http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47236
Summary: Spaces introduced in option processing
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: driver
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: big...@acm.org
The fix to #44076 causes options passed to language drivers to be split into
two arguments, a feature not present in previous versions.
cat >xspecs <<EOSpec
.nc: @nesc
@nesc:
echo INVOKE: %{D*&U*&A*}
EOSpec
echo "This is TEST" > foo.nc
gcc -specs=xspecs -DTEST foo.nc
With versions prior to revision 163770, this would produce output including:
INVOKE: -DTEST
As of that version, it now produces:
INVOKE: -D TEST
This breaks the nesC component-based compiler used for TinyOS, and possibly
other similar languages that leverage the gcc driver. The space does not
appear to be introduced for built-in languages (viz., the parameter remains
-DTEST when passed to cpp for a C language file).
If this is intentional and to be fixed in the per-language driver, please
update the description of the specs language to describe the conditions under
which such canonicalization can occur.
