diff options
Diffstat (limited to 'gcc/gcc.c')
| -rw-r--r-- | gcc/gcc.c | 30 |
1 files changed, 26 insertions, 4 deletions
@@ -421,6 +421,7 @@ or with constant text in a single argument. %w marks the argument containing or following the %w as the "output file" of this compilation. This puts the argument into the sequence of arguments that %o will substitute later. + %V indicates that this compilation produces no "output file". %W{...} like %{...} but mark last argument supplied within as a file to be deleted on failure. @@ -914,9 +915,19 @@ static const struct compiler default_compilers[] = %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", 0}, {".h", "@c-header", 0}, {"@c-header", - "%{!E:%ecompilation of header file requested} \ - %(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)", - 0}, + /* cc1 has an integrated ISO C preprocessor. We should invoke the + external preprocessor if -save-temps is given. */ + "%{E|M|MM:%(trad_capable_cpp) %(cpp_options) %(cpp_debug_options)}\ + %{!E:%{!M:%{!MM:\ + %{save-temps|traditional-cpp:%(trad_capable_cpp) \ + %(cpp_options) %b.i \n\ + cc1 -fpreprocessed %b.i %(cc1_options)\ + -o %g.s %{!o*:--output-pch=%i.pch}\ + %W{o*:--output-pch=%*}%V}\ + %{!save-temps:%{!traditional-cpp:\ + cc1 %(cpp_unique_options) %(cc1_options)\ + -o %g.s %{!o*:--output-pch=%i.pch}\ + %W{o*:--output-pch=%*}%V}}}}}", 0}, {".i", "@cpp-output", 0}, {"@cpp-output", "%{!M:%{!MM:%{!E:cc1 -fpreprocessed %i %(cc1_options) %{!fsyntax-only:%(invoke_as)}}}}", 0}, @@ -4765,6 +4776,10 @@ do_spec_1 (spec, inswitch, soft_matched_part) this_is_library_file = 1; break; + case 'V': + outfiles[input_file_number] = NULL; + break; + case 'w': this_is_output_file = 1; break; @@ -6079,6 +6094,7 @@ main (argc, argv) size_t i; int value; int linker_was_run = 0; + int num_linker_inputs = 0; char *explicit_link_files; char *specs_file; const char *p; @@ -6516,9 +6532,15 @@ main (argc, argv) error_count++; } + /* Determine if there are any linker input files. */ + num_linker_inputs = 0; + for (i = 0; (int) i < n_infiles; i++) + if (explicit_link_files[i] || outfiles[i] != NULL) + num_linker_inputs++; + /* Run ld to link all the compiler output files. */ - if (error_count == 0) + if (num_linker_inputs > 0 && error_count == 0) { int tmp = execution_count; |