From 28bab611c62d2a7d71e22888563a8a6d21197f71 Mon Sep 17 00:00:00 2001
From: Brad King <brad.king@kitware.com>
Date: Wed, 17 Sep 2025 19:43:36 -0400
Subject: [PATCH] Tests: Add RunCMake.Emscripten case for a shared library

---
 Tests/RunCMake/Emscripten/C-lib-shared.cmake | 6 ++++++
 Tests/RunCMake/Emscripten/RunCMakeTest.cmake | 6 ++++++
 2 files changed, 12 insertions(+)
 create mode 100644 Tests/RunCMake/Emscripten/C-lib-shared.cmake

diff --git a/Tests/RunCMake/Emscripten/C-lib-shared.cmake b/Tests/RunCMake/Emscripten/C-lib-shared.cmake
new file mode 100644
index 0000000000..2e62803a12
--- /dev/null
+++ b/Tests/RunCMake/Emscripten/C-lib-shared.cmake
@@ -0,0 +1,6 @@
+enable_language(C)
+add_library(emscripten-test-lib SHARED libmod.c)
+
+add_executable(exec-lib-c module.c)
+target_compile_definitions(exec-lib-c PRIVATE __USE_LIBFUN)
+target_link_libraries(exec-lib-c PRIVATE emscripten-test-lib)
diff --git a/Tests/RunCMake/Emscripten/RunCMakeTest.cmake b/Tests/RunCMake/Emscripten/RunCMakeTest.cmake
index dd04fd7b87..4ca526487f 100644
--- a/Tests/RunCMake/Emscripten/RunCMakeTest.cmake
+++ b/Tests/RunCMake/Emscripten/RunCMakeTest.cmake
@@ -57,6 +57,12 @@ foreach(_emscripten_toolchain IN LISTS _emscripten_toolchains)
     -DCMAKE_C_COMPILER=${c_comp}
   )
 
+  # Create a shared library and executable from .c sources.
+  run_toolchain(C-lib-shared
+    -DCMAKE_SYSTEM_NAME=Emscripten
+    -DCMAKE_C_COMPILER=${c_comp}
+  )
+
   run_cmake_with_options(C-WHOLE_ARCHIVE
     -DCMAKE_SYSTEM_NAME=Emscripten
     -DCMAKE_C_COMPILER=${c_comp}