Description of problem:

When compiling with ACLiC from within root, it doesn't include libCint.so, so it fails with a long list of error messages. This breaks a large part of the functionality of root, since scripts can then only be interpreted not compiled.

Version-Release number of selected component (if applicable):

root-core-5.32.03-1.fc17.x86_64

How reproducible:

Always

Steps to Reproduce:
1. Create a simple program like hello.C as follows:
#include <iostream>
void hello() {cout << "hello, world!" << endl;}

2. From the root prompt:
.L hello.C++
  
Actual results:
Info in <TUnixSystem::ACLiC>: creating shared library /tmp/./hello_C.so
/tmp/hello_C_ACLiC_dict.o: In function `G__hello_C_ACLiC_dict__0_1290':
/tmp/hello_C_ACLiC_dict.cxx:72: undefined reference to `G__setnull'
/tmp/hello_C_ACLiC_dict.o: In function `G__get_sizep2memfunchello_C_ACLiC_dict()':
/tmp/hello_C_ACLiC_dict.cxx:99: undefined reference to `G__setsizep2memfunc'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_typetablehello_C_ACLiC_dict':
/tmp/hello_C_ACLiC_dict.cxx:124: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:124: undefined reference to `G__search_typename2'
/tmp/hello_C_ACLiC_dict.cxx:125: undefined reference to `G__setnewtype'
/tmp/hello_C_ACLiC_dict.cxx:126: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:126: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:126: undefined reference to `G__search_typename2'
/tmp/hello_C_ACLiC_dict.cxx:127: undefined reference to `G__setnewtype'
/tmp/hello_C_ACLiC_dict.cxx:128: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:128: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:128: undefined reference to `G__search_typename2'
/tmp/hello_C_ACLiC_dict.cxx:129: undefined reference to `G__setnewtype'
/tmp/hello_C_ACLiC_dict.cxx:130: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:130: undefined reference to `G__search_typename2'
/tmp/hello_C_ACLiC_dict.cxx:131: undefined reference to `G__setnewtype'
/tmp/hello_C_ACLiC_dict.cxx:132: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:132: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:132: undefined reference to `G__search_typename2'
/tmp/hello_C_ACLiC_dict.cxx:133: undefined reference to `G__setnewtype'
/tmp/hello_C_ACLiC_dict.cxx:134: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:134: undefined reference to `G__get_linked_tagnum'
/tmp/hello_C_ACLiC_dict.cxx:134: undefined reference to `G__search_typename2'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_global0':
/tmp/hello_C_ACLiC_dict.cxx:170: undefined reference to `G__resetplocal'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_func0':
/tmp/hello_C_ACLiC_dict.cxx:187: undefined reference to `G__lastifuncposition'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_func12':
/tmp/hello_C_ACLiC_dict.cxx:226: undefined reference to `G__memfunc_setup'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_tagtablehello_C_ACLiC_dict':
/tmp/hello_C_ACLiC_dict.cxx:268: undefined reference to `G__get_linked_tagnum_fwd'
/tmp/hello_C_ACLiC_dict.cxx:269: undefined reference to `G__get_linked_tagnum_fwd'
/tmp/hello_C_ACLiC_dict.cxx:270: undefined reference to `G__get_linked_tagnum_fwd'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setuphello_C_ACLiC_dict':
/tmp/hello_C_ACLiC_dict.cxx:274: undefined reference to `G__check_setup_version'
/tmp/hello_C_ACLiC_dict.cxx:288: undefined reference to `G__getsizep2memfunc'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_typetablehello_C_ACLiC_dict':
/tmp/hello_C_ACLiC_dict.cxx:135: undefined reference to `G__setnewtype'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_global1':
/tmp/hello_C_ACLiC_dict.cxx:176: undefined reference to `G__resetglobalenv'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_func12':
/tmp/hello_C_ACLiC_dict.cxx:228: undefined reference to `G__resetifuncposition'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_tagtablehello_C_ACLiC_dict':
/tmp/hello_C_ACLiC_dict.cxx:271: undefined reference to `G__get_linked_tagnum_fwd'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_inithello_C_ACLiC_dict::~G__cpp_setup_inithello_C_ACLiC_dict()':
/tmp/hello_C_ACLiC_dict.cxx:294: undefined reference to `G__remove_setup_func'
/tmp/hello_C_ACLiC_dict.o: In function `G__cpp_setup_inithello_C_ACLiC_dict':
/tmp/hello_C_ACLiC_dict.cxx:293: undefined reference to `G__add_setup_func'
/tmp/hello_C_ACLiC_dict.cxx:293: undefined reference to `G__call_setup_funcs'
collect2: error: ld returned 1 exit status
Error in <ACLiC>: Compilation failed!

i.e. it is missing all the functions from libCint.so

Expected results:

should compile and add the function hello, which can then be called from the root prompt.

Additional info:

Workaround: gSystem->Load("libCint.so") before compiling ensures that libCint.so is already loaded, so the compilation works.

Link: http://code.compeng.uni-frankfurt.de/projects/root/repository/revisions/d33118a47b082eb6d88a64b5e31413a1e6dd8527

Making the changes suggested by the diff in that link fixes the problem for me.