stfl: fix makefile for on-device build support

packages/stfl/001-makefile.patch

@@ -1,18 +1,23 @@
-diff -Naur stfl-0.24.orig/Makefile stfl-0.24/Makefile
---- stfl-0.24.orig/Makefile	2015-02-12 14:14:33.000000000 +0100
-+++ stfl-0.24/Makefile	2016-05-31 21:26:11.162048447 +0200
-@@ -20,10 +20,6 @@
+diff -uNr stfl-0.24/Makefile stfl-0.24.mod/Makefile
+--- stfl-0.24/Makefile	2015-02-12 15:14:33.000000000 +0200
++++ stfl-0.24.mod/Makefile	2019-08-16 15:05:15.360298872 +0300
+@@ -20,9 +20,12 @@
  
  include Makefile.cfg
  
 -export CC = gcc -pthread
 -export CFLAGS += -I. -Wall -Os -ggdb -D_GNU_SOURCE -fPIC
 -export LDLIBS += -lncursesw
--
++CC ?= gcc
++AR ?= ar
++RANLIB ?= ranlib
++
++CFLAGS += -Wall -D_GNU_SOURCE -fPIC -I.
++LDLIBS += -lncursesw
+ 
  SONAME  := libstfl.so.0
  VERSION := 0.24
- 
-@@ -34,12 +30,12 @@
+@@ -34,12 +37,12 @@
  libstfl.a: public.o base.o parser.o dump.o style.o binding.o iconv.o \
             $(patsubst %.c,%.o,$(wildcard widgets/*.c))
  	rm -f $@
@@ -28,7 +33,7 @@ diff -Naur stfl-0.24.orig/Makefile stfl-0.24/Makefile
  
  clean:
  	rm -f libstfl.a example core core.* *.o Makefile.deps
-@@ -65,6 +61,7 @@
+@@ -65,6 +68,7 @@
  	install -m 644 stfl.pc $(DESTDIR)$(prefix)/$(libdir)/pkgconfig/
  	install -m 644 libstfl.so.$(VERSION) $(DESTDIR)$(prefix)/$(libdir)
  	ln -fs libstfl.so.$(VERSION) $(DESTDIR)$(prefix)/$(libdir)/libstfl.so
@@ -36,9 +41,9 @@ diff -Naur stfl-0.24.orig/Makefile stfl-0.24/Makefile
  
  stfl.pc: stfl.pc.in
  	sed 's,@VERSION@,$(VERSION),g' < $< | sed 's,@PREFIX@,$(prefix),g' > $@
-diff -Naur stfl-0.24.orig/Makefile.cfg stfl-0.24/Makefile.cfg
---- stfl-0.24.orig/Makefile.cfg	2009-05-31 20:20:39.000000000 +0200
-+++ stfl-0.24/Makefile.cfg	2016-05-30 05:50:59.051375377 +0200
+diff -uNr stfl-0.24/Makefile.cfg stfl-0.24.mod/Makefile.cfg
+--- stfl-0.24/Makefile.cfg	2009-05-31 21:20:39.000000000 +0300
++++ stfl-0.24.mod/Makefile.cfg	2019-08-16 15:20:06.621673157 +0300
 @@ -20,7 +20,6 @@
  
  export libdir ?= lib

packages/stfl/build.sh

@@ -12,6 +12,5 @@ TERMUX_PKG_BUILD_IN_SRC=true
 
 termux_step_configure() {
 	CC+=" $CPPFLAGS"
-	CFLAGS+=" -fPIC -I. -D_XOPEN_SOURCE_EXTENDED=1"
-	LDFLAGS+=" -lncursesw -liconv"
+	export LDLIBS="-liconv"
 }