pkgconf: import into the base system

This introduces the following option:

* MK_PKGCONF: determines if pkgconf and bomtool should be built

The objective is to allow the creation of SBOM information while
building FreeBSD's src tree. The build system cannot rely on the
presence of bomtool (and eventually also spdxtool) in the build
environment, except for having it as part of the src tree directly.

The framework implementing the generation of SBOM files is under review
in D56474.

This will also help simplifying the build, with the introduction of
another framework relying on the availability of pkgconf.

Sponsored by:		Alpha-Omega, The FreeBSD Foundation
Reviewed by:		bapt, philip
Approved by:		philip (mentor)
Differential Revision:	https://reviews.freebsd.org/D56404

etc/mtree/BSD.usr.dist

@@ -26,6 +26,8 @@
                     ..
                 ..
             ..
+            pkgconf           tags=package=pkgconf-dev
+            ..
             samplerate        tags=package=sound-dev
             ..
             sqlite3           tags=package=libsqlite3-dev

lib/Makefile

@@ -188,6 +188,7 @@ SUBDIR.${MK_ICONV}+=	libiconv_modules
 SUBDIR.${MK_KERBEROS}+=	libcom_err
 .endif
 SUBDIR.${MK_LDNS}+=	libldns
+SUBDIR.${MK_PKGCONF}+=	libpkgconf
 SUBDIR.${MK_STATS}+=	libstats
 
 # The libraries under libclang_rt can only be built by clang.

lib/libpkgconf/Makefile

@@ -0,0 +1,27 @@
+PKGCONFDIR=	${SRCTOP}/contrib/pkgconf
+
+PACKAGE=	pkgconf
+PRIVATELIB=	yes
+LIB=		pkgconf
+MAN=		pkg.m4.7
+MANNODEV=	pc.5
+MANNODEV+=	pkgconf-personality.5
+
+SRCS=		audit.c buffer.c cache.c client.c pkg.c bsdstubs.c fragment.c
+SRCS+=		argvsplit.c fileio.c tuple.c dependency.c queue.c
+SRCS+=		path.c personality.c parser.c
+INCS=		bsdstubs.h iter.h libpkgconf-api.h libpkgconf.h stdinc.h
+
+CFLAGS+=	-Wno-error=cast-align
+CFLAGS+=	-Wno-error=cast-qual
+CFLAGS+=	-Wno-error=incompatible-pointer-types-discards-qualifiers
+CFLAGS+=	-DPERSONALITY_PATH=\"/usr/share/pkgconfig/personality.d:/etc/pkgconfig/personality.d:${LOCALBASE:U}/etc/pkgconfig/personality.d\"
+CFLAGS+=	-DPKG_DEFAULT_PATH=\"${LOCALBASE:U}/libdata/pkgconfig:/usr/libdata/pkgconfig:${LOCALBASE:U}/share/pkgconfig\"
+CFLAGS+=	-DSYSTEM_INCLUDEDIR=\"/usr/include\"
+CFLAGS+=	-DSYSTEM_LIBDIR=\"/usr/lib\"
+CFLAGS+=	-I${SRCTOP}/lib/libpkgconf -I${PKGCONFDIR}
+
+.PATH:		${PKGCONFDIR}/libpkgconf
+.PATH:		${PKGCONFDIR}/man
+
+.include <bsd.lib.mk>

lib/libpkgconf/libpkgconf/config.h

@@ -0,0 +1,77 @@
+/* libpkgconf/config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define to 1 if you have the `strlcat' function. */
+#define HAVE_STRLCAT 1
+
+/* Define to 1 if you have the `strlcpy' function. */
+#define HAVE_STRLCPY 1
+
+/* Define to 1 if you have the `strndup' function. */
+#define HAVE_STRNDUP 1
+
+/* Define to 1 if you have the `reallocarray' function. */
+#define HAVE_REALLOCARRAY 1
+
+/* Define to 1 if you have the `strlcat' function. */
+#define HAVE_DECL_STRLCAT 1
+
+/* Define to 1 if you have the `strlcpy' function. */
+#define HAVE_DECL_STRLCPY 1
+
+/* Define to 1 if you have the `strndup' function. */
+#define HAVE_DECL_STRNDUP 1
+
+/* Define to 1 if you have the `reallocarray' function. */
+#define HAVE_DECL_REALLOCARRAY 1
+
+/* Define to 1 if you have the `pledge' function. */
+/* #undef HAVE_DECL_PLEDGE */
+
+/* Define to 1 if you have the `unveil' function. */
+/* #undef HAVE_DECL_UNVEIL */
+
+/* Name of package */
+#define PACKAGE "pkgconf"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "https://github.com/pkgconf/pkgconf/issues/new"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "pkgconf"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "pkgconf 2.5.1"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "pkgconf"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "2.5.1"
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Version number of package */
+#define VERSION "2.5.1"
+
+/* Enable large inode numbers on Mac OS X 10.5.  */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+/* #undef _FILE_OFFSET_BITS */
+
+/* Define for large files, on AIX-style hosts. */
+/* #undef _LARGE_FILES */
+
+/* Number of bits in time_t, on hosts where this is settable. */
+/* #undef _TIME_BITS */
+
+/* Enable Solaris extensions. */
+#ifndef __EXTENSIONS__
+# define __EXTENSIONS__ 1
+#endif

