[Bug bootstrap/28469] New: stage2 error: toplev.c redefines floor_log2

[gcc-bugzilla at gcc dot gnu dot org]

When executing `make bootstrap', the following error occurs.

stage1/xgcc -Bstage1/ -B/usr/local/i686-pc-linux-gnu/bin/   -O2 -g
-fomit-frame-pointer -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long -Wno-variadic-macros
-Wold-style-definition     -DHAVE_CONFIG_H -I. -I.
-I../../share/src/gcc-4.0.3/gcc -I../../share/src/gcc-4.0.3/gcc/.
-I../../share/src/gcc-4.0.3/gcc/../include
-I../../share/src/gcc-4.0.3/gcc/../libcpp/include     \
  -DTARGET_NAME=\"i686-pc-linux-gnu\" \
  -c ../../share/src/gcc-4.0.3/gcc/toplev.c -o toplev.o
../../share/src/gcc-4.0.3/gcc/toplev.c: In function 'toplev_main':
../../share/src/gcc-4.0.3/gcc/toplev.c:548: sorry, unimplemented: inlining
failed in call to 'floor_log2': redefined extern inline functions are not
considered for inlining
../../share/src/gcc-4.0.3/gcc/toplev.c:1713: sorry, unimplemented: called from
here
../../share/src/gcc-4.0.3/gcc/toplev.c:548: sorry, unimplemented: inlining
failed in call to 'floor_log2': redefined extern inline functions are not
considered for inlining
../../share/src/gcc-4.0.3/gcc/toplev.c:1717: sorry, unimplemented: called from
here
../../share/src/gcc-4.0.3/gcc/toplev.c:548: sorry, unimplemented: inlining
failed in call to 'floor_log2': redefined extern inline functions are not
considered for inlining
../../share/src/gcc-4.0.3/gcc/toplev.c:1719: sorry, unimplemented: called from
here
../../share/src/gcc-4.0.3/gcc/toplev.c:548: sorry, unimplemented: inlining
failed in call to 'floor_log2': redefined extern inline functions are not
considered for inlining
../../share/src/gcc-4.0.3/gcc/toplev.c:1723: sorry, unimplemented: called from
here
make[2]: *** [toplev.o] Error 1

Will post full preprocessed code on request.  It actually contains the
`floor_log2' declarations in order as follows.  Describing their line
numbers in the same way as preprocessor does.

# 168 "../../share/src/gcc-4.0.3/gcc/toplev.h"
extern int floor_log2 (unsigned long);
# 183 "../../share/src/gcc-4.0.3/gcc/toplev.h"
extern __inline__ __attribute__((always_inline)) __attribute__((always_inline))
int
floor_log2 (unsigned long x)
{
/* skipping */
# 546 "../../share/src/gcc-4.0.3/gcc/toplev.c"
int
floor_log2 (unsigned long x)
{

Inline definition in `toplev.h' is not output by preprocessor with
older gcc versions, including that of old / stage 1 compiler.

Environment:
System: Linux way2go 2.6.3-27mdk #1 Tue May 31 21:48:42 MDT 2005 i686 unknown
unknown GNU/Linux
Architecture: i686

Old compiler is `gcc-3.3.2-6mdk'.  On stage 1 `GCC_VERSION' numeric
value is 3003.
host: i686-pc-linux-gnu
build: i686-pc-linux-gnu
target: i686-pc-linux-gnu
configured with: ../share/src/gcc-4.0.3/configure --enable-languages=c

How-To-Repeat:
        make bootstrap


-- 
           Summary: stage2 error: toplev.c redefines floor_log2
           Product: gcc
           Version: 4.0.3
            Status: UNCONFIRMED
          Severity: critical
          Priority: P2
         Component: bootstrap
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: gin at mo dot msk dot ru
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28469