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Add two CMake flags LLVM_ENABLE_PEDANTIC and LLVM_ENABLE_WERROR,

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PEDANTIC defaults to ON and WERROR default to off.

Also add MSVC warnings. To disable warnings add the flags
LLVM_ENABLE_WARNINGS (default on).

Patch by Tobias Grosser!

llvm-svn: 90188
This commit is contained in:
Oscar Fuentes 2009-12-01 02:21:51 +00:00
parent 1ce175a014
commit d34503f4a0
2 changed files with 37 additions and 3 deletions
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25
CMakeLists.txt
View File

@ -191,6 +191,10 @@ set( CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${LLVM_BINARY_DIR}/lib )
add_llvm_definitions( -D__STDC_LIMIT_MACROS )
add_llvm_definitions( -D__STDC_CONSTANT_MACROS )
option(LLVM_ENABLE_PEDANTIC "Enable compiler warnings." ON)
option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered." OFF)
if( CMAKE_SIZEOF_VOID_P EQUAL 8 AND NOT WIN32 )
# TODO: support other platforms and toolchains.
option(LLVM_BUILD_32_BITS "Build 32 bits executables and libraries." OFF)
@ -226,8 +230,27 @@ if( MSVC )
add_llvm_definitions("/${LLVM_USE_CRT}")
message(STATUS "Using VC++ CRT: ${LLVM_USE_CRT}")
endif (NOT ${LLVM_USE_CRT} STREQUAL "")
# Enable warnings
if (LLVM_ENABLE_WARNINGS)
add_llvm_definitions( /W4 /Wall )
if (LLVM_ENABLE_PEDANTIC)
# No MSVC equivalent available
endif (LLVM_ENABLE_PEDANTIC)
endif (LLVM_ENABLE_WARNINGS)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( /WX )
endif (LLVM_ENABLE_WERROR)
elseif( CMAKE_COMPILER_IS_GNUCXX )
add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
if (LLVM_ENABLE_WARNINGS)
add_llvm_definitions( -Wall -W -Wno-unused-parameter -Wwrite-strings )
if (LLVM_ENABLE_PEDANTIC)
add_llvm_definitions( -pedantic -Wno-long-long )
endif (LLVM_ENABLE_PEDANTIC)
endif (LLVM_ENABLE_WARNINGS)
if (LLVM_ENABLE_WERROR)
add_llvm_definitions( -Werror )
endif (LLVM_ENABLE_WERROR)
endif( MSVC )
include_directories( ${LLVM_BINARY_DIR}/include ${LLVM_MAIN_INCLUDE_DIR})

15
docs/CMake.html
View File

@ -274,10 +274,21 @@
compiler supports this flag. Some systems, like Windows, do not
need this flag. Defaults to ON.</dd>
<dt><b>LLVM_ENABLE_WARNINGS</b>:BOOL</dt>
<dd>Enable all compiler warnings. Defaults to ON.</dd>
<dt><b>LLVM_ENABLE_PEDANTIC</b>:BOOL</dt>
<dd>Enable pedantic mode. This disable compiler specific extensions, is
possible. Defaults to ON.</dd>
<dt><b>LLVM_ENABLE_WERROR</b>:BOOL</dt>
<dd>Stop and fail build, if a compiler warning is
triggered. Defaults to OFF.</dd>
<dt><b>LLVM_BUILD_32_BITS</b>:BOOL</dt>
<dd>Build 32-bits executables and libraries on 64-bits systems. This
option is available only on some 64-bits unix systems. Defaults to
OFF.</dd>
option is available only on some 64-bits unix systems. Defaults to
OFF.</dd>
<dt><b>LLVM_TARGET_ARCH</b>:STRING</dt>
<dd>LLVM target to use for native code generation. This is required