Compiling Notes: Difference between revisions
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;Fix | ;Fix | ||
?? | ?? | ||
==='WinSendMsg' makes pointer from integer without a cast=== | |||
;Warning | |||
<PRE> | |||
vectfont.c:36:18: warning: passing argument 3 of 'WinSendMsg' makes pointer from integer without a cast [-Wint-conversion] | |||
36 | WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE), | |||
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | |||
| | | |||
| HPOINTER {aka long unsigned int} | |||
In file included from C:/usr/include/os2.h:39, | |||
from vectfont.c:7: | |||
C:/usr/include/os2emx.h:5819:59: note: expected 'MPARAM' {aka 'void *'} but argument is of type 'HPOINTER' {aka 'long unsigned int'} | |||
5819 | MRESULT APIENTRY WinSendMsg (HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2); | |||
| ~~~~~~~^~~ | |||
</PRE> | |||
;Fix | |||
Changed: | |||
<PRE> | |||
WinSendMsg (hwndFrame, WM_SETICON, | |||
WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE), | |||
NULL) ; | |||
</PRE> | |||
To: | |||
<PRE> | |||
WinSendMsg (hwndFrame, WM_SETICON, | |||
(MPARAM) WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, (BOOL) FALSE), | |||
NULL) ; | |||
</PRE> | |||
==Linkers== | ==Linkers== |
Revision as of 16:26, 27 April 2023
This are some set of light notes I took while trying to compile some old PM samples on 2023.
Enviroment
RPM Packages
I always confuse the RPM packages that I use to compile things with GCC. I want to use as much as open source tools available. Here it is what I install:
- yum install git gcc make libc-devel binutils
- watcom-wrc
- watcom-wlink-hll
Checking the Enviroments
Execute %INCLUDE% and see if soemthing shows up.
PM Code Errors/Warnings with GCC
CHAR * {aka char *}
- Warning
gcc -Wall -Zomf -c -O2 bitcat2.c -o bitcat2.obj bitcat2.c: In function 'main': bitcat2.c:36:29: warning: pointer targets in passing argument 2 of 'WinRegisterClass' differ in signedness [-Wpointer-sign] 36 | WinRegisterClass(hab, szClientClass, ClientWndProc, CS_SIZEREDRAW, 0); | | | | CHAR * {aka char *} In file included from W:/usr/include/os2.h:39, from bitcat2.c:4: W:/usr/include/os2emx.h:6138:47: note: expected 'PCSZ' {aka 'const unsigned char *'} but argument is of type 'CHAR *' {aka 'char *'}
- Fix
I replaced
static CHAR szClientClass[] = "BitCat2";
for
unsigned char szClientClass[] = "BitCat2";
and warnings were removed.
'WinCreateStdWindow' makes integer from pointer without a cast [-Wint-conversion]
vectfont.c:33:38: warning: passing argument 7 of 'WinCreateStdWindow' makes integer from pointer without a cast [-Wint-conversion] 33 | NULL, ID_RESOURCE, &hwndClient) ; | ^~~~ | | | void *
- Fix
I replaced the NULL by 0
weakld: error: Unresolved symbol (UNDEF)
- Error
weakld: error: Unresolved symbol (UNDEF) '_max'. weakld: info: The symbol is referenced by: C:\dev\DEV-SAMPLES-PM-VectFont\vf00.obj C:\dev\DEV-SAMPLES-PM-VectFont\vf14.obj weakld: error: Unresolved symbol (UNDEF) '_min'. weakld: info: The symbol is referenced by: C:\dev\DEV-SAMPLES-PM-VectFont\vf00.obj C:\dev\DEV-SAMPLES-PM-VectFont\vf05.obj C:\dev\DEV-SAMPLES-PM-VectFont\vf14.obj Ignoring unresolved externals reported from weak prelinker. Warning! W1058: file ldgVmPcu.: line(35): protmode option not valid for an OS/2 EMX executable Error! E2028: _max is an undefined reference Error! E2028: _min is an undefined reference file C:\dev\DEV-SAMPLES-PM-VectFont\vf00.obj(vf00.obj): undefined symbol _max file C:\dev\DEV-SAMPLES-PM-VectFont\vf00.obj(vf00.obj): undefined symbol _min
- Fix
??
'WinSendMsg' makes pointer from integer without a cast
- Warning
vectfont.c:36:18: warning: passing argument 3 of 'WinSendMsg' makes pointer from integer without a cast [-Wint-conversion] 36 | WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE), | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | | | HPOINTER {aka long unsigned int} In file included from C:/usr/include/os2.h:39, from vectfont.c:7: C:/usr/include/os2emx.h:5819:59: note: expected 'MPARAM' {aka 'void *'} but argument is of type 'HPOINTER' {aka 'long unsigned int'} 5819 | MRESULT APIENTRY WinSendMsg (HWND hwnd, ULONG msg, MPARAM mp1, MPARAM mp2); | ~~~~~~~^~~
- Fix
Changed:
WinSendMsg (hwndFrame, WM_SETICON, WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, FALSE), NULL) ;
To:
WinSendMsg (hwndFrame, WM_SETICON, (MPARAM) WinQuerySysPointer (HWND_DESKTOP, SPTR_APPICON, (BOOL) FALSE), NULL) ;
Linkers
Change to WLINK
You need to add:
set EMXOMFLD_TYPE=WLINK set EMXOMFLD_LINKER=wl.exe
Remember that the Wacom Linker is "wl.exe" and is on the "watcom-wlink-hll" RPM package.
Resource Compiler
- Error 1
Reading binary resource file walker.res (0) RC: error - Only integer TYPE allowed (). RC: 1 error detected make: *** [walker.exe] Error 1
- It is possible of an error on the SET INCLUDE directory. Type %INCLUDE% and check if it is pointing to the directory that contains OS2.H
- Error 2
[E:\PROJECTS\SAMPLEPACK\PMWALKER]make 2>&1 | tee make.out wrc -r walker.rc Open Watcom Windows and OS/2 Resource Compiler Version 2.0beta1 LA Portions Copyright (c) 1993-2002 Sybase, Inc. All Rights Reserved. Source code is available under the Sybase Open Watcom Public License. See http://www.openwatcom.org/ for details. walker.rc(2): Error! E062: Unable to open 'os2.h' make: *** [walker.res] Error 9
- It is possible of an error on the SET INCLUDE directory. Type %INCLUDE% and check if it is pointing to the directory that contains OS2.H