Allow windows linking of test programs (open-quantum-safe#1751)

The kat_kem and kat_sig programs could not be linked when building natively on windows. This was caused by multiple definitions of symbols. By using the /FORCE:MULTIPLE compiler option, this is allowed, similar in spirit to what was already used for cross-compiling to Windows. Fixes open-quantum-safe#1749 Signed-off-by: Mattias Lindblad <[email protected]>
Frauschi · Apr 7, 2024 · 701dea5 · 701dea5
1 parent 32afec8
commit 701dea5
Showing 1 changed file with 14 additions and 6 deletions.
diff --git a/tests/CMakeLists.txt b/tests/CMakeLists.txt
@@ -64,9 +64,13 @@ target_link_libraries(example_kem PRIVATE ${TEST_DEPS})
 
 add_executable(kat_kem kat_kem.c test_helpers.c)
 target_link_libraries(kat_kem PRIVATE ${TEST_DEPS})
-if(CMAKE_CROSSCOMPILING AND CMAKE_SYSTEM_NAME STREQUAL "Windows" AND BUILD_SHARED_LIBS)
-    # workaround for Windows .dll cross-compiling
-    target_link_options(kat_kem PRIVATE -Wl,--allow-multiple-definition)
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND BUILD_SHARED_LIBS)
+    # workaround for Windows .dll
+    if(CMAKE_CROSSCOMPILING)
+        target_link_options(kat_kem PRIVATE -Wl,--allow-multiple-definition)
+    else()
+        target_link_options(kat_kem PRIVATE "/FORCE:MULTIPLE")
+    endif()
 endif()
 
 add_executable(test_kem test_kem.c)
@@ -86,9 +90,13 @@ target_link_libraries(example_sig PRIVATE ${TEST_DEPS})
 
 add_executable(kat_sig kat_sig.c test_helpers.c)
 target_link_libraries(kat_sig PRIVATE ${TEST_DEPS})
-if(CMAKE_CROSSCOMPILING AND CMAKE_SYSTEM_NAME STREQUAL "Windows" AND BUILD_SHARED_LIBS)
-    # workaround for Windows .dll cross-compiling
-    target_link_options(kat_sig PRIVATE -Wl,--allow-multiple-definition)
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND BUILD_SHARED_LIBS)
+    # workaround for Windows .dll
+    if(CMAKE_CROSSCOMPILING)
+        target_link_options(kat_sig PRIVATE -Wl,--allow-multiple-definition)
+    else()
+        target_link_options(kat_sig PRIVATE "/FORCE:MULTIPLE")
+    endif()
 endif()
 
 add_executable(test_sig test_sig.c)