builder: search for .v files in /src/ if there are none

vlib/time/time_darwin.c.v

@@ -42,8 +42,10 @@ fn init_time_base() C.mach_timebase_info_data_t {
 fn sys_mono_now_darwin() u64 {
 	tm := C.mach_absolute_time()
 	if time.time_base.denom == 0 {
+		unsafe {
 			C.mach_timebase_info(&time.time_base)
 		}
+	}
 	return (tm - time.start_time) * time.time_base.numer / time.time_base.denom
 }
 
@@ -53,8 +55,10 @@ fn sys_mono_now_darwin() u64 {
 fn vpc_now_darwin() u64 {
 	tm := C.mach_absolute_time()
 	if time.time_base.denom == 0 {
+		unsafe {
 			C.mach_timebase_info(&time.time_base)
 		}
+	}
 	return (tm - time.start_time) * time.time_base.numer / time.time_base.denom
 }
 

vlib/v/builder/builder.v

@@ -308,7 +308,19 @@ pub fn (b Builder) v_files_from_dir(dir string) []string {
 	if b.pref.is_verbose {
 		println('v_files_from_dir ("$dir")')
 	}
-	return b.pref.should_compile_filtered_files(dir, files)
+	res := b.pref.should_compile_filtered_files(dir, files)
+	if res.len == 0 {
+		// Perhaps the .v files are stored in /src/ ?
+		src_path := os.join_path(dir, 'src')
+		if os.exists(src_path) {
+			if b.pref.is_verbose {
+				println('v_files_from_dir ("$src_path") (/src/)')
+			}
+			files = os.ls(src_path) or { panic(err) }
+			return b.pref.should_compile_filtered_files(src_path, files)
+		}
+	}
+	return res
 }
 
 pub fn (b Builder) log(s string) {

vlib/v/checker/checker.v

@@ -3244,6 +3244,11 @@ pub fn (mut c Checker) prefix_expr(mut node ast.PrefixExpr) ast.Type {
 			ast.InfixExpr, ast.StringLiteral, ast.StringInterLiteral] {
 			c.error('cannot take the address of $expr', node.pos)
 		}
+		if mut node.right is ast.Ident {
+			if node.right.kind == .constant && !c.inside_unsafe && c.pref.experimental {
+				c.warn('cannot take an address of const outside `unsafe`', node.right.pos)
+			}
+		}
 		if mut node.right is ast.IndexExpr {
 			typ_sym := c.table.sym(node.right.left_type)
 			mut is_mut := false