Use WIN32 instead of MSVC in CMake files

In general we could use clang compiler with regular front end
on Windows which is detected as GNU compiler not MSVC.
In this case it is better to check the platform itself in CMake.

Author: kaadam

runtime/flang/CMakeLists.txt

@@ -8,7 +8,7 @@ enable_language(C ASM Fortran) # Enable assembly and Fortran
 
 SET(ASM_OPTIONS "-DLINUX_ELF")
 SET(CMAKE_ASM_FLAGS "${CFLAGS} ${ASM_OPTIONS}" )
-if (NOT MSVC)
+if (NOT WIN32)
   SET(CMAKE_SHARED_LINKER_FLAGS "-no-flang-libs")
 else ()
   SET(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -no-flang-libs")
@@ -483,8 +483,8 @@ set_target_properties(flang_static
   PROPERTIES
   Fortran_MODULE_DIRECTORY ${CMAKE_BINARY_DIR}/include-static
 )
-if (MSVC)
-set_property(TARGET flang_static PROPERTY OUTPUT_NAME libflang)
+if (WIN32)
+set_property(TARGET flang_static PROPERTY OUTPUT_NAME flang_static)
 else()
 set_property(TARGET flang_static PROPERTY OUTPUT_NAME flang)
 endif()
@@ -502,10 +502,8 @@ add_flang_library(flang_shared
 set_property(TARGET flang_shared PROPERTY OUTPUT_NAME flang)
 target_link_libraries(flang_shared flangrti_shared)
 # Resolve symbols against libm and librt
-if (NOT MSVC)
-  target_link_libraries(flang_shared m rt)
-else()
-  set_target_properties(flang_shared PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
+if (NOT WIN32)
+target_link_libraries(flang_shared m rt)
 endif()
 
 set(SHARED_LIBRARY FALSE)
@@ -645,7 +643,7 @@ add_dependencies(flang_shared
   flang2
   )
 
-if (NOT MSVC)
+if (NOT WIN32)
   target_compile_options(flang_static PRIVATE -fPIC)
   target_compile_options(flang_shared PRIVATE -fPIC)
 else()

runtime/flangrti/CMakeLists.txt

@@ -67,7 +67,7 @@ add_flang_library(flangrti_static
   ${PGC_SRC_FILES}
   ${SHARED_SOURCES}
   )
-if (MSVC)
+if (WIN32)
   set_property(TARGET flangrti_static PROPERTY OUTPUT_NAME libflangrti)
 else()
   set_property(TARGET flangrti_static PROPERTY OUTPUT_NAME flangrti)
@@ -81,7 +81,7 @@ add_flang_library(flangrti_shared
   )
 
 # Resolve symbols against libm
-if (NOT MSVC)
+if (NOT WIN32)
   target_link_libraries(flangrti_shared PRIVATE m)
 endif()
 
@@ -125,7 +125,7 @@ target_include_directories(flangrti_shared
 set_target_properties(flangrti_shared flangrti_static
                       PROPERTIES ARCHIVE_OUTPUT_DIRECTORY ${FLANG_RTE_LIB_DIR})
 
-if (NOT MSVC)
+if (NOT WIN32)
   target_compile_options(flangrti_static PRIVATE -fPIC)
   target_compile_options(flangrti_shared PRIVATE -fPIC)
 else()

runtime/ompstub/CMakeLists.txt

@@ -7,7 +7,7 @@
 set(OMPSTUB_SRC init_nomp.c  ompstubs.c)
 
 add_flang_library(ompstub_static ${OMPSTUB_SRC})
-if (MSVC)
+if (WIN32)
 set_property(TARGET ompstub_static PROPERTY OUTPUT_NAME libompstub)
 else()
 set_property(TARGET ompstub_static PROPERTY OUTPUT_NAME ompstub)
@@ -16,7 +16,7 @@ endif()
 set(SHARED_LIBRARY TRUE)
 add_flang_library(ompstub_shared ${OMPSTUB_SRC})
 set_property(TARGET ompstub_shared PROPERTY OUTPUT_NAME ompstub)
-if (MSVC)
+if (WIN32)
   set_target_properties(ompstub_shared PROPERTIES WINDOWS_EXPORT_ALL_SYMBOLS TRUE)
 endif()
 set(SHARED_LIBRARY FALSE)

tools/flang1/flang1exe/CMakeLists.txt

@@ -158,7 +158,7 @@ target_link_libraries(flang1
   scutil
   )
 
-if (NOT MSVC)
+if (NOT WIN32)
   target_link_libraries(flang1 PRIVATE m)
 endif()
 

tools/flang2/flang2exe/CMakeLists.txt

@@ -138,7 +138,7 @@ target_link_libraries(flang2
   scutil
   )
 
-if (NOT MSVC)
+if (NOT WIN32)
   target_link_libraries(flang2 PRIVATE m)
 endif()