On Sat, Aug 25, 2001 at 08:15:45PM -0400, Bruce Momjian wrote:

> Can someone research this and figure out what the proper solution for
> this is?  Seems we are going around in circles if we keep
> adding/removing DLLIMPORT.

I believe that the attached patch is the correct solution --  I apologize
for the gyrations.  With the attached patch, Cygwin libpq++ builds
cleanly again.  The root cause was that DLLIMPORT was defaulting to
__declspec(dllimport) since BUILDING_DLL was *not* defined when building
the libpq++ DLL.

Unfortunately, to test my patch requires changing the following makefile:

    src/interfaces/libpq++/examples/Makefile

and the #includes in all of the *.cc to build against the source tree
instead of the following hardcoded installation directory structure:

    /usr/local/pgsql

I was able to manually build

    src/interfaces/libpq++/examples/testlibpq0.exe

against my Cygwin libpq++ without errors.  However, I have not tried to
actually test testlibpq0.exe.

Is this sufficient?  Or, do you want me to clean up libpq++/examples too?
(Or, is it silly to even ask? :,))  Let me know how you want to proceed and
I will submit a patch to pgsql-patches.

Jason Tishler

Author: bmomjian

src/makefiles/Makefile.win

@@ -1,4 +1,4 @@
-# $Header: /cvsroot/pgsql/src/makefiles/Attic/Makefile.win,v 1.14 2001/08/29 19:14:40 petere Exp $
+# $Header: /cvsroot/pgsql/src/makefiles/Attic/Makefile.win,v 1.15 2001/09/06 02:58:33 momjian Exp $
 LDFLAGS+= -g
 DLLTOOL= dlltool
 DLLWRAP= dllwrap
@@ -28,6 +28,10 @@ ifeq ($(findstring ecpg/lib,$(subdir)), ecpg/lib)
 override CPPFLAGS+= -DBUILDING_DLL=1
 endif
 
+ifeq ($(findstring interfaces/libpq++,$(subdir)), interfaces/libpq++)
+override CPPFLAGS+= -DBUILDING_DLL=1
+endif
+
 ifeq ($(findstring src/pl/plpython,$(subdir)), src/pl/plpython)
 override CPPFLAGS+= -DUSE_DL_IMPORT
 endif