From: Mark Kettenis <mark.kettenis@xs4all.nl>
Subject: Re: pkg-config files for curses?
To: Stuart Henderson <stu@spacehopper.org>
Cc: tech@openbsd.org
Date: Wed, 19 Feb 2025 14:17:09 +0100

> Date: Tue, 18 Feb 2025 23:48:31 +0000
> From: Stuart Henderson <stu@spacehopper.org>
> 
> I ran into some problems with curses when trying to build Python 3.13.x.
> Their build system really would like to have pkg-config files. We have a
> workaround for 3.12.x but it doesn't work as-is for 3.13 and their build
> system is byzantine.
> 
> I have an alternative workaround which I think would be acceptable for
> ports (include local copies of pc files in the port and point pkg-config
> at them during configure/build) but I was wondering what anyone's
> thoughts are about including them in base. It would simplify things
> in ports, and we are providing pc files for a number of other libraries
> so there's some prior art.
> 
> Python just wants pc files for ncurses and panel but if we do install,
> I think it would be safer to use the same set as curses upstream:
> ncurses, panel, menu, form.

Agreed.

> The diff below uses a modified version of our usual generate_pkgconfig.sh
> script. I'm using a "don't really do anything" value for Cflags like we
> do for libssl etc (this is different from upstream who set -D_BSD_SOURCE
> -D_XOPEN_SOURCE=700 in theirs; that seems a step too far and broke at
> least one port in earlier tests). It's currently running through a ports
> bulk build.

Yes, I think that makes sense.  Unlike Linux, we offer everything by
default.  So for us -D_XOPEN_SOURCE=700 is basically downgrading POSIX
from 1003.1-2024 to 1003.1-2008 and as a consequence C17 to C99.  That
isn't very helpful as the code that uses ncurses might have different
opinions.

I'm not sure what the point is of adding -L/usr/lib and -I/usr/include
hen those are defaults anyway.  None of the Linux systems I looked at
(sample size 2) add a -I option to Cflags: and only one adds a -L
option.  But I guess we do this for the other .pc files in base and it
shouldn't hurt.  Shrug.


> Index: lib/libcurses/Makefile
> ===================================================================
> RCS file: /cvs/src/lib/libcurses/Makefile,v
> diff -u -p -r1.76 Makefile
> --- lib/libcurses/Makefile	8 Feb 2024 20:28:54 -0000	1.76
> +++ lib/libcurses/Makefile	18 Feb 2025 23:29:54 -0000
> @@ -73,11 +73,12 @@ MAN=	curs_add_wch.3 curs_add_wchstr.3 cu
>  GENERATED= codes.c comp_captab.c comp_userdefs.c expanded.c fallback.c \
>  	init_keytry.h keys.list lib_gen.c lib_keyname.c make_hash make_keys \
>  	names.c unctrl.c
> +PC_FILES= ncurses.pc
>  
>  CAPLIST	= ${.CURDIR}/Caps
>  USE_BIG_STRINGS	= 1
>  
> -CLEANFILES+= ${GENERATED} make_hash.d make_keys.d
> +CLEANFILES+= ${GENERATED} ${PC_FILES} make_hash.d make_keys.d
>  
>  BUILDFIRST = ${GENERATED}
>  
> @@ -143,10 +144,19 @@ codes.c: ${.CURDIR}/tinfo/MKcodes.awk
>  unctrl.c: ${.CURDIR}/base/MKunctrl.awk
