[Bug math/14281] New: Build error on Debian unstable using gcc 4.7.1

["dschepler at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

http://sourceware.org/bugzilla/show_bug.cgi?id=14281

             Bug #: 14281
           Summary: Build error on Debian unstable using gcc 4.7.1
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
        AssignedTo: unassigned@sourceware.org
        ReportedBy: dschepler@gmail.com
    Classification: Unclassified


Created attachment 6468
  --> http://sourceware.org/bugzilla/attachment.cgi?id=6468
Preprocessed s_isnan.c

When I try building glibc from git master branch on an up-to-date Debian sid
amd64 system, with gcc-4.7 version 4.7.1-1, I get this error:

make  subdir=math -C math ..=../ subdir_lib
make[2]: Entering directory `/home/lfs/sources/glibc-2.16/math'
gcc ../sysdeps/ieee754/dbl-64/wordsize-64/s_isnan.c -c -std=gnu99
-fgnu89-inline  -O2 -Wall -Winline -Wwrite-strings -fmerge-all-constants
-frounding-math -g -Wstrict-prototypes   -fPIC    -Wno-uninitialized  
-D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES -I../include
-I/home/lfs/sources/libc-build/math -I/home/lfs/sources/libc-build
-I../sysdeps/unix/sysv/linux/x86_64/64/nptl
-I../sysdeps/unix/sysv/linux/x86_64/64 -I../nptl/sysdeps/unix/sysv/linux/x86_64
-I../nptl/sysdeps/unix/sysv/linux/x86 -I../sysdeps/unix/sysv/linux/x86
-I../sysdeps/unix/sysv/linux/x86_64 -I../sysdeps/unix/sysv/linux/wordsize-64
-I../nptl/sysdeps/unix/sysv/linux -I../nptl/sysdeps/pthread
-I../sysdeps/pthread -I../sysdeps/unix/sysv/linux -I../sysdeps/gnu
-I../sysdeps/unix/inet -I../nptl/sysdeps/unix/sysv -I../sysdeps/unix/sysv
-I../sysdeps/unix/x86_64 -I../nptl/sysdeps/unix -I../sysdeps/unix
-I../sysdeps/posix -I../nptl/sysdeps/x86_64/64 -I../sysdeps/x86_64/64
-I../sysdeps/x86_64/fpu/multiarch -I../sysdeps/x86_64/fpu -I../sysdeps/x86/fpu
-I../sysdeps/x86_64/multiarch -I../nptl/sysdeps/x86_64 -I../sysdeps/x86_64
-I../sysdeps/x86 -I../sysdeps/ieee754/ldbl-96
-I../sysdeps/ieee754/dbl-64/wordsize-64 -I../sysdeps/ieee754/dbl-64
-I../sysdeps/ieee754/flt-32 -I../sysdeps/wordsize-64 -I../sysdeps/ieee754
-I../sysdeps/generic -I../nptl  -I.. -I../libio -I.  -D_LIBC_REENTRANT -include
../include/libc-symbols.h  -DPIC -DSHARED     -o
/home/lfs/sources/libc-build/math/s_isnan.os -MD -MP -MF
/home/lfs/sources/libc-build/math/s_isnan.os.dt -MT
/home/lfs/sources/libc-build/math/s_isnan.os 
../sysdeps/ieee754/dbl-64/wordsize-64/s_isnan.c:30:1: error: '__EI___isnan'
aliased to external symbol '__GI___isnan'
make[2]: *** [/home/lfs/sources/libc-build/math/s_isnan.os] Error 1
make[2]: Leaving directory `/home/lfs/sources/glibc-2.16/math'
make[1]: *** [math/subdir_lib] Error 2
make[1]: Leaving directory `/home/lfs/sources/glibc-2.16'
make: *** [all] Error 2

Attaching s_isnan.i from running this command with -save-temps.

BTW, if I make -k, then aside from the inevitable errors from libc.a and
libc.so not being built, the only errors I get are in s_isnan.c, s_finite.c,
s_isnanf.c, and s_finitef.c.  And then later, in the others stage,
fraiseexcpt.c.

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