lib/38826: netbsd-4 (20080601) build failing in libcvs (with tools)

To: lib-bug-people%netbsd.org@localhost,gnats-admin%netbsd.org@localhost,netbsd-bugs%netbsd.org@localhost
Subject: lib/38826: netbsd-4 (20080601) build failing in libcvs (with tools)
From: mm_lists%pulsar-zone.net@localhost
Date: Mon, 2 Jun 2008 00:25:00 +0000 (UTC)
>Number:         38826
>Category:       lib
>Synopsis:       netbsd-4 (20080601) build failing in libcvs (with tools)
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    lib-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 02 00:25:00 +0000 2008
>Originator:     Matthew Mondor
>Release:        NetBSD 4.0_STABLE
>Organization:
>Environment:
System: NetBSD hal.xisop 4.0_STABLE NetBSD 4.0_STABLE (GENERIC_MM) #0: Sun Feb 
10 02:22:15 EST 2008  
root%hal.xisop@localhost:/usr/src/sys/arch/i386/compile/GENERIC_MM i386
Architecture: i386
Machine: i386
>Description:
        After a fresh CVS checkout of netbsd-4 branch's src and xsrc, and
        deleting plus recreating the directories /usr/NetBSD-new-build,
        /usr/obj and /usr/tools:

        cd /usr/src
        ./build.sh -D /usr/NetBSD-new-build -O /usr/obj -T /usr/tools -u -x \
                build

        [...]

#   compile  libcvs/md5.o
/usr/tools/bin/i386--netbsdelf-gcc -DMALLOC_DEBUG -DRTLD_DEBUG -DDEBUG -g 
-march=i686 -O2 -pipe  -Werror    -DSETXID_SUPPORT -DHAVE_CONFIG_H  
-I/usr/src/gnu/usr.bin/xcvs/libcvs/../include -I/usr/src/gnu/dist/xcvs/lib  
-I/usr/src/gnu/dist/xcvs/diff -I/usr/src/gnu/dist/xcvs/src -DSETXID_SUPPORT 
-DHAVE_CONFIG_H  -I/usr/src/gnu/usr.bin/xcvs/libcvs/../include 
-I/usr/src/gnu/dist/xcvs/lib  -I/usr/src/gnu/dist/xcvs/diff 
-I/usr/src/gnu/dist/xcvs/src   -nostdinc -isystem 
/usr/NetBSD-new-build/usr/include -c    /usr/src/gnu/dist/xcvs/lib/md5.c -o 
md5.o
#   compile  libcvs/regex.o
/usr/tools/bin/i386--netbsdelf-gcc -DMALLOC_DEBUG -DRTLD_DEBUG -DDEBUG -g 
-march=i686 -O2 -pipe  -Werror    -DSETXID_SUPPORT -DHAVE_CONFIG_H  
-I/usr/src/gnu/usr.bin/xcvs/libcvs/../include -I/usr/src/gnu/dist/xcvs/lib  
-I/usr/src/gnu/dist/xcvs/diff -I/usr/src/gnu/dist/xcvs/src -DSETXID_SUPPORT 
-DHAVE_CONFIG_H  -I/usr/src/gnu/usr.bin/xcvs/libcvs/../include 
-I/usr/src/gnu/dist/xcvs/lib  -I/usr/src/gnu/dist/xcvs/diff 
-I/usr/src/gnu/dist/xcvs/src   -nostdinc -isystem 
/usr/NetBSD-new-build/usr/include -c    /usr/src/gnu/dist/xcvs/lib/regex.c -o 
regex.o
/usr/src/gnu/dist/xcvs/lib/regex.c: In function 're_match_2_internal':
/usr/src/gnu/dist/xcvs/lib/regex.c:5274: error: incompatible types in assignment
/usr/src/gnu/dist/xcvs/lib/regex.c:5696: error: incompatible types in assignment

*** Failed target:  regex.o
*** Failed command: /usr/tools/bin/i386--netbsdelf-gcc -DMALLOC_DEBUG 
-DRTLD_DEBUG -DDEBUG -g -march=i686 -O2 -pipe -Werror -DSETXID_SUPPORT 
-DHAVE_CONFIG_H -I/usr/src/gnu/usr.bin/xcvs/libcvs/../include 
-I/usr/src/gnu/dist/xcvs/lib -I/usr/src/gnu/dist/xcvs/diff 
-I/usr/src/gnu/dist/xcvs/src -DSETXID_SUPPORT -DHAVE_CONFIG_H 
-I/usr/src/gnu/usr.bin/xcvs/libcvs/../include -I/usr/src/gnu/dist/xcvs/lib 
-I/usr/src/gnu/dist/xcvs/diff -I/usr/src/gnu/dist/xcvs/src -nostdinc -isystem 
/usr/NetBSD-new-build/usr/include -c /usr/src/gnu/dist/xcvs/lib/regex.c -o 
regex.o
*** Error code 1

Stop.
nbmake: stopped in /usr/src/gnu/usr.bin/xcvs/libcvs

*** Failed target:  dependall
*** Failed command: cd /usr/src/gnu/usr.bin/xcvs/libcvs; /usr/tools/bin/nbmake 
realall
*** Error code 1