>  	echo | ${AWK} -f ${.CURDIR}/base/MKunctrl.awk bigstrings=1 > ${.TARGET}
>  
> +all: ${PC_FILES}
> +
> +${PC_FILES}: ${.CURDIR}/../libcurses/curses.h ${.CURDIR}/../libcurses/ncurses_cfg.h
> +	/bin/sh ${.CURDIR}/generate_pkgconfig.sh -c ${.CURDIR} -o ${.OBJDIR}
> +
>  .include <bsd.own.mk>
>  
>  # Link libtermlib, libtermcap to libcurses so we don't break people's Makefiles
>  afterinstall:
> +.for p in ${PC_FILES}
> +	${INSTALL} ${INSTALL_COPY} -o root -g ${SHAREGRP} \
> +	    -m ${SHAREMODE} ${.OBJDIR}/$p ${DESTDIR}/usr/lib/pkgconfig/
> +.endfor
>  	-cd ${DESTDIR}${LIBDIR}; \
>  	for i in ${_LIBS}; do \
>  	    ln -f $$i `echo $$i | sed 's/curses/termlib/'`; \
> Index: lib/libcurses/generate_pkgconfig.sh
> ===================================================================
> RCS file: lib/libcurses/generate_pkgconfig.sh
> diff -N lib/libcurses/generate_pkgconfig.sh
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ lib/libcurses/generate_pkgconfig.sh	18 Feb 2025 23:29:54 -0000
> @@ -0,0 +1,81 @@
> +#!/bin/ksh
> +#
> +# $OpenBSD: generate_pkgconfig.sh,v 1.11 2022/02/04 16:42:15 tb Exp $
> +#
> +# Copyright (c) 2010,2011 Jasper Lievisse Adriaanse <jasper@openbsd.org>
> +#
> +# Permission to use, copy, modify, and distribute this software for any
> +# purpose with or without fee is hereby granted, provided that the above
> +# copyright notice and this permission notice appear in all copies.
> +#
> +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
> +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
> +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
> +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
> +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
> +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> +#
> +# Generate pkg-config files for ncurses.
> +
> +usage() {
> +	echo "usage: ${0##*/} -c current_directory -o obj_directory"
> +	exit 1
> +}
> +
> +curdir=
> +objdir=
> +while getopts "c:o:" flag; do
> +	case "$flag" in
> +		c)
> +			curdir=$OPTARG
> +			;;
> +		o)
> +			objdir=$OPTARG
> +			;;
> +		*)
> +			usage
> +			;;
> +	esac
> +done
> +
> +[ -n "${curdir}" ] || usage
> +if [ ! -d "${curdir}" ]; then
> +	echo "${0##*/}: ${curdir}: not found"
> +	exit 1
> +fi
> +[ -n "${objdir}" ] || usage
> +if [ ! -w "${objdir}" ]; then
> +	echo "${0##*/}: ${objdir}: not found or not writable"
> +	exit 1
> +fi
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_STRING[[:blank:]]+\"(.*)\".*/\1/p"
> +version_file=${curdir}/ncurses_cfg.h
> +lib_version=$(sed -nE ${version_re} ${version_file})
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_MAJOR[[:blank:]]+(.*)([[:blank:]].*)?/\1/p"
> +version_file=${curdir}/curses.h
> +abi_version=$(sed -nE ${version_re} ${version_file})
> +
> +# Put -I${includedir} into Cflags so configure script tests like
> +#   test -n "`pkg-config --cflags ncurses`"
> +# don't assume that ncurses isn't available.
