replaced makefile with meson

meson.build

@@ -0,0 +1,19 @@
+project('myproject', 'c', version: '3.4')
+
+# Get the short git commit hash
+git_hash = run_command('git', 'rev-parse', '--short', 'HEAD', check: true).stdout().strip()
+
+# Combine version and hash
+full_version = '@0@(@1@)'.format(meson.project_version(), git_hash)
+
+# Generate header
+conf = configuration_data()
+conf.set('version', '"@0@"'.format(full_version))
+
+configure_file(
+  output: 'version.h',
+  configuration: conf
+)
+
+executable('cat', ['cat.c', 'stdin.c'], include_directories: '.')
+executable('cmpsize', ['cmpsize.c', 'bytes.c'], include_directories: '.')