AC_PREREQ([2.63])

# Making releases:
#   FLATPAK_MICRO_VERSION += 1;
#   FLATPAK_INTERFACE_AGE += 1;
#   FLATPAK_BINARY_AGE += 1;
# if any functions have been added, set FLATPAK_INTERFACE_AGE to 0.
# if backwards compatibility has been broken,
# set FLATPAK_BINARY_AGE and FLATPAK_INTERFACE_AGE to 0.
#
# in easier to understand terms:
#
# on the stable branch, interface age == micro
# on the unstable (ie master), interface age = 0

m4_define([flatpak_major_version], [0])
m4_define([flatpak_minor_version], [9])
m4_define([flatpak_micro_version], [8])
m4_define([flatpak_interface_age], [8])
m4_define([flatpak_binary_age],
          [m4_eval(10000 * flatpak_major_version + 100 * flatpak_minor_version + flatpak_micro_version)])
m4_define([flatpak_version],
          [flatpak_major_version.flatpak_minor_version.flatpak_micro_version])

AC_INIT([flatpak-builder],
        [flatpak_version],
        [https://github.com/flatpak/flatpak/issues],
        [flatpak],
        [http://flatpak.org/])

GLIB_REQS=2.44
OSTREE_REQS=2017.10

AC_USE_SYSTEM_EXTENSIONS
AC_SYS_LARGEFILE

AC_PROG_CC
AM_PROG_CC_C_O
AC_DISABLE_STATIC

LT_PREREQ([2.2.6])
LT_INIT([disable-static])

AC_CONFIG_SRCDIR([src/builder-main.c])
AC_CONFIG_HEADERS([config.h])
AC_CONFIG_MACRO_DIR([m4])
AM_INIT_AUTOMAKE([1.13.4 no-define no-dist-gzip dist-xz tar-ustar foreign subdir-objects])
AC_PROG_SED

AM_GNU_GETTEXT([external])
AM_GNU_GETTEXT_VERSION([0.18.2])
AC_DEFINE_UNQUOTED(GETTEXT_PACKAGE, "$PACKAGE", [gettext domain])

# Enable silent rules is available
AM_SILENT_RULES([yes])
AM_MAINTAINER_MODE([enable])

dnl This list is shared with https://github.com/ostreedev/ostree
CC_CHECK_FLAGS_APPEND([WARN_CFLAGS], [CFLAGS], [\
-pipe \
-Wall \
-Werror=empty-body \
-Werror=strict-prototypes \
-Werror=missing-prototypes \
-Werror=implicit-function-declaration \
"-Werror=format=2 -Werror=format-security -Werror=format-nonliteral" \
-Werror=pointer-arith -Werror=init-self \
-Werror=missing-declarations \
-Werror=return-type \
-Werror=overflow \
-Werror=int-conversion \
-Werror=parenthesis \
-Werror=incompatible-pointer-types \
-Werror=misleading-indentation \
-Werror=missing-include-dirs \
])
AC_SUBST(WARN_CFLAGS)

AX_VALGRIND_CHECK

PKG_PROG_PKG_CONFIG([0.24])

AC_CHECK_FUNCS(fdwalk)
AC_CHECK_HEADER([sys/xattr.h], [], AC_MSG_ERROR([You must have sys/xattr.h from glibc]))
AC_CHECK_HEADER([sys/capability.h], have_caps=yes, AC_MSG_ERROR([sys/capability.h header not found]))

AC_SUBST([GLIB_MKENUMS], [`$PKG_CONFIG --variable glib_mkenums glib-2.0`])
AC_SUBST([GLIB_COMPILE_RESOURCES], [`$PKG_CONFIG --variable glib_compile_resources gio-2.0`])
AC_SUBST([GDBUS_CODEGEN], [`$PKG_CONFIG --variable gdbus_codegen gio-2.0`])

