Currently the autoconf files in newlib-cygwin repo are in 2.64 version
but the latest autoconf package is version 2.69. So, autoreconf
command shows errors. Possible diff attached.
diff --git a/config/override.m4 b/config/override.m4
index 52bd1c3..1c3c298 100644
--- a/config/override.m4
+++ b/config/override.m4
@@ -29,7 +29,7 @@ m4_copy_force([_AC_PREREQ], [AC_PREREQ])
dnl Ensure exactly this Autoconf version is used
m4_ifndef([_GCC_AUTOCONF_VERSION],
- [m4_define([_GCC_AUTOCONF_VERSION], [2.64])])
+ [m4_define([_GCC_AUTOCONF_VERSION], [2.69])])
dnl Test for the exact version when AC_INIT is expanded.
dnl This allows to update the tree in steps (for testing)
@@ -56,7 +56,7 @@ GNU M4 1.4.16 or newer and set the M4 environment
variable]))])
dnl Fix 2.64 cross compile detection for AVR and RTEMS
dnl by not trying to compile fopen.
-m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.64],
+m4_if(m4_defn([m4_PACKAGE_VERSION]), [2.69],
[m4_foreach([_GCC_LANG], [C, C++, Fortran, Fortran 77],
[m4_define([_AC_LANG_IO_PROGRAM(]_GCC_LANG[)],
m4_defn([AC_LANG_PROGRAM(]_GCC_LANG[)]))])])
diff --git a/configure.ac b/configure.ac
index cf856e5..f1d4af2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,7 +31,7 @@ m4_include([lt~obsolete.m4])
m4_include([config/isl.m4])
AC_INIT(move-if-change)
-AC_PREREQ(2.64)
+AC_PREREQ(2.69)
AC_DISABLE_OPTION_CHECKING
progname=$0
--
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