Merge #235121: unzip: fix configure script when using clang 16

...into staging

2 files changed, 25 insertions, 0 deletions

diff --git a/pkgs/tools/archivers/unzip/default.nix b/pkgs/tools/archivers/unzip/default.nix
index f61bc9df66d58..b0a4484e87f37 100644
--- a/pkgs/tools/archivers/unzip/default.nix
+++ b/pkgs/tools/archivers/unzip/default.nix
@@ -60,6 +60,9 @@ stdenv.mkDerivation rec {
       ];
       sha256 = "sha256-on79jElQ+z2ULWAq14RpluAqr9d6itHiZwDkKubBzTc=";
     })
+    # Clang 16 makes implicit declarations an error by default for C99 and newer, causing the
+    # configure script to fail to detect errno and the directory libraries on Darwin.
+    ./implicit-declarations-fix.patch
   ] ++ lib.optional enableNLS
     (fetchurl {
       url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/app-arch/unzip/files/unzip-6.0-natspec.patch?id=56bd759df1d0c750a065b8c845e93d5dfa6b549d";
@@ -67,6 +70,7 @@ stdenv.mkDerivation rec {
       sha256 = "67ab260ae6adf8e7c5eda2d1d7846929b43562943ec4aff629bd7018954058b1";
     });
 
+
   nativeBuildInputs = [ bzip2 ];
   buildInputs = [ bzip2 ] ++ lib.optional enableNLS libnatspec;
 
diff --git a/pkgs/tools/archivers/unzip/implicit-declarations-fix.patch b/pkgs/tools/archivers/unzip/implicit-declarations-fix.patch
new file mode 100644
index 0000000000000..df19bf1722f93
--- /dev/null
+++ b/pkgs/tools/archivers/unzip/implicit-declarations-fix.patch
@@ -0,0 +1,21 @@
+--- a/unix/configure	2009-04-16 15:25:12.000000000 -0400
++++ b/unix/configure	2023-05-30 15:18:33.670321348 -0400
+@@ -408,7 +408,7 @@
+ echo Check for errno declaration
+ cat > conftest.c << _EOF_
+ #include <errno.h>
+-main()
++int main()
+ {
+   errno = 0;
+   return 0;
+@@ -419,6 +419,8 @@
+ 
+ echo Check for directory libraries
+ cat > conftest.c << _EOF_
++#include <sys/types.h>
++#include <dirent.h>
+ int main() { return closedir(opendir(".")); }
+ _EOF_
+ 
+