[p5sagit/p5-mst-13.2.git] / os2 / Changes

after 5.003_05:
	PERLLIB_PREFIX was not active if it matches an element of @INC
		as a whole.
	Do not need PERL_SBRK if crtdll-revision is >= 50.
	Use -Zsmall-conv if crtdll-revision is >= 50 (in static perl!).
:7: warning: #warning <dirent.h> requires <sys/types.h>
	We compile miniperl static. It cannot fork, thus there may be
		problems with pipes (since HAS_FORK is in
		place). Pipes are required by makemaker.
	We compile perl___.exe A.OUT and dynamic. It should be able to
		fork.
	If we can fork, we my_popen by popen unless "-|". Thus we
		write a cooky "-1" into the pid array to indicate
		this.
	Apparently we can fork, and we can load dynamic extensions
		now, though probably not simultaneously.
	*DB tests corrected for OS/2 one-user stat[2].
	/bin/sh is intercepted and replaced by SH_PATH.
	Note that having '\\' in the command line of one-arg `system'
		would trigger call via shell.
	Segfault with system {'ls'} 'blah'; corrected.
	Documentation of OS/2-different features added to main PODs.
	New buitins in Cwd::

		Cwd::current_drive
		Cwd::sys_chdir		- leaves drive as it is.
		Cwd::change_drive
		Cwd::sys_is_absolute	- has drive letter and is_rooted
		Cwd::sys_is_rooted	- has leading [/\\] (maybe
					  after a drive)
		Cwd::sys_is_relative	- changes with current dir
		Cwd::sys_cwd		- Interface to cwd from EMX.
		Cwd::sys_abspath(name, dir)	
					- Really really odious
					  function. Returns absolute
					  name of file which would 
					  have 'name' if CWD were 'dir'.
					Dir defaults to the current dir.
		Cwd::extLibpath [type]	- Get/set current value of extended
		Cwd::extLibpath_set	- library search path.
			path [type]
					The optional last argument redirects
					   to END-path if true,
					   default is to search BEGIN-path.
		(Note that some of these may be moved to different
		  libraries - eventually).
	Executables: 
		perl - can fork, can dynalink (but not simultaneously)
		perl_ - can fork, cannot dynalink
		perl__ - same as perl___, but PM.
		perl___ - cannot fork, can dynalink.
	The build of the first one - perl - is rather convoluted, and
	  requires a build of miniperl_.
after 5.003_05:
	PERLLIB_PREFIX was not active if it matches an element of @INC
		as a whole.
	Do not need PERL_SBRK if crtdll-revision is >= 50.
	Use -Zsmall-conv if crtdll-revision is >= 50 (in static perl!).
:7: warning: #warning <dirent.h> requires <sys/types.h>
	We compile miniperl static. It cannot fork, thus there may be
		problems with pipes (since HAS_FORK is in
		place). Pipes are required by makemaker.
	We compile perl___.exe A.OUT and dynamic. It should be able to
		fork.
	If we can fork, we my_popen by popen unless "-|". Thus we
		write a cooky "-1" into the pid array to indicate
		this.
	Apparently we can fork, and we can load dynamic extensions
		now, though probably not simultaneously.
	*DB tests corrected for OS/2 one-user stat[2].
	/bin/sh is intercepted and replaced by SH_PATH.
	Note that having '\\' in the command line of one-arg `system'
		would trigger call via shell.
	Segfault with system {'ls'} 'blah'; corrected.
	Documentation of OS/2-different features added to main PODs.
	New buitins in Cwd::

		Cwd::current_drive
		Cwd::sys_chdir		- leaves drive as it is.
		Cwd::change_drive
		Cwd::sys_is_absolute	- has drive letter and is_rooted
		Cwd::sys_is_rooted	- has leading [/\\] (maybe
					  after a drive)
		Cwd::sys_is_relative	- changes with current dir
		Cwd::sys_cwd		- Interface to cwd from EMX.
		Cwd::sys_abspath(name, dir)	
					- Really really odious
					  function. Returns absolute
					  name of file which would 
					  have 'name' if CWD were 'dir'.
					Dir defaults to the current dir.
		Cwd::extLibpath [type]	- Get/set current value of extended
		Cwd::extLibpath_set	- library search path.
			path [type]
					The optional last argument redirects
					   to END-path if true,
					   default is to search BEGIN-path.
		(Note that some of these may be moved to different
		  libraries - eventually).
	Executables: 
		perl - can fork, can dynalink (but not simultaneously)
		perl_ - can fork, cannot dynalink
		perl__ - same as perl___, but PM.
		perl___ - cannot fork, can dynalink.
	The build of the first one - perl - is rather convoluted, and
	  requires a build of miniperl_.

