2 files changed, 30 insertions, 2 deletions

diff --git a/include/sitecing/sitecing_exception.h b/include/sitecing/sitecing_exception.h
index bf475ac..cb5edd9 100644
--- a/include/sitecing/sitecing_exception.h
+++ b/include/sitecing/sitecing_exception.h
@@ -1,63 +1,92 @@
 #ifndef __SITECING_SITECING_EXCEPTION_H
 #define __SITECING_SITECING_EXCEPTION_H
 
 #include <konforka/exception.h>
 
 /**
  * @file
  * @brief The site-C-ing specific exception.
  */
 
 namespace sitecing {
 
     /**
+     * The comonent failed to link.
+     */
+    class link_error : public konforka::exception {
+        public:
+            /**
+             * The component path
+             */
+            string component_path;
+
+            /**
+             * @param w the message.
+             * @param cp component path.
+             */
+            link_error(const string& w,const string& cp)
+                : konforka::exception(NOCODEPOINT,w), component_path(cp) { }
+            /**
+             * @param fi the file name where the exception is thrown from.
+             * @param fu the function name where the exception originates from.
+             * @param l the line number where the exception originates from.
+             * @param w the message.
+             * @param cp component path.
+             */
+            link_error(const string& fi,const string& fu,int l,const string& w,const string& cp)
+                : konforka::exception(fi,fu,l,w), component_path(cp) { }
+            ~link_error() throw() { }
+    };
+
+    /**
      * The component failed to compile.
      */
     class compile_error : public konforka::exception {
         public:
             /**
              * The component path
              */
             string component_path;
 
             /**
              * @param w the message.
              * @param cp component path.
              */
             compile_error(const string& w,const string& cp)
                 : konforka::exception(NOCODEPOINT,w), component_path(cp) { }
             /**
              * @param whe point in code.
              * @param wha the message.
              * @param cp component path.
              */
             compile_error(const string &whe,const string& wha,const string& cp)
                 : konforka::exception(whe,wha), component_path(cp) { }
             /**
              * @param fi the file name where the exception is thrown from.
              * @param fu the function name where the exception originates from.
              * @param l the line number where the exception originates from.
+             * @param w the message.
              * @param cp component path.
              */
             compile_error(const string &fi,const string& fu,int l,const string& w,const string& cp)
                 : konforka::exception(fi,fu,l,w), component_path(cp) { }
             ~compile_error() throw() { }
     };
 
     /**
      * Failed to preprocess component source.
      */
     class preprocessor_error : public konforka::exception {
         public:
             /**
              * Component name.
              */
             string component_name;
             /**
              * The line number of the source code where the error occured.
              */
             int line_number;
 
             /**
              * @param fi file name where the exception originates from.
              * @param fu the function name where the exception originates from.
diff --git a/lib/component_factory.cc b/lib/component_factory.cc
index a5ced6b..2a2eefe 100644
--- a/lib/component_factory.cc
+++ b/lib/component_factory.cc
@@ -151,50 +151,49 @@ namespace sitecing {
                 throw konforka::exception(CODEPOINT,"failed to open/create linker stdout");
             int stdE = open((root_intermediate+noro+".ld.stderr").c_str(),O_CREAT|O_TRUNC|O_WRONLY,0664);
             if(stdE<0) {
                 close(stdO);
                 throw konforka::exception(CODEPOINT,"failed to open/create linker stderr");
             }
             list<string> args;
             config_options *co_ld_flags = config.lookup_config(noro,config_options::flag_ld_flags);
             if(co_ld_flags) {
                 args.insert(args.end(),co_ld_flags->ld_flags.begin(),co_ld_flags->ld_flags.end());
             }
             args.push_back("-shared");
             args.push_back(o);
             file_list_t ancestors;
             get_ancestors(noro,ancestors);
             for(file_list_t::const_iterator i=ancestors.begin();i!=ancestors.end();++i) {
                 string aso=root_so+*i+".so";
                 make(aso);
                 args.push_back(aso);
             }
             args.push_back("-o"); args.push_back(dp);
             // TODO: "g++" configurable
             int rv = execute("g++",args,stdO,stdE);
             if(! (WIFEXITED(rv) && !WEXITSTATUS(rv)) )
-                // TODO:TODO: linker_error
-                throw compile_error(CODEPOINT,"failed to link component",noro);
+                throw link_error(CODEPOINT,"failed to link component",noro);
             return;
         }catch(utility_no_prefix& unp) {
             throw konforka::exception(CODEPOINT,"component is outside of component root");
         }catch(utility_no_suffix& uns) { }
         try {
             string noro = strip_prefix(dp,root_intermediate);
             // compiler targets
             for(int cct=0;cct<sizeof(cc_targets)/sizeof(*cc_targets);cct++) {
                 try {
                     string nos = strip_suffix(noro,cc_targets[cct]);
                     string cc = root_intermediate+nos+".cc";
                     string o = root_intermediate+nos+".o";
                     if(access(cc.c_str(),R_OK))
                         throw konforka::exception(CODEPOINT,string("can't access preprocessed component code (")+cc+")");
                     make_path(dir_name(cc),0755);
                     string pwd = dir_name(root_source+nos);
                     auto_chdir dir_changer(pwd);
                     file_lock lock_source(root_intermediate+nos+".lock");
                     file_lock lock_cc(root_intermediate+nos+".o.lock");
                     int stdO = open((root_intermediate+nos+".stdout").c_str(),O_CREAT|O_TRUNC|O_WRONLY,0664);
                     if(stdO<0)
                         throw konforka::exception(CODEPOINT,"failed to open/create compiler stdout");
                     int stdE = open((root_intermediate+nos+".stderr").c_str(),O_CREAT|O_TRUNC|O_WRONLY,0664);
                     if(stdE<0) {