crosstool-ng/scripts/build/companion_libs/cloog.sh
Benoît Thébaudeau" f173e77e32 complibs/cloog: fix linking with libm
In Ubuntu 11.04 and 11.10, the default options for ld have changed.
--no-copy-dt-needed-entries and --as-needed are now enabled by default, which
causes errors like:

[EXTRA]    Checking CLooG/ppl
[DEBUG]    ==> Executing: 'make' '-j3' '-s' 'check'
[ALL  ]    Making check in .
[ALL  ]    config.status: creating include/cloog/cloog-config.h
[ALL  ]    config.status: include/cloog/cloog-config.h is unchanged
[ALL  ]    libtool: link: i686-build_pc-linux-gnu-gcc -Wall -fomit-frame-pointer
 -pipe -o cloog cloog.o  -L/<snip>/build/static/lib ./.libs/libcloog.a -lm
 /<snip>/build/static/lib/libppl_c.a /<snip>/build/static/lib/libpwl.a
 /<snip>/build/static/lib/libppl.a /<snip>/build/static/lib/libgmpxx.a
 /<snip>/build/static/lib/libgmp.a -lstdc++
[ALL  ]    /usr/bin/ld: /<snip>/build/static/lib/libppl.a(MIP_Problem.o):
 undefined reference to symbol 'sqrt@@GLIBC_2.0'
[ALL  ]    /usr/bin/ld: note: 'sqrt@@GLIBC_2.0' is defined in DSO
 /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so so try adding
 it to the linker command line
[ALL  ]    /usr/lib/gcc/i686-linux-gnu/4.6.1/../../../i386-linux-gnu/libm.so:
 could not read symbols: Invalid operation
[ALL  ]    collect2: ld returned 1 exit status
[ERROR]    make[2]: *** [cloog] Error 1
[ERROR]    make[1]: *** [check-recursive] Error 1

See:
https://wiki.ubuntu.com/NattyNarwhal/ToolchainTransition

This patch fixes these errors by placing '-lm' at the right place on the command
line as libppl requires libm when linking cloog.

Signed-off-by: "Benoît Thébaudeau" <benoit.thebaudeau@advansee.com>
2012-01-27 13:31:16 +01:00

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# This file adds the functions to build the CLooG library
# Copyright 2009 Yann E. MORIN
# Licensed under the GPL v2. See COPYING in the root of this package
do_cloog_get() { :; }
do_cloog_extract() { :; }
do_cloog() { :; }
# Overide functions depending on configuration
if [ "${CT_CLOOG}" = "y" ]; then
# Download CLooG
do_cloog_get() {
CT_GetFile "cloog-ppl-${CT_CLOOG_VERSION}" \
ftp://gcc.gnu.org/pub/gcc/infrastructure
}
# Extract CLooG
do_cloog_extract() {
local _t
# Version 0.15.3 has a dirname 'cloog-ppl' (with no version in it!)
# while versions 0.15.4 onward do have the version in the dirname.
# But, because the infrastructure properly creates the extracted
# directories (with tar's --strip-components), we can live safely...
CT_Extract "cloog-ppl-${CT_CLOOG_VERSION}"
CT_Patch "cloog-ppl" "${CT_CLOOG_VERSION}"
if [ "${CT_CLOOG_NEEDS_AUTORECONF}" = "y" ]; then
CT_Pushd "${CT_SRC_DIR}/cloog-ppl-${CT_CLOOG_VERSION}"
CT_DoExecLog CFG ./autogen.sh
CT_Popd
fi
}
do_cloog() {
local cloog_src_dir="${CT_SRC_DIR}/cloog-ppl-${CT_CLOOG_VERSION}"
mkdir -p "${CT_BUILD_DIR}/build-cloog-ppl"
cd "${CT_BUILD_DIR}/build-cloog-ppl"
CT_DoStep INFO "Installing CLooG/ppl"
CT_DoLog EXTRA "Configuring CLooG/ppl"
CT_DoExecLog CFG \
CFLAGS="${CT_CFLAGS_FOR_HOST}" \
LIBS="-lm" \
"${cloog_src_dir}/configure" \
--build=${CT_BUILD} \
--host=${CT_HOST} \
--prefix="${CT_COMPLIBS_DIR}" \
--with-gmp="${CT_COMPLIBS_DIR}" \
--with-ppl="${CT_COMPLIBS_DIR}" \
--with-bits=gmp \
--with-host-libstdcxx='-lstdc++' \
--disable-shared \
--enable-static
CT_DoLog EXTRA "Building CLooG/ppl"
CT_DoExecLog ALL make ${JOBSFLAGS} libcloog.la
if [ "${CT_COMPLIBS_CHECK}" = "y" ]; then
CT_DoLog EXTRA "Checking CLooG/ppl"
CT_DoExecLog ALL make ${JOBSFLAGS} -s check
fi
CT_DoLog EXTRA "Installing CLooG/ppl"
CT_DoExecLog ALL make install-libLTLIBRARIES install-pkgincludeHEADERS
CT_EndStep
}
fi # CT_CLOOG