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z3/cmake/compiler_flags_override.cmake
Dan Liew 246a105006 Force incremental linking to be off for MSVC. Whilst I'm here copy
the stacksize flag used in the Python building system.

This was an effort to try and stop the Visual Studio build from emitting
the error message

```
70>LINK : fatal error LNK1104: cannot open file
'C:\Users\dan\dev\z3-1\build_console\Debug\z3.ilk'
```

Unfortunately this has not fixed the issue.
2016-03-04 15:26:09 +00:00

39 lines
1.9 KiB
CMake

# This file overrides the default compiler flags for CMake's built-in
# configurations (CMAKE_BUILD_TYPE). Most compiler flags should not be set here.
# The main purpose is to make sure ``-DNDEBUG`` is never set by default.
if (CMAKE_C_COMPILER_ID)
set(_lang C)
elseif(CMAKE_CXX_COMPILER_ID)
set(_lang CXX)
else()
message(FATAL_ERROR "Unknown language")
endif()
if (("${CMAKE_${_lang}_COMPILER_ID}" MATCHES "Clang") OR ("${CMAKE_${_lang}_COMPILER_ID}" MATCHES "GNU"))
# Taken from Modules/Compiler/GNU.cmake but -DNDEBUG is removed
set(CMAKE_${_lang}_FLAGS_INIT "")
# FIXME: should we have -D_DEBUG here to match MSVC build?
set(CMAKE_${_lang}_FLAGS_DEBUG_INIT "-g -O0")
set(CMAKE_${_lang}_FLAGS_MINSIZEREL_INIT "-Os")
set(CMAKE_${_lang}_FLAGS_RELEASE_INIT "-O3")
set(CMAKE_${_lang}_FLAGS_RELWITHDEBINFO_INIT "-O2 -g")
# FIXME: Remove "x.." when CMP0054 is set to NEW
elseif ("x${CMAKE_${_lang}_COMPILER_ID}" STREQUAL "xMSVC")
set(CMAKE_${_lang}_FLAGS_DEBUG_INIT "/D_DEBUG /MTd /Zi /Ob0 /Od /RTC1")
set(CMAKE_${_lang}_FLAGS_MINSIZEREL_INIT "/MT /O1 /Ob1")
set(CMAKE_${_lang}_FLAGS_RELEASE_INIT "/MT /O2 /Ob2")
set(CMAKE_${_lang}_FLAGS_RELWITHDEBINFO_INIT "/MT /Zi /O2 /Ob1")
# Override linker flags (see Windows-MSVC.cmake for CMake's defaults)
# The stack size comes from the Python build system.
set(_msvc_stack_size "8388608")
set(CMAKE_EXE_LINKER_FLAGS_DEBUG_INIT "/debug /INCREMENTAL:NO /STACK:${_msvc_stack_size}")
set(CMAKE_EXE_LINKER_FLAGS_RELWITHDEBINFO_INIT "/debug /INCREMENTAL:NO /STACK:${_msvc_stack_size}")
set(CMAKE_EXE_LINKER_FLAGS_MINSIZEREL_INIT "/INCREMENTAL:NO /STACK:${_msvc_stack_size}")
set(CMAKE_EXE_LINKER_FLAGS_RELEASE_INIT "/INCREMENTAL:NO /STACK:${_msvc_stack_size}")
unset(_msvc_stack_size)
else()
message(FATAL_ERROR "Overrides not set for ${_lang} compiler \"${CMAKE_${_lang}_COMPILER_ID}\"")
endif()
unset(_lang)