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Commit081e86b

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Ensure HAVE_DECL_XXX macros in MSVC builds match those in Unix.
Autoconf's AC_CHECK_DECLS() always defines HAVE_DECL_whateveras 1 or 0, but some of the entries in msvc/Solution.pm showedsuch symbols as "undef" instead of 0. Fix that for consistency.There's no live bug in current usages AFAICS, but it's not hardto imagine one creeping in if more-complex #if tests get added.Back-patch to v13, which is as far back as Solution.pm containsthis data. The inconsistency still exists in the manually-filledpg_config_ext.h.win32 files of older branches; but as long as theproblem is only latent, it doesn't seem worth the trouble toclean things up there.Discussion:https://postgr.es/m/3185430.1626133592@sss.pgh.pa.us
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‎src/tools/msvc/Solution.pm‎

Lines changed: 5 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -239,18 +239,18 @@ sub GenerateFiles
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HAVE_CRYPTO_LOCK=>undef,
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HAVE_DECL_FDATASYNC=> 0,
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HAVE_DECL_F_FULLFSYNC=> 0,
242-
HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER=>undef,
243-
HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER=>undef,
242+
HAVE_DECL_LLVMCREATEGDBREGISTRATIONLISTENER=>0,
243+
HAVE_DECL_LLVMCREATEPERFJITEVENTLISTENER=>0,
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HAVE_DECL_LLVMGETHOSTCPUNAME=> 0,
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HAVE_DECL_LLVMGETHOSTCPUFEATURES=> 0,
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HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN=> 0,
247-
HAVE_DECL_POSIX_FADVISE=>undef,
247+
HAVE_DECL_POSIX_FADVISE=>0,
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HAVE_DECL_PREADV=> 0,
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HAVE_DECL_PWRITEV=> 0,
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HAVE_DECL_RTLD_GLOBAL=> 0,
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HAVE_DECL_RTLD_NOW=> 0,
252-
HAVE_DECL_STRLCAT=>undef,
253-
HAVE_DECL_STRLCPY=>undef,
252+
HAVE_DECL_STRLCAT=>0,
253+
HAVE_DECL_STRLCPY=>0,
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HAVE_DECL_STRNLEN=> 1,
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HAVE_DECL_STRTOLL=> 1,
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HAVE_DECL_STRTOULL=> 1,

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