X-Git-Url: http://git.shadowcat.co.uk/gitweb/gitweb.cgi?a=blobdiff_plain;f=Porting%2FGlossary;h=71d97f8ea97d7e15ac06a47495285c82153f163f;hb=5bc457ce78ccec3d76158b92af16e3fadd82c224;hp=995f7f9a95c68ea7ec9ea45366f3e24267d6a441;hpb=3a096bf351e068ac899b4c940544630c7ab75de2;p=p5sagit%2Fp5-mst-13.2.git diff --git a/Porting/Glossary b/Porting/Glossary index 995f7f9..71d97f8 100644 --- a/Porting/Glossary +++ b/Porting/Glossary @@ -26,7 +26,8 @@ afs (afs.U): alignbytes (alignbytes.U): This variable holds the number of bytes required to align a - double. Usual values are 2, 4 and 8. + double-- or a long double when applicable. Usual values are + 2, 4 and 8. The default is eight, for safety. ansi2knr (ansi2knr.U): This variable is set if the user needs to run ansi2knr. @@ -193,8 +194,6 @@ ccflags (ccflags.U): ccsymbols (Cppsym.U): The variable contains the symbols defined by the C compiler alone. - The symbols defined by cpp or by cc when it calls cpp are not in - this list, see cppsymbols and cppccsymbols. The list is a space-separated list of symbol=value tokens. cf_by (cf_who.U): @@ -268,9 +267,9 @@ cpp_stuff (cpp_stuff.U): used by the C preprocessor. cppccsymbols (Cppsym.U): - The variable contains the symbols defined by the C compiler - when it calls cpp. The symbols defined by the cc alone or cpp - alone are not in this list, see ccsymbols and cppsymbols. + The variable contains the symbols defined by both + the bare C compiler and during a compilation that + includes stdio.h. The list is a space-separated list of symbol=value tokens. cppflags (ccflags.U): @@ -302,9 +301,8 @@ cppstdin (cppstdin.U): preprocessor symbols. cppsymbols (Cppsym.U): - The variable contains the symbols defined by the C preprocessor - alone. The symbols defined by cc or by cc when it calls cpp are - not in this list, see ccsymbols and cppccsymbols. + The variable contains the symbols during a compilation + that includes stdio.h. The list is a space-separated list of symbol=value tokens. crosscompile (crosscompile.U): @@ -568,7 +566,7 @@ d_fpathconf (d_pathconf.U): to determine file-system related limits and options associated with a given open file descriptor. -d_fpos64_t (io64.U): +d_fpos64_t (d_fpos64_t.U): This symbol will be defined if the C compiler supports fpos64_t. d_fs_data_s (d_fs_data_s.U): @@ -609,6 +607,15 @@ d_Gconvert (d_gconvert.U): d_Gconvert='gcvt((x),(n),(b))' d_Gconvert='sprintf((b),"%.*g",(n),(x))' +d_getcwd (d_getcwd.U): + This variable conditionally defines the HAS_GETCWD symbol, which + indicates to the C program that the getcwd() routine is available + to get the current working directory. + +d_getfsstat (d_getfsstat.U): + This variable conditionally defines the HAS_GETFSSTAT symbol, which + indicates to the C program that the getfsstat() routine is available. + d_getgrent (d_getgrent.U): This variable conditionally defines the HAS_GETGRENT symbol, which indicates to the C program that the getgrent() routine is available @@ -780,6 +787,10 @@ d_htonl (d_htonl.U): This variable conditionally defines HAS_HTONL if htonl() and its friends are available to do network order byte swapping. +d_iconv (d_iconv.U): + This variable conditionally defines the HAS_ICONV symbol, which + indicates to the C program that the iconv() routine is available. + d_index (d_strchr.U): This variable conditionally defines HAS_INDEX if index() and rindex() are available for string searching. @@ -789,7 +800,7 @@ d_inetaton (d_inetaton.U): indicates to the C program that the inet_aton() function is available to parse IP address "dotted-quad" strings. -d_int64t (d_int64t.U): +d_int64_t (d_int64_t.U): This symbol will be defined if the C compiler supports int64_t. d_isascii (d_isascii.U): @@ -831,6 +842,12 @@ d_longlong (d_longlong.U): This variable conditionally defines HAS_LONG_LONG if the long long type is supported. +d_lseekproto (d_lseekproto.U): + This variable conditionally defines the HAS_LSEEK_PROTO symbol, + which indicates to the C program that the system provides + a prototype for the lseek() function. Otherwise, it is + up to the program to supply one. + d_lstat (d_lstat.U): This variable conditionally defines HAS_LSTAT if lstat() is available to