[LU-19226] Failed to build Lustre RPMs with server support enabled

• Type: Bug
• Resolution: Unresolved
• Priority: Medium
• Affects Version/s: Lustre 2.16.1
• Labels: RPM
• Severity: 3
• Assignee: WC Triage
• Reporter: Chen Linxuan

Description

While attempting to build Lustre RPMs with server support enabled (--enable-server), the build fails with the following error:

```
...
Type 'make' to build Lustre.
+ grep -q 'define[[:space:]]*HAVE_SERVER_SUPPORT' config.h
+ echo 'Error: Server Support configured but not found'
Error: Server Support configured but not found
+ false
error: Bad exit status from /tmp/rpmbuild-lustre-root-QXs90DcT/TMP/rpm-tmp.MFDE8Q (%build)
...

RPM build errors:
Bad exit status from /tmp/rpmbuild-lustre-root-QXs90DcT/TMP/rpm-tmp.MFDE8Q (%build)
make: *** [autoMakefile:1367: rpms] Error 1
```

This issue was observed at commit id: 48301dd9625b536861d21f2d3b7646cf61cda470.

My Build Steps:
To reproduce the issue, I followed these steps:
1. Cloned the Lustre release repository:
git clone git://git.whamcloud.com/fs/lustre-release.git
2. Changed into the repository directory:
cd lustre-release
3. Generated the build scripts:
./autogen.sh
4. Configured the build system with server support enabled:
./configure --enable-server
5. Attempted to build RPM packages:
make rpms

During the RPM build process, the error "Server Support configured but not found" is triggered, resulting in a failed build.

Proposed Fix:
I have prepared a patch that modifies the lustre.spec.in file to correctly handle the server support configuration. The key change is to ensure that the --enable-server option is passed when the with_servers variable is set:

```

• % {!?with_servers:--disable-server}

  \
  + %{?with_servers:--enable-server}%

  {!?with_servers:--disable-server}

  \
  ```
  Additionally, I have checked the code history and found no recent changes related to the --enable-server logic. Therefore, I am not certain that this fix represents the best practice or the optimal solution for this issue.