Add libzstd.pc Build to More Aggregate Targets in Makefiles

Makefile

@@ -45,7 +45,7 @@ allmost: allzstd zlibwrapper
 
 # skip zwrapper, can't build that on alternate architectures without the proper zlib installed
 .PHONY: allzstd
-allzstd: lib
+allzstd: lib-all
 	$(MAKE) -C $(PRGDIR) all
 	$(MAKE) -C $(TESTDIR) all
 
@@ -55,7 +55,7 @@ all32:
 	$(MAKE) -C $(TESTDIR) all32
 
 .PHONY: lib lib-release libzstd.a
-lib lib-release :
+lib lib-release lib-all :
 	@$(MAKE) -C $(ZSTDDIR) $@
 
 .PHONY: zstd zstd-release

lib/Makefile

@@ -180,11 +180,14 @@ else
 endif
 
 
-.PHONY: default all clean install uninstall
+.PHONY: default lib-all all clean install uninstall
 
 default: lib-release
 
-all: lib
+# alias
+lib-all: all
+
+all: lib libzstd.pc
 
 libzstd.a: ARFLAGS = rcs
 libzstd.a: $(ZSTD_OBJ)