1 files changed, 57 insertions, 0 deletions
diff --git a/src/template/darwin b/src/template/darwin
new file mode 100644
index 0000000..e14d53b
--- /dev/null
+++ b/src/template/darwin
@@ -0,0 +1,57 @@
+# src/template/darwin
+
+# Note: Darwin is the original code name for macOS, also known as OS X.
+# We still use "darwin" as the port name, partly because config.guess does.
+
+# Select where system include files should be sought, if user didn't say.
+if test x"$PG_SYSROOT" = x"" ; then
+  # This is far more complicated than it ought to be.  We first ask
+  # "xcrun --show-sdk-path", which seems to match the default -isysroot
+  # setting of Apple's compilers.
+  PG_SYSROOT=`xcrun --show-sdk-path 2>/dev/null`
+  # That may fail, or produce a result that is not version-specific (i.e.,
+  # just ".../SDKs/MacOSX.sdk").  Using a version-specific sysroot seems
+  # desirable, so if the path is a non-version-specific symlink, expand it.
+  if test -L "$PG_SYSROOT"; then
+    if expr x"$PG_SYSROOT" : '.*[0-9]\.[0-9][^/]*$' >/dev/null ; then : okay
+    else
+      PG_SYSROOT=`expr "$PG_SYSROOT" : '\(.*\)/'`/`readlink "$PG_SYSROOT"`
+    fi
+  fi
+  # If there are still not digits in the directory name, try
+  # "xcrun --sdk macosx --show-sdk-path"; and if that still doesn't work,
+  # fall back to asking xcodebuild, which is often a good deal slower.
+  if expr x"$PG_SYSROOT" : '.*[0-9]\.[0-9][^/]*$' >/dev/null ; then : okay
+  else
+    PG_SYSROOT=`xcrun --sdk macosx --show-sdk-path 2>/dev/null`
+    if expr x"$PG_SYSROOT" : '.*[0-9]\.[0-9][^/]*$' >/dev/null ; then : okay
+    else
+      PG_SYSROOT=`xcodebuild -version -sdk macosx Path 2>/dev/null`
+    fi
+  fi
+fi
+# Validate the result: if it doesn't point at a directory, ignore it.
+if test x"$PG_SYSROOT" != x"" ; then
+  if test -d "$PG_SYSROOT" ; then
+    CPPFLAGS="-isysroot $PG_SYSROOT $CPPFLAGS"
+    LDFLAGS="-isysroot $PG_SYSROOT $LDFLAGS"
+  else
+    PG_SYSROOT=""
+  fi
+fi
+
+# Extra CFLAGS for code that will go into a shared library
+CFLAGS_SL=""
+
+# Select appropriate semaphore support.  Darwin 6.0 (macOS 10.2) and up
+# support System V semaphores; before that we have to use named POSIX
+# semaphores, which are less good for our purposes because they eat a
+# file descriptor per backend per max_connection slot.
+case $host_os in
+  darwin[015].*)
+    USE_NAMED_POSIX_SEMAPHORES=1
+    ;;
+  *)
+    USE_SYSV_SEMAPHORES=1
+    ;;
+esac