Added a Makefile to make the compilation easy like an Apple ;)

.gitignore

@@ -0,0 +1,2 @@
+.vscode
+.history

Makefile

@@ -0,0 +1,52 @@
+#
+# Makefile for asterisk-res_json
+# Contributed by Fernando Santos <[email protected]>
+#
+ASTBIN=$(shell which asterisk)
+ASTLIBDIR:=$(shell $(ASTBIN) -rx 'core show settings' | grep 'Module directory' | awk '{print $$3}')
+ifeq ($(strip $(ASTLIBDIR)),)
+	MODULES_DIR:=$(INSTALL_PREFIX)/usr/lib/asterisk/modules
+else
+	MODULES_DIR:=$(INSTALL_PREFIX)$(ASTLIBDIR)
+endif
+
+INSTALL:=install
+CC:=gcc
+ECHO:=echo
+OPTIMIZE:=-O2
+DEBUG:=-g
+
+RES_JSON_TARGET = res_json.so
+RES_JSON_OBJ = res_json.o cJSON.o
+RES_JSON_SRC = res_json.c cJSON.c
+
+MODULES = res_json.so
+
+LIBS+=-g -ggdb -I. 
+LIBS+=$(shell pkg-config --cflags --libs asterisk) -I/usr/local/include/asterisk -I/usr/include/asterisk 
+CFLAGS += -Wno-missing-field-initializers -Wno-unknown-pragmas -Wextra -Wno-unused-parameter -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Winit-self -Wmissing-format-attribute \
+          -Wformat=2 -g -fPIC -D_GNU_SOURCE
+
+LDFLAGS += -shared -Wno-unknown-pragmas
+
+.PHONY: install clean
+
+%.o: %.c $(HEADERS)
+	$(CC) -c $(CFLAGS) -D'AST_MODULE="res_json"' -D'AST_MODULE_SELF_SYM=__internal_res_json_self' -o $@ $<
+
+res_json.so: $(RES_JSON_OBJ)
+	$(CC) $(LDFLAGS) $(RES_JSON_OBJ) $(LIBS) -o $@
+
+all: $(MODULES)
+
+clean:
+	find . -name "*.o" -type f -delete
+	find . -name "*.so" -type f -delete
+
+install: $(MODULES)
+	$(INSTALL) -m 755 -d $(DESTDIR)$(MODULES_DIR)
+	$(INSTALL) -m 755 $(MODULES) $(DESTDIR)$(MODULES_DIR)
+	@echo " +------- res_json Installation Complete ------+"
+	@echo " +                                             +"
+	@echo " + res_json app has successfully installed     +"
+	@echo " +---------------------------------------------+"

cJSON.c

@@ -30,7 +30,8 @@
 #include <float.h>
 #include <limits.h>
 #include <ctype.h>
-#include <asterisk/cJSON.h>
+
+#include "cJSON.h"
 
 static int cJSON_strcasecmp(const char *s1,const char *s2)
 {

install.sh

@@ -1,9 +1,5 @@
-if [ ! -s include/asterisk.h ] ; then
-	echo "please cd into the directory where the asterisk source has been untarred"
-	exit
-fi
-cp asterisk-res_json/res_json.c addons/.
-cp asterisk-res_json/cJSON.h include/asterisk/.
-cp asterisk-res_json/cJSON.c addons/.
-echo "edit addons/Makefile: add res_json to the list of modules built, and"
-echo "    res_json.so: cJSON.o res_json.o"
+echo "======================================================================="
+echo "#      INSTALLING Asterisk res_json.so 								#"
+echo "======================================================================="
+make clean && make all && make install
+

res_json.c

@@ -39,17 +39,16 @@
 	<support_level>core</support_level>
  ***/
 
-#include "asterisk.h"
+#include <asterisk.h>
 
+#include <asterisk/file.h>
+#include <asterisk/channel.h>
+#include <asterisk/pbx.h>
+#include <asterisk/module.h>
+#include <asterisk/app.h>
+#include <asterisk/utils.h>
 
-
-#include "asterisk/file.h"
-#include "asterisk/channel.h"
-#include "asterisk/pbx.h"
-#include "asterisk/module.h"
-#include "asterisk/app.h"
-#include "asterisk/utils.h"
-#include "asterisk/cJSON.h"
+#include "cJSON.h"
 
 /*** DOCUMENTATION
 	<function name="JSONPRETTY" language="en_US">