diff options
| author | Maciej W. Rozycki <macro@wdc.com> | 2019-11-30 11:10:50 +0000 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@wdc.com> | 2019-11-30 11:10:50 +0000 |
| commit | 37c402ccc8ee9d252c33951b435eada741d809b1 (patch) | |
| tree | ae9b2d3a93d86332aadf4cefe4fc8ecc873b0f93 | |
| parent | db18c6f364d0aaae752e7ca61ba92713f0ec9895 (diff) | |
driver: Do not warn about ineffective `-x' option if no inputs were given
Fix an issue with the GCC driver and the `-x' option where a warning is
issued in an invocation like:
$ riscv64-linux-gnu-gcc -print-multi-directory -x c++
riscv64-linux-gnu-gcc: warning: '-x c++' after last input file has no effect
lib64/lp64d
$
where no inputs were given and hence the use of `-x' is irrelevant.
The statement printed is also untrue as the `-x' does not come after the
last input file given that none was given. Do not print it then if no
inputs were supplied.
* gcc.c (process_command): Only warn about an ineffective `-x'
option if any input files have actually been supplied.
git-svn-id: https://gcc.gnu.org/svn/gcc/trunk@278872 138bc75d-0d04-0410-961f-82ee72b054a4
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/gcc.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index e17440407cb..2a29e1b2b4d 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2019-11-30 Maciej W. Rozycki <macro@wdc.com> + * gcc.c (process_command): Only warn about an ineffective `-x' + option if any input files have actually been supplied. + +2019-11-30 Maciej W. Rozycki <macro@wdc.com> + * doc/install.texi (Options specification): Remove the list of target library subdirectories supporting `--enable-version-specific-runtime-libs'. Document defaults for diff --git a/gcc/gcc.c b/gcc/gcc.c index 539ded01ce6..4428d50c390 100644 --- a/gcc/gcc.c +++ b/gcc/gcc.c @@ -4741,7 +4741,7 @@ process_command (unsigned int decoded_options_count, /* More prefixes are enabled in main, after we read the specs file and determine whether this is cross-compilation or not. */ - if (n_infiles == last_language_n_infiles && spec_lang != 0) + if (n_infiles != 0 && n_infiles == last_language_n_infiles && spec_lang != 0) warning (0, "%<-x %s%> after last input file has no effect", spec_lang); /* Synthesize -fcompare-debug flag from the GCC_COMPARE_DEBUG |