GCC Bugzilla Bug 15226

Bootstrapping on AIX 4.2.1 (yeah, I know it's old) fails because of some
missing
declarations (FILHDR and SYMENT, they're in filehdr.h syms.h respectively).  I
got it to build by adding those includes to gcc/collect2.c (I'll attach the
trivial patch, it's probably not the right thing but it works for me).

$ /home/dtucker/gcc-3.4.0/configure --enable-languages=c --disable-nls
--with-included-gettext --enable-threads=aix && make bootstrap
[snip build]
gcc   -g  -DIN_GCC   -W -Wall -Wwrite-strings -Wstrict-prototypes
-Wmissing-prototypes -pedantic -Wno-long-long    -DHAVE_CONFIG_H    -I. -I.
-I/home/dtucker/gcc-3.4.0/gcc -I/home/dtucker/gcc-3.4.0/gcc/.
-I/home/dtucker/gcc-3.4.0/gcc/../include   \
-DTARGET_MACHINE=\"powerpc-ibm-aix4.2.1.0\" \
-c /home/dtucker/gcc-3.4.0/gcc/collect2.c -o collect2.o
In file included from /home/dtucker/gcc-3.4.0/gcc/collect2.c:102:
/usr/include/ldfcn.h:50: error: parse error before "FILHDR"
/usr/include/ldfcn.h:52: error: parse error before '}' token
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2645: error: parse error before "SYMENT"
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2645: warning: function declaration
isn't
a prototype
/home/dtucker/gcc-3.4.0/gcc/collect2.c: In function `scan_prog_file':
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: `U802WRMAGIC' undeclared
(first use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: (Each undeclared identifier
is reported only once
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: for each function it
appears
in.)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: `U802ROMAGIC' undeclared
(first use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: `U802TOCMAGIC' undeclared
(first use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2684: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2687: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2687: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2689: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2694: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2694: error: `F_SHROBJ' undeclared
(first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2699: error: `SYMENT' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2699: error: parse error before "symbol"
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2701: warning: implicit declaration of
function `ldtbread'
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2701: error: `symbol' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2705: error: `C_EXT' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2705: error: `N_UNDEF' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2705: error: `N_TMASK' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2705: error: `DT_NON' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2705: error: `N_BTSHFT' undeclared
(first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2705: error: `DT_FCN' undeclared (first
use in this function)
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2799: error: dereferencing pointer to
incomplete type
/home/dtucker/gcc-3.4.0/gcc/collect2.c:2810: warning: implicit declaration of
function `ldclose'

Created an attachment (id=6196) [edit]
Add includes for filehdr.h and syms.h

collect2.c includes a.out.h for OBJECT_FORMAT_COFF.  I no longer have access to
AIX 4.2.1, but current AIX /usr/include/a.out.h includes xcoff.h, which includes
filehdr.h and syms.h.

this is still broken in both gcc 3.4.5 and gcc 4.0.2 on aix 4.2.1
(well, it is marked as wontfix, thus it was to be expected)