Index: config/ChangeLog
===================================================================
RCS file: /cvs/lyx/lyx-devel/config/ChangeLog,v
retrieving revision 1.95
diff -u -r1.95 ChangeLog
--- config/ChangeLog	2003/03/10 19:18:42	1.95
+++ config/ChangeLog	2003/03/11 13:13:35
@@ -1,3 +1,8 @@
+2003-03-11  Kayvan Sylvan <address@hidden>
+
+	* libtool.m4: Add some checks for Win32 GCC based on
+	info from http://bugzilla.gnome.org/showattachment.cgi?attach_id=12253
+
 2003-03-10  Lars Gullik Bjønnes  <address@hidden>
 
 	* pspell.m4: simplify pspell checking even more
Index: config/libtool.m4
===================================================================
RCS file: /cvs/lyx/lyx-devel/config/libtool.m4,v
retrieving revision 1.5
diff -u -r1.5 libtool.m4
--- config/libtool.m4	2002/08/14 11:24:22	1.5
+++ config/libtool.m4	2003/03/11 13:13:36
@@ -1186,7 +1186,45 @@
   # Microsoft Visual C++.
   if test "$GCC" != yes; then
     with_gnu_ld=no
+  else
+    # Ensure MSVC-compatible struct packing convention.
+    # Depends on GCC version. gcc2 uses -fnative-struct while
+    # gcc3 uses -mms-bitfields.
+    #
+    msnative_struct=''
+    AC_MSG_CHECKING([how to get MSVC-compatible struct packing])
+    case `$CC --version | sed -e 's,\..*,.,' -e q` in
+    2.)
+      if $CC -v --help 2>/dev/null | grep fnative-struct > /dev/null; then
+        msnative_struct='-fnative-struct'
+      fi
+      ;;
+    *)
+      if $CC -v --help 2>/dev/null | grep ms-bitfields > /dev/null; then
+        msnative_struct='-mms-bitfields'
+      fi
+      ;;
+    esac
+    if test x"$msnative_struct" = x; then
+      AC_MSG_RESULT([no way])
+      AC_MSG_WARN([produced libraries might be incompatible with MSVC libs])
+    else
+      CXXFLAGS="$CXXFLAGS $msnative_struct"
+      AC_MSG_RESULT([${msnative_struct}])
+    fi
   fi
+
+  # Export all symbols to Win32 DLL using MinGW 2.0 ld.
+  WIN32_LD_EXPORT_ALL_SYMBOLS=''
+  AC_MSG_CHECKING([whether ld accepts --export-all-symbols])
+  if $LD --help 2>&1 | egrep 'export-all-symbols' > /dev/null; then
+    WIN32_LD_EXPORT_ALL_SYMBOLS='-Wl,--export-all-symbols'
+    AC_MSG_RESULT([yes])
+  else
+    AC_MSG_RESULT([no])
+  fi
+  AC_SUBST(WIN32_LD_EXPORT_ALL_SYMBOLS)
+  
   ;;
 
 esac