do file stats on symbolic links. @@ -880,14 +897,38 @@ d_mkdir (d_mkdir.U): indicates to the C program that the mkdir() routine is available to create directories.. +d_mkdtemp (d_mkdtemp.U): + This variable conditionally defines the HAS_MKDTEMP symbol, which + indicates to the C program that the mkdtemp() routine is available + to exclusively create a uniquely named temporary directory. + d_mkfifo (d_mkfifo.U): This variable conditionally defines the HAS_MKFIFO symbol, which indicates to the C program that the mkfifo() routine is available. +d_mkstemp (d_mkstemp.U): + This variable conditionally defines the HAS_MKSTEMP symbol, which + indicates to the C program that the mkstemp() routine is available + to exclusively create and open a uniquely named temporary file. + +d_mkstemps (d_mkstemps.U): + This variable conditionally defines the HAS_MKSTEMPS symbol, which + indicates to the C program that the mkstemps() routine is available + to exclusively create and open a uniquely named (with a suffix) + temporary file. + d_mktime (d_mktime.U): This variable conditionally defines the HAS_MKTIME symbol, which indicates to the C program that the mktime() routine is available. +d_mmap (d_mmap.U): + This variable conditionally defines HAS_MMAP if mmap() is + available to map a file into memory. + +d_mprotect (d_mprotect.U): + This variable conditionally defines HAS_MPROTECT if mprotect() is + available to modify the access protection of a memory mapped file. + d_msg (d_msg.U): This variable conditionally defines the HAS_MSG symbol, which indicates that the entire msg*(2) library is present. @@ -933,6 +974,14 @@ d_msgsnd (d_msgsnd.U): This variable conditionally defines the HAS_MSGSND symbol, which indicates to the C program that the msgsnd() routine is available. +d_msync (d_msync.U): + This variable conditionally defines HAS_MSYNC if msync() is + available to synchronize a mapped file. + +d_munmap (d_munmap.U): + This variable conditionally defines HAS_MUNMAP if munmap() is + available to unmap a region mapped by mmap(). + d_mymalloc (mallocsrc.U): This variable conditionally defines MYMALLOC in case other parts of the source want to take special action if MYMALLOC is used. @@ -942,11 +991,11 @@ d_nice (d_nice.U): This variable conditionally defines the HAS_NICE symbol, which indicates to the C program that the nice() routine is available. -d_nvpresuv (perlxv.U): +d_nv_preserves_uv (perlxv.U): This variable indicates whether a variable of type nvtype can preserve all the bits a variable of type uvtype. -d_off64_t (io64.U): +d_off64_t (d_off64_t.U): This symbol will be defined if the C compiler supports off64_t. d_old_pthread_create_joinable (d_pthrattrj.U): @@ -1320,6 +1369,9 @@ d_socket (d_socket.U): This variable conditionally defines HAS_SOCKET, which indicates that the BSD socket interface is supported. +d_socklen_t (d_socklen_t.U): + This symbol will be defined if the C compiler supports socklen_t. + d_sockpair (d_socket.U): This variable conditionally defines the HAS_SOCKETPAIR symbol, which indicates that the BSD socketpair() is supported. @@ -1862,6 +1914,10 @@ i_grp (i_grp.U): This variable conditionally defines the I_GRP symbol, and indicates whether a C program should include . +i_iconv (i_iconv.U): + This variable conditionally defines the I_ICONV symbol, and indicates + whether a C program should include . + i_inttypes (i_inttypes.U): This variable conditionally defines the I_INTTYPES symbol, and indicates whether a C program should include . @@ -1998,6 +2054,18 @@ i_sysioctl (i_sysioctl.U): indicates to the C program that exists and should be included. +i_syslog (i_syslog.U): + This variable conditionally defines the I_SYSLOG symbol, + and indicates whether a C program should include . + +i_sysmman (i_sysmman.U): + This variable conditionally defines the I_SYS_MMAN symbol, and + indicates whether a C program should include . + +i_sysmode (i_sysmode.U): + This variable conditionally defines the I_SYSMODE symbol, + and indicates whether a C program should include . + i_sysmount (i_sysmount.U): This variable conditionally defines the I_SYSMOUNT symbol, and indicates whether a C program should include . @@ -2066,6 +2134,10 @@ i_sysun (i_sysun.U): to the C program that it should include to get UNIX domain socket definitions. +i_sysutsname (i_sysutsname.U): + This variable conditionally defines the I_SYSUTSNAME symbol, + and indicates whether a C program should include . + i_sysvfs (i_sysvfs.U): This variable conditionally defines the I_SYSVFS symbol, and indicates whether a C program should include . @@ -2313,6 +2385,21 @@ libs (libs.U): This variable holds the additional libraries we want to use. It is up to the Makefile to deal with it. +libsdirs (libs.U): + This variable holds the directory names aka dirnames of the libraries + we found and accepted, duplicates are removed. + +libsfiles (libs.U): + This variable holds the filenames aka basenames of the libraries + we found and accepted. + +libsfound (libs.U): + This variable holds the full pathnames of the libraries + we found and accepted. + +libspath (libs.U): + This variable holds the directory names probed for libraries. + libswanted (Myinit.U): This variable holds a list of all the libraries we want to search. The order is chosen to pick up the c library @@ -2478,6 +2565,11 @@ mkdir (Loc.U): full pathname (if any) of the mkdir program. After Configure runs, the value is reset to a plain "mkdir" and is not useful. +mmaptype (d_mmap.U): + This symbol contains the type of pointer returned by mmap() + (and simultaneously the type of the first argument). + It can be 'void *' or 'caddr_t'. + models (models.U): This variable contains the list of memory models supported by this system. Possible component values are none, split, unsplit, small, @@ -2640,16 +2732,20 @@ patchlevel (patchlevel.U): The patchlevel level of this package. The value of patchlevel comes from the patchlevel.h file. In a version number such as 5.6.1, this is the "6". - In patchlevel.h, this is referred to as the "PERL_VERSION". + In patchlevel.h, this is referred to as "PERL_VERSION". path_sep (Unix.U): This is an old synonym for p_ in Head.U, the character used to separate elements in the command shell search PATH. +perl5 (perl5.U): + This variable contains the full path (if any) to a previously + installed perl5.005 or later suitable for running the script + to determine inc_version_list. + perl (Loc.U): - This variable is used internally by Configure to determine the - full pathname (if any) of the perl program. After Configure runs, - the value is reset to a plain "perl" and is not useful. + This variable is defined but not used by Configure. + The value is a plain '' and is not useful. PERL_REVISION (Oldsyms.U): In a Perl version number such as 5.6.2, this is the 5. @@ -2693,6 +2789,21 @@ plibpth (libpth.U): Its value is prepend to libpth. This variable takes care of special machines, like the mips. Usually, it should be empty. +pm_apiversion (xs_apiversion.U): + This variable contains the version of the oldest perl + compatible with the present perl. (That is, pure perl modules + written for $pm_apiversion will still work for the current + version). perl.c:incpush() and lib/lib.pm will automatically + search in $sitelib for older directories across major versions + back to pm_apiversion. This is only useful if you have a perl + library directory tree structured like the default one. The + versioned site_perl library was introduced in 5.005, so that's + the default setting for this variable. It's hard to imagine + it changing before Perl6. It is included here for symmetry + with xs_apiveprsion -- the searching algorithms will + (presumably) be similar. + See the INSTALL file for how this works. + pmake (Loc.U): This variable is defined but not used by Configure. The value is a plain '' and is not useful. @@ -2762,6 +2873,11 @@ rd_nodata (nblock_io.U): used, which is a shame because you cannot make the difference between no data and an EOF.. Sigh! +revision (patchlevel.U): + The value of revision comes from the patchlevel.h file. + In a version number such as 5.6.1, this is the "5". + In patchlevel.h, this is referred to as "PERL_REVISION". + rm (Loc.U): This variable is used internally by Configure to determine the full pathname (if any) of the rm program. After Configure runs, @@ -2977,6 +3093,11 @@ sockethdr (d_socket.U): socketlib (d_socket.U): This variable has the names of any libraries needed for socket support. +socksizetype (socksizetype.U): + This variable holds the type used for the size argument + for various socket calls like accept. Usual values include + socklen_t, size_t, and int. + sort (Loc.U): This variable is used internally by Configure to determine the full pathname (if any) of the sort program. After Configure runs, @@ -3121,6 +3242,7 @@ subversion (patchlevel.U): The subversion level of this package. The value of subversion comes from the patchlevel.h file. In a version number such as 5.6.1, this is the "1". + In patchlevel.h, this is referred to as "PERL_SUBVERSION". This is unique to perl. sysman (sysman.U): @@ -3236,10 +3358,23 @@ use5005threads (usethreads.U): and indicates that Perl should be built to use the 5.005-based threading implementation. -use64bits (use64bits.U): - This variable conditionally defines the USE_64_BITS symbol, +use64bitall (use64bits.U): + This variable conditionally defines the USE_64_BIT_ALL symbol, and indicates that 64-bit integer types should be used - when available. + when available. The maximal possible + 64-bitness is employed: LP64 or ILP64, meaning that you will + be able to use more than 2 gigabytes of memory. This mode is + even more binary incompatible than USE_64_BIT_INT. You may not + be able to run the resulting executable in a 32-bit CPU at all or + you may need at least to reboot your OS to 64-bit mode. + +use64bitint (use64bits.U): + This variable conditionally defines the USE_64_BIT_INT symbol, + and indicates that 64-bit integer types should be used + when available. The minimal possible 64-bitness + is employed, just enough to get 64-bit integers into Perl. + This may mean using for example "long longs", while your memory + may still be limited to 2 gigabytes. usedl (dlsrc.U): This variable indicates if the system supports dynamic @@ -3253,16 +3388,12 @@ useithreads (usethreads.U): uselargefiles (uselfs.U): This variable conditionally defines the USE_LARGE_FILES symbol, and indicates that large file interfaces should be used when - available. The use64bits symbol will also be turned on if necessary. + available. uselongdouble (uselongdbl.U): This variable conditionally defines the USE_LONG_DOUBLE symbol, and indicates that long doubles should be used when available. -uselonglong (uselonglong.U): - This variable conditionally defines the USE_LONG_LONG symbol, - and indicates that long longs should be used when available. - usemorebits (usemorebits.U): This variable conditionally defines the USE_MORE_BITS symbol, and indicates that explicit 64-bit interfaces and long doubles @@ -3393,7 +3524,7 @@ vendorprefixexp (vendorprefix.U): version (patchlevel.U): The full version number of this package, such as 5.6.1 (or 5_6_1). - This combines baserev, patchlevel, and subversion to get the + This combines revision, patchlevel, and subversion to get the full version number, including any possible subversions. This is suitable for use as a directory name, and hence is filesystem dependent. @@ -3412,6 +3543,23 @@ xlibpth (libpth.U): libraries on this platform, for example CPU-specific libraries (on multi-CPU platforms) may be listed here. +xs_apiversion (xs_apiversion.U): + This variable contains the version of the oldest perl binary + compatible with the present perl. perl.c:incpush() and + lib/lib.pm will automatically search in $sitearch for older + directories across major versions back to xs_apiversion. + This is only useful if you have a perl library directory tree + structured like the default one. + See INSTALL for how this works. + The versioned site_perl directory was introduced in 5.005, + so that is the lowest possible value. + Since this can depend on compile time options (such as + bincompat) it is set by Configure. Other non-default sources + of potential incompatibility, such as multiplicity, threads, + debugging, 64bits, sfio, etc., are not checked for currently, + though in principle we could go snooping around in old + Config.pm files. + zcat (Loc.U): This variable is defined but not used by Configure. The value is a plain '' and is not useful.