On 2003-12-06T00:56-0500, Charles Wilson wrote:
) -release? If not for every platform, what is the advisability of our
) cygwin maintainer making that change for his cygwin releases? Is there
) a way to do "#if CYGWIN then libMagick_LDFLAGS = -release ..... else
) libMagick_LDFLAGS = -version-info ...." ?
While it seems to be obviated in this case, just for future reference I
thought I'd mention how I do something similar to this in the naim package.
In configure.in I use:
AC_CANONICAL_HOST
AC_MSG_CHECKING([for Cygwin])
case $host_os in
*cygwin*)
AC_MSG_RESULT(yes)
AC_SUBST([cygwindocdir], ['${datadir}/doc/Cygwin'])
AC_DEFINE(FAKE_MAIN_STUB, 1, [Define to enable a workaround on Windows
for module loading])
AC_DEFINE(DLOPEN_SELF_LIBNAIM_CORE, 1, [Define to dlopen libnaim_core
rather than NULL])
AM_CONDITIONAL(CYGWIN, true)
;;
*)
AC_MSG_RESULT(no)
AC_SUBST([cygwindocdir], [''])
AM_CONDITIONAL(CYGWIN, false)
;;
esac
The magic part is AM_CONDITIONAL(CYGWIN, ...).
This can be used in Makefile.am as:
if CYGWIN
libMagick_LDFLAGS = -release ...
else
libMagick_LDFLAGS = -version-info ...
endif
I use it to do some hideous things with .dll files; as best as I can tell,
dlopen()ed .dll's can't directly access symbols in the .exe that opened
them, but they can access symbols in other .dll files. So, on Cygwin I
compile what is normally "naim" into libnaim_core.dll and create a stub
naim.exe that just loads libnaim_core and executes libnaim_core's main().
--
Daniel Reed <[EMAIL PROTECTED]> http://naim-users.org/nmlorg/ http://naim.n.ml.org/
"I don't believe in making something user friendly just for the sake of
being user friendly, though; if you're decreasing the users' available
power, you're not really being all that friendly to them."
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