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[CMake] Define _FILE_OFFSET_BITS=64 on Solaris

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This is the compantion patch to https://reviews.llvm.org/D64482, needed to ensure
that builds with host compilers that don't yet predefine _FILE_OFFSET_BITS=64 on
Solaris succeed by always making the host and freshly built clang consistent.

Tested on x86_64-pc-solaris2.11.

Differential Revision: https://reviews.llvm.org/D64483


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@367304 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rainer Orth 2019-07-30 10:33:20 +00:00
parent fa9636b934
commit ac2843934b
2 changed files with 11 additions and 0 deletions
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5
CMakeLists.txt
View File

@ -833,6 +833,11 @@ if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
add_definitions("-D_LARGE_FILE_API")
endif()
# Build with _FILE_OFFSET_BITS=64 on Solaris to match g++ >= 9.
if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
add_definitions("-D_FILE_OFFSET_BITS=64")
endif()
# Work around a broken bfd ld behavior. When linking a binary with a
# foo.so library, it will try to find any library that foo.so uses and
# check its symbols. This is wasteful (the check was done when foo.so

6
cmake/config-ix.cmake
View File

@ -30,6 +30,12 @@ if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "AIX")
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_LARGE_FILE_API")
endif()
# Do checks with _FILE_OFFSET_BITS=64 on Solaris, because we will build
# with those too.
if (UNIX AND ${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
list(APPEND CMAKE_REQUIRED_DEFINITIONS "-D_FILE_OFFSET_BITS=64")
endif()
# include checks
check_include_file(dlfcn.h HAVE_DLFCN_H)
check_include_file(errno.h HAVE_ERRNO_H)