cmake: do not quote string

otherwise we have

CMake Error at /home/jenkins-build/build/workspace/ceph-pull-requests/build/spdk-ext-prefix/src/spdk-ext-stamp/spdk-ext-build-.cmake:37 (message):
  Command failed: 2

   'env' '-i' 'PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin' 'CC=/usr/bin/clang-10' '/usr/bin/make' 'EXTRA_CFLAGS=' '-fPIC' '-Wno-address-of-packed-member""'

Signed-off-by: Kefu Chai <kchai@redhat.com>

diff --git a/cmake/modules/BuildSPDK.cmake b/cmake/modules/BuildSPDK.cmake
index 57348e7afae8df945b8befb20127d6beb2304c4d..0a6acc8d059972fa93bae7bf1f12ec12264d64df 100644 (file)
--- a/cmake/modules/BuildSPDK.cmake
+++ b/cmake/modules/BuildSPDK.cmake
@@ -55,7 +55,7 @@ macro(build_spdk)
     # unset $CFLAGS, otherwise it will interfere with how SPDK sets
     # its include directory.
     # unset $LDFLAGS, otherwise SPDK will fail to mock some functions.
-    BUILD_COMMAND env -i PATH=$ENV{PATH} CC=${CMAKE_C_COMPILER} ${make_cmd} EXTRA_CFLAGS="${spdk_CFLAGS}"
+    BUILD_COMMAND env -i PATH=$ENV{PATH} CC=${CMAKE_C_COMPILER} ${make_cmd} EXTRA_CFLAGS=${spdk_CFLAGS}
     BUILD_IN_SOURCE 1
     BUILD_BYPRODUCTS ${spdk_libs}
     INSTALL_COMMAND ""