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Diff for /src/usr.bin/make/make.1 between version 1.5 and 1.6

version 1.5, 1994/02/10 18:25:01 version 1.6, 1994/03/05 00:34:56
Line 75  and makefiles, please refer to
Line 75  and makefiles, please refer to
 The options are as follows:  The options are as follows:
 .Bl -tag -width Ds  .Bl -tag -width Ds
 .It Fl D Ar variable  .It Fl D Ar variable
 Define  Define Ar variable
 .Ar variable  
 to be 1, in the global context.  to be 1, in the global context.
 .It Fl d Ar flags  .It Fl d Ar flags
 Turn on debugging, and specify which portions of  Turn on debugging, and specify which portions of
Line 164  to
Line 163  to
 .Ar value .  .Ar value .
 .El  .El
 .Pp  .Pp
 There are six different types of lines in a makefile: file dependency  There are seven different types of lines in a makefile: file dependency
 specifications, shell commands, variable assignments, include statements,  specifications, shell commands, variable assignments, include statements,
 conditional directives, and comments.  conditional directives, for loops, and comments.
 .Pp  .Pp
 In general, lines may be continued from one line to the next by ending  In general, lines may be continued from one line to the next by ending
 them with a backslash  them with a backslash
Line 488  This is the
Line 487  This is the
 .At V  .At V
 style variable substitution.  style variable substitution.
 It must be the last modifier specified.  It must be the last modifier specified.
 .Ar Old_string  If
 is anchored at the end of each word, so only suffixes or entire  .Ar old_string
 words may be replaced.  or
 .El  .Ar new_string
 .Sh INCLUDE STATEMENTS AND CONDITIONALS  do not contain the pattern matching character
 Makefile inclusion and conditional structures reminiscent of the C  .Ar %
 programming language are provided in  then it is assumed that they are
   anchored at the end of each word, so only suffixes or entire
   words may be replaced. Otherwise
   .Ar %
   is the substring of
   .Ar old_string
   to be replaced in
   .Ar new_string
   .El
   .Sh INCLUDE STATEMENTS, CONDITIONALS AND FOR LOOPS
   Makefile inclusion, conditional structures and for loops  reminiscent
   of the C programming language are provided in
 .Nm make .  .Nm make .
 All such structures are identified by a line beginning with a single  All such structures are identified by a line beginning with a single
 dot  dot
Line 655  has been defined.
Line 665  has been defined.
 .El  .El
 .Pp  .Pp
 .Ar Expression  .Ar Expression
 may also be an arithmetic or string comparison, with the left-hand side  may also be an arithmetic or string comparison.  Variable expansion is
 being a variable expansion.  performed on both sides of the comparison, after which the integral
 The standard C relational operators are all supported, and the usual  values are compared.  A value is interpreted as hexadecimal if it is
 number/base conversion is performed.  preceded by 0x, otherwise it is decimal; octal numbers are not supported.
 Note, octal numbers are not supported.  The standard C relational operators are all supported.  If after
 If the righthand value of a  variable expansion, either the left or right hand side of a
 .Ql Ic ==  .Ql Ic ==
 or  or
 .Ql Ic "!="  .Ql Ic "!="
 operator begins with a  operator is not an integral value, then
 quotation mark  string comparison is performed between the expanded
 .Pq Ql \*q  variables.
 a string comparison is done between the expanded  
 variable and the text between the quotation marks.  
 If no relational operator is given, it is assumed that the expanded  If no relational operator is given, it is assumed that the expanded
 variable is being compared against 0.  variable is being compared against 0.
 .Pp  .Pp
Line 697  In both cases this continues until a
Line 705  In both cases this continues until a
 or  or
 .Ql Ic .endif  .Ql Ic .endif
 is found.  is found.
   .Pp
   For loops are typically used to apply a set of rules to a list of files.
   The syntax of a for loop is:
   .Bl -tag -width Ds
   .It Xo
   .Ic \&.for
   .Ar variable
   .Ic in
   .Ar expression
   .Xc
   .It Xo
   <make-rules>
   .Xc
   .It Xo
   .Ic \&.endfor
   .Xc
   .El
   After the for
   .Ic expression
   is evaluated, it is split into words. The
   iteration
   .Ic variable
   is successively set to each word, and substituted in the
   .Ic make-rules
   inside the body of the for loop.
 .Sh COMMENTS  .Sh COMMENTS
 Comments begin with a hash  Comments begin with a hash
 .Pq Ql \&#  .Pq Ql \&#

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Removed from v.1.5  
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  Added in v.1.6

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