On Wednesday 18 January 2012 09:16:27 pm Ken Moffat wrote:
[putolin]
> I disagree with the first part. I don't have the book open in front
> of me (just shutting down, but this looked important enough to take a
> look).
>
> I use ./configure --prefix=/usr and I also have 'unset CFLAGS'
> before this because of the following comment:
>
> # checking whether the gcc linker
> # (/tools/x86_64-unknown-linux-gnu/bin/ld -m elf_x86_64) supports
> # shared libraries... ./configure: line 8413: : supported targets:.*
> # elf: command not found no
> #
> http://lists.gforge.inria.fr/pipermail/mpc-discuss/2011-February/000809.htm
>l # and then
> #
> http://lists.gforge.inria.fr/pipermail/mpc-discuss/2011-February/000819.htm
>l
>
> From that, and with my buildscript functions to rename static libs
> to .hidden and to note what now exists which is newer than when I
> began to build the package (might not catch all the headers), I see
> the following were installed:
>
> /usr/include/mpc.h
> /usr/lib/libmpc.a.hidden
> /usr/lib/libmpc.la
> /usr/lib/libmpc.so
> /usr/lib/libmpc.so.2
> /usr/lib/libmpc.so.2.0.0
> /usr/share/info/dir
> /usr/share/info/mpc.info
I believe I may have found the problema
When I build it with the following
MAKEFLAGS="-j4"
CFLAGS="-march=i686 -mtune=i686 -O2 -pipe -fomit-frame-pointer"
CXXFLAGS="${CFLAGS}"
LDFLAGS="-Wl,-O1 -Wl,--as-needed"
export CFLAGS CXXFLAGS LDFLAGS MAKEFLAGS
It will _NOT_ build the shared libraries
usr/lib/libmpc.so.2
usr/lib/libmpc.so.2.0.0
usr/lib/libmpc.so
Removing the CFLAGS and CXXFLAGS will result in the libraries being built
Here is a partial diff between the two build logs,
The first is without CFLAGS set <
The second with CFLAGS set >
< mv -f .deps/sqrt.Tpo .deps/sqrt.Plo
< /bin/sh ../libtool --tag=CC --mode=compile
gcc -std=gnu99 -DHAVE_CONFIG_H -I. -I.. -march=i686 -mtune=i686 -O2 -pipe
-fomit-frame-pointer -MT
tanh.lo -MD -MP -MF .deps/tanh.Tpo -c -o tanh.lo tanh.c
mv -f .deps/sqrt.Tpo .deps/sqrt.Plo
> /bin/sh ../libtool --tag=CC --mode=compile
gcc -DHAVE_CONFIG_H -I. -I.. -march=i686 -mtune=i686 -O2 -pipe
-fomit-frame-pointer -MT
tan.lo -MD -MP -MF .deps/tan.Tpo -c -o tan.lo tan.c
As you see the only difference is
gcc -std=gnu99 - without CFLAGS set
gcc - with CFLAGS set
This is at the bottom where the shared library is created
> libtool: compile:
gcc -DHAVE_CONFIG_H -I. -I.. -march=i686 -mtune=i686 -O2 -pipe
-fomit-frame-pointer -MT
ui_ui_sub.lo -MD -MP -MF .deps/ui_ui_sub.Tpo -c ui_ui_sub.c -o ui_ui_sub.o
409,412c337
< /bin/sh ../libtool --tag=CC --mode=link
gcc -std=gnu99 -march=i686 -mtune=i686 -O2 -pipe -fomit-frame-pointer
-version-info
2:0:0 -Wl,-O1 -Wl,--as-needed -o libmpc.la -rpath /usr/lib abs.lo acos.lo
acosh.lo add.lo add_fr.lo add_si.lo add_ui.lo arg.lo asin.lo asinh.lo atan.lo
atanh.lo clear.lo cmp.lo cmp_si_si.lo conj.lo cosh.lo div_2exp.lo div.lo
div_fr.lo div_ui.lo exp.lo fma.lo fr_div.lo fr_sub.lo get.lo get_prec2.lo
get_prec.lo get_str.lo get_version.lo imag.lo init2.lo init3.lo inp_str.lo
log.lo mem.lo mul_2exp.lo mul.lo mul_fr.lo mul_i.lo mul_si.lo mul_ui.lo
