[refs: http://gcc.gnu.org/ml/gcc/2009-01/threads.html#00060
http://gcc.gnu.org/ml/gcc/2009-01/threads.html#00216 ]
Bootstrap on cygwin is currently failing during stage 3 with:
/home/andy/live-gcc/my_gcc/./gcc/xgcc
-B/home/andy/live-gcc/my_gcc/./gcc/ -B/usr/local/i686-pc-cygwin/bin/
-B/usr/local/i686-pc-cygwin/lib/ -isystem
/usr/local/i686-pc-cygwin/include -isystem
/usr/local/i686-pc-cygwin/sys-include -c -DHAVE_CONFIG_H -g -O2 -I.
-I../../../gcc/libiberty/../include -W -Wall -Wwrite-strings
-Wc++-compat -Wstrict-prototypes -pedantic
../../../gcc/libiberty/strsignal.c -o pic/strsignal.o; \
else true; fi
/home/andy/live-gcc/my_gcc/./gcc/xgcc
-B/home/andy/live-gcc/my_gcc/./gcc/ -B/usr/local/i686-pc-cygwin/bin/
-B/usr/local/i686-pc-cygwin/lib/ -isystem
/usr/local/i686-pc-cygwin/include -isystem
/usr/local/i686-pc-cygwin/sys-include -c -DHAVE_CONFIG_H -g -O2 -I.
-I../../../gcc/libiberty/../include -W -Wall -Wwrite-strings
-Wc++-compat -Wstrict-prototypes -pedantic
../../../gcc/libiberty/strsignal.c -o strsignal.o
../../../gcc/libiberty/strsignal.c:408: error: conflicting types for
'strsignal'
/usr/include/string.h:78: note: previous declaration of 'strsignal' was here
make[2]: *** [strsignal.o] Error 1
make[2]: Leaving directory
`/home/andy/live-gcc/my_gcc/i686-pc-cygwin/libiberty'
make[1]: *** [all-target-libiberty] Error 2
make[1]: Leaving directory `/home/andy/live-gcc/my_gcc'
make: *** [all] Error 2
This happens because libiberty configure has a hard-coded hack that kicks in
when building libiberty as a target library, which causes strsignal (and a
couple of others) to be removed from the list of functions for configure to
check against the system libraries, causing the libiberty versions to be built
when they aren't needed. (They used to be required; formerly, Cygwin pulled in
the object files from libiberty when linking the DLL, but this was fixed some
time ago and the hack has been obsolete since then). I am testing a patch to
remove the hack.
--
Summary: Bootstrap failure on Cygwin vs. libiberty.
Product: gcc
Version: 4.4.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: dave dot korn dot cygwin at gmail dot com
GCC build triplet: i686-pc-cygwin
GCC host triplet: i686-pc-cygwin
GCC target triplet: i686-pc-cygwin
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38903
