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9d23c15a03
It emerges that in some phases of the moon (perhaps to do with directory entry order?), xcrun will report that the SDK path is /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk which is normally a symlink to a version-numbered sibling directory. Our heuristic to skip non-version-numbered pathnames was rejecting that, which is the wrong thing to do. We'd still like to end up with a version-numbered PG_SYSROOT value, but we can have that by dereferencing the symlink. Like the previous fix, back-patch to all supported versions. Discussion: https://postgr.es/m/522433.1611089678@sss.pgh.pa.us
58 lines
2.1 KiB
Plaintext
58 lines
2.1 KiB
Plaintext
# src/template/darwin
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# Note: Darwin is the original code name for macOS, also known as OS X.
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# We still use "darwin" as the port name, partly because config.guess does.
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# Select where system include files should be sought, if user didn't say.
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if test x"$PG_SYSROOT" = x"" ; then
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# This is far more complicated than it ought to be. We first ask
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# "xcrun --show-sdk-path", which seems to match the default -isysroot
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# setting of Apple's compilers.
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PG_SYSROOT=`xcrun --show-sdk-path 2>/dev/null`
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# That may fail, or produce a result that is not version-specific (i.e.,
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# just ".../SDKs/MacOSX.sdk"). Using a version-specific sysroot seems
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# desirable, so if the path is a non-version-specific symlink, expand it.
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if test -L "$PG_SYSROOT"; then
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if expr x"$PG_SYSROOT" : '.*[0-9]\.[0-9][^/]*$' >/dev/null ; then : okay
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else
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PG_SYSROOT=`expr "$PG_SYSROOT" : '\(.*\)/'`/`readlink "$PG_SYSROOT"`
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fi
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fi
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# If there are still not digits in the directory name, try
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# "xcrun --sdk macosx --show-sdk-path"; and if that still doesn't work,
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# fall back to asking xcodebuild, which is often a good deal slower.
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if expr x"$PG_SYSROOT" : '.*[0-9]\.[0-9][^/]*$' >/dev/null ; then : okay
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else
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PG_SYSROOT=`xcrun --sdk macosx --show-sdk-path 2>/dev/null`
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if expr x"$PG_SYSROOT" : '.*[0-9]\.[0-9][^/]*$' >/dev/null ; then : okay
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else
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PG_SYSROOT=`xcodebuild -version -sdk macosx Path 2>/dev/null`
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fi
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fi
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fi
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# Validate the result: if it doesn't point at a directory, ignore it.
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if test x"$PG_SYSROOT" != x"" ; then
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if test -d "$PG_SYSROOT" ; then
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CPPFLAGS="-isysroot $PG_SYSROOT $CPPFLAGS"
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LDFLAGS="-isysroot $PG_SYSROOT $LDFLAGS"
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else
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PG_SYSROOT=""
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fi
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fi
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# Extra CFLAGS for code that will go into a shared library
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CFLAGS_SL=""
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# Select appropriate semaphore support. Darwin 6.0 (macOS 10.2) and up
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# support System V semaphores; before that we have to use named POSIX
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# semaphores, which are less good for our purposes because they eat a
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# file descriptor per backend per max_connection slot.
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case $host_os in
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darwin[015].*)
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USE_NAMED_POSIX_SEMAPHORES=1
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;;
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*)
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USE_SYSV_SEMAPHORES=1
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;;
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esac
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