fix building

build.cm

@@ -26,9 +26,10 @@ function get_local_dir() {
 }
 
 // Replace sigils in a string
-// Supports: $LOCAL -> .cell/local, $PACKAGE -> package dir (if provided)
+// Supports: $LOCAL -> absolute path to .cell/local, $PACKAGE -> package dir (if provided)
 function replace_sigils(str, pkg_dir) {
-  var r = replace(str, '$LOCAL', get_local_dir())
+  var local = fd.realpath('.') + '/' + get_local_dir()
+  var r = replace(str, '$LOCAL', local)
   if (pkg_dir) r = replace(r, '$PACKAGE', pkg_dir)
   return r
 }
@@ -138,6 +139,11 @@ Build.compile_file = function(pkg, file, target, opts) {
   push(cmd_parts, '-DCELL_USE_NAME=' + sym_name)
   push(cmd_parts, '-I"' + pkg_dir + '"')
 
+  // Auto-discover include/ directory
+  if (fd.is_dir(pkg_dir + '/include')) {
+    push(cmd_parts, '-I"' + pkg_dir + '/include"')
+  }
+
   // External packages need core's source dir for cell.h, quickjs.h, blob.h
   if (pkg != 'core') {
     core_dir = shop.get_package_dir('core')
@@ -165,7 +171,7 @@ Build.compile_file = function(pkg, file, target, opts) {
   push(cmd_parts, '"' + src_path + '"')
   
   var cmd_str = text(cmd_parts, ' ')
-  
+
   // Content hash: command + file content
   var file_content = fd.slurp(src_path)
   var hash_input = cmd_str + '\n' + text(file_content)
@@ -180,13 +186,32 @@ Build.compile_file = function(pkg, file, target, opts) {
     return obj_path
   }
   
-  // Compile
-  var full_cmd = cmd_str + ' -o "' + obj_path + '"'
+  // Compile — capture stderr to detect missing-header vs real errors
+  var err_path = '/tmp/cell_build_err_' + hash + '.log'
+  var full_cmd = cmd_str + ' -o "' + obj_path + '" 2>"' + err_path + '"'
+  var err_text = null
+  var missing = null
+  var err_lines = null
+  var first_err = null
   log.console('Compiling ' + file)
   var ret = os.system(full_cmd)
   if (ret != 0) {
-    print('Compilation failed: ' + file)
-    print('Command: ' + full_cmd)
+    if (fd.is_file(err_path)) {
+      err_text = text(fd.slurp(err_path))
+    }
+    if (err_text) {
+      missing = search(err_text, /fatal error: [''].*[''] file not found/)
+      if (missing == null) missing = search(err_text, /fatal error: .*: No such file or directory/)
+    }
+    if (missing != null) {
+      err_lines = array(err_text, "\n")
+      first_err = length(err_lines) > 0 ? err_lines[0] : err_text
+      print(file + ': ' + first_err + ' (SDK not installed?)')
+    } else {
+      print('Compilation failed: ' + file)
+      if (err_text) print(err_text)
+      else print('Command: ' + full_cmd)
+    }
     return null
   }
 
@@ -353,8 +378,6 @@ Build.build_dynamic = function(pkg, target, buildtype) {
   var pkg_dir = shop.get_package_dir(pkg)
   var cached_cflags = replace_sigils_array(pkg_tools.get_flags(pkg, 'CFLAGS', _target), pkg_dir)
 
-  log.console(`CFLAGS ${pkg}: ${text(cached_cflags, '|')}`)
-
   // Compile support sources to cached objects
   var sources = pkg_tools.get_sources(pkg)
   var support_objects = []
@@ -785,6 +808,9 @@ Build.build_all_dynamic = function(target, buildtype) {
   var packages = shop.list_packages()
   var results = []
   var core_mods = null
+  var total_files = 0
+  var total_ok = 0
+  var total_fail = 0
 
   // Build core first
   if (find(packages, function(p) { return p == 'core' }) != null) {
@@ -799,6 +825,24 @@ Build.build_all_dynamic = function(target, buildtype) {
     push(results, {package: pkg, modules: pkg_mods})
   })
 
+  // Print build report
+  print('\n--- Build Report ---')
+  arrfor(results, function(r) {
+    var pkg_dir = shop.get_package_dir(r.package)
+    var c_files = pkg_tools.get_c_files(r.package, _target, true)
+    var file_count = length(c_files)
+    var ok_count = length(r.modules)
+    var fail_count = file_count - ok_count
+    total_files = total_files + file_count
+    total_ok = total_ok + ok_count
+    total_fail = total_fail + fail_count
+    if (file_count == 0) return
+    var status = fail_count == 0 ? 'OK' : `${ok_count}/${file_count}`
+    print(`  ${r.package}: ${status}`)
+  })
+  print(`Total: ${total_ok}/${total_files} compiled, ${total_fail} failed`)
+  print('--------------------\n')
+
   return results
 }