Minor change for cygwin, libtool-1.5.22

[Charles Wilson]

I ran across an issue when working with CVS gettext on cygwin.  When 
building objects destined for inclusion in a DLL (so-called PIC objects, 
even tho all .o's are "position independent" on MSWin), cygwin ought to 
define DLL_EXPORT just like mingw.  Even though we don't really need to 
for auto-import, there are projects that try to do things the Microsoft 
Way with declspec, instead -- and use --disable-auto-import.  As it 
happens, gettext post-0.14.5 will be one of those.

--
Chuck

2006-04-22  Charles Wilson  <address@hidden>

        * libtool.m4: define DLL_EXPORT for PIC objects on cygwin


diff -urN -x .build -x .inst -x .sinst -x '*~' libtool-1.5.22-orig/libtool.m4 
libtool-1.5.22/libtool.m4
--- libtool-1.5.22-orig/libtool.m4      2005-12-18 16:53:17.000000000 -0500
+++ libtool-1.5.22/libtool.m4   2006-04-19 01:16:17.234375000 -0400
@@ -4838,12 +4838,14 @@
       # like `-m68040'.
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 
-malways-restore-a4'
       ;;
-    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
-    mingw* | os2* | pw32*)
+    mingw* | cygwin* | os2* | pw32*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
+      # Even tho PIC is default for cygwin, still need this for old-style
+      # (--disable-auto-import) libraries
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
       ;;
     darwin* | rhapsody*)
@@ -5111,13 +5113,15 @@
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 
-malways-restore-a4'
       ;;
 
-    beos* | cygwin* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+    beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
       # PIC is the default for these OSes.
       ;;
 
-    mingw* | pw32* | os2*)
+    mingw* | cygwin* | pw32* | os2*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
+      # Even tho PIC is default for cygwin, still need this for old-style
+      # (--disable-auto-import) libraries
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
       ;;
 
@@ -5185,9 +5189,11 @@
        esac
        ;;
 
-    mingw* | pw32* | os2*)
+    mingw* | cygwin* | pw32* | os2*)
       # This hack is so that the source file can tell whether it is being
       # built for inclusion in a dll (and should export symbols for example).
+      # Even tho PIC is default for cygwin, still need this for old-style
+      # (--disable-auto-import) libraries
       _LT_AC_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'
       ;;