Modernize and add FreeBSD port.

configure.ac

@@ -1,5 +1,5 @@
-AC_PREREQ([2.63])
-AC_INIT([cryb.otp], [0.20190326], [des@des.no], [cryb-otp], [http://cryb.to/])
+AC_PREREQ([2.69])
+AC_INIT([cryb.otp], [0.20220916], [des@des.no], [cryb-otp], [http://cryb.to/])
 AC_CONFIG_SRCDIR([include/cryb/otp.h])
 AC_CONFIG_MACRO_DIR([m4])
 AM_INIT_AUTOMAKE([foreign no-dist-gzip dist-xz])
@@ -14,10 +14,9 @@ AM_MAINTAINER_MODE([enable])
 # C compiler and features
 AC_LANG(C)
 AC_PROG_CC([clang gcc cc])
-AC_PROG_CC_STDC
 AC_PROG_CPP
 AC_PROG_CXX([clang++ g++ c++])
-AC_GNU_SOURCE
+AC_USE_SYSTEM_EXTENSIONS
 AC_C_CONST
 AC_C_RESTRICT
 AC_C_VOLATILE
@@ -149,6 +148,7 @@ CRYB_RESOLVE
 
 AC_CONFIG_FILES([
     Makefile
+    freebsd/Makefile
     include/Makefile
     include/cryb/Makefile
     lib/Makefile

freebsd/.gitignore

@@ -0,0 +1,2 @@
+!/Makefile.in
+/work

freebsd/Makefile.in

@@ -0,0 +1,33 @@
+# $FreeBSD: portlint$
+
+PORTNAME=	@PACKAGE_TARNAME@
+PORTVERSION=	@PACKAGE_VERSION@
+CATEGORIES=	security
+MASTER_SITES=	#
+DISTFILES=	#
+
+MAINTAINER=	@PACKAGE_BUGREPORT@
+COMMENT=	OATH HOTP / TOTP
+
+LICENSE=	BSD3CLAUSE
+
+USES=		gmake libtool pkgconfig
+USE_LDCONFIG=	yes
+GNU_CONFIGURE=	yes
+INSTALL_TARGET=	install-strip
+TEST_TARGET=	check
+
+DESCR=		${WRKDIR}/pkg-descr
+
+do-extract:
+	(cd @abs_top_srcdir@ && \
+	    ${GMAKE} distdir && ${MV} ${PKGNAME} ${WRKDIR})
+	(${CAT} ${WRKSRC}/README && ${ECHO} && \
+	    ${ECHO} "WWW: http://cryb.to/") >${DESCR}
+
+post-stage:
+	(cd ${STAGEDIR} && \
+	    ${FIND} -s . -type f -or -type l | cut -c 2- | \
+	    ${SED} -E '/\/man\//s/([0-9])$$/\1.gz/') >>${TMPPLIST}
+
+.include <bsd.port.mk>

lib/otp/Makefile.am

@@ -8,6 +8,9 @@ libcryb_otp_la_SOURCES = \
 	\
 	cryb_otp.c
 
+noinst_HEADERS = \
+	cryb_otp_impl.h
+
 libcryb_otp_la_CFLAGS = \
 	 $(CRYB_CORE_CFLAGS) \
 	 $(CRYB_OATH_CFLAGS)