bump pslib to 0.4.8

now with -lm needed

build-aux/install-pslib

@@ -1,11 +1,11 @@
 #!/bin/sh
 set -e
-VER=0.4.6
+VER=0.4.8
 wget -q -O pslib-$VER.tar.gz https://sourceforge.net/projects/pslib/files/pslib/$VER/pslib-$VER.tar.gz/download
 tar xfz pslib-$VER.tar.gz
 cd pslib-$VER
 # sh autogen.sh
-./configure --prefix=/usr
+./configure --disable-nls --prefix=/usr
 make
 #make check
 sudo make install

configure.ac

@@ -71,7 +71,7 @@ AC_C_RESTRICT
 dnl Checks for libraries
 AM_ICONV
 
-AC_CHECK_LIB([ps],[PS_open_file],
+AC_CHECK_LIB([ps -lm],[PS_open_file],
   libredwg_have_libps=yes,
   libredwg_have_libps=no)
 
@@ -227,6 +227,9 @@ if test x$ax_is_release = xyes; then
    if test x$have_libxml2 != xyes; then
      AC_MSG_WARN([libxml-2.0 for test/xmlsuite missing])
    fi
+   if test x$libredwg_have_libps != xyes; then
+     AC_MSG_WARN([pslib for dwg2ps missing with release])
+   fi
    AC_DEFINE([IS_RELEASE],1,[Define to 1 if this is a release,
 skipping unstable DWG features, unknown DWG versions and objects.])
 fi