First check in

Makefile

@@ -0,0 +1,97 @@
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as 
+# published by the Free Software Foundation here:
+# (http://www.gnu.org/licenses/gpl-2.0.html)
+# 
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+export ARCH = x86_64
+export DEPENDS = glibc
+export BUILDDEPS = 
+export SRCPKG = $(PACKAGE)
+export URL = https://sourceware.org/libffi/
+REPO = main
+BRIEF = High level programming interface
+DESC = The libffi library provides a portable, high level programming \
+interface to various calling conventions. This allows a programmer \
+to call any function specified by a call interface description at run-time
+SNAPVER = 0
+
+ARCHIVE := $(PWD)/SRC/$(shell ls SRC|egrep '(bz2|gz|tar|xz)$$'|tail -1)
+TYPE := $(shell file -ib $(ARCHIVE)|cut -d';' -f1|tr -d '\n')
+SRCDIR := $(shell tar -tf $(ARCHIVE)|head -1|sed 's/\/.*//')
+PATCHDIR := $(PWD)/SRC/patches
+export VERSION := $(shell echo $(SRCDIR)|egrep -o '\-[0-9].*'| \
+	sed 's/^-//')-$(SNAPVER)
+
+include /usr/share/snap/Makefile.snaplinux
+
+DEV := $(PWD)/$(PACKAGE)-dev
+DEVROOT := $(DEV)/ROOT
+
+$(SRCDIR)/configure: $(ARCHIVE)
+	@if [ '$(TYPE)' == 'application/x-bzip2' ]; then \
+		tar -jxf $(ARCHIVE); \
+	elif [ '$(TYPE)' == 'application/x-gzip' ]; then \
+		tar -zxf $(ARCHIVE); \
+	elif [ '$(TYPE)' == 'application/x-tar' ]; then \
+		tar -xf $(ARCHIVE); \
+	elif [ '$(TYPE)' == 'application/x-xz' ]; then \
+		tar -xf $(ARCHIVE); \
+	else \
+		echo 'Unable to determine archive type'; \
+		exit 1; \
+	fi
+	@touch $(SRCDIR)/configure
+
+$(SRCDIR)/Makefile: $(SRCDIR)/configure
+	@cd $(SRCDIR) && \
+	for patch in `find $(PATCHDIR) -name \*.patch|sort`; do \
+		patch --verbose -Np1 -i $$patch; \
+	done
+	@cd $(SRCDIR); \
+	./configure \
+		--prefix=/usr \
+		--program-prefix='' \
+		--build=x86_64-snap-linux-gnu \
+		--host=x86_64-snap-linux-gnu \
+		--target=x86_64-snap-linux-gnu
+
+$(SRCDIR)/*/.libs/libffi.so: $(SRCDIR)/Makefile
+	@cd $(SRCDIR) && make
+
+$(ROOT): $(SRCDIR)/*/.libs/libffi.so
+	@if [ -d $(ROOT) ]; then \
+		touch $(ROOT); \
+	else \
+		mkdir -v $(ROOT); \
+	fi
+
+	@cd $(SRCDIR) && make install DESTDIR=$(ROOT) && \
+	rm -v $(ROOT)/usr/share/info/dir && \
+	install -v -d $(DEV)/SNAP && \
+	install -v -d $(DEVROOT) && \
+	for file in `find $(ROOT)| \
+	egrep 'man3\/|pkgconfig\/|\.(h|la)$$'`; do \
+		path=`dirname $$file|sed "s[$(ROOT)[$(DEVROOT)["`; \
+		mkdir -p $$path; \
+		mv $$file $$path; \
+	done
+	@find $(ROOT) -type d -empty -delete && \
+	cd $(DEV) && make -f ../Makefile.$(PACKAGE)-dev && mv *.snap ../
+
+test: $(ROOT)
+	@cd $(SRCDIR); \
+	make check
+
+clean:
+	@rm -rvf $(ROOT) \
+		$(DEV) \
+		$(SNAPINFO) \
+		$(MANIFEST) \
+		$(FILES) \
+		$(SRCDIR)
+

Makefile.libffi-dev

@@ -0,0 +1,16 @@
+# This file is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation here:
+# (http://www.gnu.org/licenses/gpl-2.0.html)
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+DEPENDS = libffi
+REPO = dev
+BRIEF = Development files for libffi
+DESC = Development files for libffi
+
+include /usr/share/snap/Makefile.snaplinux

SNAP/README

@@ -0,0 +1,3 @@
+This is the directory where the manifest, snapinfo, and files.tar.gz
+files will be created. It is also where the usher file should be
+placed if it is required by the package.

SRC/libffi-3.2.tar.gz.sha512

@@ -0,0 +1 @@
+fed5f6eec86144608966857f54bd69a5faa43427f27bc9178ebe2c7a1cecf925c20dbd6df07a207ae469842874efcf5b99fb7e09db59cbd92ebfc0a7e1bb62b7

SRC/patches/01_include-fix.patch

@@ -0,0 +1,28 @@
+diff -Naur a/include/Makefile.in b/include/Makefile.in
+--- a/include/Makefile.in	2014-11-11 06:31:12.000000000 -0600
++++ b/include/Makefile.in	2016-09-29 13:11:39.172000000 -0500
+@@ -314,7 +314,7 @@
+ AUTOMAKE_OPTIONS = foreign
+ DISTCLEANFILES = ffitarget.h
+ EXTRA_DIST = ffi.h.in ffi_common.h
+-includesdir = $(libdir)/@PACKAGE_NAME@-@PACKAGE_VERSION@/include
++includesdir = $(includedir)
+ nodist_includes_HEADERS = ffi.h ffitarget.h
+ all: all-am
+ 
+diff -Naur a/libffi.pc.in b/libffi.pc.in
+--- a/libffi.pc.in	2014-11-08 06:47:24.000000000 -0600
++++ b/libffi.pc.in	2016-09-29 13:11:52.508000000 -0500
+@@ -2,10 +2,10 @@
+ exec_prefix=@exec_prefix@
+ libdir=@libdir@
+ toolexeclibdir=@toolexeclibdir@
+-includedir=${libdir}/@PACKAGE_NAME@-@PACKAGE_VERSION@/include
++includedir=@includedir@
+ 
+ Name: @PACKAGE_NAME@
+ Description: Library supporting Foreign Function Interfaces
+ Version: @PACKAGE_VERSION@
+ Libs: -L${toolexeclibdir} -lffi
+-Cflags: -I${includedir}
++Cflags:

SRC/patches/README

@@ -0,0 +1,2 @@
+Place any patch files here and preface each with a number indicating
+the order of execution. Patch files are expected to use a .patch extension.