Add -autoconf patch for autoconf 2.71 (bz 1943043).

ocaml-ocplib-simplex-autoconf.patch

@@ -0,0 +1,25 @@
+--- configure.in.orig	2017-08-23 06:49:52.000000000 -0600
++++ configure.in	2021-03-29 14:18:01.847530174 -0600
+@@ -29,9 +29,13 @@
+ #   OCAMLWIN32    "yes"/"no" depending on Sys.os_type = "Win32"
+ #   EXE           ".exe" if OCAMLWIN32=yes, "" otherwise
+ 
++m4_define([ocplib_simplex_VERSION],
++  m4_esyscmd([sed -rn 's/^version:[[:blank:]]*"([^"]*)"/\1/p' opam]))
++AC_INIT([ocplib-simplex], m4_defn([ocplib_simplex_VERSION]))
++
+ # check for one particular file of the sources 
+ # ADAPT THE FOLLOWING LINE TO YOUR SOURCES!
+-AC_INIT(src/core.ml)
++AC_CONFIG_SRCDIR([src/core.ml])
+ 
+ # Check for Ocaml compilers
+ 
+@@ -137,5 +141,6 @@ AC_SUBST(OCAMLWIN32)
+ AC_SUBST(EXE)
+ 
+ # Finally create the Makefile.configurable from Makefile.configurable.in
+-AC_OUTPUT(Makefile)
++AC_CONFIG_FILES([Makefile])
++AC_OUTPUT
+ chmod a-w Makefile

ocaml-ocplib-simplex.spec

@@ -6,7 +6,7 @@
 
 Name:           ocaml-%{pkgname}
 Version:        0.4
-Release:        21%{?dist}
+Release:        22%{?dist}
 Summary:        Simplex algorithm for solving systems of linear inequalities
 
 # The same exception to clause 6 as provided by ocaml applies to this package.
@@ -17,6 +17,8 @@ Source0:        %{url}/archive/v%{version}/%{pkgname}-%{version}.tar.gz
 Patch0:         %{name}-tests.patch
 # Upstream patch to fix DESTDIR
 Patch1:         %{name}-destdir.patch
+# Update configure.in for autoconf 2.71
+Patch2:         %{name}-autoconf.patch
 
 BuildRequires:  autoconf
 BuildRequires:  make
@@ -81,6 +83,9 @@ make local-tests
 %{_libdir}/ocaml/*/*.mli
 
 %changelog
+* Mon Mar 29 2021 Jerry James <loganjerry@gmail.com> - 0.4-22
+- Add -autoconf patch for autoconf 2.71 (bz 1943043)
+
 * Mon Mar  1 16:58:01 GMT 2021 Richard W.M. Jones <rjones@redhat.com> - 0.4-21
 - OCaml 4.12.0 build