Win32: Fix compilation with standalone LLVM

The /clang: suffix passed to Clang-CL was accidentally also passed to
the regular standalone Clang, which caused compilation to fail.  We now
pass /W3 to Clang-CL, which it interprets as -Wall.

The _CRT_SECURE_NO_WARNINGS macro is now defined for both Clang and
Clang-CL.

The /entry: flag passed to link.exe is now also passed to lld-link,
letting the windows subsystem tests and examples link.

Fixes #1807.
Closes #1824.
Closes #1874.

(cherry picked from commit 061a0263a9)
This commit is contained in:
Camilla Löwy
2021-04-12 20:56:53 +02:00
parent 3cded29c2f
commit 5dd6716ee9
4 changed files with 23 additions and 16 deletions

View File

@@ -121,18 +121,14 @@ if (CMAKE_C_COMPILER_ID STREQUAL "GNU")
endif()
# Enable a reasonable set of warnings
if (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
if (CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
# Tell Clang-CL that this is a Clang flag
target_compile_options(glfw PRIVATE "/clang:-Wall")
else()
target_compile_options(glfw PRIVATE "-Wall")
endif()
elseif (MSVC)
# NOTE: The order matters here, Clang-CL matches both MSVC and Clang
if (MSVC)
target_compile_options(glfw PRIVATE "/W3")
elseif (CMAKE_C_COMPILER_ID STREQUAL "GNU" OR
CMAKE_C_COMPILER_ID STREQUAL "Clang" OR
CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
target_compile_options(glfw PRIVATE "-Wall")
endif()
if (WIN32)
@@ -176,7 +172,7 @@ if (BUILD_SHARED_LIBS)
endif()
endif()
if (MSVC)
if (MSVC OR CMAKE_C_SIMULATE_ID STREQUAL "MSVC")
target_compile_definitions(glfw PRIVATE _CRT_SECURE_NO_WARNINGS)
endif()