after 5.003_07:
	custom tmpfile and tmpname which may use $TMP, $TEMP.
	all the calls to OS/2 API wrapped so that it is safe to use
		them under DOS (may die(), though).
	Tested that popen works under DOS with modified PDKSH and RSX.
	File::Copy works under DOS.
	MakeMaker modified to work under DOS (perlmain.c.tmp and sh -c true).

after 5.003_08:
	OS2::PrfDB exports symbols as documented;
	should work on OS/2 2.1 again.
	uses reliable signals when spawing.
	do not use popen() any more - no intermediate shell unless needed.

after 5.003_11:
	Functions emx_{malloc,realloc,calloc,free} are exported from DLL.
	get_sysinfo() bugs corrected (flags were not used and wrongly defined).

after 5.003_20:
	_isterm is substituted instead of isatty, s?random instead of srand.
	`register' disabled if -DDEBUGGING and not AOUT build: stupid SD386.
	3-argument select() was stomping over memory.

after 5.003_21:
	Can start scripts by executing 'dir/script' and
	'script.sh'. Form without extension will call shell only if
	the specified file exists (will not look on path) (to prohibit
	trying to run shell commands directly). - Needed by magic.t.

after 5.003_27:
	ALTERNATE_SHEBANG="extproc " supported, thus options on this
	line are processed (possibly twice). -S is made legal on such
	a line. This -S -x is not needed any more.
	perl.dll may be used from non-EMX programs (via PERL_SYS_INIT
	- the caller should have valid variable "env" with
	environment). Known problems: $$ does not work - is 0, waitpid
	returns immediately, thus Perl cannot wait for completion of
	started programs.

after 5.004_01:
	flock emulation added (disable by setting env PERL_USE_FLOCK=0),
		thanks to Rocco Caputo;
	RSX bug with missing waitpid circomvented;
	-S bug with full path with \ corrected.

before 5.004_02:
	-S switch to perl enables a search with additional extensions 
	.cmd, .btm, .bat, .pl as well.  This means that if you have
	mycmd.pl or mycmd.bat on PATH, 
		perl -S mycmd
	will work.  Perl will also look in the current directory first.
	Moreover, a bug with \; in PATH being non-separator is fixed.

after 5.004_03:
	$^E tracks calls to CRT now.  (May break if Perl masks some
	changes to errno?)
	$0 may be edited to longer lengths (at least under OS/2).
	OS2::REXX->loads looks in the OS/2-ish fashion too.

after 5.004_04:
	Default perl.exe was built with a shorter stack than expected.
	Strip extensions DLLs too (unless debugging build).
	./os2.c being RO could stop cp.
	When starting scripts, Perl will find them on path (using the same
	  extensions as for -S command-line switch).  If it finds magic
	  `extproc ' or `#!' cookies, it will start the scripts directly.
	May use `cmd /c more <' as a pager.
	If a program could not be started, this might have been hidden.
	End of pipe was closed twice when `open'ing a pipeline.

after 5.004_53:
	Minimal thread support added.  One needs to manually move pthread.h

