Imported Upstream version 93u+upstream

1 files changed, 45 insertions, 0 deletions

diff --git a/src/cmd/INIT/MAPLIB.mk b/src/cmd/INIT/MAPLIB.mk
new file mode 100644
index 0000000..5761035
--- /dev/null
+++ b/src/cmd/INIT/MAPLIB.mk
@@ -0,0 +1,45 @@
+/*
+ * normalize local -l* library conventions
+ *
+ * L [ [ G11 ... G1n ] ... [ Gg1 ... Ggn ] ] :MAPLIB: T1.c ... Tn.c
+ *
+ * if Giji not specified then G11 == L
+ * the first Ti.c that compiles/links with group -lGi1 ... -lGin
+ * but does not compile/link with no libraries maps
+ * -lL to to require -lGi1 ... -lGin
+ * otherwise -lL is not required and maps to "no library required"
+ */
+
+":MAPLIB:" : .MAKE .OPERATOR
+	local L P
+	L := $(<:B:O=1)
+	if ! ( P = "$(<:B:O>1)" )
+		P := $(L)
+	end
+	$(LIBDIR)/lib/$(L) :INSTALL: $(L).req
+	eval
+	$(L).req : (CC) $$(>)
+		set -
+		r='-'
+		for i in $$(*)
+		do	if	$$(CC) -c $i > /dev/null
+			then	g=
+				for p in $(P) -
+				do	case $p in
+					-)	if	$$(CC) -o $$(<:B:S=.exe) $i $g > /dev/null 2>&1
+						then	$$(CC) -o $$(<:B:S=.exe) $i > /dev/null 2>&1 || {
+								r="$g"
+								break 2
+							}
+						fi
+						g=
+						;;
+					*)	g="$g -l$p"
+						;;
+					esac
+				done
+			fi
+		done 2>/dev/null
+		echo " $r" > $$(<)
+		rm -f $$(<:B:S=.exe) $$(*:B:S=$$(CC.SUFFIX.OBJECT))
+	end