From 59cc4d3be46bd8cf917159a2dbf624b508eff00d Mon Sep 17 00:00:00 2001
From: Angel J <78835633+iamanaws@users.noreply.github.com>
Date: Wed, 4 Mar 2026 20:34:28 -0800
Subject: [PATCH] fasm: 1.73.74 -> 1.73.75

---
 pkgs/development/compilers/fasm/bin.nix     | 26 +++++++++++++++++++--
 pkgs/development/compilers/fasm/default.nix |  4 +++-
 2 files changed, 27 insertions(+), 3 deletions(-)

diff --git a/pkgs/development/compilers/fasm/bin.nix b/pkgs/development/compilers/fasm/bin.nix
index 1428eb91179f..21a40595f6a9 100644
--- a/pkgs/development/compilers/fasm/bin.nix
+++ b/pkgs/development/compilers/fasm/bin.nix
@@ -2,15 +2,18 @@
   stdenvNoCC,
   lib,
   fetchurl,
+  writeShellScript,
+  curl,
+  nix-update,
 }:
 
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "fasm-bin";
-  version = "1.73.34";
+  version = "1.73.35";
 
   src = fetchurl {
     url = "https://flatassembler.net/fasm-${finalAttrs.version}.tgz";
-    hash = "sha256-CAlGTsfvpDRWsHh9UysgBorjX+mygEWjFeRaznyDszw=";
+    hash = "sha256-o03sfQvC3Hn6q7aL2LwvYrbPsx1pwBRJNnzkzYCYk04=";
   };
 
   installPhase = ''
@@ -21,6 +24,25 @@ stdenvNoCC.mkDerivation (finalAttrs: {
     runHook postInstall
   '';
 
+  passthru.updateScript = writeShellScript "update-fasm" ''
+    set -euo pipefail
+
+    version=""
+    while IFS= read -r line; do
+      if [[ "$line" =~ fasm-([0-9]+\.[0-9]+\.[0-9]+)\.tgz ]]; then
+        version="''${BASH_REMATCH[1]}"
+        break
+      fi
+    done < <(${lib.getExe curl} -fsSL https://flatassembler.net/download.php)
+
+    if [[ -z "$version" ]]; then
+      echo "Could not determine latest fasm version" >&2
+      exit 1
+    fi
+
+    ${lib.getExe nix-update} fasm-bin --version "$version"
+  '';
+
   meta = {
     description = "x86(-64) macro assembler to binary, MZ, PE, COFF, and ELF";
     homepage = "https://flatassembler.net/";
diff --git a/pkgs/development/compilers/fasm/default.nix b/pkgs/development/compilers/fasm/default.nix
index 13dde1459657..02776217b25a 100644
--- a/pkgs/development/compilers/fasm/default.nix
+++ b/pkgs/development/compilers/fasm/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation {
   nativeBuildInputs = [ fasm-bin ];
 
   buildPhase = ''
-    fasm source/Linux${lib.optionalString isx86_64 "/x64"}/fasm.asm fasm
+    fasm source/linux${lib.optionalString isx86_64 "/x64"}/fasm.asm fasm
     for tool in listing prepsrc symbols; do
       fasm tools/libc/$tool.asm
       cc -o tools/libc/fasm-$tool tools/libc/$tool.o
@@ -33,4 +33,6 @@ stdenv.mkDerivation {
     cp -r examples/ *.txt tools/fas.txt $docs
     cp tools/readme.txt $docs/tools.txt
   '';
+
+  passthru.updateScript = fasm-bin.updateScript;
 }