sci-electronics/gnetman: Port to EAPI 7

Closes: https://bugs.gentoo.org/707894
Closes: https://bugs.gentoo.org/711354
Closes: https://bugs.gentoo.org/746032
Package-Manager: Portage-3.0.8, Repoman-3.0.2
Signed-off-by: David Seifert <soap@gentoo.org>

sci-electronics/gnetman/files/gnetman-0.0.1_pre20110124-build-system.patch

@@ -0,0 +1,22 @@
+--- a/src/batch/configure
++++ b/src/batch/configure
+@@ -72,8 +72,8 @@
+ flex -f -Pvr -o../verilog/vrscan.c ../verilog/vrscan.l
+ swig -tcl8 ../tcl/tclfunc.i
+ 
+-CFLAGS="-g -Wall -W -Wno-unused-parameter -Wno-unused-function -DDD_DEBUG -I../include -I../spice -I/usr/include/tcl8.4"
+-LIBS="-lpopt -ltcl8.4 -lddutil-dbg"
++CFLAGS="${CFLAGS} -W -Wno-unused-parameter -Wno-unused-function -I../include -I../spice"
++LIBS="-lpopt -ltcl -lddutil"
+ 
+ echo "CC=$CC
+ CFLAGS=$CFLAGS
+@@ -91,7 +91,7 @@
+ TARGET='../../bin/gnetman'
+ 
+ $(TARGET): $(OBJECTS)
+-	$(CC) $(CFLAGS) $(OBJECTS) $(LIBS) -o $(TARGET)
++	$(CC) $(CFLAGS) $(LDFLAGS) $(OBJECTS) $(LIBS) -o $(TARGET)
+ 
+ clean:
+ 	rm -f $(OBJECTS) ../*/*database.[ch] ../*/*scan.c ../*/*parse.c

sci-electronics/gnetman/files/gnetman-0.0.1_pre20110124-fno-common.patch

@@ -0,0 +1,30 @@
+--- a/src/sch/schwrite.c
++++ b/src/sch/schwrite.c
+@@ -21,7 +21,7 @@
+ --------------------------------------------------------------------------------------------------*/
+ #include "sch.h"
+ 
+-FILE *schFile;
++extern FILE *schFile;
+ 
+ /*--------------------------------------------------------------------------------------------------
+   Write to schFile.
+--- a/src/spice/cir.h
++++ b/src/spice/cir.h
+@@ -36,5 +36,5 @@
+ extern void cirwarn(char *message, ...);
+ 
+ /* Attribute symbols */
+-utSym cirGraphicalSym, cirNetSym, cirSpiceTypeSym, cirSpiceTextSym;
++extern utSym cirGraphicalSym, cirNetSym, cirSpiceTypeSym, cirSpiceTextSym;
+ 
+--- a/src/spice/cirwrite.c
++++ b/src/spice/cirwrite.c
+@@ -29,6 +29,7 @@
+ FILE *cirFile;
+ uint32 cirLineNum;
+ cirRoot cirTheRoot;
++utSym cirGraphicalSym, cirNetSym, cirSpiceTypeSym, cirSpiceTextSym;
+ 
+ static char *cirLine;
+ static uint32 cirLinePos, cirLineSize, cirLastBreakPos;

sci-electronics/gnetman/files/gnetman-0.0.1_pre20110124-tcl86.patch

@@ -1,5 +1,5 @@
---- gnetman-0.0.1_pre20110124_orig/src/tcl/tclwrap.c	2012-05-25 07:44:51.000000000 +0200
-+++ gnetman-0.0.1_pre20110124/src/tcl/tclwrap.c	2013-02-24 12:58:51.000000000 +0100
+--- a/src/tcl/tclwrap.c
++++ b/src/tcl/tclwrap.c
 @@ -46,7 +46,7 @@
     result = Tcl_EvalFile(interp, (char *)fileName) == TCL_OK;
     if (!result) {

sci-electronics/gnetman/gnetman-0.0.1_pre20110124.ebuild

@@ -1,38 +1,44 @@
 # Copyright 1999-2020 Gentoo Authors
 # Distributed under the terms of the GNU General Public License v2
 
-EAPI=4
+EAPI=7
 
-inherit eutils toolchain-funcs
+inherit toolchain-funcs
 
 DESCRIPTION="A GNU Netlist Manipulation Library"
 HOMEPAGE="https://sourceforge.net/projects/gnetman/"
 #snapshot from http://gnetman.git.sourceforge.net/git/gitweb.cgi?p=gnetman/gnetman;
 SRC_URI="mirror://gentoo/${P}.tar.gz"
 
-SLOT="0"
 LICENSE="GPL-2"
-IUSE="doc examples"
+SLOT="0"
 KEYWORDS="~amd64 ~x86"
+IUSE="doc examples"
 
-S=${WORKDIR}/${P}/src/batch
-
-RDEPEND=">=dev-lang/tcl-8.6:0
+RDEPEND="
+	>=dev-lang/tcl-8.6:0
 	sci-electronics/geda"
 DEPEND="${RDEPEND}
 	dev-db/datadraw"
 
-src_prepare() {
-	sed -e "/^CFLAGS=/s:-g -Wall:${CFLAGS}:" \
-	    -e "/^CFLAGS=/s:-I/usr/include/tcl8.4::" \
-		-e "/^LIBS=/s:-ltcl8.4:-ltcl:" \
-		-e '/^$(TARGET):/,+3s:$(CFLAGS):$(CFLAGS) $(LDFLAGS):' \
-		-i configure || die
-	tc-export CC
-
-	cd ../.. || die
+S="${WORKDIR}/${P}/src/batch"
+PATCHES=(
 	# fix build issues with tcl-8.6, #452034
-	epatch "${FILESDIR}/${P}-tcl86.patch"
+	"${FILESDIR}"/${P}-tcl86.patch
+	# fix build system, #711354
+	"${FILESDIR}"/${P}-build-system.patch
+	# fix -fno-common, #707894
+	"${FILESDIR}"/${P}-fno-common.patch
+)
+
+src_prepare() {
+	cd ../.. || die
+	default
+}
+
+src_configure() {
+	tc-export CC
+	default
 }
 
 src_install() {