Revise dependency handling. Correctly display cyclic dependencies.

* src/comp.c (component_log_dep): Remove.
(report_cyclic_dependency): New function.
(comp_array_remove): New function.
(component_build_depmap): Remove erroneous components both from
the component table and dependency map.
(components_dump_depmap): Avoid trailing whitespace in the output.
* src/depmap.c (depmap_clear_all): Remove.
(depmap_remove): New function.
* src/pies.h (CF_REMOVE): New flag.
(depmap_clear_all): Remove prototype.
(depmap_remove): New prototype.

* tests/Makefile.am: Add new test.
* tests/atlocal.in (trimws): New function.
* tests/cyclic.at: New test.
* tests/testsuite.at: Include new test.

1 files changed, 3 insertions, 3 deletions

diff --git a/src/pies.h b/src/pies.h
index 70d972a..e7e5d71 100644
--- a/src/pies.h
+++ b/src/pies.h
@@ -199,6 +199,8 @@ enum pies_comp_mode
 
 #define CF_NULLINPUT   0x200 /* Provide null input stream */
 
+#define CF_REMOVE      0x400 /* Marked for removal */
+
 #define ISCF_TCPMUX(f) ((f) & (CF_TCPMUX | CF_TCPMUXPLUS))
 
 struct prog;
@@ -374,9 +376,7 @@ pies_depmap_t depmap_copy (pies_depmap_t dpm);
 void depmap_set (pies_depmap_t dmap, size_t row, size_t col);
 int depmap_isset (pies_depmap_t dmap, size_t row, size_t col);
 void depmap_clear (pies_depmap_t dmap, size_t row, size_t col);
-
-void depmap_clear_all (pies_depmap_t dmap, enum pies_depmap_direction dir,
-                       size_t coord);
+void depmap_remove (pies_depmap_t dmap, size_t n);
 
 void depmap_tc (pies_depmap_t dmap);
 size_t depmap_first (pies_depmap_t dmap, enum pies_depmap_direction dir,