From: Kefu Chai <kchai@redhat.com>
Date: Thu, 4 Mar 2021 08:06:51 +0000 (+0800)
Subject: nasm-wrapper: swallow -MD option
X-Git-Tag: v17.1.0~2681^2~3
X-Git-Url: http://git.apps.os.sepia.ceph.com/?a=commitdiff_plain;h=1cc3fa5da87a9c861e74e6a7d0d0a4e87de1ce80;p=ceph.git

nasm-wrapper: swallow -MD option

see also

- https://discourse.cmake.org/t/cmake-generating-invalid-ninja-build-rules-for-asm/1389
- https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4460
- https://gitlab.kitware.com/cmake/cmake/-/merge_requests/4838

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

diff --git a/src/nasm-wrapper b/src/nasm-wrapper
index 9e950ff586166..71eb8246a7b7b 100755
--- a/src/nasm-wrapper
+++ b/src/nasm-wrapper
@@ -18,6 +18,13 @@ while [ -n "$*" ]; do
         # ignore debug format
         shift
         ;;
+    -MD )
+        # before CMake v3.18, its ninja build rule always passes `-MD $DEP_FILE``
+        # to ASM_COMPILER. both nasm and GNU assembler accepts this option, but
+        # somehow the ninja generator fails to pass the <DEPFILE> argument. so
+        # just drop it.
+        shift
+        ;;
     -W* )
         # Warning/error option
         shift