HADOOP-19611. Fix native profile build of hadoop-pipes on SLES 15.

[MikaelSmith]

Description of PR

On SLES 15, failing to add tirpc results in failures linking pthreads. tirpc is present and appears and the newer RPC library option (with support for IPv6). Use it when available.

How was this patch tested?

Builds on RHEL 8, RHEL 9, Ubuntu 22, and SLES 15.

For code changes:

• Does the title or this PR starts with the corresponding JIRA issue id (e.g. 'HADOOP-17799. Your PR title ...')?
• Object storage: have the integration tests been executed and the endpoint declared according to the connector-specific documentation?
• If adding new dependencies to the code, are these dependencies licensed in a way that is compatible for inclusion under ASF 2.0?
• If applicable, have you updated the LICENSE, LICENSE-binary, NOTICE-binary files?

[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 33s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	34m 51s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	compile	0m 34s		trunk passed
+1 💚	mvnsite	0m 29s		trunk passed
-1 ❌	shadedclient	37m 50s		branch has errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 16s		the patch passed
+1 💚	compile	0m 23s		the patch passed
+1 💚	cc	0m 23s		the patch passed
+1 💚	javac	0m 23s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	0m 18s		the patch passed
-1 ❌	shadedclient	1m 24s		patch has errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	0m 23s		hadoop-pipes in the patch passed.
+1 💚	asflicense	0m 31s		The patch does not generate ASF License warnings.
		43m 9s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7789/1/artifact/out/Dockerfile
GITHUB PR	#7789
Optional Tests	dupname asflicense compile cc mvnsite javac unit codespell detsecrets
uname	Linux f4434e8fb98a 5.15.0-143-generic #153-Ubuntu SMP Fri Jun 13 19:10:45 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / bdd0879
Default Java	Red Hat, Inc.-1.8.0_412-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7789/1/testReport/
Max. process+thread count	98 (vs. ulimit of 5500)
modules	C: hadoop-tools/hadoop-pipes U: hadoop-tools/hadoop-pipes
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7789/1/console
versions	git=2.9.5 maven=3.9.10
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[hadoop-yetus]

💔 -1 overall

Vote	Subsystem	Runtime	Logfile	Comment
+0 🆗	reexec	0m 33s		Docker mode activated.
			_ Prechecks _
+1 💚	dupname	0m 0s		No case conflicting files found.
+0 🆗	codespell	0m 0s		codespell was not available.
+0 🆗	detsecrets	0m 0s		detect-secrets was not available.
+1 💚	@author	0m 0s		The patch does not contain any @author tags.
-1 ❌	test4tests	0m 0s		The patch doesn't appear to include any new or modified tests. Please justify why no new tests are needed for this patch. Also please list what manual steps were performed to verify this patch.
			_ trunk Compile Tests _
-1 ❌	mvninstall	34m 11s	/branch-mvninstall-root.txt	root in trunk failed.
+1 💚	compile	0m 33s		trunk passed
+1 💚	mvnsite	0m 31s		trunk passed
-1 ❌	shadedclient	37m 9s		branch has errors when building and testing our client artifacts.
			_ Patch Compile Tests _
+1 💚	mvninstall	0m 17s		the patch passed
+1 💚	compile	0m 23s		the patch passed
+1 💚	cc	0m 23s		the patch passed
+1 💚	javac	0m 23s		the patch passed
+1 💚	blanks	0m 0s		The patch has no blanks issues.
+1 💚	mvnsite	0m 18s		the patch passed
-1 ❌	shadedclient	1m 24s		patch has errors when building and testing our client artifacts.
			_ Other Tests _
+1 💚	unit	0m 23s		hadoop-pipes in the patch passed.
+1 💚	asflicense	0m 31s		The patch does not generate ASF License warnings.
		42m 29s

Subsystem	Report/Notes
Docker	ClientAPI=1.51 ServerAPI=1.51 base: https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7789/2/artifact/out/Dockerfile
GITHUB PR	#7789
Optional Tests	dupname asflicense compile cc mvnsite javac unit codespell detsecrets
uname	Linux 95e5ae1d0505 5.15.0-143-generic #153-Ubuntu SMP Fri Jun 13 19:10:45 UTC 2025 x86_64 x86_64 x86_64 GNU/Linux
Build tool	maven
Personality	dev-support/bin/hadoop.sh
git revision	trunk / aa20624
Default Java	Red Hat, Inc.-1.8.0_412-b08
Test Results	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7789/2/testReport/
Max. process+thread count	65 (vs. ulimit of 5500)
modules	C: hadoop-tools/hadoop-pipes U: hadoop-tools/hadoop-pipes
Console output	https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-7789/2/console
versions	git=2.9.5 maven=3.9.10
Powered by	Apache Yetus 0.14.0 https://yetus.apache.org

This message was automatically generated.

[Copilot]

Pull Request Overview

This PR updates the Hadoop Pipes CMake logic to prefer and link against libtirpc when available, fixing native builds on SLES 15.

• Switches from manually finding rpc/rpc.h to using pkg_check_modules(LIBTIRPC)
• Simplifies conditional blocks to use LIBTIRPC_FOUND for include-path detection and linking
• Always links tirpc when found

Comments suppressed due to low confidence (1)

hadoop-tools/hadoop-pipes/src/CMakeLists.txt:33

• Removing the fallback find_path(rpc/rpc.h) means RPC_INCLUDE_DIRS is never set when libtirpc isn’t available. This will break builds on systems without libtirpc. Consider restoring a fallback detection of rpc/rpc.h in an else() branch.

    )