PKG_CHECK_MODULES(BASE, [glib-2.0 >= $GLIB_REQS gio-2.0 gio-unix-2.0 ])
PKG_CHECK_MODULES(SOUP, [libsoup-2.4])
PKG_CHECK_MODULES(OSTREE, [ostree-1 >= $OSTREE_REQS])
PKG_CHECK_MODULES(JSON, [json-glib-1.0])

dnl ************************
dnl *** check for libelf ***
dnl ************************
PKG_CHECK_MODULES([LIBELF], [libelf >= 0.8.12], [have_libelf=yes], [have_libelf=maybe])
AS_IF([ test $have_libelf = maybe ], [
  save_LIBS=$LIBS
  AC_CHECK_LIB([elf], [elf_begin], [:], [have_libelf=no])
  AC_CHECK_LIB([elf], [elf_getshdrstrndx], [:], [have_libelf=no])
  AC_CHECK_LIB([elf], [elf_getshdrnum], [:], [have_libelf=no])
  AC_CHECK_HEADER([libelf.h], [:], [have_libelf=no])
  LIBS=$save_LIBS

  if test $have_libelf != no; then
    LIBELF_LIBS=-lelf
    have_libelf=yes
  fi
])

if test x$have_libelf != xyes; then
  AC_MSG_ERROR([libelf not found])
fi

dnl This only checks for the header, not the library.
AC_ARG_WITH([dwarf-header],
            [AS_HELP_STRING([--with-dwarf-header],
                            [path containing dwarf.h])],
            [AS_IF([test "x$with_dwarf_header" = "xno"],
                   [AC_MSG_WARN([either a path containing dwarf.h must be
provided, or it will be searched for in includedir])])],
            [with_dwarf_header=yes])

# We need to check these exist, because otherwise -Werror=missing-include-dirs errors out
LIBDWARF_INCLUDES=
if test -d $(eval echo \"$includedir\")/libdwarf; then
   LIBDWARF_INCLUDES="$LIBDWARF_INCLUDES -I$(eval echo \"$includedir\")/libdwarf"
fi
if test -d /usr/include/libdwarf; then
   LIBDWARF_INCLUDES="$LIBDWARF_INCLUDES -I/usr/include/libdwarf"
fi

AS_IF([test "x$with_dwarf_header" = "xyes"],
      [CPPFLAGS="$CPPFLAGS $LIBDWARF_INCLUDES"
       AC_CHECK_HEADER([dwarf.h])
       AS_IF([test "x$ac_cv_header_dwarf_h" != "xyes"],
             [AC_MSG_ERROR([dwarf.h is required but was not found; locate it using --with-dwarf-header=/path/containing/header])])],
      [CPPFLAGS="$CPPFLAGS -I$with_dwarf_header"
       AC_CHECK_HEADER([dwarf.h])
       AS_IF([test "x$ac_cv_header_dwarf_h" != "xyes"],
             [AC_MSG_ERROR([dwarf.h is required but was not found])])])

AC_ARG_ENABLE(documentation,
              AC_HELP_STRING([--enable-documentation], [Build documentation]),,
              enable_documentation=yes)
if test x$enable_documentation = xyes; then
   AC_PATH_PROG([XSLTPROC], [xsltproc])
   if test x$XSLTPROC = x; then
      AC_MSG_ERROR([xsltproc is required to build documentation])
   fi

  dnl check for DocBook DTD in the local catalog
  JH_CHECK_XML_CATALOG([-//OASIS//DTD DocBook XML V4.1.2//EN],
     [DocBook XML DTD V4.1.2], [have_docbook_dtd=yes], [have_docbook_dtd=no])
  if test "$have_docbook_dtd" != yes; then
    AC_MSG_ERROR([DocBook DTD is required for --enable-documentation])
  fi

  dnl check for DocBook XSL stylesheets in the local catalog
  JH_CHECK_XML_CATALOG([http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl],
     [DocBook XSL Stylesheets], [have_docbook_style=yes],[have_docbook_style=no])
  if test "$have_docbook_style" != yes; then
    AC_MSG_ERROR([DocBook XSL Stylesheets are required for --enable-documentation])
  fi
fi
AM_CONDITIONAL(BUILD_DOCUMENTATION, test x$enable_documentation = xyes)

GOBJECT_INTROSPECTION_CHECK([1.40.0])

# gtkdocize greps for ^GTK_DOC_CHECK, so we need to put it on its own line
m4_ifdef([GTK_DOC_CHECK], [
GTK_DOC_CHECK([1.20], [--flavour no-tmpl])

