Move unset to before we set anything.

diff --git a/.github/configs b/.github/configs
index 0308ca6c1d9c234fba1f932331db2677ce834395..48070ee75309964b385805eeaeef0ede8412c0b2 100755 (executable)
--- a/.github/configs
+++ b/.github/configs
@@ -10,6 +10,8 @@
 
 config=$1
 
+unset CC CFLAGS CPPFLAGS LDFLAGS LTESTS SUDO
+
 TEST_TARGET="tests"
 LTESTS=""
 SKIP_LTESTS=""
@@ -17,7 +19,6 @@ SUDO=sudo     # run with sudo by default
 TEST_SSH_UNSAFE_PERMISSIONS=1
 # Stop on first test failure to minimize logs
 TEST_SSH_FAIL_FATAL=yes
-unset CC CFLAGS CPPFLAGS LDFLAGS LTESTS SUDO
 
 CONFIGFLAGS=""
 LIBCRYPTOFLAGS=""
@@ -72,7 +73,7 @@ case "$config" in
            TEST_TARGET="t-exec"
            ;;
        clang-sanitize-memory)
-           CFLAGS="-fsanitize=memory -fsanitize-memory-track-origins"
+           CFLAGS="-fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer"
            LDFLAGS="-fsanitize=memory"
            CPPFLAGS='-Dchroot=chdir -Dexplicit_bzero=bzero -DMSAN_OPTIONS=\"log_path='$SANLOGS'/msan.log\"'
            CONFIGFLAGS="--without-openssl --without-zlib --without-shadow"