perlPackages.Tk: fix build with clang 16

The jpeg `configure` script fails to detect clang as a functioning C
compiler because it uses a test with a `main` that returns an implicit
`int`, which results in an error with clang 16.

Changed files
+16
pkgs
development
top-level
+11
pkgs/development/perl-modules/tk-configure-implicit-int-fix.patch
···
+
--- a/JPEG/jpeg/configure 2013-11-15 18:50:03.000000000 -0500
+
+++ b/JPEG/jpeg/configure 2023-09-05 23:36:12.675151164 -0400
+
@@ -623,7 +623,7 @@
+
cat > conftest.$ac_ext <<EOF
+
#line 625 "configure"
+
#include "confdefs.h"
+
-main(){return(0);}
+
+int main(){return(0);}
+
EOF
+
if { (eval echo configure:629: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+
ac_cv_prog_cc_works=yes
+5
pkgs/top-level/perl-packages.nix
···
url = "mirror://cpan/authors/id/S/SR/SREZIC/Tk-804.036.tar.gz";
hash = "sha256-Mqpycaa9/twzMBGbOCXa3dCqS1yTb4StdOq7kyogCl4=";
+
patches = [
+
# Fix failing configure test due to implicit int return value of main, which results
+
# in an error with clang 16.
+
../development/perl-modules/tk-configure-implicit-int-fix.patch
+
];
makeMakerFlags = [ "X11INC=${pkgs.xorg.libX11.dev}/include" "X11LIB=${pkgs.xorg.libX11.out}/lib" ];
buildInputs = [ pkgs.xorg.libX11 pkgs.libpng ];
doCheck = false; # Expects working X11.