share/mk/bsd.libnames.mk

@@ -137,6 +137,7 @@ LIBPANEL?=	${LIBDESTDIR}${LIBDIR_BASE}/libpanel.a
 LIBPANELW?=	${LIBDESTDIR}${LIBDIR_BASE}/libpanelw.a
 LIBPCAP?=	${LIBDESTDIR}${LIBDIR_BASE}/libpcap.a
 LIBPJDLOG?=	${LIBDESTDIR}${LIBDIR_BASE}/libpjdlog.a
+LIBPKGCONF?=	${LIBDESTDIR}${LIBDIR_BASE}/libpkgconf.a
 LIBPMC?=	${LIBDESTDIR}${LIBDIR_BASE}/libpmc.a
 LIBPROC?=	${LIBDESTDIR}${LIBDIR_BASE}/libproc.a
 LIBPROCSTAT?=	${LIBDESTDIR}${LIBDIR_BASE}/libprocstat.a

share/mk/src.libnames.mk

@@ -30,6 +30,7 @@ _PRIVATELIBS=	\
 		kldelf \
 		ldns \
 		opencsd \
+		pkgconf \
 		samplerate \
 		sqlite3 \
 		ssh \

share/mk/src.opts.mk

@@ -157,6 +157,7 @@ __DEFAULT_YES_OPTIONS = \
     PAM \
     PF \
     PKGBOOTSTRAP \
+    PKGCONF \
     PKGSERVE \
     PMC \
     PPP \

tools/build/mk/OptionalObsoleteFiles.inc

@@ -6911,6 +6911,24 @@ OLD_FILES+=usr/share/snmp/defs/pf_tree.def
 OLD_FILES+=usr/share/snmp/mibs/BEGEMOT-PF-MIB.txt
 .endif
 
+.if ${MK_PKGCONF} == no
+OLD_FILES+=usr/bin/bomtool
+OLD_FILES+=usr/bin/pkgconf
+OLD_FILES+=usr/include/pkgconf/bsdstubs.h
+OLD_FILES+=usr/include/pkgconf/iter.h
+OLD_FILES+=usr/include/pkgconf/libpkgconf-api.h
+OLD_FILES+=usr/include/pkgconf/libpkgconf.h
+OLD_FILES+=usr/include/pkgconf/stdinc.h
+OLD_DIRS+=usr/include/pkgconf
+OLD_LIBS+=usr/lib/libprivatepkgconf.so
+OLD_LIBS+=usr/lib/libprivatepkgconf.so.5
+OLD_FILES+=usr/share/man/man1/bomtool.1.gz
+OLD_FILES+=usr/share/man/man1/pkgconf.1.gz
+OLD_FILES+=usr/share/man/man5/pc.5.gz
+OLD_FILES+=usr/share/man/man5/pkgconf-personality.5.gz
+OLD_FILES+=usr/share/man/man7/pkg.m4.7.gz
+.endif
+
 .if ${MK_PKGSERVE} == no
 OLD_FILES+=usr/libexec/pkg-serve
 OLD_FILES+=usr/share/man/man8/pkg-serve.8.gz

tools/build/options/WITHOUT_PKGCONF

@@ -0,0 +1 @@
+Do not build the pkgconf binaries nor the libpkgconf library.

tools/build/options/WITH_PKGCONF

@@ -0,0 +1,5 @@
+Build the pkgconf binaries,
+.Xr pkgconf 1 ,
+and
+.Xr bomtool 1 ,
+and libpkgconf library (private).

usr.bin/Makefile

@@ -234,6 +234,8 @@ SUBDIR.${MK_NIS}+=	ypcat
 SUBDIR.${MK_NIS}+=	ypmatch
 SUBDIR.${MK_NIS}+=	ypwhich
 SUBDIR.${MK_OPENSSH}+=	ssh-copy-id
+SUBDIR.${MK_PKGCONF}+=	bomtool
+SUBDIR.${MK_PKGCONF}+=	pkgconf
 SUBDIR.${MK_QUOTAS}+=	quota
 SUBDIR.${MK_SENDMAIL}+=	vacation
 SUBDIR.${MK_SOUND}+=	beep

usr.bin/bomtool/Makefile

@@ -0,0 +1,20 @@
+PACKAGE=	pkgconf
+
+PROG=		bomtool
+SRCS=		main.c
+SRCS+=		getopt_long.c
+
+LIBADD=		pkgconf
+
+PKGCONFDIR=	${SRCTOP}/contrib/pkgconf
+
+CFLAGS+=	-Wno-error=missing-variable-declarations
+CFLAGS+=	-Wno-error=incompatible-pointer-types-discards-qualifiers
+CFLAGS+=	-Wno-error=cast-qual
+CFLAGS+=	-I${SRCTOP}/lib/libpkgconf -I${PKGCONFDIR} -I${PKGCONFDIR}/cli
+
+.PATH:		${PKGCONFDIR}/cli/bomtool
+.PATH:		${PKGCONFDIR}/cli
+.PATH:		${PKGCONFDIR}/man
+
+.include <bsd.prog.mk>

usr.bin/pkgconf/Makefile

@@ -0,0 +1,23 @@
+PACKAGE=	pkgconf
+
+PROG=		pkgconf
+SRCS=		main.c
+SRCS+=		getopt_long.c
+SRCS+=		renderer-msvc.c
+
+LIBADD=		pkgconf
+
+SYMLINKS=	pkgconf ${BINDIR}/pkg-config
+
+PKGCONFDIR=	${SRCTOP}/contrib/pkgconf
+
+CFLAGS+=	-Wno-error=missing-variable-declarations
+CFLAGS+=	-Wno-error=incompatible-pointer-types-discards-qualifiers
+CFLAGS+=	-Wno-error=cast-qual
+CFLAGS+=	-DSYSTEM_INCLUDEDIR=\"/usr/include\" -DSYSTEM_LIBDIR=\"/usr/lib\"
+CFLAGS+=	-I${SRCTOP}/lib/libpkgconf -I${PKGCONFDIR}
+
+.PATH:		${PKGCONFDIR}/cli
+.PATH:		${PKGCONFDIR}/man
+
+.include <bsd.prog.mk>