--- /dev/null
+# Copyright 1999-2019 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+inherit toolchain-funcs
+
+DEB_PV=20100827
+DEB_PR=1
+DEB_P=${PN}_${DEB_PV}
+
+DESCRIPTION="Fortran to C converter"
+HOMEPAGE="http://www.netlib.org/f2c"
+SRC_URI="
+ mirror://debian/pool/main/${PN:0:1}/${PN}/${DEB_P}.orig.tar.gz
+ mirror://debian/pool/main/${PN:0:1}/${PN}/${DEB_P}-${DEB_PR}.debian.tar.gz"
+
+LICENSE="HPND"
+SLOT="0"
+KEYWORDS="~amd64 ~ppc ~ppc64 ~x86 ~x86-fbsd ~amd64-linux ~x86-linux"
+
+RDEPEND=">=dev-libs/libf2c-20130927-r1"
+
+S="${WORKDIR}/${PN}"
+
+PATCHES=(
+ # selective list of patches from debian
+ "${WORKDIR}"/debian/patches/0000-prequilt-tweaks.patch
+ "${WORKDIR}"/debian/patches/0002-prototype-rmdir.patch
+ "${WORKDIR}"/debian/patches/0003-struct-init-braces.patch
+ "${WORKDIR}"/debian/patches/0004-man-dash-hyphen-slash.patch
+
+ "${FILESDIR}"/${PN}-20100827-fix-buildsystem.patch
+ "${FILESDIR}"/${PN}-20100827-Wimplicit-function-declaration.patch
+)
+
+src_configure() {
+ tc-export CC
+}
+
+src_compile() {
+ emake -C src -f makefile.u f2c
+}
+
+src_install() {
+ dobin src/f2c
+
+ doman f2c.1
+ dodoc src/README src/Notice
+
+ dodoc f2c.pdf
+ newdoc "${WORKDIR}"/debian/changelog debian.changelog
+}
--- /dev/null
+--- a/src/makefile.u
++++ b/src/makefile.u
+@@ -1,15 +1,10 @@
+ # Makefile for f2c, a Fortran 77 to C converter
+
+ .SUFFIXES: .c .o
+-CC = cc
+-CFLAGS = -O
+ SHELL = /bin/sh
+ YACC = yacc
+ YFLAGS =
+
+-.c.o:
+- $(CC) -c $(CFLAGS) $*.c
+-
+ OBJECTSd = main.o init.o gram.o lex.o proc.o equiv.o data.o format.o \
+ expr.o exec.o intr.o io.o misc.o error.o mem.o names.o \
+ output.o p1output.o pread.o put.o putpcc.o vax.o formatdata.o \
+@@ -100,9 +95,6 @@
+ parse.h parse_args.c pccdefs.h pread.c proc.c put.c putpcc.c \
+ sysdep.c sysdep.h sysdeptest.c tokens usignal.h vax.c version.c xsum.c
+
+-xsum: xsum.c
+- $(CC) $(CFLAGS) -o xsum xsum.c
+-
+ #Check validity of transmitted source...
+ xsum.out: xsum $b
+ ./xsum $b >xsum1.out