fix: windows clang build (#719)

* Update settings.cmake

Fix the issue where debugging on Windows in VSCode doesn’t work

* fix: windows clang build

The following flags are not supported in non-MSVC environments
/EHsc /wd4141 /wd4146 /wd4180 /wd4244 /wd4258 /wd4267 /wd4291
/wd4345 /wd4351 /wd4355 /wd4456 /wd4457 /wd4458 /wd4459 /wd4503
/wd4624 /wd4722 /wd4800 /wd4100 /wd4127 /wd4512 /wd4505 /wd4610
/wd4510 /wd4702 /wd4245 /wd4706 /wd4310 /wd4701 /wd4703 /wd4389
/wd4611 /wd4805 /wd4204 /wd4577 /wd4091 /wd4592 /wd4324

Update cmake_minimum_required(VERSION 3.21) to remove CMake warning.

CMakeLists.txt

@@ -143,7 +143,7 @@ target_include_directories(remill_settings INTERFACE
   $<BUILD_INTERFACE:${LLVM_INCLUDE_DIR}>
 )
 
-if(WIN32)
+if(CMAKE_SYSTEM_NAME STREQUAL "Windows" AND MSVC)
   # warnings and compiler settings
   target_compile_options(remill_settings INTERFACE
     "$<$<CONFIG:Debug>:/MDd>$<$<CONFIG:Release>:/MD>"
@@ -167,6 +167,9 @@ if(WIN32)
 
 else()
   # warnings and compiler settings
+  if(CMAKE_SYSTEM_NAME STREQUAL "Linux")
+    target_compile_options(remill_settings INTERFACE -fPIC)
+  endif()
   target_compile_options(remill_settings INTERFACE
     -Wall -Wextra -Wno-unused-parameter -Wno-c++98-compat
     -Wno-unreachable-code-return -Wno-nested-anon-types

bin/lift/CMakeLists.txt

@@ -13,7 +13,7 @@
 # limitations under the License.
 
 project(remill-lift)
-cmake_minimum_required(VERSION 3.2)
+cmake_minimum_required(VERSION 3.21)
 
 #
 # target settings

cmake/utils.cmake

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.2)
+cmake_minimum_required(VERSION 3.21)
 
 function(GetTargetTree output_variable)
   if(${ARGC} LESS 1)

lib/Arch/AArch32/Runtime/CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.21)
 project(arm_runtime)
 
 set(ARMRUNTIME_SOURCEFILES

lib/Arch/AArch64/Runtime/CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.21)
 project(AARCH64_runtime)
 
 set(AARCH64RUNTIME_SOURCEFILES

lib/Arch/PPC/Runtime/CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.21)
 project(ppc_runtime)
 
 set(PPCRUNTIME_SOURCEFILES

lib/Arch/SPARC32/Runtime/CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.21)
 project(sparc32_runtime)
 
 set(SPARC32RUNTIME_SOURCEFILES

lib/Arch/SPARC64/Runtime/CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.21)
 project(sparc64_runtime)
 
 set(SPARC64RUNTIME_SOURCEFILES

lib/Arch/X86/Runtime/CMakeLists.txt

@@ -12,7 +12,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.21)
 project(x86_runtime)
 
 set(X86RUNTIME_SOURCEFILES