Red Hat Bugzilla – Bug 187025
[gcj] Ignores -Werror
Last modified: 2008-05-06 11:40:32 EDT
Description of problem:
-Werror doesn't work
Version-Release number of selected component (if applicable):
gcc 4.1.0 20060304
Steps to Reproduce:
1.try to use -Werror with gcj
exits with success
exit with failure
$ gcj -Werror -Wall -c -o /dev/null
../../../frysk/frysk-imports/tests/werror/Werror.java:6: warning: An empty
declaration is a deprecated feature that should not be used.
}; // This stray semi-colon attracts a warning.
$ echo $?
From initial skimming it looks like it is only parse.y that doesn't honor
warnings_are_errors, because it does the diagnostics by hand.
--- gcc/java/parse.y (revision 113114)
+++ gcc/java/parse.y (working copy)
@@ -3212,7 +3212,8 @@
va_start (ap, gmsgid);
- do_warning = 1;
+ if (!warnings_are_errors)
+ do_warning = 1;
issue_warning_error_from_context (EXPR_LOCATION (cl), gmsgid, &ap);
This seems to have never been pushed upstream and never been tested as a fix. In
Fedora rawhide parse.y doesn't exist anymore. But the above still doesn't work
because of bug #231020 which makes -Werror an invalid flag.
The bug is present in all pre Java 1.5 GCJ versions. GCC4 on RHEL 4, and GCC on
RHEL 5 and FC-6 for instance.
You may want to clone this against those distro-s and push through fixes.
Alternatively you could make Java 1.5 GCJ available there.
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sorry it's taken so long for your bug to be properly triaged and acted
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