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diff --git a/soltools/mkdepend/mkdepend.man b/soltools/mkdepend/mkdepend.man new file mode 100644 index 000000000000..9c3cdccd988c --- /dev/null +++ b/soltools/mkdepend/mkdepend.man @@ -0,0 +1,368 @@ +.\" $XConsortium: mkdepend.man,v 1.15 94/04/17 20:10:37 gildea Exp $ +.\" Copyright (c) 1993, 1994 X Consortium +.\" +.\" Permission is hereby granted, free of charge, to any person obtaining a +.\" copy of this software and associated documentation files (the "Software"), +.\" to deal in the Software without restriction, including without limitation +.\" the rights to use, copy, modify, merge, publish, distribute, sublicense, +.\" and/or sell copies of the Software, and to permit persons to whom the +.\" Software furnished to do so, subject to the following conditions: +.\" +.\" The above copyright notice and this permission notice shall be included in +.\" all copies or substantial portions of the Software. +.\" +.\" THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +.\" IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +.\" FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL +.\" THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, +.\" WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF +.\" OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +.\" SOFTWARE. +.\" +.\" Except as contained in this notice, the name of the X Consortium shall not +.\" be used in advertising or otherwise to promote the sale, use or other +.\" dealing in this Software without prior written authorization from the +.\" X Consortium. +.TH MAKEDEPEND 1 "Release 6" "X Version 11" +.UC 4 +.SH NAME +makedepend \- create dependencies in makefiles +.SH SYNOPSIS +.B makedepend +[ +.B \-Dname=def +] [ +.B \-Dname +] [ +.B \-Iincludedir +] [ +.B \-Yincludedir +] [ +.B \-a +] [ +.B \-fmakefile +] [ +.B \-oobjsuffix +] [ +.B \-pobjprefix +] [ +.B \-sstring +] [ +.B \-wwidth +] [ +.B \-v +] [ +.B \-m +] [ +\-\^\- +.B otheroptions +\-\^\- +] +sourcefile .\|.\|. +.br +.SH DESCRIPTION +.B Makedepend +reads each +.I sourcefile +in sequence and parses it like a C-preprocessor, +processing all +.I #include, +.I #define, +.I #undef, +.I #ifdef, +.I #ifndef, +.I #endif, +.I #if +and +.I #else +directives so that it can correctly tell which +.I #include, +directives would be used in a compilation. +Any +.I #include, +directives can reference files having other +.I #include +directives, and parsing will occur in these files as well. +.PP +Every file that a +.I sourcefile +includes, +directly or indirectly, +is what +.B makedepend +calls a "dependency". +These dependencies are then written to a +.I makefile +in such a way that +.B make(1) +will know which object files must be recompiled when a dependency has changed. +.PP +By default, +.B makedepend +places its output in the file named +.I makefile +if it exists, otherwise +.I Makefile. +An alternate makefile may be specified with the +.B \-f +option. +It first searches the makefile for +the line +.sp + # DO NOT DELETE THIS LINE \-\^\- make depend depends on it. +.sp +or one provided with the +.B \-s +option, +as a delimiter for the dependency output. +If it finds it, it will delete everything +following this to the end of the makefile +and put the output after this line. +If it doesn't find it, the program +will append the string to the end of the makefile +and place the output following that. +For each +.I sourcefile +appearing on the command line, +.B makedepend +puts lines in the makefile of the form +.sp + sourcefile.o:\0dfile .\|.\|. +.sp +Where "sourcefile.o" is the name from the command +line with its suffix replaced with ".o", +and "dfile" is a dependency discovered in a +.I #include +directive while parsing +.I sourcefile +or one of the files it included. +.SH EXAMPLE +Normally, +.B makedepend +will be used in a makefile target so that typing "make depend" will +bring the dependencies up to date for the makefile. +For example, +.nf + SRCS\0=\0file1.c\0file2.c\0.\|.\|. + CFLAGS\0=\0\-O\0\-DHACK\0\-I\^.\^.\^/foobar\0\-xyz + depend: + makedepend\0\-\^\-\0$(CFLAGS)\0\-\^\-\0$(SRCS) +.fi +.SH OPTIONS +.B Makedepend +will ignore any option that it does not understand so that you may use +the same arguments that you would for +.B cc(1). +.TP 5 +.B \-Dname=def or \-Dname +Define. +This places a definition for +.I name +in +.B makedepend's +symbol table. +Without +.I =def +the symbol becomes defined as "1". +.TP 5 +.B \-Iincludedir +Include directory. +This option tells +.B makedepend +to prepend +.I includedir +to its list of directories to search when it encounters +a +.I #include +directive. +By default, +.B makedepend +only searches the standard include directories (usually /usr/include +and possibly a compiler-dependent directory). +.TP 5 +.B \-Yincludedir +Replace all of the standard include directories with the single specified +include directory; you can omit the +.I includedir +to simply prevent searching the standard include directories. +.TP 5 +.B \-a +Append the dependencies to the end of the file instead of replacing them. +.TP 5 +.B \-fmakefile +Filename. +This allows you to specify an alternate makefile in which +.B makedepend +can place its output. +.TP 5 +.B \-oobjsuffix +Object file suffix. +Some systems may have object files whose suffix is something other +than ".o". +This option allows you to specify another suffix, such as +".b" with +.I -o.b +or ":obj" +with +.I -o:obj +and so forth. +.TP 5 +.B \-pobjprefix +Object file prefix. +The prefix is prepended to the name of the object file. This is +usually used to designate a different directory for the object file. +The default is the empty string. +.TP 5 +.B \-sstring +Starting string delimiter. +This option permits you to specify +a different string for +.B makedepend +to look for in the makefile. +.TP 5 +.B \-wwidth +Line width. +Normally, +.B makedepend +will ensure that every output line that it writes will be no wider than +78 characters for the sake of readability. +This option enables you to change this width. +.TP 5 +.B \-v +Verbose operation. +This option causes +.B makedepend +to emit the list of files included by each input file on standard output. +.TP 5 +.B \-m +Warn about multiple inclusion. +This option causes +.B makedepend +to produce a warning if any input file includes another file more than +once. In previous versions of +.B makedepend +this was the default behavior; the default has been changed to better +match the behavior of the C compiler, which does not consider multiple +inclusion to be an error. This option is provided for backward +compatibility, and to aid in debugging problems related to multiple +inclusion. +.TP 5 +.B "\-\^\- options \-\^\-" +If +.B makedepend +encounters a double hyphen (\-\^\-) in the argument list, +then any unrecognized argument following it +will be silently ignored; a second double hyphen terminates this +special treatment. +In this way, +.B makedepend +can be made to safely ignore esoteric compiler arguments that might +normally be found in a CFLAGS +.B make +macro (see the +.B EXAMPLE +section above). +All options that +.B makedepend +recognizes and appear between the pair of double hyphens +are processed normally. +.SH ALGORITHM +The approach used in this program enables it to run an order of magnitude +faster than any other "dependency generator" I have ever seen. +Central to this performance are two assumptions: +that all files compiled by a single +makefile will be compiled with roughly the same +.I -I +and +.I -D +options; +and that most files in a single directory will include largely the +same files. +.PP +Given these assumptions, +.B makedepend +expects to be called once for each makefile, with +all source files that are maintained by the +makefile appearing on the command line. +It parses each source and include +file exactly once, maintaining an internal symbol table +for each. +Thus, the first file on the command line will take an amount of time +proportional to the amount of time that a normal C preprocessor takes. +But on subsequent files, if it encounter's an include file +that it has already parsed, it does not parse it again. +.PP +For example, +imagine you are compiling two files, +.I file1.c +and +.I file2.c, +they each include the header file +.I header.h, +and the file +.I header.h +in turn includes the files +.I def1.h +and +.I def2.h. +When you run the command +.sp + makedepend\0file1.c\0file2.c +.sp +.B makedepend +will parse +.I file1.c +and consequently, +.I header.h +and then +.I def1.h +and +.I def2.h. +It then decides that the dependencies for this file are +.sp + file1.o:\0header.h\0def1.h\0def2.h +.sp +But when the program parses +.I file2.c +and discovers that it, too, includes +.I header.h, +it does not parse the file, +but simply adds +.I header.h, +.I def1.h +and +.I def2.h +to the list of dependencies for +.I file2.o. +.SH "SEE ALSO" +cc(1), make(1) +.SH BUGS +.B makedepend +parses, but does not currently evaluate, the SVR4 +#predicate(token-list) preprocessor expression; +such expressions are simply assumed to be true. +This may cause the wrong +.I #include +directives to be evaluated. +.PP +Imagine you are parsing two files, +say +.I file1.c +and +.I file2.c, +each includes the file +.I def.h. +The list of files that +.I def.h +includes might truly be different when +.I def.h +is included by +.I file1.c +than when it is included by +.I file2.c. +But once +.B makedepend +arrives at a list of dependencies for a file, +it is cast in concrete. +.SH AUTHOR +Todd Brunhoff, Tektronix, Inc. and MIT Project Athena |