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-rw-r--r--src/libstore/Makefile.am1
-rw-r--r--src/libstore/globals.cc3
-rw-r--r--src/libstore/globals.hh3
3 files changed, 7 insertions, 0 deletions
diff --git a/src/libstore/Makefile.am b/src/libstore/Makefile.am
index 46e18be23163..3dfb1e0c3a24 100644
--- a/src/libstore/Makefile.am
+++ b/src/libstore/Makefile.am
@@ -23,6 +23,7 @@ AM_CXXFLAGS = -Wall \
  -DNIX_CONF_DIR=\"$(sysconfdir)/nix\" \
  -DNIX_LIBEXEC_DIR=\"$(libexecdir)\" \
  -DNIX_BIN_DIR=\"$(bindir)\" \
+ -DNIX_VERSION=\"$(VERSION)\" \
  -I$(srcdir)/.. -I$(srcdir)/../libutil \
  -I$(srcdir)/../libstore
 
diff --git a/src/libstore/globals.cc b/src/libstore/globals.cc
index 7b881d1d2ff8..bb453a45199e 100644
--- a/src/libstore/globals.cc
+++ b/src/libstore/globals.cc
@@ -197,4 +197,7 @@ Settings::SettingsMap Settings::getOverrides()
 }
 
 
+const string nixVersion = NIX_VERSION;
+
+
 }
diff --git a/src/libstore/globals.hh b/src/libstore/globals.hh
index d25ee6adca30..953eed9c36a2 100644
--- a/src/libstore/globals.hh
+++ b/src/libstore/globals.hh
@@ -190,4 +190,7 @@ private:
 extern Settings settings;
 
 
+extern const string nixVersion;
+
+
 }