[Openmp-commits] [openmp] [OpenMP][AIX] Not to create symbolic links to libomp.so in install step (PR #168585)

[Kelvin Li via Openmp-commits]

https://github.com/kkwli created https://github.com/llvm/llvm-project/pull/168585

https://github.com/llvm/llvm-project/commit/bb563b196f0e70b2790cdfe2619fbd34f273b508 handles the links in the build directory but misses the case in the install step. This patch is to link only the libomp.a on AIX.

>From 28fda49d08bdbce8c147c3a28266e6cee481f07f Mon Sep 17 00:00:00 2001
From: Kelvin Li <kli at ca.ibm.com>
Date: Tue, 18 Nov 2025 12:59:40 -0500
Subject: [PATCH] [OpenMP][AIX] Not to create symbolic links to libomp.so in
 install step

---
 openmp/runtime/src/CMakeLists.txt | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/openmp/runtime/src/CMakeLists.txt b/openmp/runtime/src/CMakeLists.txt
index 5dd7f4b33612d..3202bdcd13524 100644
--- a/openmp/runtime/src/CMakeLists.txt
+++ b/openmp/runtime/src/CMakeLists.txt
@@ -471,13 +471,19 @@ else()
   if(${LIBOMP_INSTALL_ALIASES})
     # Create aliases (symlinks) of the library for backwards compatibility
     extend_path(outdir "${CMAKE_INSTALL_PREFIX}" "${OPENMP_INSTALL_LIBDIR}")
+    if(AIX)
+      # On AIX, libomp.a is the name for both static and shared objects.
+      set(LIBRARY_SUFFIX ${CMAKE_STATIC_LIBRARY_SUFFIX})
+    else()
+      set(LIBRARY_SUFFIX ${LIBOMP_LIBRARY_SUFFIX})
+    endif()
     set(LIBOMP_ALIASES "libgomp;libiomp5")
     foreach(alias IN LISTS LIBOMP_ALIASES)
-      install(CODE "execute_process(COMMAND \"\${CMAKE_COMMAND}\" -E create_symlink \"${LIBOMP_LIB_FILE}\"
-        \"${alias}${LIBOMP_LIBRARY_SUFFIX}\" WORKING_DIRECTORY
+      install(CODE "execute_process(COMMAND \"\${CMAKE_COMMAND}\" -E create_symlink \"${LIBOMP_LIB_NAME}${LIBRARY_SUFFIX}\"
+        \"${alias}${LIBRARY_SUFFIX}\" WORKING_DIRECTORY
         \"\$ENV{DESTDIR}${outdir}\")")
     endforeach()
-    if(LIBOMP_ENABLE_SHARED)
+    if(LIBOMP_ENABLE_SHARED AND NOT AIX)
       install(CODE "execute_process(COMMAND \"\${CMAKE_COMMAND}\" -E create_symlink \"${LIBOMP_LIB_FILE}\"
         \"${VERSIONED_LIBGOMP_NAME}\" WORKING_DIRECTORY
         \"\$ENV{DESTDIR}${outdir}\")")