> +
> +pc_file="${objdir}/ncurses.pc"
> +cat > ${pc_file} << __EOF__
> +prefix=/usr
> +exec_prefix=\${prefix}
> +libdir=\${exec_prefix}/lib
> +includedir=\${prefix}/include
> +abi_version=${abi_version}
> +major_version=${abi_version}
> +version=${lib_version}
> +
> +Name: ncurses
> +Description: ncurses library
> +Version: ${lib_version}
> +Requires.private:
> +Libs: -L\${libdir} -lncurses
> +Cflags: -I\${includedir}
> +__EOF__
> Index: lib/libform/Makefile
> ===================================================================
> RCS file: /cvs/src/lib/libform/Makefile,v
> diff -u -p -r1.17 Makefile
> --- lib/libform/Makefile	17 Oct 2023 09:52:10 -0000	1.17
> +++ lib/libform/Makefile	18 Feb 2025 23:29:54 -0000
> @@ -18,6 +18,8 @@ MAN=	form.3 form_cursor.3 form_data.3 fo
>  	form_hook.3 form_new.3 form_new_page.3 form_opts.3 form_page.3 \
>  	form_post.3 form_requestname.3 form_userptr.3 form_variables.3 \
>  	form_win.3
> +PC_FILES= form.pc
> +CLEANFILES+= ${PC_FILES}
>  
>  includes:
>  	@cd ${.CURDIR}; for i in ${HDRS}; do \
> @@ -25,9 +27,18 @@ includes:
>  	  ${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i \
>  	  ${DESTDIR}/usr/include; done
>  
> +all: ${PC_FILES}
> +
> +${PC_FILES}: ${.CURDIR}/../libcurses/curses.h ${.CURDIR}/../libcurses/ncurses_cfg.h
> +	/bin/sh ${.CURDIR}/generate_pkgconfig.sh -c ${.CURDIR} -o ${.OBJDIR}
> +
>  .include <bsd.own.mk>
>  
>  afterinstall:
> +.for p in ${PC_FILES}
> +	${INSTALL} ${INSTALL_COPY} -o root -g ${SHAREGRP} \
> +	    -m ${SHAREMODE} ${.OBJDIR}/$p ${DESTDIR}/usr/lib/pkgconfig/
> +.endfor
>  	-cd ${DESTDIR}${LIBDIR}; \
>  	for i in ${_LIBS}; do \
>  	    ln -f $$i `echo $$i | sed 's/form/formw/'`; \
> Index: lib/libform/generate_pkgconfig.sh
> ===================================================================
> RCS file: lib/libform/generate_pkgconfig.sh
> diff -N lib/libform/generate_pkgconfig.sh
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ lib/libform/generate_pkgconfig.sh	18 Feb 2025 23:29:54 -0000
> @@ -0,0 +1,82 @@
> +#!/bin/ksh
> +#
> +# $OpenBSD: generate_pkgconfig.sh,v 1.11 2022/02/04 16:42:15 tb Exp $
> +#
> +# Copyright (c) 2010,2011 Jasper Lievisse Adriaanse <jasper@openbsd.org>
> +#
> +# Permission to use, copy, modify, and distribute this software for any
> +# purpose with or without fee is hereby granted, provided that the above
> +# copyright notice and this permission notice appear in all copies.
> +#
> +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
> +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
> +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
> +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
> +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
> +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> +#
> +# Generate pkg-config files for libform.
> +
> +usage() {
> +	echo "usage: ${0##*/} -c current_directory -o obj_directory"
> +	exit 1
> +}
> +
> +curdir=
> +objdir=
> +while getopts "c:o:" flag; do
> +	case "$flag" in
> +		c)
> +			curdir=$OPTARG
> +			;;
> +		o)
> +			objdir=$OPTARG
> +			;;
> +		*)
> +			usage
> +			;;
> +	esac
> +done
> +
> +[ -n "${curdir}" ] || usage
> +if [ ! -d "${curdir}" ]; then
> +	echo "${0##*/}: ${curdir}: not found"
> +	exit 1
> +fi
> +[ -n "${objdir}" ] || usage
> +if [ ! -w "${objdir}" ]; then
> +	echo "${0##*/}: ${objdir}: not found or not writable"
> +	exit 1
> +fi
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_STRING[[:blank:]]+\"(.*)\".*/\1/p"
> +version_file=${curdir}/../libcurses/ncurses_cfg.h
> +lib_version=$(sed -nE ${version_re} ${version_file})
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_MAJOR[[:blank:]]+(.*)([[:blank:]].*)?/\1/p"
> +version_file=${curdir}/../libcurses/curses.h
> +abi_version=$(sed -nE ${version_re} ${version_file})
> +
> +# Put -I${includedir} into Cflags so configure script tests like
> +#   test -n "`pkg-config --cflags form`"
> +# don't assume that libform isn't available.
