http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46986
Summary: Fails to build due to -Werror with --disable-werror
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: go
AssignedTo: i...@airs.com
ReportedBy: manp...@gmail.com
Building latest trunk with go enabled fails with -Werror, even with
--disable-werror specified. Relevant build log:
libtool: compile: /tmp/gcc-build/./gcc/xgcc -B/tmp/gcc-build/./gcc/
-B/usr/local/x86_64-apple-darwin10.5.0/bin/
-B/usr/local/x86_64-apple-darwin10.5.0/lib/ -isystem
/usr/local/x86_64-apple-darwin10.5.0/include -isystem
/usr/local/x86_64-apple-darwin10.5.0/sys-include -DHAVE_CONFIG_H -I.
-I/Users/dxy/VCS/GIT/gcc/libgo -I /Users/dxy/VCS/GIT/gcc/libgo/runtime
-I/Users/dxy/VCS/GIT/gcc/libgo/../libffi/include -I../libffi/include -pthread
-fexceptions -fplan9-extensions -Wall -Wextra -Wwrite-strings -Wcast-qual
-Werror -minline-all-stringops -I /Users/dxy/VCS/GIT/gcc/libgo/../gcc -I
../../gcc/include -g -O2 -MT go-go.lo -MD -MP -MF .deps/go-go.Tpo -c
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c -fno-common -DPIC -o
.libs/go-go.o
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c: In function
'runtime_stoptheworld':
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:378:29: error: 'SIGRTMIN'
undeclared (first use in this function)
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:378:29: note: each undeclared
identifier is reported only once for each function it appears in
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c: In function
'runtime_starttheworld':
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:559:29: error: 'SIGRTMIN'
undeclared (first use in this function)
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c: In function
'__go_gc_goroutine_init':
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:611:7: error: 'SIGRTMIN'
undeclared (first use in this function)
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:611:7: error: left-hand operand of
comma expression has no effect [-Werror=unused-value]
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:613:7: error: left-hand operand of
comma expression has no effect [-Werror=unused-value]
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:620:7: error: left-hand operand of
comma expression has no effect [-Werror=unused-value]
/Users/dxy/VCS/GIT/gcc/libgo/runtime/go-go.c:622:7: error: left-hand operand of
comma expression has no effect [-Werror=unused-value]
cc1: all warnings being treated as errors
make[4]: *** [go-go.lo] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-target-libgo] Error 2
make: *** [all] Error 2
Informations:
GCC version: trunk r167954
System: Mac OS X 10.6.5
Configure options: $PATH/configure \
--prefix=${PREFIX} \
--with-gmp=${PREFIX} \
--with-mpfr=${PREFIX} \
--with-mpc=${PREFIX} \
--with-ppl=${PREFIX} \
--with-cloog=${PREFIX} \
--program-suffix=-4.6 \
--enable-languages=c,c++,fortran,go \
--disable-nls \
--disable-werror \
--disable-bootstrap \
--enable-shared \
--enable-threads \
--enable-__cxa_init \
--enable-version-specific-runtime-libs \
--enable-decimal-float \
--enable-plugin \
--enable-lto \
--enable-full-dynamic-string \
--enable-concept-checks \
--enable-libstdcxx-debug \
--enable-libstdcxx-time
HTH.
Also, it seems bug#46958 and #46965 is related: both failed with -Werror