AC_ARG_ENABLE([gtk-doc-check],
              [AS_HELP_STRING([--enable-gtk-doc-check],
                              [Check completeness of documentation in 'make check'])],
    [],
    [enable_gtk_doc_check=no])
],[
enable_gtk_doc="disabled (no gtk-doc)"
enable_gtk_doc_check="disabled (no gtk-doc)"
AM_CONDITIONAL([ENABLE_GTK_DOC], [false])
])
AM_CONDITIONAL([ENABLE_GTK_DOC_CHECK], [test "x$enable_gtk_doc_check" = xyes])

AC_ARG_ENABLE(docbook-docs,
        [AS_HELP_STRING([--enable-docbook-docs],[build documentation (requires xmlto)])],
        enable_docbook_docs=$enableval, enable_docbook_docs=auto)
AC_PATH_PROG(XMLTO, xmlto, no)
AC_MSG_CHECKING([whether to build DocBook documentation])
if test x$XMLTO = xno ; then
        have_docbook=no
else
        have_docbook=yes
fi
if test x$enable_docbook_docs = xauto ; then
        if test x$have_docbook = xno ; then
                enable_docbook_docs=no
        else
                enable_docbook_docs=yes
        fi
fi
if test x$enable_docbook_docs = xyes; then
        if test x$have_docbook = xno; then
                AC_MSG_ERROR([Building DocBook docs explicitly required, but DocBook not found])
        fi
        AC_MSG_RESULT(yes)
else
        AC_MSG_RESULT(no)
fi
AM_CONDITIONAL(DOCBOOK_DOCS_ENABLED, test x$enable_docbook_docs = xyes)
AC_ARG_VAR([XMLTO],[Define/override the 'xmlto' location.])
AC_ARG_VAR([XMLTO_FLAGS],[Define/override 'xmlto' options, like '--skip-validation'.])

GLIB_TESTS

FLATPAK_MAJOR_VERSION=flatpak_major_version
FLATPAK_MINOR_VERSION=flatpak_minor_version
FLATPAK_MICRO_VERSION=flatpak_micro_version
FLATPAK_INTERFACE_AGE=flatpak_interface_age
FLATPAK_VERSION=flatpak_version
AC_SUBST(FLATPAK_MAJOR_VERSION)
AC_SUBST(FLATPAK_MINOR_VERSION)
AC_SUBST(FLATPAK_MICRO_VERSION)
AC_SUBST(FLATPAK_INTERFACE_AGE)
AC_SUBST(FLATPAK_VERSION)
AC_DEFINE_UNQUOTED([PACKAGE_MAJOR_VERSION], $FLATPAK_MAJOR_VERSION, [Major version])
AC_DEFINE_UNQUOTED([PACKAGE_MINOR_VERSION], $FLATPAK_MINOR_VERSION, [Minor version])
AC_DEFINE_UNQUOTED([PACKAGE_MICRO_VERSION], $FLATPAK_MICRO_VERSION, [Micro version])

# libtool versioning
#LT_RELEASE=$FLATPAK_MAJOR_VERSION.$FLATPAK_MINOR_VERSION
#LT_CURRENT=`expr $FLATPAK_MICRO_VERSION - $FLATPAK_INTERFACE_AGE`
#LT_REVISION=$FLATPAK_INTERFACE_AGE
#LT_AGE=`expr $FLATPAK_BINARY_AGE - $FLATPAK_INTERFACE_AGE`
#LT_CURRENT_MINUS_AGE=`expr $LT_CURRENT - $LT_AGE`

m4_define([lt_current], [m4_eval(10000 * flatpak_major_version +  100 * flatpak_minor_version + flatpak_micro_version - flatpak_interface_age)])
m4_define([lt_revision], [flatpak_interface_age])
m4_define([lt_age], [m4_eval(flatpak_binary_age - flatpak_interface_age)])
LT_VERSION_INFO="lt_current:lt_revision:lt_age"
LT_CURRENT_MINUS_AGE=m4_eval(lt_current - lt_age)
AC_SUBST(LT_VERSION_INFO)
AC_SUBST(LT_CURRENT_MINUS_AGE)

AC_CONFIG_FILES([
Makefile
doc/Makefile
doc/reference/Makefile
doc/flatpak-builder-docs.xml
])
AC_OUTPUT

if test x$BWRAP = xfalse ; then
  build_bwrap="yes"
else
  build_bwrap="no"
fi

echo ""
echo "          flatpak-builder $FLATPAK_VERSION"
echo "          ============================="
echo ""