| #!/bin/sh | |
| # | |
| # Select where system include files should be sought. If the user specified a | |
| # sysroot, validate it. | |
| # | |
| # A separate script so it can be shared between autoconf and meson. | |
| PG_SYSROOT=$1 | |
| if test x"$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 | |
| echo $PG_SYSROOT | |
| fi | |
| fi |