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meson: Fix support for empty darwin sysroot

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The -isysroot options should only be added if the sysroot resolved to
a nonempty string.  This matches the behavior in src/template/darwin
(also documented in installation.sgml).

Discussion: https://www.postgresql.org/message-id/flat/60765bf0-5027-4b23-9f78-4a365d28823f%40enterprisedb.com
This commit is contained in:
Peter Eisentraut 2023-03-27 08:41:40 +02:00
parent 0276ae42dd
commit c15631f0f5
1 changed files with 4 additions and 2 deletions
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6
meson.build
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@ -233,8 +233,10 @@ elif host_system == 'darwin'
sysroot_args = [files('src/tools/darwin_sysroot'), get_option('darwin_sysroot')]
pg_sysroot = run_command(sysroot_args, check:true).stdout().strip()
message('darwin sysroot: @0@'.format(pg_sysroot))
cflags += ['-isysroot', pg_sysroot]
ldflags += ['-isysroot', pg_sysroot]
if pg_sysroot != ''
cflags += ['-isysroot', pg_sysroot]
ldflags += ['-isysroot', pg_sysroot]
endif
# meson defaults to -Wl,-undefined,dynamic_lookup for modules, which we
# don't want because a) it's different from what we do for autoconf, b) it
# causes warnings starting in macOS Ventura