Created attachment 582476 [details]
flint-1.6-ulong.patch

In my current work on porting sagemath to Fedora, the build failure is:

gcc -pthread -fno-strict-aliasing -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -DNDEBUG -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -D_GNU_SOURCE -fPIC -fwrapv -fPIC -I/home/pcpa/rpmbuild/BUILDROOT/sagemath-5.0.rc0-1.x86_64/usr/share/sagemath/local/include/FLINT/ -Isage/libs/flint/ -I/home/pcpa/rpmbuild/BUILDROOT/sagemath-5.0.rc0-1.x86_64/usr/share/sagemath/local/include -Ic_lib/include -I/home/pcpa/rpmbuild/BUILDROOT/sagemath-5.0.rc0-1.x86_64/usr/share/sagemath/devel/sage/sage/ext -I/usr/include/python2.7 -c sage/libs/flint/fmpq_poly.c -o build/temp.linux-x86_64-2.7/sage/libs/flint/fmpq_poly.o -std=c99 -D_XPG6 -w
In file included from /usr/include/stdlib.h:320:0,
                 from /usr/include/zn_poly/zn_poly.h:31,
                 from /home/pcpa/rpmbuild/BUILDROOT/sagemath-5.0.rc0-1.x86_64/usr/share/sagemath/local/include/FLINT/fmpz.h:39,
                 from sage/libs/flint/fmpq_poly.h:21,
                 from sage/libs/flint/fmpq_poly.c:15:
/usr/include/sys/types.h:151:27: error: duplicate 'unsigned'
error: command 'gcc' failed with exit status 1

  I am currently using fedora 16, but the problem will happen in any
current fedora.

  This pseudo patch to flint.h corrects it:

-#define ulong unsigned long
+typedef unsigned long ulong;

as gcc will then not cause an error in sys/types.h for the redefined
but identical typedef; code in sys/type.h looks like:

#ifdef __USE_MISC
/* Old compatibility names for C types.  */
typedef unsigned long int ulong;
typedef unsigned short int ushort;
typedef unsigned int uint;
#endif

  I rebuilt flint with the attached patch, to continue my work on
sagemath port to fedora.