1 files changed, 61 insertions, 0 deletions
diff --git a/autosetup/local.tcl b/autosetup/local.tcl
new file mode 100644
index 0000000..63b5743
--- /dev/null
+++ b/autosetup/local.tcl
@@ -0,0 +1,61 @@
+# For this project, disable the pager for --help and --ref
+# The user can still enable by using --nopager=0 or --disable-nopager
+dict set autosetup(optdefault) nopager 1
+
+# Searches for a usable Tcl (prefer 8.6, 8.5, 8.4) in the given paths
+# Returns a dictionary of the contents of the tclConfig.sh file, or
+# empty if not found
+proc parse-tclconfig-sh {args} {
+	foreach p $args {
+		# Allow pointing directly to the path containing tclConfig.sh
+		if {[file exists $p/tclConfig.sh]} {
+			return [parse-tclconfig-sh-file $p/tclConfig.sh]
+		}
+		# Some systems allow for multiple versions
+		foreach libpath {lib/tcl8.6 lib/tcl8.5 lib/tcl8.4 lib/tcl tcl lib}  {
+			if {[file exists $p/$libpath/tclConfig.sh]} {
+				return [parse-tclconfig-sh-file $p/$libpath/tclConfig.sh]
+			}
+		}
+	}
+}
+
+proc parse-tclconfig-sh-file {filename} {
+	foreach line [split [readfile $filename] \n] {
+		if {[regexp {^(TCL_[^=]*)=(.*)$} $line -> name value]} {
+			set value [regsub -all {\$\{.*\}} $value ""]
+			set tclconfig($name) [string trim $value ']
+		}
+	}
+	return [array get tclconfig]
+}
+
+#
+# Given a library link flag, e.g. -lfoo, returns 1 if that library can
+# actually be linked to, else returns 0.
+proc lib-actually-exists {linkFlag} {
+  cctest -link 1 -code "void libActuallyExists(void){}" -libs $linkFlag
+}
+
+#
+# Given a library flag, e.g. -lfoo, a list of libs, e.g. {-lfoo -lbar
+# -lbaz}, and a target variable name, this function appends all
+# entries of $libList which do not match $flag to $tgtVar, then
+# appends $flag to the end of $tgtVar. Returns the number of matches
+# found.
+proc move-lib-to-end {flag libList tgtVar} {
+  upvar $tgtVar tgt
+  set tgt {}
+  set found 0
+  foreach e $libList {
+    if {$flag eq $e} {
+      incr found
+    } else {
+      lappend tgt $e
+    }
+  }
+  if {$found} {
+    lappend tgt $flag
+  }
+  return $found
+}