after 5.004_64:
	Make DLL names different if thread-enabled.
	Emit more informative internal DLL descriptions.
Commit	Line	Data
867988ae	1	after 5.003_05:
	2	PERLLIB_PREFIX was not active if it matches an element of @INC
	3	as a whole.
	4	Do not need PERL_SBRK if crtdll-revision is >= 50.
	5	Use -Zsmall-conv if crtdll-revision is >= 50 (in static perl!).
	6	:7: warning: #warning <dirent.h> requires <sys/types.h>
	7	We compile miniperl static. It cannot fork, thus there may be
	8	problems with pipes (since HAS_FORK is in
	9	place). Pipes are required by makemaker.
	10	We compile perl___.exe A.OUT and dynamic. It should be able to
	11	fork.
	12	If we can fork, we my_popen by popen unless "-\|". Thus we
	13	write a cooky "-1" into the pid array to indicate
	14	this.
	15	Apparently we can fork, and we can load dynamic extensions
	16	now, though probably not simultaneously.
	17	*DB tests corrected for OS/2 one-user stat[2].
	18	/bin/sh is intercepted and replaced by SH_PATH.
	19	Note that having '\\' in the command line of one-arg `system'
	20	would trigger call via shell.
	21	Segfault with system {'ls'} 'blah'; corrected.
	22	Documentation of OS/2-different features added to main PODs.
	23	New buitins in Cwd::
	24
	25	Cwd::current_drive
	26	Cwd::sys_chdir - leaves drive as it is.
	27	Cwd::change_drive
	28	Cwd::sys_is_absolute - has drive letter and is_rooted
	29	Cwd::sys_is_rooted - has leading [/\\] (maybe
	30	after a drive)
	31	Cwd::sys_is_relative - changes with current dir
	32	Cwd::sys_cwd - Interface to cwd from EMX.
	33	Cwd::sys_abspath(name, dir)
	34	- Really really odious
	35	function. Returns absolute
	36	name of file which would
	37	have 'name' if CWD were 'dir'.
	38	Dir defaults to the current dir.
	39	Cwd::extLibpath [type] - Get/set current value of extended
	40	Cwd::extLibpath_set - library search path.
	41	path [type]
	42	The optional last argument redirects
	43	to END-path if true,
	44	default is to search BEGIN-path.
	45	(Note that some of these may be moved to different
	46	libraries - eventually).
	47	Executables:
	48	perl - can fork, can dynalink (but not simultaneously)
	49	perl_ - can fork, cannot dynalink
	50	perl__ - same as perl___, but PM.
	51	perl___ - cannot fork, can dynalink.
	52	The build of the first one - perl - is rather convoluted, and
	53	requires a build of miniperl_.
	54	after 5.003_05:
	55	PERLLIB_PREFIX was not active if it matches an element of @INC
	56	as a whole.
	57	Do not need PERL_SBRK if crtdll-revision is >= 50.
	58	Use -Zsmall-conv if crtdll-revision is >= 50 (in static perl!).
	59	:7: warning: #warning <dirent.h> requires <sys/types.h>
	60	We compile miniperl static. It cannot fork, thus there may be
	61	problems with pipes (since HAS_FORK is in
	62	place). Pipes are required by makemaker.
	63	We compile perl___.exe A.OUT and dynamic. It should be able to
	64	fork.
65	If we can fork, we my_popen by popen unless "-\|". Thus we
66	write a cooky "-1" into the pid array to indicate
67	this.
68	Apparently we can fork, and we can load dynamic extensions
69	now, though probably not simultaneously.
70	*DB tests corrected for OS/2 one-user stat[2].
71	/bin/sh is intercepted and replaced by SH_PATH.
72	Note that having '\\' in the command line of one-arg `system'
73	would trigger call via shell.
74	Segfault with system {'ls'} 'blah'; corrected.
75	Documentation of OS/2-different features added to main PODs.
76	New buitins in Cwd::
77
78	Cwd::current_drive
79	Cwd::sys_chdir - leaves drive as it is.
80	Cwd::change_drive
81	Cwd::sys_is_absolute - has drive letter and is_rooted
82	Cwd::sys_is_rooted - has leading [/\\] (maybe
83	after a drive)
84	Cwd::sys_is_relative - changes with current dir
85	Cwd::sys_cwd - Interface to cwd from EMX.
86	Cwd::sys_abspath(name, dir)
87	- Really really odious
88	function. Returns absolute
89	name of file which would
90	have 'name' if CWD were 'dir'.
91	Dir defaults to the current dir.
92	Cwd::extLibpath [type] - Get/set current value of extended
