[libc] add comment for RT_USING_EXTERNAL_LIBC

2023-11-20 05:42:20 -05:00 · 2023-11-20 05:42:20 -05:00 · 2324794825
parent d8c96e13c6
commit 2324794825
1 changed files with 4 additions and 0 deletions
--- a/components/libc/Kconfig
+++ b/components/libc/Kconfig
@ -1,5 +1,9 @@
 menu "C/C++ and POSIX layer"

+# This is for external libc(e.g. mlib),
+# and NOT for newlib or picolibc which are inherent in the toolchains.
+# Usually, the external libc should be a software package and select
+# RT_USING_EXTERNAL_LIBC in software package's Kconfig
 config RT_USING_EXTERNAL_LIBC
    bool