Drop useless AX_LATEX_BIBTEX_TEST m4 macro.

(cherry picked from commit 72c6fd5f)

license.txt

@@ -243,7 +243,7 @@ Files: m4/ax_compare_version.m4
 Copyright: 2008 Tim Toolan <toolan@ele.uri.edu>
 License: permissive-autoconf
 
-Files: m4/ax_latex_bibtex_test.m4 m4/ax_latex_class.m4 m4/ax_tex_test.m4
+Files: m4/ax_latex_class.m4 m4/ax_tex_test.m4
 Copyright: 2008 Boretti Mathieu <boretti@eig.unige.ch>
            2009 Dynare Team
 License: LGPL-2.1+

m4/ax_latex_bibtex_test.m4

-# ===========================================================================
-#          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_LATEX_BIBTEX_TEST(FILEDATA,BIBDATA,VARIABLETOSET,[NOCLEAN])
-#
-# DESCRIPTION
-#
-#   This macros creates a bib file called contest.bib with BIBDATA,
-#   executes the latex application with FILEDATA as input, then runs
-#   bibtex on the resulting aux file, and finally sets VARIABLETOSET
-#   to yes or no depending on the result. If NOCLEAN is set, the folder
-#   used for the test is not deleted after testing.
-#
-#   The macro assumes that the variables PDFLATEX and BIBTEX are set.
-#
-#   Adapted from the macro AX_LATEX_TEST by Sébastien Villemot.
-#
-# LICENSE
-#
-#   Copyright (c) 2008 Boretti Mathieu <boretti@eig.unige.ch>
-#   Copyright (c) 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_LATEX_BIBTEX_TEST],[
-rm -rf conftest.dir/.acltx
-AS_MKDIR_P([conftest.dir/.acltx])
-cd conftest.dir/.acltx
-m4_ifval([$3],[$3="no"; export $3;])
-cat > conftest.tex << ACLEOF
-$1
-ACLEOF
-cat > conftest.bib << ACLEOF
-$2
-ACLEOF
-$PDFLATEX conftest 2>&1 1>output
-$BIBTEX conftest 2>&1 1>output2 m4_ifval([$3],[&& $3=yes])
-cd ..
-cd ..
-sed 's/^/| /' conftest.dir/.acltx/conftest.tex >&5
-echo "$as_me:$LINENO: executing $PDFLATEX conftest" >&5
-sed 's/^/| /' conftest.dir/.acltx/output >&5
-echo "$as_me:$LINENO: executing $BIBTEX conftest" >&5
-sed 's/^/| /' conftest.dir/.acltx/output2 >&5
-m4_ifval([$4],,[rm -rf conftest.dir/.acltx])
-])