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| author | Maciej W. Rozycki <macro@wdc.com> | 2019-11-30 11:10:50 +0000 |
|---|---|---|
| committer | Maciej W. Rozycki <macro@gcc.gnu.org> | 2019-11-30 11:10:50 +0000 |
| commit | 7a4f45d7e61e651330931df9d09fe6299874929d (patch) | |
| tree | ae9b2d3a93d86332aadf4cefe4fc8ecc873b0f93 /gcc/gcc.c | |
| parent | bd661b0f25b18ff358cdf255a175803548689361 (diff) | |
| download | gcc-7a4f45d7e61e651330931df9d09fe6299874929d.zip gcc-7a4f45d7e61e651330931df9d09fe6299874929d.tar.gz gcc-7a4f45d7e61e651330931df9d09fe6299874929d.tar.bz2 | |
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.
From-SVN: r278872
Diffstat (limited to 'gcc/gcc.c')
| -rw-r--r-- | gcc/gcc.c | 2 |
1 files changed, 1 insertions, 1 deletions
@@ -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 |