
-#
-# OBSOLETE MACRO
-#
-# Deprecated because of licensing issues. The Lesser GPL imposes licensing
-# restrictions on the generated configure script unless it is augmented
-# with an Autoconf Exception clause.
-#
-# SYNOPSIS
-#
-# AX_TEX_TEST(FILEDATA,VARIABLETOSET,[NOCLEAN])
-#
-# DESCRIPTION
-#
-# This macros execute the pdftex application with FILEDATA as input and set
-# VARIABLETOSET to yes or no depending on the result. If NOCLEAN is set,
-# the folder used for the test is not delete after testing.
-#
-# The macro assumes that the variable PDFTEX is set.
-#
-# Adapted from the macro AX_LATEX_TEST by Sébastien Villemot.
-#
-# LICENSE
-#
-# Copyright © 2008 Boretti Mathieu <boretti@eig.unige.ch>
-# Copyright © 2009 Dynare Team
-#
-# This library is free software; you can redistribute it and/or modify it
-# under the terms of the GNU Lesser General Public License as published by
-# the Free Software Foundation; either version 2.1 of the License, or (at
-# your option) any later version.
-#
-# This library is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
-# General Public License for more details.
-#
-# You should have received a copy of the GNU Lesser General Public License
-# along with this library. If not, see <http://www.gnu.org/licenses/>.
-
-AC_DEFUN([AX_TEX_TEST],[
-rm -rf conftest.dir/.acltx
-AS_MKDIR_P([conftest.dir/.acltx])
-cd conftest.dir/.acltx
-m4_ifval([$2],[$2="no"; export $2;])
-cat > conftest.tex << ACLEOF
-$1
-ACLEOF
-cat conftest.tex | $PDFTEX 2>&1 1>output m4_ifval([$2],[&& $2=yes])
-cd ..
-cd ..
-sed 's/^/| /' conftest.dir/.acltx/conftest.tex >&5
-echo "$as_me:$LINENO: executing cat conftest.tex | $PDFTEX" >&5
-sed 's/^/| /' conftest.dir/.acltx/output >&5
-m4_ifval([$3],,[rm -rf conftest.dir/.acltx])
-])