Fix FTBFS with ld --as-needed
Author: Angel Abad
--- a/Makefile.in
+++ b/Makefile.in
@@ -107,7 +107,7 @@
 INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
 LDFLAGS = @LDFLAGS@
 LIBOBJS = @LIBOBJS@
-LIBS = @LIBS@
+LIBS = @LIBS@ -lm
 LTLIBOBJS = @LTLIBOBJS@
 MAKEINFO = @MAKEINFO@
 MKDIR_P = @MKDIR_P@
@@ -167,7 +167,7 @@
 top_srcdir = @top_srcdir@
 goaccess_SOURCES = settings.c settings.h error.c error.h alloc.h  commons.c  commons.h  goaccess.c  parser.c  parser.h  ui.c  ui.h  util.c  util.h goaccess.h
 AM_CFLAGS = -g -Wall @GLIB2_CFLAGS@
-AM_LDFLAGS = -lm
+AM_LDFLAGS =
 dist_man_MANS = goaccess.1
 all: config.h
 	$(MAKE) $(AM_MAKEFLAGS) all-am
