try_compile/try_run: Add support for LINK_OPTIONS option.

9 files changed, 121 insertions, 1 deletions

diff --git a/Tests/RunCMake/CMakeLists.txt b/Tests/RunCMake/CMakeLists.txt
index a4d829b..b044757 100644
--- a/Tests/RunCMake/CMakeLists.txt
+++ b/Tests/RunCMake/CMakeLists.txt
@@ -275,6 +275,7 @@ function(add_RunCMake_test_try_compile)
     endif()
   endif()
   foreach(var
+      CMAKE_SYSTEM_NAME
       CMAKE_C_COMPILER_ID
       CMAKE_C_COMPILER_VERSION
       CMAKE_C_STANDARD_DEFAULT
@@ -291,7 +292,8 @@ function(add_RunCMake_test_try_compile)
 endfunction()
 add_RunCMake_test_try_compile()
 
-add_RunCMake_test(try_run)
+add_RunCMake_test(try_run -DCMAKE_SYSTEM_NAME=${CMAKE_SYSTEM_NAME}
+                          -DCMAKE_C_COMPILER_ID=${CMAKE_C_COMPILER_ID})
 add_RunCMake_test(set)
 add_RunCMake_test(variable_watch)
 add_RunCMake_test(while)
diff --git a/Tests/RunCMake/try_compile/LinkOptions.cmake b/Tests/RunCMake/try_compile/LinkOptions.cmake
new file mode 100644
index 0000000..9b246c4
--- /dev/null
+++ b/Tests/RunCMake/try_compile/LinkOptions.cmake
@@ -0,0 +1,38 @@
+
+enable_language(C)
+
+cmake_policy(SET CMP0054 NEW)
+
+set (lib_name "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}lib${CMAKE_STATIC_LIBRARY_SUFFIX}")
+if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
+  if (RunCMake_C_COMPILER_ID STREQUAL "MSVC")
+    if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+      set (undef_flag /INCLUDE:_func)
+    else()
+      set (undef_flag /INCLUDE:func)
+    endif()
+  else()
+    if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+      set (undef_flag -u _func)
+    else()
+      set (undef_flag -u func)
+    endif()
+  endif()
+elseif (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+  set (undef_flag -u _func)
+else()
+  set (undef_flag -u func)
+endif()
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
+try_compile(result ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/lib.c
+  COPY_FILE "${lib_name}")
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE EXECUTABLE)
+try_compile(result ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/main.c
+  OUTPUT_VARIABLE out
+  LINK_OPTIONS ${undef_flag} "${lib_name}")
+
+if(NOT result)
+  message(FATAL_ERROR "try_compile(... LINK_OPTIONS ...)  failed:\n${out}")
+endif()
diff --git a/Tests/RunCMake/try_compile/RunCMakeTest.cmake b/Tests/RunCMake/try_compile/RunCMakeTest.cmake
index 6a1bc64..77fb7a0 100644
--- a/Tests/RunCMake/try_compile/RunCMakeTest.cmake
+++ b/Tests/RunCMake/try_compile/RunCMakeTest.cmake
@@ -25,6 +25,13 @@ run_cmake(TargetTypeExe)
 run_cmake(TargetTypeInvalid)
 run_cmake(TargetTypeStatic)
 
