From 3f72a67d9a2060444b45ba0167879c1b494c4764 Mon Sep 17 00:00:00 2001
From: Petr Zahradnik <junior@zahradnik.cz>
Date: Sat, 22 Mar 2025 20:41:36 +0100
Subject: [PATCH] msieve: unbreak on GCC 14

---
 pkgs/by-name/ms/msieve/package.nix            |  4 +++
 .../ms/msieve/savefile_t-pointer-type.patch   | 31 +++++++++++++++++++
 2 files changed, 35 insertions(+)
 create mode 100644 pkgs/by-name/ms/msieve/savefile_t-pointer-type.patch

diff --git a/pkgs/by-name/ms/msieve/package.nix b/pkgs/by-name/ms/msieve/package.nix
index 2562eea0c80b..b449c4e64c9b 100644
--- a/pkgs/by-name/ms/msieve/package.nix
+++ b/pkgs/by-name/ms/msieve/package.nix
@@ -17,6 +17,8 @@ stdenv.mkDerivation rec {
     hash = "sha256-6ErVn4pYPMG5VFjOQURLsHNpN0pGdp55+rjY8988onU=";
   };
 
+  patches = [ ./savefile_t-pointer-type.patch ];
+
   buildInputs = [
     zlib
     gmp
@@ -31,6 +33,8 @@ stdenv.mkDerivation rec {
     "all"
   ];
 
+  enableParallelBuilding = true;
+
   installPhase = ''
     mkdir -p $out/bin/
     cp msieve $out/bin/
diff --git a/pkgs/by-name/ms/msieve/savefile_t-pointer-type.patch b/pkgs/by-name/ms/msieve/savefile_t-pointer-type.patch
new file mode 100644
index 000000000000..32f5514328ba
--- /dev/null
+++ b/pkgs/by-name/ms/msieve/savefile_t-pointer-type.patch
@@ -0,0 +1,31 @@
+Index: include/msieve.h
+===================================================================
+--- a/include/msieve.h
++++ b/include/msieve.h
+@@ -100,9 +100,9 @@
+ 	HANDLE file_handle;
+ 	uint32 read_size;
+ 	uint32 eof;
+ #else
+-	gzFile *fp;
++	gzFile fp;
+ 	char isCompressed;
+ 	char is_a_FILE;
+ #endif
+ 	char *name;
+
+Index: common/savefile.c
+===================================================================
+--- a/common/savefile.c
++++ b/common/savefile.c
+@@ -151,9 +151,9 @@
+ 			   so we will fopen a FILE to append plainly */
+ 			fclose(fp);
+ 		}
+ 		if (s->is_a_FILE) {
+-			s->fp = (gzFile *)fopen(s->name, "a");
++			s->fp = (gzFile)fopen(s->name, "a");
+ 		} else {
+ 			s->fp = gzopen(s->name, "a");
+ 			s->isCompressed = 1;
+ 		}