configure.ac: Drop unneeded AC_MSG_ERROR.

The default behaviour of PKG_CHECK_MODULES is to abort with an error
anyway, but it will also print a more usable error message and hints
for the user about how to use PKG_CONFIG_PATH and so on.

diff --git a/configure.ac b/configure.ac
index b441e50408efb3d48ed2458d6e2e6d82f79ac316..96c16d2ad782a1aa81104345ca9defae0888f6e1 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -85,8 +85,7 @@ case $target_os in
 *linux*)
        # On Linux libudev is currently a hard requirement.
        PKG_CHECK_MODULES([libudev], [libudev >= 0],
-               [CFLAGS="$CFLAGS $libudev_CFLAGS"; LIBS="$LIBS $libudev_LIBS"],
-               [AC_MSG_ERROR([libudev.h not found])])
+               [CFLAGS="$CFLAGS $libudev_CFLAGS"; LIBS="$LIBS $libudev_LIBS"])
        ;;
 *darwin*)
        LDFLAGS="$LDFLAGS -Wl,-framework -Wl,IOKit -Wl,-framework -Wl,CoreFoundation"