automatic import of ccache

1 files changed, 27 insertions, 0 deletions

diff --git a/ccache.sh.in b/ccache.sh.in
new file mode 100644
index 0000000..0ce4d64
--- /dev/null
+++ b/ccache.sh.in
@@ -0,0 +1,27 @@
+# Use ccache by default.  Users who don't want that can set the CCACHE_DISABLE
+# environment variable in their personal profile.
+
+case ":${PATH:-}:" in
+    *:@LIBDIR@/ccache:*) ;;
+    *) PATH="@LIBDIR@/ccache${PATH:+:$PATH}" ;;
+esac
+
+# If @CACHEDIR@ is writable, use a shared cache there, except for root.
+# Users who don't want that even if they have the write permission can set
+# the CCACHE_DIR environment variable to another location and possibly unset
+# the CCACHE_UMASK environment variables in their personal profile.
+
+if [ -n "${CCACHE_DIR:-}" ] ; then
+    if [ ! -w "$CCACHE_DIR" ] ; then
+        # Reset broken settings maybe inherited when switching users (#651023).
+        unset CCACHE_DIR
+        unset CCACHE_UMASK
+    fi
+elif [ "${EUID:-}" != 0 ] ; then
+    if [ -w @CACHEDIR@ ] && [ -d @CACHEDIR@ ] ; then
+        # Set up the shared cache.
+        export CCACHE_DIR=@CACHEDIR@
+        export CCACHE_UMASK=002
+        unset CCACHE_HARDLINK
+    fi
+fi