Application.mk and main.c files: Change builtin's entry point from main to xxx_main by macro expansion. This change make the entry point fully compliant with POSIX/ANSI standard.

examples/module/Makefile

@@ -37,9 +37,10 @@ include $(TOPDIR)/Make.defs
 
 # Module example built-in application info
 
-APPNAME = module
+PROGNAME = module
 PRIORITY = SCHED_PRIORITY_DEFAULT
 STACKSIZE = 2048
+MODULE = $(CONFIG_EXAMPLES_MODULE)
 
 # Module Example
 
@@ -49,9 +50,6 @@ ifeq ($(CONFIG_BUILD_FLAT),y)
 CSRCS += mod_symtab.c
 endif
 
-CONFIG_XYZ_PROGNAME ?= module$(EXEEXT)
-PROGNAME = $(CONFIG_XYZ_PROGNAME)
-
 VPATH += drivers
 ROOTDEPPATH += --dep-path drivers
 
@@ -63,6 +61,4 @@ context::
 clean::
 	@$(MAKE) -C drivers TOPDIR="$(TOPDIR)" APPDIR="$(APPDIR)" CROSSDEV=$(CROSSDEV) clean
 
-MODULE = CONFIG_EXAMPLES_MODULE
-
 include $(APPDIR)/Application.mk

examples/module/module_main.c

@@ -143,11 +143,7 @@ extern const int g_mod_nexports;
  * Name: module_main
  ****************************************************************************/
 
-#ifdef BUILD_MODULE
 int main(int argc, FAR char *argv[])
-#else
-int module_main(int argc, char *argv[])
-#endif
 {
 #ifdef CONFIG_BUILD_FLAT
   struct boardioc_symtab_s symdesc;