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Exclude threadasm.S from build if CMake version is less than 2.8.5.

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Assembler support was rewritten in CMake 2.8.5. The new functionality
is required to assemble the file, otherwise a bunch of error messages
is generated. The solution is to exclude the file from the build.
This is only a problem for non-x86 platforms (PPC, Mips).

General advise is to use at least CMake 2.8.5. This fixes #464.
This commit is contained in:
Kai Nacke
2013-12-08 15:24:42 +01:00
parent 7bd1d4900c
commit 0628a1f9f3
1 changed files with 12 additions and 1 deletions
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13
runtime/CMakeLists.txt
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@@ -102,7 +102,18 @@ if(UNIX)
if(${CMAKE_SYSTEM} MATCHES "Linux")
list(APPEND CORE_D_SYS ${CORE_D_LINUX})
endif()
list(APPEND DCRT_ASM ${RUNTIME_DIR}/src/core/threadasm.S)
# Assembler support was rewritten in CMake 2.8.5.
# The assembler file must be passed to gcc but prior to this
# version it is passed to as. This results in a bunch of
# error message. This is only critical for non-x86 platforms.
# On x86/x86-64 the file can safely be ignored.
if("${CMAKE_VERSION}" MATCHES "^2\\.8\\.[01234]($|\\..*)")
message(WARNING "Excluding core/threadasm.S from build because of missing CMake support.")
message(WARNING "This file is required for certain non-x86 platforms.")
message(WARNING "Please consider updating CMake to at least 2.8.5.")
else()
list(APPEND DCRT_ASM ${RUNTIME_DIR}/src/core/threadasm.S)
endif()
if(APPLE)
list(APPEND CORE_D_SYS ${CORE_D_OSX})
endif()