93	Cwd::extLibpath_set - library search path.
94	path [type]
95	The optional last argument redirects
96	to END-path if true,
97	default is to search BEGIN-path.
98	(Note that some of these may be moved to different
99	libraries - eventually).
100	Executables:
101	perl - can fork, can dynalink (but not simultaneously)
102	perl_ - can fork, cannot dynalink
103	perl__ - same as perl___, but PM.
104	perl___ - cannot fork, can dynalink.
105	The build of the first one - perl - is rather convoluted, and
106	requires a build of miniperl_.
55497cff	107
	108	after 5.003_07:
	109	custom tmpfile and tmpname which may use $TMP, $TEMP.
	110	all the calls to OS/2 API wrapped so that it is safe to use
	111	them under DOS (may die(), though).
	112	Tested that popen works under DOS with modified PDKSH and RSX.
	113	File::Copy works under DOS.
	114	MakeMaker modified to work under DOS (perlmain.c.tmp and sh -c true).
72ea3524	115
	116	after 5.003_08:
	117	OS2::PrfDB exports symbols as documented;
	118	should work on OS/2 2.1 again.
	119	uses reliable signals when spawing.
	120	do not use popen() any more - no intermediate shell unless needed.
df3ef7a9	121
	122	after 5.003_11:
	123	Functions emx_{malloc,realloc,calloc,free} are exported from DLL.
	124	get_sysinfo() bugs corrected (flags were not used and wrongly defined).
44a8e56a	125
	126	after 5.003_20:
	127	_isterm is substituted instead of isatty, s?random instead of srand.
	128	`register' disabled if -DDEBUGGING and not AOUT build: stupid SD386.
	129	3-argument select() was stomping over memory.
e29f6e02	130
	131	after 5.003_21:
	132	Can start scripts by executing 'dir/script' and
	133	'script.sh'. Form without extension will call shell only if
	134	the specified file exists (will not look on path) (to prohibit
	135	trying to run shell commands directly). - Needed by magic.t.
aa689395	136
	137	after 5.003_27:
	138	ALTERNATE_SHEBANG="extproc " supported, thus options on this
	139	line are processed (possibly twice). -S is made legal on such
	140	a line. This -S -x is not needed any more.
	141	perl.dll may be used from non-EMX programs (via PERL_SYS_INIT
	142	- the caller should have valid variable "env" with
	143	environment). Known problems: $$ does not work - is 0, waitpid
	144	returns immediately, thus Perl cannot wait for completion of
	145	started programs.
d8c2d278	146
367f3c24	147	after 5.004_01:
	148	flock emulation added (disable by setting env PERL_USE_FLOCK=0),
	149	thanks to Rocco Caputo;
	150	RSX bug with missing waitpid circomvented;
	151	-S bug with full path with \ corrected.
	152
d8c2d278	153	before 5.004_02:
	154	-S switch to perl enables a search with additional extensions
	155	.cmd, .btm, .bat, .pl as well. This means that if you have
	156	mycmd.pl or mycmd.bat on PATH,
	157	perl -S mycmd
	158	will work. Perl will also look in the current directory first.
	159	Moreover, a bug with \; in PATH being non-separator is fixed.
84902520	160
fb73857a	161	after 5.004_03:
	162	$^E tracks calls to CRT now. (May break if Perl masks some
	163	changes to errno?)
	164	$0 may be edited to longer lengths (at least under OS/2).
	165	OS2::REXX->loads looks in the OS/2-ish fashion too.
dd96f567	166
91643db9	167	after 5.004_04:
	168	Default perl.exe was built with a shorter stack than expected.
	169	Strip extensions DLLs too (unless debugging build).
	170	./os2.c being RO could stop cp.
	171	When starting scripts, Perl will find them on path (using the same
	172	extensions as for -S command-line switch). If it finds magic
	173	`extproc ' or `#!' cookies, it will start the scripts directly.
	174	May use `cmd /c more <' as a pager.
	175	If a program could not be started, this might have been hidden.
	176	End of pipe was closed twice when `open'ing a pipeline.
	177
dd96f567	178	after 5.004_53:
dd96f567	179	Minimal thread support added. One needs to manually move pthread.h
3aefca04	180
	181	after 5.004_64:
	182	Make DLL names different if thread-enabled.
	183	Emit more informative internal DLL descriptions.