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EXPORTED_SYMBOL_FILE using mingw and cmake

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Summary: This is a fix for the command line syntax error while building LTO when using MinGW.

Patch By: jsroemer

Reviewers: rnk

Reviewed By: rnk

Subscribers: rnk, beanz, llvm-commits

Differential Revision: http://reviews.llvm.org/D5476

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220935 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Bieneman 2014-10-30 22:37:58 +00:00
parent 7f3bcd623e
commit 4b57390110
1 changed files with 15 additions and 13 deletions
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26
cmake/modules/AddLLVM.cmake
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@ -85,27 +85,29 @@ function(add_llvm_symbol_exports target_name export_file)
else()
set(native_export_file "${target_name}.def")
set(CAT "type")
if(CYGWIN)
set(CAT "cat")
set(export_file_nativeslashes ${export_file})
if(WIN32 AND NOT CYGWIN)
set(CAT "type")
# Convert ${export_file} to native format (backslashes) for "type"
# Does not use file(TO_NATIVE_PATH) as it doesn't create a native
# path but a build-system specific format (see CMake bug
# http://public.kitware.com/Bug/print_bug_page.php?bug_id=5939 )
string(REPLACE / \\ export_file_nativeslashes ${export_file})
endif()
# Using ${export_file} in add_custom_command directly confuses cmd.exe.
file(TO_NATIVE_PATH ${export_file} export_file_backslashes)
add_custom_command(OUTPUT ${native_export_file}
COMMAND ${CMAKE_COMMAND} -E echo "EXPORTS" > ${native_export_file}
COMMAND ${CAT} ${export_file_backslashes} >> ${native_export_file}
COMMAND ${CAT} ${export_file_nativeslashes} >> ${native_export_file}
DEPENDS ${export_file}
VERBATIM
COMMENT "Creating export file for ${target_name}")
if(CYGWIN OR MINGW)
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " ${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
else()
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " /DEF:${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
set(export_file_linker_flag "${CMAKE_CURRENT_BINARY_DIR}/${native_export_file}")
if(MSVC)
set(export_file_linker_flag "/DEF:${export_file_linker_flag}")
endif()
set_property(TARGET ${target_name} APPEND_STRING PROPERTY
LINK_FLAGS " ${export_file_linker_flag}")
endif()
add_custom_target(${target_name}_exports DEPENDS ${native_export_file})