doc: Use rsvg-convert rather than inkscape

.github/workflows/build-idzebra.yaml

@@ -19,7 +19,7 @@ jobs:
    - name: Install required and optional dependencies
      run: >
       sudo apt install autoconf automake libtool gcc make bison
-      tclsh xsltproc docbook docbook-xml docbook-xsl inkscape
+      tclsh xsltproc docbook docbook-xml docbook-xsl librsvg2-bin
       libexpat1-dev libbz2-dev tcl-dev zlib1g-dev
       pkg-config libxslt1-dev libgnutls28-dev libicu-dev
    - name: Run buildconf for YAZ

buildconf.sh

@@ -34,8 +34,8 @@ Or just build the Debian packages without configuring
   dpkg-buildpackage -rfakeroot
 
 When building from Git, you need these Debian packages:
-  autoconf automake libtool gcc tcl8.5
-  xsltproc docbook docbook-xml docbook-xsl inkscape
+  autoconf automake libtool gcc tclsh
+  xsltproc docbook docbook-xml docbook-xsl librsvg2-bin
   libxslt1-dev libgnutls-dev libreadline5-dev libexpat1-dev
   pkg-config libexpat1-dev
 

doc/Makefile.am

@@ -1,7 +1,5 @@
 SUBDIRS = common
 
-INKSCAPE=inkscape
-
 docdir=$(datadir)/doc/$(PACKAGE)$(PACKAGE_SUFFIX)
 
 XMLMAN = zebraidx.xml zebrasrv.xml idzebra-config.xml idzebra-abs2dom.xml
@@ -29,7 +27,7 @@ XMLFILES =  \
    zebrasrv-virtual.xml \
    local.ent
 
-#examples.xml 
+#examples.xml
 #quickstart.xml
 
 
@@ -114,10 +112,10 @@ uninstall-hook:
 	rm -r $(DESTDIR)$(docdir)
 
 domfilter.png: domfilter.svg
-	unset DISPLAY; ${INKSCAPE} --export-png=$@ --export-width=600 $?
+	rsvg-convert -o $@ -w 600 $?
 
 domfilter.eps: domfilter.svg
-	unset DISPLAY; ${INKSCAPE} --export-eps=$@ $?
+	rsvg-convert -f eps -o $@ $?
 
 doc-clean:
 	rm -f manref.xml *.html *.pdf *.[0-9] domfilter.png domfilter.eps