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(set_file_variables): Define new automatic variable $+, like $^ but before

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calling uniquize_deps.
This commit is contained in:
Roland McGrath 1994-09-29 08:23:25 +00:00
parent 9807a2869f
commit e3d013a79a
1 changed files with 46 additions and 16 deletions
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62
commands.c
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@ -116,34 +116,64 @@ set_file_variables (file)
DEFINE_VARIABLE ("@", 1, at);
DEFINE_VARIABLE ("%", 1, percent);
/* Make sure that no dependencies are repeated. This does not
really matter for the purpose of updating targets, but it
might make some names be listed twice for $^ and $?. */
uniquize_deps (file->deps);
/* Compute the values for $^ and $?. */
/* Compute the values for $^, $+, and $?. */
{
register unsigned int caret_len, qmark_len;
char *caret_value;
register unsigned int qmark_len, plus_len;
char *caret_value, *plus_value;
register char *cp;
char *qmark_value;
register char *qp;
register struct dep *d;
unsigned int len;
caret_len = qmark_len = 0;
/* Compute first the value for $+, which is supposed to contain
duplicate dependencies as they were listed in the makefile. */
plus_len = 0;
for (d = file->deps; d != 0; d = d->next)
plus_len += strlen (dep_name (d)) + 1;
len = plus_len == 0 ? 1 : plus_len;
cp = plus_value = (char *) alloca (len);
qmark_len = plus_len; /* Will be this or less. */
for (d = file->deps; d != 0; d = d->next)
{
register unsigned int i = strlen (dep_name (d)) + 1;
caret_len += i;
if (d->changed)
qmark_len += i;
char *c = dep_name (d);
#ifndef NO_ARCHIVES
if (ar_name (c))
{
c = index (c, '(') + 1;
len = strlen (c) - 1;
}
else
#endif
len = strlen (c);
bcopy (c, cp, len);
cp += len;
*cp++ = ' ';
if (! d->changed)
qmark_len -= len + 1; /* Don't space in $? for this one. */
}
len = caret_len == 0 ? 1 : caret_len;
cp = caret_value = (char *) alloca (len);
/* Kill the last space and define the variable. */
cp[cp > plus_value ? -1 : 0] = '\0';
DEFINE_VARIABLE ("+", 1, plus_value);
/* Make sure that no dependencies are repeated. This does not
really matter for the purpose of updating targets, but it
might make some names be listed twice for $^ and $?. */
uniquize_deps (file->deps);
/* Compute the values for $^ and $?. */
cp = caret_value = plus_value; /* Reuse the buffer; it's big enough. */
len = qmark_len == 0 ? 1 : qmark_len;
qp = qmark_value = (char *) alloca (len);