I have PPL and CLooG installed in /usr/local/lib.
The configure script finds these two libraries and generates makefiles that
link with them simply by adding -lppl_c -lppl -lcloog. For example,
i686-slackware-linux-gcc -g -fkeep-inline-functions -DIN_GCC -W -Wall
-Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wmissing-format-attribute -pedantic -Wno-long-long -Wno-variadic-macros
-Wno-overlength-strings -Wold-style-definition -Wc++-compat -DHAVE_CONFIG_H
-o cc1-dummy c-lang.o stub-objc.o attribs.o c-errors.o c-lex.o c-pragma.o
c-decl.o c-typeck.o c-convert.o c-aux-info.o c-common.o c-opts.o c-format.o
c-semantics.o c-ppoutput.o c-cppbuiltin.o c-objc-common.o c-dump.o c-pch.o
c-parser.o i386-c.o c-gimplify.o tree-mudflap.o c-pretty-print.o c-omp.o \
dummy-checksum.o main.o libbackend.a ../libcpp/libcpp.a
../libdecnumber/libdecnumber.a ../libcpp/libcpp.a ../libiberty/libiberty.a
../libdecnumber/libdecnumber.a -lcloog -lppl_c -lppl -lgmpxx
-L/home/artem/testing/gcc-build/./gmp/.libs
-L/home/artem/testing/gcc-build/./mpfr/.libs -lmpc -lmpfr -lgmp -rdynamic -ldl
-lz -lelf
This works well when GNU ld is used, because it can be taught to look for
libraries in /usr/local/bin by editing /etc/ld.so.conf.
However, GNU gold doesn't have such an option and requires that all library
paths be passed in the command line explicitly (at least a brief look at
options.cc shows no other way to specify additional library paths).
The program can be partially resolved by saying LDFLAGS=-L/usr/local/lib
../gcc/configure ......, which makes stage1 compiler to build successfully.
However, building stage2 compiler fails because -L/usr/local/lib does not get
added to the command line during compilation of stage2.
I used the following options to configure GCC:
../gcc/configure --prefix=/usr/local/gcc-current
--libdir=/usr/local/gcc-current/lib --enable-shared --enable-bootstrap
--enable-languages=c,c++ --enable-threads=posix --enable-checking=release
--with-system-zlib --disable-libunwind-exceptions --enable-__cxa_atexit
--enable-libssp --enable-gold --enable-lto --verbose --with-arch=i686
--target=i686-slackware-linux --build=i686-slackware-linux
--host=i686-slackware-linux
--
Summary: Build fails if gold is used as linker and some libraries
reside is /usr/local/lib
Product: gcc
Version: 4.5.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: other
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: aanisimov at inbox dot ru
GCC build triplet: i686-slackware-linux
GCC host triplet: i686-slackware-linux
GCC target triplet: i686-slackware-linux
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42756
