Update for compilation in linux.

* Updates Makefile for shared library build
* Removes extraneous include file

Makefile

@@ -1,4 +1,4 @@
-.PHONY: lintcheck format dep deps/quickjs cleandepend cleansql docs
+.PHONY: lintcheck format cleandepend cleansql docs clean test all
 
 PLJS_VERSION = 0.8.1
 
@@ -7,49 +7,50 @@ PGXS := $(shell $(PG_CONFIG) --pgxs)
 INCLUDEDIR := ${shell $(PG_CONFIG) --includedir}
 INCLUDEDIR_SERVER := ${shell $(PG_CONFIG) --includedir-server}
 
+
 CP = cp
-PG_CFLAGS += -fPIC -Wall -Wextra -Wno-unused-parameter -Wno-declaration-after-statement -Wno-cast-function-type -std=c11 -DPLJS_VERSION=\"$(PLJS_VERSION)\" -g -O0
 SRCS = src/pljs.c src/cache.c src/functions.c src/types.c src/params.c
-OBJS = src/pljs.o src/cache.o src/functions.o src/types.o src/params.o deps/quickjs/libquickjs.a
+OBJS = deps/quickjs/libquickjs.a src/pljs.o src/cache.o src/functions.o src/types.o src/params.o
 MODULE_big = pljs
 EXTENSION = pljs
 DATA = pljs.control pljs--$(PLJS_VERSION).sql
+PG_CFLAGS += -fPIC -Wall -Wextra -Wno-unused-parameter -Wno-declaration-after-statement -Wno-cast-function-type -std=c11 -DPLJS_VERSION=\"$(PLJS_VERSION)\"
+SHLIB_LINK = -Ldeps/quickjs -lquickjs
 
 REGRESS = init-extension function json jsonb json_conv types bytea context \
 	cursor array_spread plv8_regressions memory_limits inline composites \
 	trigger procedure find_function
 
+
+
 include $(PGXS)
 
-dep: deps/quickjs
 
-deps/quickjs:
+all: pljs--$(PLJS_VERSION).sql
+
+deps/quickjs/libquickjs.a:
 	mkdir -p deps
 	git submodule update --init --recursive
+	patch -p1 <patches/01-shared-lib-build
+	cd deps/quickjs && make libquickjs.a
 
-deps/quickjs/libquickjs.a: deps/quickjs
-	cd deps/quickjs && make
+deps/quickjs/quickjs.h: deps/quickjs/libquickjs.a
 
 format:
 	clang-format -i $(SRCS) src/pljs.h
 
-%.o: %.c pljs.h deps/quickjs/libquickjs.a
-
 pljs--$(PLJS_VERSION).sql: pljs.sql
 	$(CP) pljs.sql pljs--$(PLJS_VERSION).sql
 
-
 lintcheck:
 	clang-tidy $(SRCS) -- -I$(INCLUDEDIR) -I$(INCLUDEDIR_SERVER) -I$(PWD) --std=c11
 
-.depend:
+.depend: deps/quickjs/quickjs.h
 	$(RM) -f .depend
-	$(foreach SRC,$(SRCS),$(CC) $(PG_CFLAGS) -I$(INCLUDEDIR) -I$(INCLUDEDIR_SERVER) \
+	$(foreach SRC,$(SRCS),$(CC) $(CFLAGS) -I$(INCLUDEDIR) -I$(INCLUDEDIR_SERVER) \
 	   -I$(PWD) -MM -MT $(SRC:.c=.o) $(SRC) >> .depend;)
 
-include .depend
 
-all: pljs--$(PLJS_VERSION).sql deps/quickjs/libquickjs.a
 
 clean: cleandepend cleansql
 
@@ -61,3 +62,5 @@ cleansql:
 
 docs:
 	doxygen src/Doxyfile
+
+include .depend

patches/01-shared-lib-build

@@ -0,0 +1,14 @@
+diff --git a/Makefile b/Makefile
+index cf88a72..ff629db 100644
+--- a/Makefile
++++ b/Makefile
+@@ -56,6 +56,9 @@ CONFIG_BIGNUM=y
+
+ OBJDIR=.obj
+
++# force compilation to be able to be relocated
++CFLAGS += -fPIC
++
+ ifdef CONFIG_ASAN
+ OBJDIR:=$(OBJDIR)/asan
+ endif

src/types.c

@@ -15,7 +15,6 @@
 #include "deps/quickjs/quickjs.h"
 
 #include "pljs.h"
-#include <sys/syslimits.h>
 
 // helper functions that should really exist as part of quickjs.
 static JSClassID JS_CLASS_OBJECT = 1;