Add support for MUSL on Linux

src/GNUmakefile.common

@@ -89,7 +89,7 @@ magichat:	${JSMN}
 		cd ${UTILSDIR}/magichat && ${MAKE}
 
 filecenter:	${CDK}
-		cd ${UTILSDIR}/filecenter && ${MAKE}
+		cd ${UTILSDIR}/filecenter && ${MAKE} ${FTSLIB}
 
 dosbox_shim:
 		cd ${UTILSDIR}/dosbox_shim && ${MAKE}

src/GNUmakefile.linux-musl

@@ -0,0 +1,13 @@
+CC:=			cc
+CFLAGS:=		-std=gnu99 -I/usr/local/include
+LIBS:=			-L/usr/local/lib -lsqlite3 -lutil -lm -ldl -lssl -lcrypto -lssh -lmosquitto -lfts
+EXTRAOBJS:=     strlcpy/strlcpy.o strlcpy/strlcat.o
+
+LIBTOOLIZE:=    libtoolize
+
+DEPS_LUA_TARGET:=	linux
+DEPS_JAMLIB_MAKEFILE:=	Makefile.linux-musl
+
+FTSLIB:= FTSLIB=1
+
+include GNUmakefile.common