| 1 |
operz |
26 |
#!/usr/bin/env python3 |
| 2 |
|
|
"""Patch Motif lib/Xm/Xmfuncs.h for Solaris/GCC. |
| 3 |
|
|
|
| 4 |
|
|
Root cause: Xmfuncs.h defines bcopy/bzero/bcmp/memmove as function-like macros. |
| 5 |
|
|
On Solaris, X11/Xos.h later includes <strings.h> which has declarations like |
| 6 |
|
|
extern void bcopy(const void *, void *, size_t); |
| 7 |
|
|
The preprocessor expands the 'bcopy' macro AT THE DECLARATION SITE, turning it |
| 8 |
|
|
into garbage syntax that GCC rejects as a parse error. |
| 9 |
|
|
|
| 10 |
|
|
Fix: when __sun is defined, just include <string.h> + <strings.h> (which provide |
| 11 |
|
|
proper prototypes) and skip all macro definitions entirely. |
| 12 |
|
|
""" |
| 13 |
|
|
import sys, re |
| 14 |
|
|
|
| 15 |
|
|
path = sys.argv[1] |
| 16 |
|
|
with open(path) as f: |
| 17 |
|
|
content = f.read() |
| 18 |
|
|
|
| 19 |
|
|
# Find the region between #define _XFUNCS_H_ and #endif /* _XFUNCS_H_ */ |
| 20 |
|
|
# We want to insert a Solaris shortcut right after the guard define. |
| 21 |
|
|
guard_define = '#define _XFUNCS_H_\n' |
| 22 |
|
|
guard_endif = '\n#endif /* _XFUNCS_H_ */' |
| 23 |
|
|
|
| 24 |
|
|
idx_define = content.find(guard_define) |
| 25 |
|
|
idx_endif = content.rfind(guard_endif) |
| 26 |
|
|
|
| 27 |
|
|
if idx_define == -1 or idx_endif == -1: |
| 28 |
|
|
print("ERROR: could not locate include guard in Xmfuncs.h") |
| 29 |
|
|
sys.exit(1) |
| 30 |
|
|
|
| 31 |
|
|
body_start = idx_define + len(guard_define) |
| 32 |
|
|
body = content[body_start:idx_endif] |
| 33 |
|
|
|
| 34 |
|
|
solaris_shortcut = ( |
| 35 |
|
|
'\n' |
| 36 |
|
|
'/* Solaris/GCC fix: bcopy/bzero/bcmp/memmove are real functions in\n' |
| 37 |
|
|
' * <strings.h>. Defining them as macros here causes the preprocessor\n' |
| 38 |
|
|
' * to expand them inside extern declarations from <strings.h>, producing\n' |
| 39 |
|
|
' * invalid syntax. Just include the system headers and skip all macros. */\n' |
| 40 |
|
|
'#ifdef __sun\n' |
| 41 |
|
|
'# include <string.h>\n' |
| 42 |
|
|
'# include <strings.h>\n' |
| 43 |
|
|
'# define _XFUNCS_H_INCLUDED_STRING_H\n' |
| 44 |
|
|
'#else /* !__sun */\n' |
| 45 |
|
|
+ body + |
| 46 |
|
|
'#endif /* !__sun */\n' |
| 47 |
|
|
) |
| 48 |
|
|
|
| 49 |
|
|
new_content = content[:body_start] + solaris_shortcut + content[idx_endif:] |
| 50 |
|
|
|
| 51 |
|
|
with open(path, 'w') as f: |
| 52 |
|
|
f.write(new_content) |
| 53 |
|
|
print("Xmfuncs.h patched OK") |
