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-rw-r--r--pkgs/development/compilers/gcc/6/default.nix2
1 files changed, 1 insertions, 1 deletions
diff --git a/pkgs/development/compilers/gcc/6/default.nix b/pkgs/development/compilers/gcc/6/default.nix
index 546b1377b53a..955c683a43fa 100644
--- a/pkgs/development/compilers/gcc/6/default.nix
+++ b/pkgs/development/compilers/gcc/6/default.nix
@@ -334,7 +334,7 @@ stdenv.mkDerivation ({
     ${if javaAwtGtk then "--enable-java-awt=gtk" else ""}
     ${if langJava && javaAntlr != null then "--with-antlr-jar=${javaAntlr}" else ""}
     --with-gmp=${gmp.dev}
-    --with-mpfr=${mpfr}
+    --with-mpfr=${mpfr.dev}
     --with-mpc=${libmpc}
     ${if libelf != null then "--with-libelf=${libelf}" else ""}
     --disable-libstdcxx-pch