CXX for watcher-c

Author: henderkes

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

@@ -18,7 +18,7 @@ protected function build(): void
     {
         shell()->cd($this->source_dir . '/watcher-c')
             ->initializeEnv($this)
-            ->exec(getenv('CC') . ' -c -o libwatcher-c.o ./src/watcher-c.cpp -I ./include -I ../include -std=c++17 -Wall -Wextra -fPIC')
+            ->exec(getenv('CXX') . ' -c -o libwatcher-c.o ./src/watcher-c.cpp -I ./include -I ../include -std=c++17 -Wall -Wextra -fPIC')
             ->exec(getenv('AR') . ' rcs libwatcher-c.a libwatcher-c.o');
 
         copy($this->source_dir . '/watcher-c/libwatcher-c.a', BUILD_LIB_PATH . '/libwatcher-c.a');