Comment fixes, move have_curses logic.

Author: nascheme

Tools/configure/conf_extlibs.py

@@ -440,7 +440,7 @@ def detect_uuid(v):
     v.export("LIBUUID_CFLAGS", LIBUUID_CFLAGS)
     v.export("LIBUUID_LIBS", LIBUUID_LIBS)
 
-    # configure_5.ac checks "$HAVE_UUID_GENERATE_TIME_SAFE" = "1" which is a shell var
+    # configure.ac checks "$HAVE_UUID_GENERATE_TIME_SAFE" = "1" which is a shell var
     # that is never assigned (AC_DEFINE only writes to confdefs.h, not shell vars),
     # so this block never executes in the old configure.  Match that behaviour.
     if False and have_uuid is True and ac_cv_have_uuid_generate_time_safe:
@@ -901,6 +901,8 @@ def check_compression_libraries(v):
 
 def _check_curses(v, lib, panel_lib):
     """Detect a curses library pair via pkg-config, with link-test fallback."""
+    v.have_curses = False
+    v.have_panel = False
     lib_upper = lib.upper()
     panel_upper = panel_lib.upper()
     pkg = pyconf.pkg_check_modules("CURSES", lib)
@@ -1030,7 +1032,7 @@ def check_curses(v):
                 )
 
             # _CURSES_INCLUDES: conditionally include the right curses header
-            # (mirrors the _CURSES_INCLUDES M4 macro in configure_8.ac lines 47-63)
+            # (mirrors the _CURSES_INCLUDES M4 macro in configure.ac)
             CURSES_INCLUDES = """\
 #define NCURSES_OPAQUE 0
 #if defined(HAVE_NCURSESW_NCURSES_H)

Tools/configure/conf_syslibs.py

@@ -370,13 +370,6 @@ def check_stat_timestamps(v):
             "Define if you have struct stat.st_mtimensec",
         )
 
-    # ---------------------------------------------------------------------------
-    # Initialize curses/panel state -- detection happens in configure_8.py
-    # (configure_7.ac lines 1429-1430)
-    # ---------------------------------------------------------------------------
-    v.have_curses = False
-    v.have_panel = False
-
 
 WITH_TZPATH = pyconf.arg_with(
     "tzpath",

Tools/configure/pyconf.py

@@ -265,7 +265,7 @@ def init_args() -> None:
     # configure.ac's ac_precious_vars list (PKG_CONFIG before CC, no CXX/CXXFLAGS
     # since configure.ac does not call AC_ARG_VAR for those).  User-level
     # precious variables (MACHDEP, PROFILE_TASK, GDBM_CFLAGS, …) are registered
-    # via env_var() calls in the configure_*.py files instead.
+    # via env_var() calls in the conf_*.py files instead.
     for pvar in [
         "PKG_CONFIG",
         "PKG_CONFIG_PATH",