treewide: move NIX_CFLAGS_COMPILE to the env attrset

with structuredAttrs lists will be bash arrays which cannot be exported
which will be a issue with some patches and some wrappers like cc-wrapper

this makes it clearer that NIX_CFLAGS_COMPILE must be a string as lists
in env cause a eval failure

1 files changed, 1 insertions, 1 deletions

diff --git a/pkgs/development/compilers/gerbil/build.nix b/pkgs/development/compilers/gerbil/build.nix
index 3d2fd7551e67..110378244fd0 100644
--- a/pkgs/development/compilers/gerbil/build.nix
+++ b/pkgs/development/compilers/gerbil/build.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ gambit ]
     ++ buildInputs_libraries; # ++ buildInputs_staticLibraries;
 
-  NIX_CFLAGS_COMPILE = "-I${libmysqlclient}/include/mysql -L${libmysqlclient}/lib/mysql";
+  env.NIX_CFLAGS_COMPILE = "-I${libmysqlclient}/include/mysql -L${libmysqlclient}/lib/mysql";
 
   postPatch = ''
     echo '(define (gerbil-version-string) "v${git-version}")' > src/gerbil/runtime/gx-version.scm ;