Re: [bug-libunistring] Build Error

[Nicole Mazzuca]

Hi,

I've been trying to solve this in vcpkg, since we've updated to automake 1.16.4 
- it looks like automake 1.16.4 broke your gl_INIT_PACKAGE AM_INIT_AUTOMAKE 
hack.

One way to solve this is:

```patch
--- a/m4/init-package-version.m4
+++ b/m4/init-package-version.m4
@@ -82,9 +82,9 @@
     [AC_SUBST([PACKAGE], [$1])
      AC_SUBST([VERSION], [$2])
     ])
   m4_define([AM_INIT_AUTOMAKE],
     m4_defn([gl_RPL_INIT_AUTOMAKE]))
 ])
-m4_define([gl_INIT_DUMMY], [])
+m4_define([gl_INIT_DUMMY], [dummy])
 AC_DEFUN([gl_RPL_INIT_AUTOMAKE], [
   m4_ifval([$2],
```

And the reason that automake 1.16.4 broke this is this change:

```patch
--- a/m4/init.m4
+++ b/m4/init.m4
@@ -65,5 +65,5 @@
 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 m4_if(
-  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
+  m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
   [ok:ok],,
   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
```

Thanks,
Nicole