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Atari Mega Archive 1
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pdmake.arc
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CHECK.C
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1986-12-15
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/***************************************************************\
* *
* PDMAKE, Atari ST version *
* *
* Adapted from mod.sources Vol 7 Issue 71, 1986-12-03. *
* *
* This port makes extensive use of the original net.sources *
* port by Jwahar Bammi. *
* *
* Ton van Overbeek *
* Email: TPC862@ESTEC.BITNET *
* TPC862%ESTEC.BITNET@WISCVM.WISC.EDU (ARPA) *
* ...!mcvax!tpc862%estec.bitnet (UUCP Europe) *
* ...!ucbvax!tpc862%estec.bitnet (UUCP U.S.A.) *
* 71450,3537 (CompuServe) *
* *
\***************************************************************/
/*
* Check structures for make.
*/
#include <stdio.h>
#include "h.h"
/*
* Prints out the structures as defined in memory. Good for check
* that you make file does what you want (and for debugging make).
*/
void
prt()
{
register struct name * np;
register struct depend * dp;
register struct line * lp;
register struct cmd * cp;
register struct macro * mp;
for (mp = macrohead; mp; mp = mp->m_next)
fprintf(stderr, "%s = %s\n", mp->m_name, mp->m_val);
fputc('\n', stderr);
for (np = namehead.n_next; np; np = np->n_next)
{
if (np->n_flag & N_DOUBLE)
fprintf(stderr, "%s::\n", np->n_name);
else
fprintf(stderr, "%s:\n", np->n_name);
if (np == firstname)
fprintf(stderr, "(MAIN NAME)\n");
for (lp = np->n_line; lp; lp = lp->l_next)
{
fputc(':', stderr);
for (dp = lp->l_dep; dp; dp = dp->d_next)
fprintf(stderr, " %s", dp->d_name->n_name);
fputc('\n', stderr);
for (cp = lp->l_cmd; cp; cp = cp->c_next)
#ifdef os9
fprintf(stderr, "- %s\n", cp->c_cmd);
#else
fprintf(stderr, "-\t%s\n", cp->c_cmd);
#endif
fputc('\n', stderr);
}
fputc('\n', stderr);
}
}
/*
* Recursive routine that does the actual checking.
*/
void
check(np)
struct name * np;
{
register struct depend * dp;
register struct line * lp;
if (np->n_flag & N_MARK)
fatal("Circular dependency from %s", np->n_name);
np->n_flag |= N_MARK;
for (lp = np->n_line; lp; lp = lp->l_next)
for (dp = lp->l_dep; dp; dp = dp->d_next)
check(dp->d_name);
np->n_flag &= ~N_MARK;
}
/*
* Look for circular dependencies.
* i.e.
* a: b
* b: a
* is a circular dependency.
*/
void
circh()
{
register struct name * np;
for (np = namehead.n_next; np; np = np->n_next)
check(np);
}
/*
* Check the target .PRECIOUS, and mark its dependents as precious
*/
void
precious()
{
register struct depend * dp;
register struct line * lp;
register struct name * np;
if (!((np = newname(".PRECIOUS"))->n_flag & N_TARG))
return;
for (lp = np->n_line; lp; lp = lp->l_next)
for (dp = lp->l_dep; dp; dp = dp->d_next)
dp->d_name->n_flag |= N_PREC;
}