Fixes:
WARNING: openssl-tpm-engine_0.5.0.bb: CFLAGS:append += is not a
recommended operator combination, please replace it.

Signed-off-by: Yi Zhao <yi.zhao@...>
---
.../openssl-tpm-engine/openssl-tpm-engine_0.5.0.bb | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/meta-tpm/recipes-tpm/openssl-tpm-engine/openssl-tpm-engine_0.5.0.bb b/meta-tpm/recipes-tpm/openssl-tpm-engine/openssl-tpm-engine_0.5.0.bb
index ef663eb..2b969ed 100644
--- a/meta-tpm/recipes-tpm/openssl-tpm-engine/openssl-tpm-engine_0.5.0.bb
+++ b/meta-tpm/recipes-tpm/openssl-tpm-engine/openssl-tpm-engine_0.5.0.bb
@@ -35,10 +35,10 @@ inherit autotools-brokensep pkgconfig
srk_dec_pw ?= "\\"\\\x1\\"\\"nc\\"\\"\\\x3\\"\\"nd\\"\\"\\\x1\\"\\"a\\""
srk_dec_salt ?= "\\"r\\"\\"\\\x00\\\x00\\"\\"t\\""

-CFLAGS:append += "-DSRK_DEC_PW=${srk_dec_pw} -DSRK_DEC_SALT=${srk_dec_salt}"
+CFLAGS:append = " -DSRK_DEC_PW=${srk_dec_pw} -DSRK_DEC_SALT=${srk_dec_salt}"

# Uncomment below line if using the plain srk password for development
-#CFLAGS_append += "-DTPM_SRK_PLAIN_PW"
+#CFLAGS:append = " -DTPM_SRK_PLAIN_PW"

do_configure:prepend() {
cd ${B}