spec: need configuration for "sysroot"

assets/specTemplate.cfg

@@ -116,7 +116,7 @@ default:
 %ifndef %{gcc_dir}
 #%   define  gcc_dir        /SW/compilers/GCC/Linux/x86_64/gcc-6.3.0
 %   define  gcc_dir       @@GCCDIR@@
-%   define sysroot_dir /usr/sw/standard-830-6b-test
+%   define sysroot_dir @@SYSROOT@@
 %endif
 
 # EDIT if needed: the preENV line adds library directories to the runtime

src/spec/index.ts

@@ -63,13 +63,15 @@ export interface ConfigOptions {
     gccdir: string;
     optimize: string[];
     ldflags: string[];
+    sysroot: string;
 }
 
 export function renderConfig(options: ConfigOptions) {
     return `# Rendered from TypeScript ${new Date().toLocaleString()}, do not edit!\n\n\n` + specTemplate
         .replace("@@GCCDIR@@", options.gccdir)
         .replace("@@OPTIMIZE@@", options.optimize.join(' '))
-        .replace("@@LDFLAGS@@", options.ldflags.join(' '));
+        .replace("@@LDFLAGS@@", options.ldflags.join(' '))
+        .replace("@@SYSROOT@@", options.sysroot);
 }