> +
> +pc_file="${objdir}/form.pc"
> +cat > ${pc_file} << __EOF__
> +prefix=/usr
> +exec_prefix=\${prefix}
> +libdir=\${exec_prefix}/lib
> +includedir=\${prefix}/include
> +abi_version=${abi_version}
> +major_version=${abi_version}
> +version=${lib_version}
> +
> +Name: form
> +Description: ncurses add-on library
> +Version: ${lib_version}
> +Requires.private: ncurses
> +Libs: -L\${libdir} -lform
> +Libs.private:
> +Cflags: -I\${includedir}
> +__EOF__
> Index: lib/libmenu/Makefile
> ===================================================================
> RCS file: /cvs/src/lib/libmenu/Makefile,v
> diff -u -p -r1.20 Makefile
> --- lib/libmenu/Makefile	17 Oct 2023 09:52:10 -0000	1.20
> +++ lib/libmenu/Makefile	18 Feb 2025 23:29:54 -0000
> @@ -13,6 +13,8 @@ MAN=	menu.3 menu_attributes.3 menu_curso
>  	menu_pattern.3 menu_post.3 menu_requestname.3 menu_spacing.3 \
>  	menu_userptr.3 menu_win.3 mitem_current.3 mitem_name.3 mitem_new.3 \
>  	mitem_opts.3 mitem_userptr.3 mitem_value.3 mitem_visible.3
> +PC_FILES= menu.pc
> +CLEANFILES+= ${PC_FILES}
>  
>  includes:
>  	@cd ${.CURDIR}; for i in ${HDRS}; do \
> @@ -20,9 +22,18 @@ includes:
>  	  ${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i \
>  	  ${DESTDIR}/usr/include; done
>  
> +all: ${PC_FILES}
> +
> +${PC_FILES}: ${.CURDIR}/../libcurses/curses.h ${.CURDIR}/../libcurses/ncurses_cfg.h
> +	/bin/sh ${.CURDIR}/generate_pkgconfig.sh -c ${.CURDIR} -o ${.OBJDIR}
> +
>  .include <bsd.own.mk>
>  
>  afterinstall:
> +.for p in ${PC_FILES}
> +	${INSTALL} ${INSTALL_COPY} -o root -g ${SHAREGRP} \
> +	    -m ${SHAREMODE} ${.OBJDIR}/$p ${DESTDIR}/usr/lib/pkgconfig/
> +.endfor
>  	-cd ${DESTDIR}${LIBDIR}; \
>  	for i in ${_LIBS}; do \
>  	    ln -f $$i `echo $$i | sed 's/menu/menuw/'`; \
> Index: lib/libmenu/generate_pkgconfig.sh
> ===================================================================
> RCS file: lib/libmenu/generate_pkgconfig.sh
> diff -N lib/libmenu/generate_pkgconfig.sh
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ lib/libmenu/generate_pkgconfig.sh	18 Feb 2025 23:29:54 -0000
> @@ -0,0 +1,82 @@
> +#!/bin/ksh
> +#
> +# $OpenBSD: generate_pkgconfig.sh,v 1.11 2022/02/04 16:42:15 tb Exp $
> +#
> +# Copyright (c) 2010,2011 Jasper Lievisse Adriaanse <jasper@openbsd.org>
> +#
> +# Permission to use, copy, modify, and distribute this software for any
> +# purpose with or without fee is hereby granted, provided that the above
> +# copyright notice and this permission notice appear in all copies.
> +#
> +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
> +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
> +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
> +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
> +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
> +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> +#
> +# Generate pkg-config files for libmenu.
