From aa7da73880539713b14d19d6b34c2940c3579fcd Mon Sep 17 00:00:00 2001
From: Denys Vlasenko <vda.linux@googlemail.com>
Date: Sun, 13 Sep 2009 14:57:24 +0200
Subject: [PATCH] add USE_PORTABLE_CODE option and use it in find applet
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
Config.in | 8 ++++++++
findutils/find.c | 4 ++++
2 files changed, 12 insertions(+)
diff --git a/Config.in b/Config.in
index 99f814e5a..05bc3a58a 100644
--- a/Config.in
+++ b/Config.in
@@ -30,6 +30,14 @@ config EXTRA_COMPAT
some GNU extensions in libc. You probably only need this option
if you plan to run busybox on desktop.
+config USE_PORTABLE_CODE
+ bool "Avoid using GCC-specific code constructs"
+ default n
+ help
+ Use this option if you are trying to compile busybox with
+ compiler other than gcc.
+ If you do use gcc, this option may needlessly increase code size.
+
choice
prompt "Buffer allocation policy"
default FEATURE_BUFFERS_USE_MALLOC
diff --git a/findutils/find.c b/findutils/find.c
index ba8fa0854..76f670942 100644
--- a/findutils/find.c
+++ b/findutils/find.c
@@ -276,7 +276,11 @@ ACTF(inum)
ACTF(exec)
{
int i, rc;
+#if ENABLE_USE_PORTABLE_CODE
+ char **argv = alloca(sizeof(char*) * (ap->exec_argc + 1));
+#else /* gcc 4.3.1 generates smaller code: */
char *argv[ap->exec_argc + 1];
+#endif
for (i = 0; i < ap->exec_argc; i++)
argv[i] = subst(ap->exec_argv[i], ap->subst_count[i], fileName);
argv[i] = NULL; /* terminate the list */