diff -ru figlet-2.2.5.old/figlet.c figlet-2.2.5/figlet.c

--- figlet-2.2.5.old/figlet.c	2012-06-01 14:51:09.000000000 +0200

+++ figlet-2.2.5/figlet.c	2016-12-15 19:25:24.509693744 +0100

@@ -66,10 +66,8 @@

 #include <sys/stat.h>

 #include <fcntl.h>     /* Needed for get_columns */

-#ifdef unix

 #include <unistd.h>

 #include <sys/ioctl.h> /* Needed for get_columns */

-#endif

 #ifdef TLF_FONTS

 #include <wchar.h>

diff -ru figlet-2.2.5.old/Makefile figlet-2.2.5/Makefile

--- figlet-2.2.5.old/Makefile	2012-06-01 14:51:09.000000000 +0200

+++ figlet-2.2.5/Makefile	2016-12-15 20:33:51.653693744 +0100

@@ -19,17 +19,17 @@

 SHELL = /bin/sh

 # The C compiler and linker to use

-CC	= gcc

-CFLAGS	= -g -O2 -Wall

-LD	= gcc

-LDFLAGS =

+CC	?= gcc

+CFLAGS	?= -g -O2 -Wall

+LD	?= gcc

+LDFLAGS ?=

 # Feature flags:

 #   define TLF_FONTS to use TOIlet TLF fonts

 XCFLAGS	= -DTLF_FONTS

 # Where to install files

-prefix	= /usr/local

+prefix ?= 

 # Where the executables should be put

 BINDIR	= $(prefix)/bin

diff -ru figlet-2.2.5.old/utf8.h figlet-2.2.5/utf8.h

--- figlet-2.2.5.old/utf8.h	2012-06-01 14:51:10.000000000 +0200

+++ figlet-2.2.5/utf8.h	2016-12-15 19:11:35.805693744 +0100

@@ -27,13 +27,17 @@

 #define UTF8_IGNORE_ERROR		0x01

 #define UTF8_SKIP_BOM			0x02

-__BEGIN_DECLS

+#ifdef   __cplusplus

+extern "C" {

+#endif

 size_t		utf8_to_wchar(const char *in, size_t insize, wchar_t *out,

 		    size_t outsize, int flags);

 size_t		wchar_to_utf8(const wchar_t *in, size_t insize, char *out,

 		    size_t outsize, int flags);

-__END_DECLS

+#ifdef   __cplusplus

+}

+#endif

 #endif /* !_UTF8_H_ */