> +
> +usage() {
> +	echo "usage: ${0##*/} -c current_directory -o obj_directory"
> +	exit 1
> +}
> +
> +curdir=
> +objdir=
> +while getopts "c:o:" flag; do
> +	case "$flag" in
> +		c)
> +			curdir=$OPTARG
> +			;;
> +		o)
> +			objdir=$OPTARG
> +			;;
> +		*)
> +			usage
> +			;;
> +	esac
> +done
> +
> +[ -n "${curdir}" ] || usage
> +if [ ! -d "${curdir}" ]; then
> +	echo "${0##*/}: ${curdir}: not found"
> +	exit 1
> +fi
> +[ -n "${objdir}" ] || usage
> +if [ ! -w "${objdir}" ]; then
> +	echo "${0##*/}: ${objdir}: not found or not writable"
> +	exit 1
> +fi
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_STRING[[:blank:]]+\"(.*)\".*/\1/p"
> +version_file=${curdir}/../libcurses/ncurses_cfg.h
> +lib_version=$(sed -nE ${version_re} ${version_file})
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_MAJOR[[:blank:]]+(.*)([[:blank:]].*)?/\1/p"
> +version_file=${curdir}/../libcurses/curses.h
> +abi_version=$(sed -nE ${version_re} ${version_file})
> +
> +# Put -I${includedir} into Cflags so configure script tests like
> +#   test -n "`pkg-config --cflags menu`"
> +# don't assume that libmenu isn't available.
> +
> +pc_file="${objdir}/menu.pc"
> +cat > ${pc_file} << __EOF__
> +prefix=/usr
> +exec_prefix=\${prefix}
> +libdir=\${exec_prefix}/lib
> +includedir=\${prefix}/include
> +abi_version=${abi_version}
> +major_version=${abi_version}
> +version=${lib_version}
> +
> +Name: menu
> +Description: ncurses add-on library
> +Version: ${lib_version}
> +Requires.private: ncurses
> +Libs: -L\${libdir} -lmenu
> +Libs.private:
> +Cflags: -I\${includedir}
> +__EOF__
> Index: lib/libpanel/Makefile
> ===================================================================
> RCS file: /cvs/src/lib/libpanel/Makefile,v
> diff -u -p -r1.13 Makefile
> --- lib/libpanel/Makefile	17 Oct 2023 09:52:10 -0000	1.13
> +++ lib/libpanel/Makefile	18 Feb 2025 23:29:54 -0000
> @@ -7,6 +7,8 @@ SRCS=	p_above.c p_below.c p_bottom.c p_d
>  HDRS=	panel.h
>  CFLAGS+=-I${.CURDIR}/../libcurses -D_XOPEN_SOURCE_EXTENDED -DNDEBUG
>  MAN=	panel.3
> +PC_FILES= panel.pc
> +CLEANFILES+= ${PC_FILES}
>  
>  includes:
>  	@cd ${.CURDIR}; for i in ${HDRS}; do \
> @@ -14,9 +16,18 @@ includes:
>  	  ${INSTALL} ${INSTALL_COPY} -m 444 -o $(BINOWN) -g $(BINGRP) $$i \
>  	  ${DESTDIR}/usr/include; done
>  
> +all: ${PC_FILES}
> +
> +${PC_FILES}: ${.CURDIR}/../libcurses/curses.h ${.CURDIR}/../libcurses/ncurses_cfg.h
> +	/bin/sh ${.CURDIR}/generate_pkgconfig.sh -c ${.CURDIR} -o ${.OBJDIR}
> +
>  .include <bsd.own.mk>
>  
>  afterinstall:
> +.for p in ${PC_FILES}
> +	${INSTALL} ${INSTALL_COPY} -o root -g ${SHAREGRP} \
> +	    -m ${SHAREMODE} ${.OBJDIR}/$p ${DESTDIR}/usr/lib/pkgconfig/
> +.endfor
>  	-cd ${DESTDIR}${LIBDIR}; \
>  	for i in ${_LIBS}; do \
>  	    ln -f $$i `echo $$i | sed 's/panel/panelw/'`; \
> Index: lib/libpanel/generate_pkgconfig.sh
> ===================================================================
> RCS file: lib/libpanel/generate_pkgconfig.sh
> diff -N lib/libpanel/generate_pkgconfig.sh
> --- /dev/null	1 Jan 1970 00:00:00 -0000
> +++ lib/libpanel/generate_pkgconfig.sh	18 Feb 2025 23:29:54 -0000
> @@ -0,0 +1,82 @@
> +#!/bin/ksh
> +#
> +# $OpenBSD: generate_pkgconfig.sh,v 1.11 2022/02/04 16:42:15 tb Exp $
> +#
> +# Copyright (c) 2010,2011 Jasper Lievisse Adriaanse <jasper@openbsd.org>
> +#
> +# Permission to use, copy, modify, and distribute this software for any
> +# purpose with or without fee is hereby granted, provided that the above
> +# copyright notice and this permission notice appear in all copies.
