configure: use grep in quiet mode, rather than piping stderr/stdout to /dev/null

grep -q is easier to read and consistent with the rest of configure.ac.

Signed-off-by: Emil Velikov <[email protected]>
Reviewed-by: Matt Turner <[email protected]>

1 files changed, 6 insertions, 6 deletions

diff --git a/configure.ac b/configure.ac
index 03c1d312048..d7dbd1ede72 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1456,15 +1456,15 @@ else
     EGL_NATIVE_PLATFORM="_EGL_INVALID_PLATFORM"
 fi
 
-if echo "$egl_platforms" | grep 'x11' >/dev/null 2>&1; then
+if echo "$egl_platforms" | grep -q 'x11'; then
     GALLIUM_WINSYS_DIRS="$GALLIUM_WINSYS_DIRS sw/xlib"
     NEED_WINSYS_XLIB=yes
 fi
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_X11, echo "$egl_platforms" | grep 'x11' >/dev/null 2>&1)
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_WAYLAND, echo "$egl_platforms" | grep 'wayland' >/dev/null 2>&1)
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_DRM, echo "$egl_platforms" | grep 'drm' >/dev/null 2>&1)
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_FBDEV, echo "$egl_platforms" | grep 'fbdev' >/dev/null 2>&1)
-AM_CONDITIONAL(HAVE_EGL_PLATFORM_NULL, echo "$egl_platforms" | grep 'null' >/dev/null 2>&1)
+AM_CONDITIONAL(HAVE_EGL_PLATFORM_X11, echo "$egl_platforms" | grep -q 'x11')
+AM_CONDITIONAL(HAVE_EGL_PLATFORM_WAYLAND, echo "$egl_platforms" | grep -q 'wayland')
+AM_CONDITIONAL(HAVE_EGL_PLATFORM_DRM, echo "$egl_platforms" | grep -q 'drm')
+AM_CONDITIONAL(HAVE_EGL_PLATFORM_FBDEV, echo "$egl_platforms" | grep -q 'fbdev')
+AM_CONDITIONAL(HAVE_EGL_PLATFORM_NULL, echo "$egl_platforms" | grep -q 'null')
 
 AM_CONDITIONAL(HAVE_EGL_DRIVER_DRI2, test "x$HAVE_EGL_DRIVER_DRI2" != "x")