Stop.
nbmake: stopped in /usr/src/gnu/usr.bin/xcvs/libcvs

*** Failed target:  dependall-libcvs
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; 
case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) 
this="gnu/usr.bin/xcvs/"; real="/usr/src/gnu/usr.bin/xcvs" ;; *) 
this="gnu/usr.bin/xcvs/${dir}/"; real="/usr/src/gnu/usr.bin/xcvs/${dir}" ;; 
esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd 
"${real}" && /usr/tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; 
_makedirtarget libcvs dependall
*** Error code 1

Stop.
nbmake: stopped in /usr/src/gnu/usr.bin/xcvs

*** Failed target:  dependall-xcvs
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; 
case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this="gnu/usr.bin/"; 
real="/usr/src/gnu/usr.bin" ;; *) this="gnu/usr.bin/${dir}/"; 
real="/usr/src/gnu/usr.bin/${dir}" ;; esac; show=${this:-.}; echo "${target} 
===> ${show%/}${1:+ (with: $@)}"; cd "${real}" && /usr/tools/bin/nbmake 
_THISDIR_="${this}" "$@" ${target}; }; _makedirtarget xcvs dependall
*** Error code 1

Stop.
nbmake: stopped in /usr/src/gnu/usr.bin

*** Failed target:  dependall-usr.bin
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; 
case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this="gnu/"; 
real="/usr/src/gnu" ;; *) this="gnu/${dir}/"; real="/usr/src/gnu/${dir}" ;; 
esac; show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd 
"${real}" && /usr/tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; 
_makedirtarget usr.bin dependall
*** Error code 1

Stop.
nbmake: stopped in /usr/src/gnu

*** Failed target:  dependall-gnu
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; 
case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this=""; 
real="/usr/src" ;; *) this="${dir}/"; real="/usr/src/${dir}" ;; esac; 
show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" 
&& /usr/tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget 
gnu dependall
*** Error code 1

Stop.
nbmake: stopped in /usr/src

*** Failed target:  do-build
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; 
case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this=""; 
real="/usr/src" ;; *) this="${dir}/"; real="/usr/src/${dir}" ;; esac; 
show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" 
&& /usr/tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget 
. dependall BUILD_tools=no BUILD_lib=no
*** Error code 1

Stop.
nbmake: stopped in /usr/src

*** Failed target:  build
*** Failed command: _makedirtarget() { dir="$1"; shift; target="$1"; shift; 
case "${dir}" in /*) this="${dir}/"; real="${dir}" ;; .) this=""; 
real="/usr/src" ;; *) this="${dir}/"; real="/usr/src/${dir}" ;; esac; 
show=${this:-.}; echo "${target} ===> ${show%/}${1:+ (with: $@)}"; cd "${real}" 
&& /usr/tools/bin/nbmake _THISDIR_="${this}" "$@" ${target}; }; _makedirtarget 
. do-build
*** Error code 1

Stop.
nbmake: stopped in /usr/src

ERROR: Failed to make build
*** BUILD ABORTED ***


        I initially thought that the toolchain might have changed, but it
        isn't so:

        cc -v
Using built-in specs.
Target: i386--netbsdelf
Configured with: /usr/src/tools/gcc/../../gnu/dist/gcc4/configure 
--enable-long-long --disable-multilib --enable-threads --disable-symvers 
--build=i386-unknown-netbsdelf4.99.3 --host=i386--netbsdelf 
--target=i386--netbsdelf
Thread model: posix
gcc version 4.1.2 20061021 prerelease (NetBSD nb3 20061125)

        /usr/tools/i386--netbsdelf/bin/gcc -v
Using built-in specs.
Target: i386--netbsdelf
Configured with: /usr/src/tools/gcc/../../gnu/dist/gcc4/configure 
--target=i386--netbsdelf --disable-nls --enable-long-long --disable-multilib 
--enable-threads --program-transform-name=s,^,i386--netbsdelf-, 
--enable-languages=c c++ objc --prefix=/usr/tools
Thread model: posix
gcc version 4.1.2 20061021 (prerelease) (NetBSD nb3 20061125)

        This strikes me as odd sice /src/gnu/dist/xcvs/lib/regex.c was last
        modified as far as two years ago on netbsd-4 branch.  A possibility
        might be a rather recent toolchain update during my last netbsd-4
        upgrade, and the new toolchain causes the issue (I see that
        /src/gnu/dist/gcc4/ChangeLog history shows
        "import GCC 4.1 branch from 20061021" 19 months ago).

        It is possible that -march=i686 -O2 might play a role, I'll have to
        perform other tests and post a follow-up.  However, the same system
        has otherwise normally reliably produced netbsd-4 builds using the
        same settings.

        The two errors:
/usr/src/gnu/dist/xcvs/lib/regex.c: In function 're_match_2_internal':
/usr/src/gnu/dist/xcvs/lib/regex.c:5274: error: incompatible types in assignment
/usr/src/gnu/dist/xcvs/lib/regex.c:5696: error: incompatible types in assignment
        Are calling a huge macro and I did not yet verify after preprocessing
        phase alone what the code looks like or where it exactly breaks.

>How-To-Repeat:
>Fix:
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