Fix syntax error

conda/meta.yaml

@@ -3,7 +3,7 @@ package:
   version: "1.2.3"
 
 source:
-  git_rev: 793134d
+  git_rev: a86c9a8
   git_url: https://bitbucket.org/glavaux/cosmotool
 
 requirements:

setup.py

@@ -175,7 +175,7 @@ class BuildCMakeExt(build_ext):
               ("CMAKE_EXE_LINKER_FLAGS_INIT", "LDFLAGS"),
               ("CMAKE_SHARED_LINKER_FLAGS_INIT", "LDFLAGS"),
               ("CMAKE_MODULE_LINKER_FLAGS_INIT", "LDFLAGS")]
-        for cmake_flag, os_flag:
+        for cmake_flag, os_flag in fill_up_settings:
           if os_flag in os.environ:
              compilers.append(f"-D{cmake_flag}={os.environ[os_flag]}")