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gnu: sdl2: Use udev to discover input devices.

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Without udev SDL falls back on custom detection code, which blocks every three
seconds while checking for new devices.

* gnu/packages/sdl.scm (sdl2)[inputs]: Add eudev.
[arguments]<#:make-flags>: Add LDFLAGS to include eudev in rpath so that
dlopen can find it.

Signed-off-by: Marius Bakke <mbakke@fastmail.com>
This commit is contained in:
Timotej Lazar 2020-03-24 15:10:36 +01:00 • committed by Marius Bakke
parent 3ccfa4048a
commit 9d4ed35703
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1 changed files with 14 additions and 8 deletions
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22
gnu/packages/sdl.scm
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@ -132,20 +132,26 @@ joystick, and graphics hardware.")
"--disable-kmsdrm-shared") "--disable-kmsdrm-shared")
,flags)) ,flags))
((#:make-flags flags ''()) ((#:make-flags flags ''())
;; Add the Fcitx header files to GCCs "system header" search path `(cons*
;; in order to suppress compiler warnings induced by those: ;; Add the Fcitx header files to GCCs "system header" search path
;; .../include/fcitx-utils/utarray.h:178:9: error: ISO C90 forbids ;; in order to suppress compiler warnings induced by those:
;; mixed declarations and code [-Werror=declaration-after-statement] ;; .../include/fcitx-utils/utarray.h:178:9: error: ISO C90 forbids
`(append (list (string-append "C_INCLUDE_PATH=" ;; mixed declarations and code [-Werror=declaration-after-statement]
(assoc-ref %build-inputs "fcitx") (string-append "C_INCLUDE_PATH="
"/include")) (assoc-ref %build-inputs "fcitx") "/include")
,flags)))) ;; SDL dlopens libudev, so make sure it is in rpath. This overrides
;; the LDFLAG set in sdl’s configure-flags, which isn’t necessary
;; as sdl2 includes Mesa by default.
(string-append "LDFLAGS=-Wl,-rpath,"
(assoc-ref %build-inputs "eudev") "/lib")
,flags))))
(inputs (inputs
;; SDL2 needs to be built with ibus support otherwise some systems ;; SDL2 needs to be built with ibus support otherwise some systems
;; experience a bug where input events are doubled. ;; experience a bug where input events are doubled.
;; ;;
;; For more information, see: https://dev.solus-project.com/T1721 ;; For more information, see: https://dev.solus-project.com/T1721
(append `(("dbus" ,dbus) (append `(("dbus" ,dbus)
("eudev" ,eudev) ; for discovering input devices
("fcitx" ,fcitx) ; helps with CJK input ("fcitx" ,fcitx) ; helps with CJK input
("glib" ,glib) ("glib" ,glib)
("ibus" ,ibus) ("ibus" ,ibus)