# $NetBSD: builtin.mk,v 1.10 2022/12/02 09:17:59 adam Exp $

BUILTIN_PKG:=	xz

BUILTIN_FIND_HEADERS_VAR:=		H_LZMA H_LZMA_VERSION
BUILTIN_FIND_HEADERS.H_LZMA=		lzma.h
BUILTIN_FIND_HEADERS.H_LZMA_VERSION=	lzma/version.h
BUILTIN_FIND_GREP.H_LZMA=		LZMA_

.include "../../mk/buildlink3/bsd.builtin.mk"

###
### Determine if there is a built-in implementation of the package and
### set IS_BUILTIN.<pkg> appropriately ("yes" or "no").
###
.if !defined(IS_BUILTIN.xz)
IS_BUILTIN.xz=	no
.  if empty(H_LZMA:M__nonexistent__) && empty(H_LZMA:M${LOCALBASE}/*)
IS_BUILTIN.xz=	yes
.  endif
.endif
MAKEVARS+=	IS_BUILTIN.xz

###
### If there is a built-in implementation, then set BUILTIN_PKG.<pkg> to
### a package name to represent the built-in package.
###
.if !defined(BUILTIN_PKG.xz) && ${IS_BUILTIN.xz:tl} == yes
BUILTIN_VERSION.xz!=							\
	${AWK} 'BEGIN { M = "0" }					\
		/\#define[ 	]+LZMA_VERSION_MAJOR/ { M = $$3 }	\
		/\#define[ 	]+LZMA_VERSION_MINOR/ { m = "."$$3 }	\
		/\#define[ 	]+LZMA_VERSION_PATCH/ { p = "."$$3 }	\
		/\#define[ 	]+LZMA_VERSION_STABILITY[ 	]+/ { 	\
			if (split($$3, ss, /_/) == 4 && ss[4] != "STABLE") { \
				s = tolower(ss[4])			\
			}						\
		}							\
		END { printf "%s%s%s%s\n", M, m, p, s}			\
	' ${H_LZMA_VERSION:Q}

BUILTIN_PKG.xz=	xz-${BUILTIN_VERSION.xz}
.endif
MAKEVARS+=	BUILTIN_PKG.xz

###
### Determine whether we should use the built-in implementation if it
### exists, and set USE_BUILTIN.<pkg> appropriate ("yes" or "no").
###
.if !defined(USE_BUILTIN.xz)
.  if ${PREFER.xz} == "pkgsrc"
USE_BUILTIN.xz=	no
.  else
USE_BUILTIN.xz=	${IS_BUILTIN.xz}
.    if defined(BUILTIN_PKG.xz) && ${IS_BUILTIN.xz:tl} == yes
USE_BUILTIN.xz=	yes
.      for _dep_ in ${BUILDLINK_API_DEPENDS.xz}
.        if ${USE_BUILTIN.xz:tl} == yes
USE_BUILTIN.xz!=							\
	if ${PKG_ADMIN} pmatch ${_dep_:Q} ${BUILTIN_PKG.xz}; then	\
		${ECHO} yes;						\
	else								\
		${ECHO} no;						\
	fi
.        endif
.      endfor
.    endif
_INCOMPAT_XZ?=	# empty
.    for _pattern_ in ${_INCOMPAT_XZ} ${INCOMPAT_XZ}
.      if !empty(MACHINE_PLATFORM:M${_pattern_})
USE_BUILTIN.xz=	no
.      endif
.    endfor
.  endif  # PREFER.xz
.endif
MAKEVARS+=	USE_BUILTIN.xz

# if USE_XZ is defined, then force the use of a true xz
# implementation.
#
.if defined(USE_XZ)
.  if ${IS_BUILTIN.xz:tl} == no
USE_BUILTIN.xz=	no
.  endif
.endif

###
### The section below only applies if we are not including this file
### solely to determine whether a built-in implementation exists.
###

CHECK_BUILTIN.xz?=	no
.if ${CHECK_BUILTIN.xz:tl} == no

.  if ${USE_BUILTIN.xz:tl} == yes
BUILDLINK_FILES.xz+=	lib/pkgconfig/liblzma.pc
.  endif

# Fake pkg-config for builtin xz on NetBSD

.  if ${USE_BUILTIN.xz:tl} == yes
.    if !empty(USE_TOOLS:C/:.*//:Mpkg-config)
do-configure-pre-hook: override-liblzma-pkgconfig

BLKDIR_PKGCFG=		${BUILDLINK_DIR}/lib/pkgconfig
LIBLZMA_PKGCFGF=	liblzma.pc

override-liblzma-pkgconfig: override-message-liblzma-pkgconfig
override-message-liblzma-pkgconfig:
	@${STEP_MSG} "Generating pkg-config files for builtin xz package."

override-liblzma-pkgconfig:
	${RUN}								\
	dst=${BLKDIR_PKGCFG}/${LIBLZMA_PKGCFGF};			\
	src=${BUILDLINK_PREFIX.xz}/lib${LIBABISUFFIX}/pkgconfig/liblzma.pc; \
	if [ ! -f $${dst} ]; then					\
		if [ -f $${src} ]; then					\
			${ECHO_BUILDLINK_MSG} "Symlinking $${src}";	\
			${LN} -sf $${src} $${dst};			\
		else							\
			${MKDIR} ${BLKDIR_PKGCFG};			\
			{						\
			${ECHO} "prefix=${BUILDLINK_PREFIX.xz}";	\
			${ECHO} "exec_prefix=\$${prefix}";		\
			${ECHO} "libdir=\$${exec_prefix}/lib";		\
			${ECHO} "includedir=\$${prefix}/include";	\
			${ECHO} "";					\
			${ECHO} "Name: liblzma";			\
			${ECHO} "Description: Generic purpose data compression library";	\
			${ECHO} "Version: ${BUILTIN_VERSION.xz}";	\
			${ECHO} "Libs: ${COMPILER_RPATH_FLAG}\$${libdir} -L\$${libdir} -llzma";	\
			${ECHO} "Libs.private: -pthread";		\
			${ECHO} "Cflags: -I\$${includedir}";		\
			} > ${BLKDIR_PKGCFG}/${LIBLZMA_PKGCFGF};	\
		fi;							\
	fi
.    endif
.  endif

.endif	# CHECK_BUILTIN.xz