toolchain-buildroot: add support for building musl toolchains

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/toolchain/toolchain-buildroot/Config.in b/toolchain/toolchain-buildroot/Config.in
index 42166d26339ab55741e812dcd21f9a9bc1bbb644..1bd3f92365e6fdd8d6a8d90f1bbebbe9975d9bb6 100644 (file)
--- a/toolchain/toolchain-buildroot/Config.in
+++ b/toolchain/toolchain-buildroot/Config.in
@@ -77,6 +77,15 @@ config BR2_TOOLCHAIN_BUILDROOT_GLIBC
 comment "(e)glibc only available with shared lib support"
        depends on BR2_PREFER_STATIC_LIB
 
+config BR2_TOOLCHAIN_BUILDROOT_MUSL
+       bool "musl (experimental)"
+       depends on BR2_arm || BR2_armeb || BR2_i386 || BR2_microblaze || \
+               BR2_mips || BR2_mipsel || BR2_powerpc || BR2_x86_64
+       select BR2_TOOLCHAIN_USES_MUSL
+       help
+         This option selects musl as the C library for the
+         cross-compilation toolchain.
+
 endchoice
 
 config BR2_TOOLCHAIN_BUILDROOT_LIBC
@@ -86,6 +95,7 @@ config BR2_TOOLCHAIN_BUILDROOT_LIBC
        # 'glibc'
        default "glibc"  if BR2_TOOLCHAIN_BUILDROOT_EGLIBC
        default "glibc"  if BR2_TOOLCHAIN_BUILDROOT_GLIBC
+       default "musl"   if BR2_TOOLCHAIN_BUILDROOT_MUSL
 
 source "package/uclibc/Config.in"
 source "package/glibc/Config.in"