systemd efi.h defines wchar_t from compiler provided __WCHAR_TYPE__
therefore we do not want it to come from alltypes.h in musl case which
otherwise will end up with conflicting definitions of wchar_t, defining
__DEFINED_wchar_t ensures that alltypes.h does not provide it

Signed-off-by: Khem Raj <[email protected]>
---
 meta/recipes-core/systemd/systemd-boot_254.bb | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/recipes-core/systemd/systemd-boot_254.bb 
b/meta/recipes-core/systemd/systemd-boot_254.bb
index 4fee99beada..642a5fafe74 100644
--- a/meta/recipes-core/systemd/systemd-boot_254.bb
+++ b/meta/recipes-core/systemd/systemd-boot_254.bb
@@ -50,6 +50,8 @@ RDEPENDS:${PN} += "virtual-systemd-bootconf"
 # Imported from the old gummiboot recipe
 TUNE_CCARGS:remove = "-mfpmath=sse"
 
+CFLAGS:append:libc-musl = " -D__DEFINED_wchar_t"
+
 COMPATIBLE_HOST = "(aarch64.*|arm.*|x86_64.*|i.86.*)-linux"
 COMPATIBLE_HOST:x86-x32 = "null"
 
-- 
2.41.0

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