Mail Archives: cygwin/2001/09/20/16:13:30
I have a question about the examples. In the Makefile
(for c_and_c++, and c++ at least), there is a reference in
building the objs to the variable DLL_CFLAGS. However,
this does not look like it ever gets set, nor does it appear to
have a value during make execution.
My question is, is this merely a holdover from some previous
versions that got dropped, but the comments never got
removed, or does this variable need to have a value,
and if so, under what conditions?
Thanks.
On Wed, 19 Sep 2001 18:22:41 -0400, Charles Wilson wrote:
>I've updated the dllhelpers package at cygutils
>
>http://www.neuro.gatech.edu/users/cwilson/cygutils/V1.1/dll-stuff/
>
>The new version no longer uses the '--enable-auto-image-base' function
>of the linker; it seems to cause problems under cygwin. Instead,
>DLL-builders should either
>
> a) don't specifiy any image base -- just let the linker use its
>default of 0x10000000. Thus, all DLLs will have the same image base,
>and the windows runtime linker will relocate them when an application
>loads them. However, they won't then conflict with the cygwin1.dll
>(which is absolutely required). Also, runtime relocation is relatively
>inexpensive on windows.
>
> b) explicitly specify an image base for every DLL you build (be
>careful!). -Wl,--image-base=0xXXXXXXXX.
>
>this is explained in the updated documentation within the dllhelpers
>package.
>
>Also, I've added a "c_and_c++" example, with two DLL's -- one C-based
>and one C++based -- which are both used by a single C++ client application.
>
>--Chuck
>
>
>--
>Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
>Bug reporting: http://cygwin.com/bugs.html
>Documentation: http://cygwin.com/docs.html
>FAQ: http://cygwin.com/faq/
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Bug reporting: http://cygwin.com/bugs.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
- Raw text -