[Buildroot] [git commit branch/next] canfestival: comment on musl disable

commit: https://git.buildroot.net/buildroot/commit/?id=ee5d4b72b9ea0f5f446acd579cfa2f0cb1311378
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/next

Based on commit 4d00a4058b9e5 (can-festival: disable on musl) and a previous
fix attempt[1], add a comment explaining why build with musl is disabled.

[1] http://patchwork.ozlabs.org/patch/509731/

Cc: Arnout Vandecappelle <redacted>
Cc: "Yann E. MORIN" <redacted>
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Thomas Petazzoni <redacted>
---
 package/canfestival/Config.in | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/canfestival/Config.in b/package/canfestival/Config.in
index 5522afe..ca94956 100644
--- a/package/canfestival/Config.in
+++ b/package/canfestival/Config.in

@@ -11,7 +11,7 @@ comment "canfestival needs a glibc or uClibc toolchain w/ threads and dynamic li
 config BR2_PACKAGE_CANFESTIVAL
 	bool "canfestival"
 	depends on BR2_PACKAGE_CANFESTIVAL_ARCH_SUPPORTS
-	depends on !BR2_TOOLCHAIN_USES_MUSL
+	depends on !BR2_TOOLCHAIN_USES_MUSL # sigval_t
 	depends on BR2_TOOLCHAIN_HAS_THREADS
 	depends on !BR2_STATIC_LIBS
 	help