1 files changed, 53 insertions, 4 deletions
diff --git a/config/libc/musl.in b/config/libc/musl.in
index 24f522a6..e16e85a1 100644
--- a/config/libc/musl.in
+++ b/config/libc/musl.in
@@ -1,17 +1,66 @@
-# musl options
+# musl second-part option
 
 ## depends on ! WINDOWS && ! BARE_METAL
 ## depends on EXPERIMENTAL
-##
 ## select LIBC_SUPPORT_THREADS_NATIVE
 ## select CC_CORE_PASSES_NEEDED
-##
+
 ## help Musl is a new standard library to power a new generation of Linux-based
 ## help devices. musl is lightweight, fast, simple, free, and strives to be
 ## help correct in the sense of standards-conformance and safety.
 
 source "config/versions/musl.in"
 
-# FIXME why? it claims "native", why report "musl"?
+# TBD why? it claims "native", why report "musl"?
 config THREADS
     default "musl"
+
+config LIBC_MUSL_DEBUG
+    bool
+    prompt "Build with debugging information"
+    help
+      This option enables debugging information, this will increase the size of
+      the resulting library.
+
+config LIBC_MUSL_WARNINGS
+    bool
+    prompt "Build with recommended warnings flags"
+    help
+      Build musl-libc with extra warnings, useful for musl-libc development.
+
+choice
+    prompt "How to optimize musl-libc"
+    default LIBC_MUSL_OPTIMIZE_AUTO
+
+config LIBC_MUSL_OPTIMIZE_NONE
+    bool
+    prompt "Do not optimize musl-libc"
+    help
+      This option sets `--enable-optimize=no' to disable optimization.
+
+config LIBC_MUSL_OPTIMIZE_AUTO
+    bool
+    prompt "Use musl-libc's automatic optimization"
+    help
+      This option sets `--enable-optimize=auto' to automatically set optimization.
+
+config LIBC_MUSL_OPTIMIZE_SPEED
+    bool
+    prompt "Optimize musl-libc for speed"
+    help
+      This option sets `--enable-optimize=yes' to set optimization to -O3 for speed.
+
+config LIBC_MUSL_OPTIMIZE_SIZE
+    bool
+    prompt "Optimize musl-libc for size"
+    help
+      This option sets `--enable-optimize=size' to set optimization to -Os for size.
+
+endchoice
+
+config LIBC_MUSL_OPTIMIZE
+    string
+    default "no"   if LIBC_MUSL_OPTIMIZE_NONE
+    default "auto" if LIBC_MUSL_OPTIMIZE_AUTO
+    default "yes"  if LIBC_MUSL_OPTIMIZE_SPEED
+    default "size" if LIBC_MUSL_OPTIMIZE_SIZE