[jira] [Created] (TS-2885) luajit build ignores compiler flags

["James Peach (JIRA)" <ji...@apache.org>]

James Peach created TS-2885:
-------------------------------

             Summary: luajit build ignores compiler flags
                 Key: TS-2885
                 URL: https://issues.apache.org/jira/browse/TS-2885
             Project: Traffic Server
          Issue Type: Bug
          Components: Build
            Reporter: James Peach


The luajit build ignores operator-supplied CFLAGS in certain circumstances, causing the build to break. For example, if you try to build Traffic Server as a position independent executable:

{code}
# The Q= is to get luajit to emit the complier line :-/
$ ./configure CXXFLAGS=-fPIE CFLAGS=-fPIE Q=
...
==== Building LuaJIT 2.0.3 ====
make -C src
make[4]: Entering directory `/home/vagrant/trafficserver.git/lib/luajit/src'
DYNLINK   libluajit.so
cc   -shared -fPIC -Wl,-soname,libluajit-5.1.so.2   -o libluajit.so lj_vm_dyn.o lj_gc_dyn.o lj_err_dyn.o lj_char_dyn.o lj_bc_dyn.o lj_obj_dyn.o lj_str_dyn.o lj_tab_dyn.o lj_func_dyn.o lj_udata_dyn.o lj_meta_dyn.o lj_debug_dyn.o lj_state_dyn.o lj_dispatch_dyn.o lj_vmevent_dyn.o lj_vmmath_dyn.o lj_strscan_dyn.o lj_api_dyn.o lj_lex_dyn.o lj_parse_dyn.o lj_bcread_dyn.o lj_bcwrite_dyn.o lj_load_dyn.o lj_ir_dyn.o lj_opt_mem_dyn.o lj_opt_fold_dyn.o lj_opt_narrow_dyn.o lj_opt_dce_dyn.o lj_opt_loop_dyn.o lj_opt_split_dyn.o lj_opt_sink_dyn.o lj_mcode_dyn.o lj_snap_dyn.o lj_record_dyn.o lj_crecord_dyn.o lj_ffrecord_dyn.o lj_asm_dyn.o lj_trace_dyn.o lj_gdbjit_dyn.o lj_ctype_dyn.o lj_cdata_dyn.o lj_cconv_dyn.o lj_ccall_dyn.o lj_ccallback_dyn.o lj_carith_dyn.o lj_clib_dyn.o lj_cparse_dyn.o lj_lib_dyn.o lj_alloc_dyn.o lib_aux_dyn.o lib_base_dyn.o lib_math_dyn.o lib_bit_dyn.o lib_string_dyn.o lib_table_dyn.o lib_io_dyn.o lib_os_dyn.o lib_package_dyn.o lib_debug_dyn.o lib_jit_dyn.o lib_ffi_dyn.o lib_init_dyn.o -lm -ldl
/usr/bin/ld: lj_err_dyn.o: relocation R_X86_64_TPOFF32 against `static_uex' can not be used when making a shared object; recompile with -fPIC
lj_err_dyn.o: could not read symbols: Bad value
collect2: ld returned 1 exit status
{code}

Note that it used {{-fPIC}} instead of {{-fPIE}}



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