Re: 970929 snapshot. undefined reference in libstdc++.so. Help needed !

Re: 970929 snapshot. undefined reference in libstdc++.so. Help needed !

[Jason Merrill]

>>>>> Max Lawson <mlawson@drfmc.ceng.cea.fr> writes:

> /usr/local/lib/libstdc++.so: undefined reference to '_IO_outfloat'

You will need to force a reconfigure after applying this patch, by running
./config.status in the libio build directory.

Thu Oct  2 10:36:49 1997  Jason Merrill  <jason@yorick.cygnus.com>

	* gen-params: Fix __printf_fp test.
	* config/linuxlibc1.mt (gxx_includedir): Don't define.

Thu Oct  2 10:36:26 1997  Ulrich Drepper  <drepper@rtl.cygnus.com>

	* config/linuxlibc1.mt (_G_CONFIG_H): Don't define.
	* gen-params: Add test for __printf_fp.

Index: gen-params
===================================================================
RCS file: /cvs/cvsfiles/egcs/libio/gen-params,v
retrieving revision 1.2
retrieving revision 1.3
diff -c -r1.2 -r1.3
*** gen-params	1997/09/27 04:06:55	1.2
--- gen-params	1997/10/02 17:39:35	1.3
***************
*** 692,697 ****
--- 692,713 ----
      echo "#define ${macro_prefix}USE_INT32_FLAGS 1"
  fi
  
+ # A little test program to check if __printf_fp is available.
+ cat >dummy.c <<EOF
+ int main()
+ {
+     return __printf_fp ();
+ }
+ EOF
+ 
+ if ${CC} dummy.c >/dev/null 2>&1 ; then
+   echo "#define ${macro_prefix}HAVE_PRINTF_FP 1"
+   echo "#define ${macro_prefix}HAVE_LONG_DOUBLE_IO 1"
+ else
+   echo "#define ${macro_prefix}HAVE_PRINTF_FP 0"
+   echo "#define ${macro_prefix}HAVE_LONG_DOUBLE_IO 0"
+ fi
+ 
  # Uncomment the following line if you don't have working templates.
  # echo "#define ${macro_prefix}NO_TEMPLATES"
  
Index: config/linuxlibc1.mt
===================================================================
RCS file: /cvs/cvsfiles/egcs/libio/config/linuxlibc1.mt,v
retrieving revision 1.2
retrieving revision 1.3
diff -c -r1.2 -r1.3
*** config/linuxlibc1.mt	1997/09/27 04:06:59	1.2
--- linuxlibc1.mt	1997/10/02 17:39:40	1.3
***************
*** 1,16 ****
  # Use the libio which comes with the local libc.
  
- # That is where we keep the g++ header files.
- gxx_includedir =$(prefix)/include/g++
- 
  # Comment this out to avoid including the stdio functions in libiostream.a:
  # LIBIOSTREAM_OBJECTS = $(IO_OBJECTS) $(IOSTREAM_OBJECTS) $(STDIO_WRAP_OBJECTS) $(OSPRIM_OBJECTS)
  # LIBIOSTREAM_DEP = $(LIBIOSTREAM_OBJECTS) stdio.list
  # LIBIOSTREAM_USE = $(LIBIOSTREAM_OBJECTS) `cat stdio.list`
- 
- # Comment the above and uncomment the below to use the code in the Linux libc:
- # We have _G_config.h in /usr/include.
- _G_CONFIG_H=
  
  # We must not see the libio.h file from this library.
  LIBIO_INCLUDE=
--- 1,9 ----

Re: 970929 snapshot. undefined reference in libstdc++.so. Help needed !

[Alexandre Oliva]

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Jason Merrill writes:

>>>>>> Max Lawson <mlawson@drfmc.ceng.cea.fr> writes:
>> /usr/local/lib/libstdc++.so: undefined reference to '_IO_outfloat'

> +   echo "#define ${macro_prefix}HAVE_PRINTF_FP 0"

Sometimes HAVE_PRINTF_FP is tested with #ifdef instead of #if.  Here's
a patch that allows me to build libio in SunOS 4.1.3, after applying
your patch.

-- 
Alexandre Oliva
mailto:oliva@dcc.unicamp.br mailto:aoliva@acm.org
Universidade Estadual de Campinas, SP, Brasil

[-- Attachment #2: libio.diff --]
[-- Type: text/x-diff, Size: 892 bytes --]

	* libio.h: _G_HAVE_PRINTF_FP's value must be tested, not its
	definition
	* iostream.cc: ditto

--- libio/libio.h~	Wed Oct  1 09:41:05 1997
+++ libio/libio.h	Fri Oct  3 16:35:38 1997
@@ -71,7 +71,7 @@
 # define const
 #endif
 #define _IO_UNIFIED_JUMPTABLES 1
-#ifndef _G_HAVE_PRINTF_FP
+#if !_G_HAVE_PRINTF_FP
 # define _IO_USE_DTOA 1
 #endif
 
--- libio/iostream.cc~	Wed Oct  1 09:41:05 1997
+++ libio/iostream.cc	Fri Oct  3 16:36:22 1997
@@ -615,7 +615,7 @@
 	  prec = 6; /* default */
 
 	// Do actual conversion.
-#ifdef _G_HAVE_PRINTF_FP
+#if _G_HAVE_PRINTF_FP
 	{
 	  struct printf_info info = { prec: prec,
 				      width: width(0),
@@ -718,7 +718,7 @@
       if (prec <= 0 && !(flags() & ios::fixed))
 	prec = 6; /* default */
 
-#ifdef _G_HAVE_PRINTF_FP
+#if _G_HAVE_PRINTF_FP
       // Do actual conversion.
       struct printf_info info = { prec: prec,
 				  width: width(0),

Re: 970929 snapshot. undefined reference in libstdc++.so. Help needed !

[H.J. Lu]

> 
> 	Hi.
> 
> I've downloaded the 970929 snapshot and succeded building
> the compiler (make bootstrap LANGUAGES="c c++" BOOT_CFLAGS="-g -O2").
> My box is i586-pc-linux-gnulibc1
> 
> I've made the installation (make install LANGUAGES="c c++" CFLAGS ="-g -O2").
> As I tried to compile a test-program (that the pevious snapshot didn't succeed
> compile), I got a linker error.... To summarize, I can't link the 
> following program:
> 

Please get libc 5.4.39 at

ftp://tsx-11.mit.edu/pub/linux/packages/GCC/private/tofu


H.J.

970929 snapshot. undefined reference in libstdc++.so. Help needed !

[Max Lawson]

	Hi.

I've downloaded the 970929 snapshot and succeded building
the compiler (make bootstrap LANGUAGES="c c++" BOOT_CFLAGS="-g -O2").
My box is i586-pc-linux-gnulibc1

I've made the installation (make install LANGUAGES="c c++" CFLAGS ="-g -O2").
As I tried to compile a test-program (that the pevious snapshot didn't succeed
compile), I got a linker error.... To summarize, I can't link the 
following program:

--------------------test.cc----
#include <iostream.h>
int main() { cout << "hello\n"; return 0; }
--------------------cc.tset----
$ g++ -g test.cc
/usr/local/lib/libstdc++.so: undefined reference to '_IO_outfloat'
collect2: ld returned 1 exit status.

Thanx in advance for your help, Max