+if (CMAKE_SYSTEM_NAME MATCHES "^(Linux|Darwin|Windows)$" AND
+    CMAKE_C_COMPILER_ID MATCHES "^(MSVC|GNU|Clang|AppleClang)$")
+  set (RunCMake_TEST_OPTIONS -DRunCMake_C_COMPILER_ID=${CMAKE_C_COMPILER_ID})
+  run_cmake(LinkOptions)
+  unset (RunCMake_TEST_OPTIONS)
+endif()
+
 if(CMAKE_C_STANDARD_DEFAULT)
   run_cmake(CStandard)
 elseif(DEFINED CMAKE_C_STANDARD_DEFAULT)
diff --git a/Tests/RunCMake/try_compile/lib.c b/Tests/RunCMake/try_compile/lib.c
new file mode 100644
index 0000000..b00c576
--- /dev/null
+++ b/Tests/RunCMake/try_compile/lib.c
@@ -0,0 +1,4 @@
+
+void func()
+{
+}
diff --git a/Tests/RunCMake/try_compile/main.c b/Tests/RunCMake/try_compile/main.c
new file mode 100644
index 0000000..2128ead
--- /dev/null
+++ b/Tests/RunCMake/try_compile/main.c
@@ -0,0 +1,8 @@
+extern void func();
+
+int main(void)
+{
+  func();
+
+  return 0;
+}
diff --git a/Tests/RunCMake/try_run/LinkOptions.cmake b/Tests/RunCMake/try_run/LinkOptions.cmake
new file mode 100644
index 0000000..17af2f7
--- /dev/null
+++ b/Tests/RunCMake/try_run/LinkOptions.cmake
@@ -0,0 +1,42 @@
+
+enable_language(C)
+
+cmake_policy(SET CMP0054 NEW)
+
+set (lib_name "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_STATIC_LIBRARY_PREFIX}lib${CMAKE_STATIC_LIBRARY_SUFFIX}")
+if (CMAKE_SYSTEM_NAME STREQUAL "Windows")
+  if (RunCMake_C_COMPILER_ID STREQUAL "MSVC")
+    if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+      set (undef_flag /INCLUDE:_func)
+    else()
+      set (undef_flag /INCLUDE:func)
+    endif()
+  else()
+    if (CMAKE_SIZEOF_VOID_P EQUAL 4)
+      set (undef_flag -u _func)
+    else()
+      set (undef_flag -u func)
+    endif()
+  endif()
+elseif (CMAKE_SYSTEM_NAME STREQUAL "Darwin")
+  set (undef_flag -u _func)
+else()
+  set (undef_flag -u func)
+endif()
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE STATIC_LIBRARY)
+try_compile(result ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/lib.c
+  COPY_FILE "${lib_name}")
+
+set(CMAKE_TRY_COMPILE_TARGET_TYPE EXECUTABLE)
+try_run(run_result compile_result ${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_CURRENT_SOURCE_DIR}/main.c
+  COMPILE_OUTPUT_VARIABLE compile_out
+  RUN_OUTPUT_VARIABLE run_out
+  LINK_OPTIONS ${undef_flag} "${lib_name}")
+
+if(NOT compile_result)
+  message(FATAL_ERROR "try_run(... LINK_OPTIONS ...) compilation failed:\n${compile_out}")
+endif()
+if(run_result STREQUAL "FAILED_TO_RUN")
+  message(FATAL_ERROR "try_run(... LINK_OPTIONS ...) execution failed:\n${run_out}")
+endif()
diff --git a/Tests/RunCMake/try_run/RunCMakeTest.cmake b/Tests/RunCMake/try_run/RunCMakeTest.cmake
index 1ec9a55..3689562 100644
--- a/Tests/RunCMake/try_run/RunCMakeTest.cmake
+++ b/Tests/RunCMake/try_run/RunCMakeTest.cmake
@@ -1,3 +1,10 @@
 include(RunCMake)
 
 run_cmake(BadLinkLibraries)
+
+if (CMAKE_SYSTEM_NAME MATCHES "^(Linux|Darwin|Windows)$" AND
+    CMAKE_C_COMPILER_ID MATCHES "^(MSVC|GNU|Clang|AppleClang)$")
+  set (RunCMake_TEST_OPTIONS -DRunCMake_C_COMPILER_ID=${CMAKE_C_COMPILER_ID})
+  run_cmake(LinkOptions)
+  unset (RunCMake_TEST_OPTIONS)
+endif()
diff --git a/Tests/RunCMake/try_run/lib.c b/Tests/RunCMake/try_run/lib.c
new file mode 100644
index 0000000..b00c576
--- /dev/null
+++ b/Tests/RunCMake/try_run/lib.c
@@ -0,0 +1,4 @@
+
+void func()
+{
+}
diff --git a/Tests/RunCMake/try_run/main.c b/Tests/RunCMake/try_run/main.c
new file mode 100644
index 0000000..2128ead
--- /dev/null
+++ b/Tests/RunCMake/try_run/main.c
@@ -0,0 +1,8 @@
+extern void func();
+
+int main(void)
+{
+  func();
+
+  return 0;
+}