fsm_init: fix implicit function declaration _IceTransNoListen #1032
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A declaration is required for `_IceTransNoListen` to link against libICE. `_IceTransNoListen` is declared in X11/Xtrans/Xtrans.h (`xtrans-dev`) only when configured for libICE by defining the following symbols: `ICE_t` `TRANS_SERVER`. (see [libICE configure.ac](https://gitlab.freedesktop.org/xorg/lib/libice/-/blob/master/configure.ac)) Add a check in configure.ac to determine if the build system has X11/Xtrans/Xtrans.h, and define `ICE_t` and `TRANS_SERVER` if it does. Add a preprocessor step in lib/fsm.c to switch between using Xtrans.h or an extern declaration for the `_IceTransNoListen` symbol depending on whether or not the build system has Xtrans.h. Fixes fvwmorg#1031 Signed-off-by: Kara <33235324+kro-cat@users.noreply.github.com>
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What does this PR do?
Add a check in configure.ac to determine if the build system has X11/Xtrans/Xtrans.h, and define
ICE_tandTRANS_SERVERif it does.Add a preprocessor step in lib/fsm.c to switch between using Xtrans.h or an extern declaration for the
_IceTransNoListensymbol depending on whether or not the build system has Xtrans.h.Issue number(s)
Fixes Implicit function _IceTransNoListen in fsm.c #1031