--- a/aclocal.m4	Mon Aug 13 11:42:27 2007 +0200
+++ b/aclocal.m4	Mon Aug 13 11:43:24 2007 +0200
@@ -88,11 +88,11 @@
   wl='-Wl,'
 
   case "$xehost_os" in
-  aix3* | aix4* | irix5* | irix6* | osf3* | osf4*)
+  aix[[3-9]]* | irix[[5-9]]* | osf[[3-9]])
     # PIC is the default for these OSes.
     ;;
 
-  aix3* | aix4* | os2*)
+  os2*)
     # We can build DLLs from non-PIC.
     ;;
   amigaos*)
@@ -117,7 +117,7 @@
     dll_cflags='+Z'
     ;;
 
-  irix5* | irix6*)
+  irix[[5-9]]*)
     wl='-Wl,'
     # PIC (with -KPIC) is the default.
     ;;
@@ -126,11 +126,16 @@
     # We can build DLLs from non-PIC.
     ;;
 
-  osf3* | osf4*)
+  osf[[3-9]]*)
     # All OSF/1 code is PIC.
     wl='-Wl,'
     ;;
 
+  aix[[3-9]]*)
+    # All AIX code is PIC.
+    wl='-Wl,'
+    ;;
+
   sco3.2v5*)
     dll_cflags='-belf -Kpic'
     wl='-Wl,'
@@ -243,7 +248,7 @@
   xldf="-shared"
 else # Not using GCC
   case "$xehost_os" in
-    aix3* | aix4*)
+    aix[[3-9]]*)
       xldf="-bE:ELLSONAME.exp -H512 -T512 -bhalt:4 -bM:SRE -bnoentry -lc"
       xcldf="${wl}-bE:ELLSONAME.exp ${wl}-H512 ${wl}-T512 ${wl}-bhalt:4 ${wl}-bM:SRE ${wl}-bnoentry ${wl}-lc"
       ;;
@@ -262,7 +267,7 @@
       xcldf="${wl}-b ${wl}+s"
       ;;
 
-    irix5* | irix6* | osf3* | osf4*)
+    irix[[5-9]]* | osf[[3-9]]*)
       xcldf="${wl}-shared"
       xldf="-shared"
       ;;
@@ -415,7 +420,7 @@
       dll_ldflags=$xldf
       ;;
 
-    aix4*)
+    aix[[4-9]]*)
       dll_ldflags=$xcldf
       ;;
 
@@ -445,7 +450,7 @@
       dll_ldflags=$xldf
       ;;
 
-    irix5* | irix6*)
+    irix[[5-9]]*)
       dll_ld=$LTLD
       dll_ldflags=$xldf
       ;;
@@ -532,11 +537,7 @@
 
 if test -z "$ld_dynamic_link_flags"; then
   case "$xehost_os" in
-  aix3*)
-    ld_dynamic_link_flags=
-    ;;
-
-  aix4*)
+  aix[[3-9]]*)
     ld_dynamic_link_flags=
     ;;
 
@@ -556,7 +557,7 @@
     ld_dynamic_link_flags="${wl}-E"
     ;;
 
-  irix5* | irix6*)
+  irix[[5-9]]*)
     ld_dynamic_link_flags=
     ;;