neg.lo norm.lo out_str.lo pow.lo pow_fr.lo pow_ld.lo pow_d.lo pow_si.lo
pow_ui.lo pow_z.lo proj.lo real.lo urandom.lo set.lo set_prec.lo set_str.lo
set_x.lo set_x_x.lo sin_cos.lo sinh.lo sqr.lo sqrt.lo strtoc.lo sub.lo
sub_fr.lo sub_ui.lo swap.lo tan.lo tanh.lo uceil_log2.lo ui_div.lo
ui_ui_sub.lo -lmpfr -lgmp -lm
< libtool: link:
gcc -std=gnu99 -shared .libs/abs.o .libs/acos.o .libs/acosh.o .libs/add.o
.libs/add_fr.o .libs/add_si.o .libs/add_ui.o .libs/arg.o .libs/asin.o
.libs/asinh.o .libs/atan.o .libs/atanh.o .libs/clear.o .libs/cmp.o
.libs/cmp_si_si.o .libs/conj.o .libs/cosh.o .libs/div_2exp.o .libs/div.o
.libs/div_fr.o .libs/div_ui.o .libs/exp.o .libs/fma.o .libs/fr_div.o
.libs/fr_sub.o .libs/get.o .libs/get_prec2.o .libs/get_prec.o .libs/get_str.o
.libs/get_version.o .libs/imag.o .libs/init2.o .libs/init3.o .libs/inp_str.o
.libs/log.o .libs/mem.o .libs/mul_2exp.o .libs/mul.o .libs/mul_fr.o
.libs/mul_i.o .libs/mul_si.o .libs/mul_ui.o .libs/neg.o .libs/norm.o
.libs/out_str.o .libs/pow.o .libs/pow_fr.o .libs/pow_ld.o .libs/pow_d.o
.libs/pow_si.o .libs/pow_ui.o .libs/pow_z.o .libs/proj.o .libs/real.o
.libs/urandom.o .libs/set.o .libs/set_prec.o .libs/set_str.o .libs/set_x.o
.libs/set_x_x.o .libs/sin_cos.o .libs/sinh.o .libs/sqr.o .libs/sqrt.o
.libs/strtoc.o .libs/sub.o .libs/sub_fr.o .libs/sub_ui.o
.libs/swap.o .libs/tan.o .libs/tanh.o .libs/uceil_log2.o .libs/ui_div.o
.libs/ui_ui_sub.o -lmpfr -lgmp -lm -march=i686 -mtune=i686 -Wl,-O1
-Wl,--as-needed -Wl,-soname -Wl,libmpc.so.2 -o .libs/libmpc.so.2.0.0
< libtool: link: (cd ".libs" && rm -f "libmpc.so.2" &&
ln -s "libmpc.so.2.0.0" "libmpc.so.2")
< libtool: link: (cd ".libs" && rm -f "libmpc.so" &&
ln -s "libmpc.so.2.0.0" "libmpc.so")
---
> /bin/sh ../libtool --tag=CC --mode=link
gcc -march=i686 -mtune=i686 -O2 -pipe -fomit-frame-pointer -version-info
2:0:0 -Wl,-O1 -Wl,--as-needed -o libmpc.la -rpath /usr/lib abs.lo acos.lo
acosh.lo add.lo add_fr.lo add_si.lo add_ui.lo arg.lo asin.lo asinh.lo atan.lo
atanh.lo clear.lo cmp.lo cmp_si_si.lo conj.lo cosh.lo div_2exp.lo div.lo
div_fr.lo div_ui.lo exp.lo fma.lo fr_div.lo fr_sub.lo get.lo get_prec2.lo
get_prec.lo get_str.lo get_version.lo imag.lo init2.lo init3.lo inp_str.lo
log.lo mem.lo mul_2exp.lo mul.lo mul_fr.lo mul_i.lo mul_si.lo mul_ui.lo
neg.lo norm.lo out_str.lo pow.lo pow_fr.lo pow_ld.lo pow_d.lo pow_si.lo
pow_ui.lo pow_z.lo proj.lo real.lo urandom.lo set.lo set_prec.lo set_str.lo
set_x.lo set_x_x.lo sin_cos.lo sinh.lo sqr.lo sqrt.lo strtoc.lo sub.lo
sub_fr.lo sub_ui.lo swap.lo tan.lo tanh.lo uceil_log2.lo ui_div.lo
ui_ui_sub.lo -lmpfr -lgmp -lm
This is from the configure.ac file
dnl Setup CC and CFLAGS
dnl Check for user specification of CC or CFLAGS
if test -n "$CFLAGS" || test -n "$CC" ; then
user_redefine_cc=yes
fi
It looks like if you set CFLAGS you will need to do autoreconf as there must
be something in the distributed configure script that make it not build the
shared libiraries when CFLAGS is set.
Salamat po
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