2 files changed, 8 insertions, 0 deletions
diff --git a/nixpkgs/pkgs/development/libraries/openbabel/2.nix b/nixpkgs/pkgs/development/libraries/openbabel/2.nix
index 3e989561470c..0cc752d993fb 100644
--- a/nixpkgs/pkgs/development/libraries/openbabel/2.nix
+++ b/nixpkgs/pkgs/development/libraries/openbabel/2.nix
@@ -19,6 +19,10 @@ stdenv.mkDerivation rec {
     })
   ];
 
+  postPatch = ''
+    sed '1i#include <ctime>' -i include/openbabel/obutil.h # gcc12
+  '';
+
   buildInputs = [ zlib libxml2 eigen python3 cairo pcre ];
 
   nativeBuildInputs = [ cmake pkg-config ];
diff --git a/nixpkgs/pkgs/development/libraries/openbabel/default.nix b/nixpkgs/pkgs/development/libraries/openbabel/default.nix
index a23382d3f892..fe12bbffa531 100644
--- a/nixpkgs/pkgs/development/libraries/openbabel/default.nix
+++ b/nixpkgs/pkgs/development/libraries/openbabel/default.nix
@@ -11,6 +11,10 @@ stdenv.mkDerivation rec {
     sha256 = "sha256-wQpgdfCyBAoh4pmj9j7wPTlMtraJ62w/EShxi/olVMY=";
   };
 
+  postPatch = ''
+    sed '1i#include <ctime>' -i include/openbabel/obutil.h # gcc12
+  '';
+
   buildInputs = [ zlib libxml2 eigen python cairo pcre swig rapidjson ];
 
   nativeBuildInputs = [ cmake pkg-config ];