diff options
| author | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-12 19:17:35 -0400 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2021-07-12 19:17:35 -0400 |
| commit | f014b1b9bb8eda4e82c1805969dbae2b07b7d54d (patch) | |
| tree | 80a22f024a04430db95263846f34f3d57ee0f5b6 /src/tools/msvc/Solution.pm | |
| parent | f10f0ae420ee62400876ab34dca2c09c20dcd030 (diff) | |
Probe for preadv/pwritev in a more macOS-friendly way.
Apple's mechanism for dealing with functions that are available
in only some OS versions confuses AC_CHECK_FUNCS, and therefore
AC_REPLACE_FUNCS. We can use AC_CHECK_DECLS instead, so long as
we enable -Werror=unguarded-availability-new. This allows people
compiling for macOS to control whether or not preadv/pwritev are
used by setting MACOSX_DEPLOYMENT_TARGET, rather than supplying
a back-rev SDK. (Of course, the latter still works, too.)
James Hilliard
Discussion: https://postgr.es/m/20210122193230.25295-1-james.hilliard1@gmail.com
Diffstat (limited to 'src/tools/msvc/Solution.pm')
| -rw-r--r-- | src/tools/msvc/Solution.pm | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/tools/msvc/Solution.pm b/src/tools/msvc/Solution.pm index b529f78a601..294b968dcdb 100644 --- a/src/tools/msvc/Solution.pm +++ b/src/tools/msvc/Solution.pm @@ -245,6 +245,8 @@ sub GenerateFiles HAVE_DECL_LLVMGETHOSTCPUFEATURES => 0, HAVE_DECL_LLVMORCGETSYMBOLADDRESSIN => 0, HAVE_DECL_POSIX_FADVISE => undef, + HAVE_DECL_PREADV => 0, + HAVE_DECL_PWRITEV => 0, HAVE_DECL_RTLD_GLOBAL => 0, HAVE_DECL_RTLD_NOW => 0, HAVE_DECL_STRLCAT => undef, @@ -335,7 +337,6 @@ sub GenerateFiles HAVE_PPC_LWARX_MUTEX_HINT => undef, HAVE_PPOLL => undef, HAVE_PREAD => undef, - HAVE_PREADV => undef, HAVE_PSTAT => undef, HAVE_PS_STRINGS => undef, HAVE_PTHREAD => undef, @@ -343,7 +344,6 @@ sub GenerateFiles HAVE_PTHREAD_IS_THREADED_NP => undef, HAVE_PTHREAD_PRIO_INHERIT => undef, HAVE_PWRITE => undef, - HAVE_PWRITEV => undef, HAVE_RANDOM => undef, HAVE_READLINE_H => undef, HAVE_READLINE_HISTORY_H => undef, |