From afcd9fe66943259ea9521ff77b32673e0cdf70b2 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Thu, 30 Jan 2020 09:10:58 -0500
Subject: AIX: Add an option to disable automatic exports from shared libraries

Since commit 0f150b69d3 (AIX: Explicitly compute shared object exports
for both XL and GNU, 2019-07-11, v3.16.0-rc1~418^2~2) we always export
all symbols from shared libraries by default.  Add a new target property
called `AIX_EXPORT_ALL_SYMBOLS` that can be explicitly set to OFF to
suppress this behavior and export no symbols by default.

Fixes: #20290
---
 Modules/Platform/AIX-GNU.cmake | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'Modules/Platform/AIX-GNU.cmake')

diff --git a/Modules/Platform/AIX-GNU.cmake b/Modules/Platform/AIX-GNU.cmake
index 42e5e364e3..5a532c7ccb 100644
--- a/Modules/Platform/AIX-GNU.cmake
+++ b/Modules/Platform/AIX-GNU.cmake
@@ -23,11 +23,11 @@ macro(__aix_compiler_gnu lang)
   # Construct the export list ourselves to pass only the object files so
   # that we export only the symbols actually provided by the sources.
   set(CMAKE_${lang}_CREATE_SHARED_LIBRARY
-    "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <OBJECT_DIR>/exports.exp <OBJECTS>"
+    "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <OBJECT_DIR>/exports.exp <AIX_EXPORTS> <OBJECTS>"
     "<CMAKE_${lang}_COMPILER> <CMAKE_SHARED_LIBRARY_${lang}_FLAGS> -Wl,-bE:<OBJECT_DIR>/exports.exp <LANGUAGE_COMPILE_FLAGS> <LINK_FLAGS> <CMAKE_SHARED_LIBRARY_CREATE_${lang}_FLAGS> <SONAME_FLAG><TARGET_SONAME> -o <TARGET> <OBJECTS> <LINK_LIBRARIES>"
     )
 
   set(CMAKE_${lang}_LINK_EXECUTABLE_WITH_EXPORTS
-    "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <TARGET_IMPLIB> -l . <OBJECTS>"
+    "\"${CMAKE_ROOT}/Modules/Platform/AIX/ExportImportList\" -o <TARGET_IMPLIB> -l . <AIX_EXPORTS> <OBJECTS>"
     "<CMAKE_${lang}_COMPILER> <FLAGS> <CMAKE_${lang}_LINK_FLAGS> -Wl,-bE:<TARGET_IMPLIB> <LINK_FLAGS> <OBJECTS> -o <TARGET> <LINK_LIBRARIES>")
 endmacro()
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