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Refine fenv.h handling: check if the desired macros exist, before using

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it. NetBSD/ARM and TILE-Gx are examples for platforms that have an
unusable fenv.h and this avoids the need for a blacklist.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@177865 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Joerg Sonnenberger
2013-03-25 13:13:33 +00:00
parent 1bb93a9121
commit f9a7132df8
5 changed files with 186 additions and 2 deletions
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3
cmake/config-ix.cmake
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@@ -80,6 +80,9 @@ check_include_file(utime.h HAVE_UTIME_H)
check_include_file(valgrind/valgrind.h HAVE_VALGRIND_VALGRIND_H)
check_include_file(windows.h HAVE_WINDOWS_H)
check_include_file(fenv.h HAVE_FENV_H)
check_symbol_exists(FE_ALL_EXCEPT "fenv.h" HAVE_DECL_FE_ALL_EXCEPT)
check_symbol_exists(FE_INEXACT "fenv.h" HAVE_DECL_FE_INEXACT)
check_include_file(mach/mach.h HAVE_MACH_MACH_H)
check_include_file(mach-o/dyld.h HAVE_MACH_O_DYLD_H)