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Support/FileSystem: Fix MinGW build. It doesn't have _chsize_s.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120826 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2010-12-03 18:48:56 +00:00
parent d253545c17
commit db04b39dad
3 changed files with 10 additions and 0 deletions
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3
cmake/config-ix.cmake
View File

@ -108,6 +108,9 @@ check_symbol_exists(strerror string.h HAVE_STRERROR)
check_symbol_exists(strerror_r string.h HAVE_STRERROR_R)
check_symbol_exists(strerror_s string.h HAVE_STRERROR_S)
check_symbol_exists(setenv stdlib.h HAVE_SETENV)
if ( LLVM_ON_WIN32 )
check_symbol_exists(_chsize_s io.h HAVE__CHSIZE_S)
endif()
check_symbol_exists(__GLIBC__ stdio.h LLVM_USING_GLIBC)
if( LLVM_USING_GLIBC )

3
include/llvm/Config/config.h.cmake
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@ -327,6 +327,9 @@
/* Define to 1 if you have the `setenv' function. */
#cmakedefine HAVE_SETENV ${HAVE_SETENV}
/* Define to 1 if you have the `_chsize_s' function. */
#cmakedefine HAVE__CHSIZE_S ${HAVE__CHSIZE_S}
/* Define to 1 if you have the `setjmp' function. */
#undef HAVE_SETJMP

4
lib/Support/Windows/PathV2.inc
View File

@ -310,7 +310,11 @@ error_code resize_file(const Twine &path, uint64_t size) {
int fd = ::_wopen(path_utf16.begin(), O_BINARY, S_IREAD | S_IWRITE);
if (fd == -1)
return error_code(errno, generic_category());
#ifdef HAVE__CHSIZE_S
errno_t error = ::_chsize_s(fd, size);
#else
errno_t error = ::_chsize(fd, size);
#endif
::close(fd);
return error_code(error, generic_category());
}