BUILD-PROBLEMS-FAQ


libtool announces an error about --no-rexec option?

Just 

rm libtool ltconfig ltmain.sh

and re-run

./autogen.sh

If make fails on you in any way, be sure you are using GNU Make, 
available from ftp.gnu.org

Also, note that GNU Make 3.77 may not work properly with the
automake+configure generated Makefiles.  

Use GNU Make 3.76.1 instead.  (Harald Meland --07/06/99 gjb)


If you get lots of warnings like the below:
scwm-screen-ci.hpp:41: warning: volatile qualifier ignored on asm

-> fix line 292 of guile-1.3/libguile/__scm.h:
/* should comment out volatile (fixed in newer [unreleased] versions of guile) */
#ifdef __GNUC__
#define SCM_FENCE asm /* volatile */ ("")
#else
#define SCM_FENCE
#endif


If Guile/scwm starts up *really* slowly ( >15 seconds on a PPro200 or
better)...

You are missing the tiny patch to guile-1.3 (also available from the web 
page):

--- libguile/ports.h    1998/10/30 08:22:50     1.33
+++ libguile/ports.h    1998/11/05 16:02:55     1.34
@@ -93,7 +93,7 @@
 #define SCM_CRDY       (32L<<16) /* Should char-ready? return #t? */
 
 /* A mask used to clear the char-ready port flag. */
-#define SCM_CUC                0x001fffffL
+#define SCM_CUC                (~SCM_CRDY)
 
 #define SCM_PORTP(x) (SCM_TYP7(x)==scm_tc7_port)
 #define SCM_OPPORTP(x) (((0x7f | SCM_OPN) & SCM_CAR(x))==(scm_tc7_port | SCM_OP
N))



Problems building on Redhat 6.0 because there is no guile-config or guile-snarf script?
You need to install the guile-devel rpm -- see scwm web page or just grab it from
a Redhat mirror such as:

ftp://ftp.rge.com/pub/systems/linux/redhat/redhat-6.0/i386/RedHat/RPMS/


Core dump in _IO_setvbug?  You probably have a guile compiled with
glibc2.0, trying to run by dynamically linking against glibc2.1.

If you're on Redhat 6.0, the guile and guile-devel rpms should work fine
with Scwm.  Otherwise, it's probably most prudent to grab the guile-1.3
sources from the Scwm web page, get the local patch and apply it, then
re-build guile and re-install.  Be sure to remove any old installations
of guile, too, or at least be sure that Scwm links against the new build
of guile.



Lots of warnings like (see guile-1.3-includes.patch):

constraint-primitives.x:2: warning: ANSI C++ prohibits conversion from `(SCM)' to `(...)'

Fix this using a patch to the snarf.h header file included with guile
(and be sure your Makefile.am uses -DGUILE_CPLUSPLUS_SNARF in the rule
to create .x files from .cc files):

--- snarf.h	1999/07/06 19:20:42	1.1
+++ snarf.h	1999/07/08 19:15:28
@@ -54,10 +54,15 @@
 #define SCM_PROC1(RANAME, STR, TYPE, CFN)  \
 	static char RANAME[]=STR
 #else
+#if defined(__cplusplus) || defined(GUILE_CPLUSPLUS_SNARF)
+#define SCM_PROC(RANAME, STR, REQ, OPT, VAR, CFN)  \
+%%%	scm_make_gsubr (RANAME, REQ, OPT, VAR, (SCM (*)(...))CFN)
+#else
 #define SCM_PROC(RANAME, STR, REQ, OPT, VAR, CFN)  \
 %%%	scm_make_gsubr (RANAME, REQ, OPT, VAR, CFN)
+#endif
 #define SCM_PROC1(RANAME, STR, TYPE, CFN)  \
-%%%	scm_make_subr(RANAME, TYPE, CFN)
+%%%	scm_make_subr(RANAME, TYPE, (SCM (*)(...))CFN)
 #endif
 
 #ifndef SCM_MAGIC_SNARFER

Lots of warnings like (see guile-1.3-includes.patch):

color.c:221: warning: passing arg 1 of `gh_str02scm' discards `const' from pointer target type

and

image.c:414: warning: passing arg 1 of `scm_wrong_type_arg' discards `const' from pointer target type

Just ignore them-- they are harmless-- they can be fixed by adding
const declarations to the prototypes in libguile/error.h, guile/gh.h.


Undefined __bzero symbol?

>sync14% scwm -V
>scwm: error in loading shared libraries
>: undefined symbol: __bzero
>sync14% 

I have seen this on a stock standard Redhat 5.2, using the scwm RPM from
redhat-contrib.

I solved the problem by grabbing the SRPM file and remaking the RPM file.

This had an annoying conflict with /usr/info/dir, which I (hastily) solved
by using --force and then mv /usr/info/dir.rpmsave /usr/info/dir.

Grame Cross