diff --git a/pkgs/build-support/gcc-cross-wrapper/default.nix b/pkgs/build-support/gcc-cross-wrapper/default.nix
index d3494b83a87..fe2a530e1e8 100644
--- a/pkgs/build-support/gcc-cross-wrapper/default.nix
+++ b/pkgs/build-support/gcc-cross-wrapper/default.nix
@@ -44,7 +44,8 @@ stdenv.mkDerivation {
   ldWrapper = ./ld-wrapper.sh;
   utils = ./utils.sh;
   addFlags = ./add-flags;
-  inherit nativeTools nativeLibc nativePrefix gcc libc binutils;
+  inherit nativeTools nativeLibc nativePrefix gcc binutils;
+  libc = if libc ? out then libc.out else libc;
   crossConfig = if cross != null then cross.config else null;
   osxMinVersion = cross.osxMinVersion or null;
   gccLibs = if gcc != null then gccLibs else null;
diff --git a/pkgs/development/compilers/gcc/5/default.nix b/pkgs/development/compilers/gcc/5/default.nix
index 9e0220ffc72..2512e90ff03 100644
--- a/pkgs/development/compilers/gcc/5/default.nix
+++ b/pkgs/development/compilers/gcc/5/default.nix
@@ -256,9 +256,9 @@ stdenv.mkDerivation ({
            sed -i "${gnu_h}" \
                -es'|LIB_SPEC *"\(.*\)$|LIB_SPEC "${extraLibSpec} \1|g'
 
-           echo "setting \`NATIVE_SYSTEM_HEADER_DIR' and \`STANDARD_INCLUDE_DIR' to \`${libc}/include'..."
+           echo "setting \`NATIVE_SYSTEM_HEADER_DIR' and \`STANDARD_INCLUDE_DIR' to \`${libc.dev}/include'..."
            sed -i "${gnu_h}" \
-               -es'|#define STANDARD_INCLUDE_DIR.*$|#define STANDARD_INCLUDE_DIR "${libc}/include"|g'
+               -es'|#define STANDARD_INCLUDE_DIR.*$|#define STANDARD_INCLUDE_DIR "${libc.dev}/include"|g'
         ''
     else if cross != null || stdenv.cc.libc != null then
       # On NixOS, use the right path to the dynamic linker instead of
@@ -272,7 +272,7 @@ stdenv.mkDerivation ({
              grep -q LIBC_DYNAMIC_LINKER "$header" || continue
              echo "  fixing \`$header'..."
              sed -i "$header" \
-                 -e 's|define[[:blank:]]*\([UCG]\+\)LIBC_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define \1LIBC_DYNAMIC_LINKER\2 "${libc}\3"|g'
+                 -e 's|define[[:blank:]]*\([UCG]\+\)LIBC_DYNAMIC_LINKER\([0-9]*\)[[:blank:]]"\([^\"]\+\)"$|define \1LIBC_DYNAMIC_LINKER\2 "${libc.out}\3"|g'
            done
         ''
     else null;
@@ -482,15 +482,28 @@ stdenv.mkDerivation ({
                                           ++ optional (libpthread != null) libpthread)));
 
   EXTRA_TARGET_CFLAGS =
-    if cross != null && libcCross != null
-    then "-idirafter ${libcCross}/include"
+    if cross != null && libcCross != null then [
+        "-idirafter ${libcCross.dev}/include"
+      ]
+      ++ optionals (! crossStageStatic) [
+        "-B${libcCross.out}/lib"
+      ]
     else null;
 
   EXTRA_TARGET_LDFLAGS =
-    if cross != null && libcCross != null
-    then "-B${libcCross}/lib -Wl,-L${libcCross}/lib" +
-         (optionalString (libpthreadCross != null)
-           " -L${libpthreadCross}/lib -Wl,${libpthreadCross.TARGET_LDFLAGS}")
+    if cross != null && libcCross != null then [
+        "-Wl,-L${libcCross.out}/lib"
+      ]
+      ++ (if crossStageStatic then [
+        "-B${libcCross.out}/lib"
+      ] else [
+        "-Wl,-rpath,${libcCross.out}/lib"
+        "-Wl,-rpath-link,${libcCross.out}/lib"
+      ])
+      ++ optionals (libpthreadCross != null) [
+        "-L${libpthreadCross}/lib"
+        "-Wl,${libpthreadCross.TARGET_LDFLAGS}"
+      ]
     else null;
 
   passthru =
diff --git a/pkgs/development/compilers/gcc/builder.sh b/pkgs/development/compilers/gcc/builder.sh
index 22107e72ef7..bff96d274ac 100644
--- a/pkgs/development/compilers/gcc/builder.sh
+++ b/pkgs/development/compilers/gcc/builder.sh
@@ -70,10 +70,6 @@ if test "$noSysDirs" = "1"; then
         # gcj in.
         unset LIBRARY_PATH
         unset CPATH
-        if test -z "$crossStageStatic"; then
-            EXTRA_TARGET_CFLAGS="-B${libcCross}/lib -idirafter ${libcCross}/include"
-            EXTRA_TARGET_LDFLAGS="-Wl,-L${libcCross}/lib -Wl,-rpath,${libcCross}/lib -Wl,-rpath-link,${libcCross}/lib"
-        fi
     else
         if test -z "$NIX_CC_CROSS"; then
             EXTRA_TARGET_CFLAGS="$EXTRA_FLAGS"