http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56057
Bug #: 56057
Summary: libbacktrace STILL doesn't honor --disable-werror
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
AssignedTo: [email protected]
ReportedBy: [email protected]
libbacktrace is not honoring --disable-werror and using -fPIC, causing a
warning (which is promoted to an error) when building a native compiler for
x86_64-w64-mingw32. This happens with revision 195330, the latest, as of this
writing. Errors below:
libtool: compile: x86_64-w64-mingw32-gcc
-L/root/win64-build/native/x86_64-w64-mingw32/lib
-L/root/win64-build/native/mingw/lib -isystem
/root/win64-build/native/x86_64-w64-mingw32/include -isystem
/root/win64-build/native/mingw/include -DHAVE_CONFIG_H -I.
-I../../../gcc-4.8.0/libbacktrace -I ../../../gcc-4.8.0/libbacktrace/../include
-I ../../../gcc-4.8.0/libbacktrace/../libgcc -I ../libgcc -funwind-tables
-frandom-seed=dwarf.lo -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute
-Wcast-qual -Werror -fPIC -g -O2 -c ../../../gcc-4.8.0/libbacktrace/dwarf.c -o
dwarf.o
../../../gcc-4.8.0/libbacktrace/dwarf.c:1:0: error: -fPIC ignored for target
(all code is position independent) [-Werror]
/* dwarf.c -- Get file/line information from DWARF for backtraces.
^
cc1: all warnings being treated as errors
make[3]: *** [dwarf.lo] Error 1
make[3]: Leaving directory
`/root/win64-build/src/gcc-build/x86_64-w64-mingw32/libbacktrace'
make[2]: *** [all] Error 2
make[2]: Leaving directory
`/root/win64-build/src/gcc-build/x86_64-w64-mingw32/libbacktrace'
make[1]: *** [all-target-libbacktrace] Error 2
make[1]: Leaving directory `/root/win64-build/src/gcc-build'
make: *** [all] Error 2
