split gettext and gettext-tools-libs

The subport gettext-tools-libs provides the libraries for the
gettext tools like msgfmt which are und GPL+3 license. The
gettext tools port can now be marked "installslibs no".

If a package which has a license not compatible with GPL+3, then
it can still use the gettext tools unless it does not link to
the gettext libraries.

devel/gettext/Portfile

@@ -120,6 +120,60 @@ subport ${name}-runtime {
     }
 }
 
+subport ${name}-tools-libs {
+    revision                0
+
+    license                 GPL-3+
+
+    description             GNU internationalization (i18n) and \
+                            localization (l10n) tools libraries
+
+    long_description        ${subport} provides the required libraries \
+                            for tools like msgfmt from gettext
+
+    depends_lib-append      port:libiconv \
+                            port:libtextstyle \
+                            port:gettext-runtime
+
+    # Set configure.dir and build.dir rather than worksrcdir so that the
+    # muniversal portgroup will copy the entire worksrcdir and not just
+    # this subdirectory, because the build compiles files outside of this
+    # directory and we need separate builds of everything for each arch.
+    configure.dir           ${worksrcpath}/${name}-tools
+    build.dir               ${configure.dir}
+
+    configure.args-append   --disable-openmp \
+                            --with-included-libunistring \
+                            --with-included-libxml \
+                            --with-installed-libtextstyle \
+                            --without-emacs
+
+    # Don't use possibly installed cvs or git to create the autopoint
+    # archive because the archives they create for each architecture
+    # under muniversal will differ and cannot be merged.
+    configure.args-append   --without-cvs \
+                            --without-git
+
+    # Don't use xz because then xz would be required by various ports
+    # that just want to use gettext.
+    configure.args-append   --without-xz
+
+    # Prevent the lang-c++ test from failing.
+    # TODO: report this to the developers; there's no reason why
+    # libasprintf should be getting built again. Might be the same as
+    # https://savannah.gnu.org/bugs/?58669
+    configure.args-append   --disable-libasprintf
+
+    post-destroot {
+        # Remove the executables and the libraries provided
+        # by the runtime. Just leave the libraries and headers
+        # for the tools.
+        delete {*}[glob ${destroot}${prefix}/*/libintl.*] \
+            {*}[glob ${destroot}${prefix}/bin/*] \
+            {*}[glob ${destroot}${prefix}/share/*]
+    }
+}
+
 if {${subport} in "${name}-runtime libasprintf"} {
     pre-activate {
         # gettext < 0.20 installed files now installed by gettext-runtime and
@@ -150,7 +204,10 @@ if {${subport} eq ${name}} {
 
     depends_lib-append      port:libiconv \
                             port:libtextstyle \
-                            port:gettext-runtime
+                            port:gettext-runtime \
+                            port:gettext-tools-libs
+
+    installs_libs           no
 
     # Set configure.dir and build.dir rather than worksrcdir so that the
     # muniversal portgroup will copy the entire worksrcdir and not just
@@ -184,7 +241,10 @@ if {${subport} eq ${name}} {
     post-destroot {
         # Remove files already installed by gettext-runtime.
         # https://savannah.gnu.org/bugs/?58669
-        delete {*}[glob ${destroot}${prefix}/*/libintl.*] \
+        # Remove the libraries and headers which are provided
+        # by gettext-tools-libs
+        delete {*}[glob ${destroot}${prefix}/lib/*] \
+            {*}[glob ${destroot}${prefix}/include/*] \
             ${destroot}${prefix}/share/locale/locale.alias
     }