If wayland-scanner.pc can't be found the variables end up being set
irrespectively, leaving the user with odd compiler errors about missing
headers, etc.
---
wayland-scanner.m4 | 2 ++
1 file changed, 2 insertions(+)
diff --git a/wayland-scanner.m4 b/wayland-scanner.m4
index 2b87c5f..4e4222a 100644
--- a/wayland-scanner.m4
+++ b/wayland-scanner.m4
@@ -1,6 +1,8 @@
AC_DEFUN([WAYLAND_SCANNER_RULES], [
PKG_PROG_PKG_CONFIG
+ PKG_CHECK_MODULES([WAYLAND_SCANNER], [wayland-scanner])
+
wayland_scanner=`$PKG_CONFIG --variable=wayland_scanner wayland-scanner`
AC_SUBST([wayland_scanner])
--
1.8.2.1
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