don't check for musl toolkit when running zig, add -static to ncurses

src/SPC/builder/unix/library/ncurses.php

@@ -14,6 +14,9 @@ trait ncurses
         $filelist = FileSystem::scanDirFiles(BUILD_BIN_PATH, relative: true);
 
         UnixAutoconfExecutor::create($this)
+            ->appendEnv([
+                'LDFLAGS' => getenv('SPC_LIBC') === 'musl' ? '-static' : ''
+            ])
             ->configure(
                 '--enable-overwrite',
                 '--with-curses-h',
@@ -22,6 +25,7 @@ trait ncurses
                 '--disable-widec',
                 '--with-normal',
                 '--with-ticlib',
+                '--with-pthread',
                 '--without-tests',
                 '--without-dlsym',
                 '--without-debug',

src/SPC/doctor/item/LinuxMuslCheck.php

@@ -29,6 +29,9 @@ class LinuxMuslCheck
         if (getenv('SPC_LIBC') === 'glibc') {
             return CheckResult::ok('Building with glibc, skipped');
         }
+        if (str_contains(getenv('CC'), 'zig')) {
+            return CheckResult::ok('Building with zig, skipped');
+        }
 
         $musl_wrapper_lib = sprintf('/lib/ld-musl-%s.so.1', php_uname('m'));
         if (file_exists($musl_wrapper_lib) && file_exists('/usr/local/musl/lib/libc.a')) {
@@ -46,6 +49,9 @@ class LinuxMuslCheck
         if (getenv('SPC_LIBC') === 'glibc') {
             return CheckResult::ok('Building with glibc, skipped');
         }
+        if (str_contains(getenv('CC'), 'zig')) {
+            return CheckResult::ok('Building with zig, skipped');
+        }
 
         $arch = arch2gnu(php_uname('m'));
         $cross_compile_lib = "/usr/local/musl/{$arch}-linux-musl/lib/libc.a";