diff --git a/Packages/Installation/doc_tex/installation/installation.tex b/Packages/Installation/doc_tex/installation/installation.tex
index 57b5d05e139..e702e09c47d 100644
--- a/Packages/Installation/doc_tex/installation/installation.tex
+++ b/Packages/Installation/doc_tex/installation/installation.tex
@@ -1404,7 +1404,8 @@ If you cannot (or do not want to) install \gnu -binutils, there is a
 workaround that lets you compile, link and run your programs, but it
 prevents debugging, since the executables have to be stripped. In
 short the workaround is to compile with \texttt{-g} and to link with
-\texttt{-z nodefs -s}. 
+\texttt{-z nodefs -s} on Solaris, \texttt{-U -s} on Irix,
+respectively.
 
 In order to still have portable makefiles (see
 section\ref{sec:makefiles}), we define flags
diff --git a/Packages/Installation/install_cgal b/Packages/Installation/install_cgal
index 657040cb34d..eb542d7187d 100755
--- a/Packages/Installation/install_cgal
+++ b/Packages/Installation/install_cgal
@@ -5,7 +5,7 @@
 # $Id$
 # ---------------------------------------------------------------------
 # 
-# Copyright (c) 1998, 1999 The CGAL Consortium
+# Copyright (c) 1998, 1999, 2000 The CGAL Consortium
 #
 # This software and related documentation is part of the
 # Computational Geometry Algorithms Library (CGAL).
@@ -720,6 +720,7 @@ set_compiler_flags()
     # defaults:
     ADDITIONAL_CXXFLAGS=""
     ADDITIONAL_LDFLAGS=""
+    LONG_NAME_PROBLEM_LDFLAGS=""
     CGAL_LIB_CXXFLAGS=""
     CGAL_LIB_LDFLAGS=""
     CGAL_LIB_CREATE="ar cr ''"
@@ -829,6 +830,7 @@ set_compiler_flags()
 	*IRIX*g++*)
 	    #### settings for egcs/gcc2.8 on irix
 	    ADDITIONAL_CXXFLAGS="-Wall -ftemplate-depth-25"
+	    LONG_NAME_PROBLEM_LDFLAGS="-U -s"
 	    CGAL_SHARED_LIB_LDFLAGS="-lm"
 	    CGAL_SHARED_LIB_CREATE="\$(CGAL_CXX) -shared"
 	    RUNTIME_LINKER_FLAG="-rpath "
@@ -857,6 +859,7 @@ set_compiler_flags()
 	*SunOS*5.*g++*)
 	    #### settings for egcs/gcc2.8 on solaris
 	    ADDITIONAL_CXXFLAGS="-Wall -ftemplate-depth-25"
+	    LONG_NAME_PROBLEM_LDFLAGS="-z nodefs -s"
 	    CGAL_SHARED_LIB_CREATE="\$(CGAL_CXX) -G"
 	    WINDOW_DIR="/usr/openwin/lib"
 	    RUNTIME_LINKER_FLAG="-R "
@@ -4191,7 +4194,7 @@ write_linker_flags()
   print_as_shell_comment \
     "*** to work around the long-name-problem with sun as/ld" >> ${FILE}
   if [ -n "${LONG_NAME_PROBLEM}" ]; then
-    ${_printf} "%s\n\n" "LONG_NAME_PROBLEM_LDFLAGS = -z nodefs -s" \
+    ${_printf} "%s\n\n" "LONG_NAME_PROBLEM_LDFLAGS = ${LONG_NAME_PROBLEM_LDFLAGS}" \
     >> ${FILE}
   else
     ${_printf} "%s\n\n" "LONG_NAME_PROBLEM_LDFLAGS =" >> ${FILE}
diff --git a/Packages/Installation/version b/Packages/Installation/version
index 65982a3a0de..ffe871de064 100644
--- a/Packages/Installation/version
+++ b/Packages/Installation/version
@@ -1,2 +1,2 @@
-1.97 (17 February 2000)
+1.98 (24 February 2000)
 maintainer: Michael Hoffmann <hoffmann@inf.ethz.ch>