Mine

rm -f .libs/identificateur.lo
ccache arm-linux-g++ -march=armv5te -mtune=xscale -DHAVE_CONFIG_H -I. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/g
iac-0.5.0/src -I.. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0/src -I/home/enpsgp/dev/build/tmp/work/gia
c-0.5.0-r0/giac-0.5.0 -I/home/enpsgp/dev/build/tmp/staging/arm-linux/include -I/home/enpsgp/dev/build/tmp/staging/arm-l
inux/include -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 -fpermissive -c identificateur.cc  -
fPIC -DPIC -o .libs/identificateur.lo
ccache arm-linux-g++ -march=armv5te -mtune=xscale -DHAVE_CONFIG_H -I. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/g
iac-0.5.0/src -I.. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0/src -I/home/enpsgp/dev/build/tmp/work/gia
c-0.5.0-r0/giac-0.5.0 -I/home/enpsgp/dev/build/tmp/staging/arm-linux/include -I/home/enpsgp/dev/build/tmp/staging/arm-l
inux/include -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 -fpermissive -c identificateur.cc -o
 identificateur.o >/dev/null 2>&1
mv -f .libs/identificateur.lo identificateur.lo
/bin/sh ../libtool --mode=compile ccache arm-linux-g++ -march=armv5te -mtune=xscale -DHAVE_CONFIG_H -I. -I/home/enpsgp/
dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0/src -I.. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0/src -I/
home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0  -I/home/enpsgp/dev/build/tmp/staging/arm-linux/include  -I/hom
e/enpsgp/dev/build/tmp/staging/arm-linux/include -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 
-fpermissive -c gen.cc
rm -f .libs/gen.lo
ccache arm-linux-g++ -march=armv5te -mtune=xscale -DHAVE_CONFIG_H -I. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/g
iac-0.5.0/src -I.. -I/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0/src -I/home/enpsgp/dev/build/tmp/work/gia
c-0.5.0-r0/giac-0.5.0 -I/home/enpsgp/dev/build/tmp/staging/arm-linux/include -I/home/enpsgp/dev/build/tmp/staging/arm-l
inux/include -fexpensive-optimizations -fomit-frame-pointer -frename-registers -O2 -fpermissive -c gen.cc  -fPIC -DPIC 
-o .libs/gen.lo
gen.cc: In function `giac::gen giac::read_binary(const std::string&, unsigned int)':
gen.cc:5792: error: `mpfr_set_str_raw' undeclared (first use this function)
gen.cc:5792: error: (Each undeclared identifier is reported only once for each function it appears in.)
make[2]: *** [gen.lo] Error 1
make[2]: Leaving directory `/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0/src'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/enpsgp/dev/build/tmp/work/giac-0.5.0-r0/giac-0.5.0'
make: *** [all-recursive-am] Error 2
FATAL: oe_runmake failed
[enpsgp@eapc-pg21 temp]$