config: FEDORA_COMPAT option (so far only tweaks uname)

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

2 files changed, 14 insertions, 1 deletions

diff --git a/Config.in b/Config.in
index cfb3aa0ee..1359848bf 100644
--- a/Config.in
+++ b/Config.in
@@ -33,6 +33,19 @@ config EXTRA_COMPAT
           some GNU extensions in libc. You probably only need this option
           if you plan to run busybox on desktop.
 
+config FEDORA_COMPAT
+        bool "Building for Fedora distribution"
+        default n
+        help
+        This option makes some tools behave like they do on Fedora.
+
+        At the time of this writing (2017-08) this only affects uname:
+        normally, uname -p (processor) and uname -i (platform)
+        are shown as "unknown", but with this option uname -p
+        shows the same string as uname -m (machine type),
+        and so does uname -i unless machine type is i486/i586/i686 -
+        then uname -i shows "i386".
+
 config INCLUDE_SUSv2
         bool "Enable obsolete features removed before SUSv3"
         default y
diff --git a/coreutils/uname.c b/coreutils/uname.c
index 4d98fde25..0c0b85ca8 100644
--- a/coreutils/uname.c
+++ b/coreutils/uname.c
@@ -157,7 +157,7 @@ int uname_main(int argc UNUSED_PARAM, char **argv)
         strcpy(uname_info.processor, unknown_str);
         strcpy(uname_info.platform, unknown_str);
         strcpy(uname_info.os, CONFIG_UNAME_OSNAME);
-#if 0
+#if ENABLE_FEDORA_COMPAT
         /* Fedora does something like this */
         strcpy(uname_info.processor, uname_info.name.machine);
         strcpy(uname_info.platform, uname_info.name.machine);