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Diffstat (limited to 'contrib/tcl/unix/porting.notes')
| -rw-r--r-- | contrib/tcl/unix/porting.notes | 37 |
1 files changed, 36 insertions, 1 deletions
diff --git a/contrib/tcl/unix/porting.notes b/contrib/tcl/unix/porting.notes index 6555a20..e018b9d 100644 --- a/contrib/tcl/unix/porting.notes +++ b/contrib/tcl/unix/porting.notes @@ -26,7 +26,7 @@ and Tk to compile. You can also add new entries to that database when you install Tcl and Tk on a new platform. The Web database is likely to be more up-to-date than this file. -sccsid = SCCS: @(#) porting.notes 1.16 96/04/17 10:32:35 +sccsid = SCCS: @(#) porting.notes 1.17 96/05/18 16:49:24 -------------------------------------------- Solaris, various versions @@ -355,3 +355,38 @@ Expect failures from socket tests 2.9 and 3.1. Contact me directly if you have problems on SCO systems. Mark Diekhans <markd@sco.com> + +-------------------------------------------- +Linux 1.2.13 (gcc 2.7.0, libc.so.5.0.9) +-------------------------------------------- + +Symptoms: + +* Some extensions could not be loaded dynamically, most + prominently Blt 2.0 + + The given error message essentially said: + Could not resolve symbol '__eprintf'. + + (This procedure is used by the macro 'assert') + +Cause + +* '__eprintf' is defined in 'libgcc.a', not 'libc.so.x.y'. + It is therefore impossible to load it dynamically. + +* Neither tcl nor tk make use of 'assert', thereby + preventing a static linkage. + +Workaround + +* I included <assert.h> in 'tclAppInit.c' / 'tkAppInit.c' + and then executed 'assert (argc)' just before the call + to Tcl_Main / Tk_Main. + + This forced the static linkage of '__eprintf' and + everything went fine from then on. + + (Something like 'assert (1)', 'assert (a==a)' is not + sufficient, it will be optimized away). + |
