or download this
gcc-4 -c -I .././pari-2.1.7/src -I .././pari-2.1.7/src/headers -I ../
+./pari-2.1.7/src/graph -I . -DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__
+-g3 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
+ -DUSEIMPORTLIB -O3 -DVERSION=\"\" -DXS_VERSION=\"\" -Derr=pari_er
+r -DASMINLINE -DGCC_INLINE -DDYNAMIC_PLOTTING -o compat.o .././pari-2
+.1.7/src/language/compat.c
gcc-4 -c -I .././pari-2.1.7/src -I .././pari-2.1.7/src/headers -I ../
+./pari-2.1.7/src/graph -I . -DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__
+-g3 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
+ -DUSEIMPORTLIB -O3 -DVERSION=\"\" -DXS_VERSION=\"\" -Derr=pari_er
+r -DASMINLINE -DGCC_INLINE -DDYNAMIC_PLOTTING -o base3.o .././pari-2.
+1.7/src/basemath/base3.c
gcc-4 -c -I .././pari-2.1.7/src -I .././pari-2.1.7/src/headers -I ../
+./pari-2.1.7/src/graph -I . -DPERL_USE_SAFE_PUTENV -U__STRICT_ANSI__
+-g3 -fno-strict-aliasing -pipe -fstack-protector -I/usr/local/include
+ -DUSEIMPORTLIB -O3 -DVERSION=\"\" -DXS_VERSION=\"\" -Derr=pari_er
+r -DASMINLINE -DGCC_INLINE -DDYNAMIC_PLOTTING -o mp.o .././pari-2.1.7
+/src/kernel/none/mp.c
...
make[1]: *** [mp.o] Error 1
make[1]: Leaving directory `/home/arlen/.cpan/build/Math-Pari-2.010806
+05-VlhOm9/libPARI'
make: *** [libPARI/libPARI.a] Error 2