Building PHP with bison versions up to 1.75 works fine, but both
bison 1.875 and 1.875a cause a segfault during the startup of PHP.
Backtrace:
Program received signal SIGSEGV, Segmentation fault.
0x081919b4 in ini_parse () at Zend/zend_ini_parser.c:1042
1042 YYSTACK_RELOCATE (yyss);
(gdb) bt
#0 0x081919b4 in ini_parse () at Zend/zend_ini_parser.c:1042
#1 0x08191831 in zend_parse_ini_file (fh=0xbffff430,
unbuffered_errors=1 '\001',
ini_parser_cb=0x816b336 <php_config_ini_parser_cb>, arg=0x8315a40)
at /usr/src/php5/Zend/zend_ini_parser.y:156
#2 0x0816bc64 in php_init_config () at /usr/src/php5/main/php_ini.c:420
#3 0x081670ee in php_module_startup (sf=0x82561c0, additional_modules=0x0,
num_additional_modules=0) at /usr/src/php5/main/main.c:1284
#4 0x081d10fe in main (argc=1, argv=0xbffff744)
at /usr/src/php5/sapi/cli/php_cli.c:589
#5 0x402419ed in __libc_start_main () from /lib/libc.so.6
The differences between the parsers generated by bison 1.75 and
bison 1.875a can be seen here
http://www.sebastian-bergmann.de/stuff/diff-zend_ini_parser.c
http://www.sebastian-bergmann.de/stuff/diff-zend_language_parser.c
I also brought this up on the bison mailinglist last night, maybe
some kind sould from there can help.
For the time beeing I think it would best to bail out on bison
versions greater than 1.75 in configure.
Greetings,
Sebastian
--
Sebastian Bergmann
http://sebastian-bergmann.de/ http://phpOpenTracker.de/
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