Re: building GDB on Cygwin fails

[Chris Faylor <cgf at cygnus dot com>]

You have multiple problems here.

It looks like something has changed which causes gdb to require the
sigtramp_saved_pc function.  I wonder if this is somehow due to Mark
Kettenis's changes of 2000-03-04.

Your other problems are due to the fact that you are mixing an old
library (libtermcap.a) with a newer libcygwin.a --  _ctype_ is no longer
defined in libcygwin.a.  The simple solution is to recompile libtermcap.a
using the headers and libraries in one of the cygwin snapshots.

cgf

On Sat, Mar 11, 2000 at 10:47:01AM -0800, Andreas Kuepper wrote:
>I am running a Win98 host system and installed Cygwin
>successfully. The building of a GCC cross compiler was
>also successfully for a DOS based target system using
>DJGPP.
>
>Now I want to install GDB on my host(on Cygwin) and
>build it for my DJGPP target. By using the latest GDB
>(gdb-20000305.tar.bz2) the configure script works
>fine. But when I want to build it, I get the following
>error message while 'make' is inside the gdb-folder :
>
>bash-2.02$ make
>rm -f gdb.exe
>gcc -g        -o gdb.exe main.o libgdb.a   
>../bfd/libbfd.a ../readline/libreadline.a
>../opcodes/libopcodes.a ./../intl/libintl.a
>../libiberty/libiberty.a `if test -r
>../libtermcap/libtermcap.a; then echo
>../libtermcap/libtermcap.a; else echo -ltermcap; fi`  
>  -lm  ../libiberty/libiberty.a -luser32 
>libgdb.a(stack.o): In function `frame_info':
>/djgpp/cross/gdb2000/gdb/../../gdb-20000305/gdb/stack.c:952:
>undefined reference to `sigtramp_saved_pc'
>libgdb.a(blockframe.o): In function
>`file_frame_chain_valid':
>/djgpp/cross/gdb2000/gdb/../../gdb-20000305/gdb/blockframe.c:48:
>undefined reference to `sigtramp_saved_pc'
>libgdb.a(blockframe.o): In function `get_prev_frame':
>/djgpp/cross/gdb2000/gdb/../../gdb-20000305/gdb/blockframe.c:479:
>undefined reference to `sigtramp_saved_pc'
>libgdb.a(blockframe.o): In function
>`generic_file_frame_chain_valid':
>/djgpp/cross/gdb2000/gdb/../../gdb-20000305/gdb/blockframe.c:1276:
>undefined reference to `sigtramp_saved_pc'
>/djgpp/cross/gdb2000/gdb/../../gdb-20000305/gdb/blockframe.c:1279:
>undefined reference to `sigtramp_saved_pc'
>/cygdrive/c/CYGNUS/CYGWIN~1/H-I586~1/BIN/../lib/gcc-lib/i586-cygwin32/2.95.2/../../../libtermcap.a(tputs.o):
>In function `tputs':
>/home/noer/src/b20/comp-tools/devo/libtermcap/tputs.c:72:
>undefined reference to `_ctype_'
>/home/noer/src/b20/comp-tools/devo/libtermcap/tputs.c:75:
>undefined reference to `_ctype_'
>/home/noer/src/b20/comp-tools/devo/libtermcap/tputs.c:80:
>undefined reference to `_ctype_'
>/cygdrive/c/CYGNUS/CYGWIN~1/H-I586~1/BIN/../lib/gcc-lib/i586-cygwin32/2.95.2/../../../libtermcap.a(termcap.o):
>In function `tgetent':
>/home/noer/src/b20/comp-tools/devo/libtermcap/termcap.c:251:
>undefined reference to `_ctype_'
>/cygdrive/c/CYGNUS/CYGWIN~1/H-I586~1/BIN/../lib/gcc-lib/i586-cygwin32/2.95.2/../../../libtermcap.a(getcap.o):
>In function `cgetnext':
>/home/noer/src/b20/comp-tools/devo/libtermcap/getcap.c:686:
>undefined reference to `_ctype_'
>collect2: ld returned 1 exit status
>make: *** [gdb.exe] Error 1
>bash-2.02$ 
>
>
>I really don't know where to search for the fault
>***[gdb.exe] Error
>
>Thank you for your help !!
>
>Andreas Kuepper
>__________________________________________________
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-- 
cgf@cygnus.com                        Cygnus Solutions, a Red Hat company
http://sourcware.cygnus.com/          http://www.redhat.com/