Adding -f*-prefix-map to LDFLAGS caused the following issue when
compiling tcsh on Ubuntu 18.04:

gcc: error: unrecognized command line option ‘-fmacro-prefix-map=...’

Fix by using BUILD_LDFLAGS instead of LDFLAGS for gethost.

[YOCTO #14481]

Signed-off-by: Tony Battersby <redacted>
---

NOTE: tested only on Ubuntu 20.04.

 meta-oe/recipes-shells/tcsh/tcsh_6.22.04.bb | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta-oe/recipes-shells/tcsh/tcsh_6.22.04.bb b/meta-oe/recipes-shells/tcsh/tcsh_6.22.04.bb
index ac6c6db81..c4da5cd83 100644
--- a/meta-oe/recipes-shells/tcsh/tcsh_6.22.04.bb
+++ b/meta-oe/recipes-shells/tcsh/tcsh_6.22.04.bb

@@ -20,7 +20,7 @@ EXTRA_OEMAKE += "CC_FOR_GETHOST='${BUILD_CC}'"
 inherit autotools
 
 do_compile:prepend() {
-    oe_runmake CC_FOR_GETHOST='${BUILD_CC}' CFLAGS='${BUILD_CFLAGS}' gethost
+    oe_runmake CC_FOR_GETHOST='${BUILD_CC}' CFLAGS='${BUILD_CFLAGS}' LDFLAGS='${BUILD_LDFLAGS}' gethost
 }
 
 do_install:append () {

-- 
2.25.1