aboutsummaryrefslogtreecommitdiff
path: root/src/libutil/util.hh
diff options
context:
space:
mode:
Diffstat (limited to 'src/libutil/util.hh')
-rw-r--r--src/libutil/util.hh3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/libutil/util.hh b/src/libutil/util.hh
index 1b0600006..d9ca1dac2 100644
--- a/src/libutil/util.hh
+++ b/src/libutil/util.hh
@@ -55,6 +55,9 @@ typedef set<Path> PathSet;
extern string thisSystem;
+/* Return an environment variable. */
+string getEnv(const string & key, const string & def = "");
+
/* Return an absolutized path, resolving paths relative to the
specified directory, or the current directory otherwise. The path
is also canonicalised. */