bison: m4 needs MMU

Fixes http://autobuild.buildroot.net/results/0bb659881ed6a01745f596f00da9acbef02a4c31/

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

diff --git a/package/bison/Config.in b/package/bison/Config.in
index da0ac3f1ef896064597dc91c0801b820f5ff79c6..1a485c406194a329b6e9e27f608d8b1527765d04 100644 (file)
--- a/package/bison/Config.in
+++ b/package/bison/Config.in
@@ -2,6 +2,8 @@ config BR2_PACKAGE_BISON
        bool "bison"
        depends on BR2_USE_WCHAR
        select BR2_PACKAGE_M4
+       # m4 uses fork()
+       depends on BR2_USE_MMU
        help
          General-purpose parser generator that converts a
          grammar description for an LALR context-free grammar into a C