flex: propagate m4 dependency on wchar

Commit fe6a9e5e9d4046173a60235f8fd9a3b4746929c6 missed the fact that
m4 has a dependency on wide char support, so this dependency should be
propagated to flex.

Fixes:

  http://autobuild.buildroot.org/results/495/49502b2e33a346b2fcebf5e2da00af2661b54d6e/build-end.log

[Peter: Note where wchar dep comes from, show comment if not available]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/package/flex/Config.in b/package/flex/Config.in
index 1ecd0c3572fd619812622528d36c6ec3b40b218e..4fbc56c0a98008b35d135ea50934b9224ccc6280 100644 (file)
--- a/package/flex/Config.in
+++ b/package/flex/Config.in
@@ -14,5 +14,9 @@ config BR2_PACKAGE_FLEX_BINARY
        depends on BR2_PACKAGE_FLEX
        # runtime dependency
        select BR2_PACKAGE_M4
+       depends on BR2_USE_WCHAR # m4
        help
          Install the flex binary tool in the target filesystem.
+
+comment "flex binary requires a toolchain with WCHAR support"
+       depends on !BR2_USE_WCHAR