1 files changed, 17 insertions, 9 deletions
diff --git a/nixpkgs/pkgs/development/compilers/gcc/9/default.nix b/nixpkgs/pkgs/development/compilers/gcc/9/default.nix
index fadfdfa47a8..305ed56df78 100644
--- a/nixpkgs/pkgs/development/compilers/gcc/9/default.nix
+++ b/nixpkgs/pkgs/development/compilers/gcc/9/default.nix
@@ -12,7 +12,7 @@
 , enableLTO ? true
 , texinfo ? null
 , perl ? null # optional, for texi2pod (then pod2man)
-, gmp, mpfr, libmpc, gettext, which
+, gmp, mpfr, libmpc, gettext, which, patchelf
 , libelf                      # optional, for link-time optimizations (LTO)
 , isl ? null # optional, for the Graphite optimization framework.
 , zlib ? null
@@ -31,6 +31,11 @@
 , buildPackages
 }:
 
+# Note: this package is used for bootstrapping fetchurl, and thus
+# cannot use fetchpatch! All mutable patches (generated by GitHub or
+# cgit) that are needed here should be included directly in Nixpkgs as
+# files.
+
 # LTO needs libelf and zlib.
 assert libelf != null -> zlib != null;
 
@@ -153,11 +158,14 @@ stdenv.mkDerivation ({
 
   # For building runtime libs
   depsBuildTarget =
-    if hostPlatform == buildPlatform then [
-      targetPackages.stdenv.cc.bintools # newly-built gcc will be used
-    ] else assert targetPlatform == hostPlatform; [ # build != host == target
-      stdenv.cc
-    ];
+    (
+      if hostPlatform == buildPlatform then [
+        targetPackages.stdenv.cc.bintools # newly-built gcc will be used
+      ] else assert targetPlatform == hostPlatform; [ # build != host == target
+        stdenv.cc
+      ]
+    )
+    ++ optional targetPlatform.isLinux patchelf;
 
   buildInputs = [
     gmp mpfr libmpc libelf
@@ -176,7 +184,7 @@ stdenv.mkDerivation ({
 
   preConfigure = import ../common/pre-configure.nix {
     inherit (stdenv) lib;
-    inherit version hostPlatform gnatboot langAda langGo;
+    inherit version hostPlatform gnatboot langAda langGo langJit;
   };
 
   dontDisableStatic = true;
@@ -242,8 +250,8 @@ stdenv.mkDerivation ({
     (import ../common/extra-target-flags.nix {
       inherit stdenv crossStageStatic langD libcCross threadsCross;
     })
-    EXTRA_TARGET_FLAGS
-    EXTRA_TARGET_LDFLAGS
+    EXTRA_FLAGS_FOR_TARGET
+    EXTRA_LDFLAGS_FOR_TARGET
     ;
 
   passthru = {