> +#
> +# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
> +# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
> +# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
> +# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
> +# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
> +# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
> +# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
> +#
> +# Generate pkg-config files for libpanel.
> +
> +usage() {
> +	echo "usage: ${0##*/} -c current_directory -o obj_directory"
> +	exit 1
> +}
> +
> +curdir=
> +objdir=
> +while getopts "c:o:" flag; do
> +	case "$flag" in
> +		c)
> +			curdir=$OPTARG
> +			;;
> +		o)
> +			objdir=$OPTARG
> +			;;
> +		*)
> +			usage
> +			;;
> +	esac
> +done
> +
> +[ -n "${curdir}" ] || usage
> +if [ ! -d "${curdir}" ]; then
> +	echo "${0##*/}: ${curdir}: not found"
> +	exit 1
> +fi
> +[ -n "${objdir}" ] || usage
> +if [ ! -w "${objdir}" ]; then
> +	echo "${0##*/}: ${objdir}: not found or not writable"
> +	exit 1
> +fi
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_STRING[[:blank:]]+\"(.*)\".*/\1/p"
> +version_file=${curdir}/../libcurses/ncurses_cfg.h
> +lib_version=$(sed -nE ${version_re} ${version_file})
> +
> +version_re="s/^#define[[:blank:]]+NCURSES_VERSION_MAJOR[[:blank:]]+(.*)([[:blank:]].*)?/\1/p"
> +version_file=${curdir}/../libcurses/curses.h
> +abi_version=$(sed -nE ${version_re} ${version_file})
> +
> +# Put -I${includedir} into Cflags so configure script tests like
> +#   test -n "`pkg-config --cflags panel`"
> +# don't assume that libpanel isn't available.
> +
> +pc_file="${objdir}/panel.pc"
> +cat > ${pc_file} << __EOF__
> +prefix=/usr
> +exec_prefix=\${prefix}
> +libdir=\${exec_prefix}/lib
> +includedir=\${prefix}/include
> +abi_version=${abi_version}
> +major_version=${abi_version}
> +version=${lib_version}
> +
> +Name: panel
> +Description: ncurses add-on library
> +Version: ${lib_version}
> +Requires.private: ncurses
> +Libs: -L\${libdir} -lpanel
> +Libs.private:
> +Cflags: -I\${includedir}
> +__EOF__
> Index: distrib/sets/lists/base/mi
> ===================================================================
> RCS file: /cvs/src/distrib/sets/lists/base/mi,v
> diff -u -p -r1.1155 mi
> --- distrib/sets/lists/base/mi	5 Feb 2025 14:12:26 -0000	1.1155
> +++ distrib/sets/lists/base/mi	18 Feb 2025 23:29:54 -0000
> @@ -790,11 +790,15 @@
>  ./usr/lib/locate/src.db
>  ./usr/lib/pkgconfig
>  ./usr/lib/pkgconfig/expat.pc
> +./usr/lib/pkgconfig/form.pc
>  ./usr/lib/pkgconfig/fuse.pc
>  ./usr/lib/pkgconfig/libcrypto.pc
>  ./usr/lib/pkgconfig/libelf.pc
>  ./usr/lib/pkgconfig/libssl.pc
> +./usr/lib/pkgconfig/menu.pc
> +./usr/lib/pkgconfig/ncurses.pc
>  ./usr/lib/pkgconfig/openssl.pc
> +./usr/lib/pkgconfig/panel.pc
>  ./usr/lib/pkgconfig/sndio.pc
>  ./usr/lib/pkgconfig/zlib.pc
>  ./usr/lib/rcrt0.o
> 
>