dpkg/configure.in

dnl Process this file with autoconf to produce a configure script.

AC_PREREQ([2.12])

AC_INIT(include/dpkg.h.in)
AM_CONFIG_HEADER(config.h)

AC_CHECK_TOOL_PREFIX

AC_CHECK_TOOL(CC, gcc)
AC_PROG_CC
AC_CANONICAL_SYSTEM
AC_CHECK_TOOL_PREFIX

dnl tl_PROG_CXX
AC_PROG_CXX
AM_CONDITIONAL(HAVE_CPLUSPLUS, [test "$CXX" != ""])

AC_CHECK_TOOL(LD, ld, ld)

AM_INIT_AUTOMAKE(dpkg,[`sed -n '1s/dpkg (\([0-9.]\+\)).*/\1/p' ${srcdir}/debian/changelog`])
ACLOCAL="$ACLOCAL -I automake"
AC_MSG_CHECKING(dpkg version)
AC_MSG_RESULT($VERSION)

AC_PREFIX_DEFAULT(/usr)

dpkg_archset=''
AC_ARG_WITH(arch,
[  --with-arch=value	  set/override (Debian) architecture value (deprecated)],
[
 if test "x$with_arch" = x; then
  AC_MSG_ERROR(--with-arch requires an architecture name)
 fi
 dpkg_archset="${with_arch}"
 dpkg_tmp="`awk '$1 == "'$target_cpu'" { print $2 }' $srcdir/archtable`"
 if test "x$dpkg_tmp" = "x"; then
  AC_MSG_WARN([unable to find specified architecture $dpkg_archset in archtable])
 elif test "x$dpkg_tmp" != "x$dpkg_archset"; then
  AC_MSG_WARN([canonical architecture is $dpkg_tmp (from archtable)])
 fi
],[
 AC_MSG_CHECKING(system architecture)
 dpkg_archset="`awk '$1 == "'$target_cpu'" { print $2 }' $srcdir/archtable`"
 # Finish off
 if test "x$dpkg_archset" = "x"; then
  AC_MSG_ERROR(failed: use --with-arch= or --target=)
 fi
 AC_MSG_RESULT($dpkg_archset)
])

if test "x$dpkg_archset" != x
then
 AC_DEFINE_UNQUOTED(ARCHITECTURE, "${dpkg_archset}")
fi

if test "x${dpkg_archset}" = xi386; then
 AC_MSG_CHECKING(target i386 system/binary format)
 case "${target_os}" in
  linuxaout|linux-gnuaout)
   AC_MSG_RESULT(Linux a.out)
   dpkg_cc_binfmt=a.out
   ;;
  
  linuxcoff|linux-gnucoff)
   AC_MSG_RESULT(Linux COFF)
   dpkg_cc_binfmt=coff
   ;;
  
  linux|linuxelf|linux-gnu*)
   AC_MSG_RESULT(Linux ELF)
   dpkg_cc_binfmt=elf
   ;;
  
  *)
   AC_MSG_RESULT([other (${target_os})])
   dpkg_cc_binfmt=""
   ;;
 esac
 if test "x$dpkg_cc_binfmt" != "x"; then
  AC_DEFINE_UNQUOTED(ARCHBINFMT," $dpkg_cc_binfmt")
 fi
fi

AC_ARG_WITH(newdeb,
[  --with-newdeb           make dpkg-deb default to new archives],
[AC_DEFINE(BUILDOLDPKGFORMAT, 0)])
AC_ARG_WITH(olddeb,
[  --with-olddeb           make dpkg-deb default to old archives],
[AC_DEFINE(BUILDOLDPKGFORMAT, 1)])

dnl gettext

ALL_LINGUAS="cs en fr es ja_JP.ujis"
AM_GNU_GETTEXT

dnl Other stuff

AC_MSG_CHECKING(for /usr/bin/perl)
if test -f /usr/bin/perl
then
	AC_MSG_RESULT(yes)
	perlpath=/usr/bin/perl
	AC_SUBST(perlpath)
else
	AC_MSG_RESULT(no)
	AC_PATH_PROG(perlpath,perl)
fi

AC_STDC_HEADERS
AC_PROG_INSTALL
AM_PROG_LIBTOOL
dnl Default in case EMACS == no
lispdir="\$(datadir)/emacs/site-lisp"
AM_PATH_LISPDIR
AC_MODE_T
AC_PID_T
AC_SIZE_T
AC_VPRINTF
AC_C_CONST
AC_C_BIGENDIAN
AC_CHECK_SIZEOF(unsigned long)
AC_CHECK_SIZEOF(unsigned int)
AC_CHECK_FUNCS(unsetenv alphasort scandir strerror strsignal strtoul vsnprintf lchown)
AC_CHECK_HEADERS(sys/cdefs.h sys/sysinfo.h)

AC_CHECK_FUNC(sysinfo,
  AC_DEFINE(HAVE_SYSINFO),
  AC_MSG_CHECKING(__NR_sysinfo)
  AC_EGREP_CPP(yes, [
#include <linux/sys.h>
#include <linux/kernel.h>
#include <linux/unistd.h>
#ifdef __NR_sysinfo
 yes
#endif
],
    AC_MSG_RESULT([yes; tsk tsk - get your libc fixed.])
    AC_DEFINE(HAVE_NRSYSINFO),
    AC_MSG_RESULT(no)
    AC_MSG_WARN([sysinfo missing; compilation of dpkg proper may fail.])))

AC_SUBST(OPTCFLAGS)
if test "${GCC-no}" = yes; then
 CFLAGS="-D_REENTRANT -D_GNU_SOURCE -O2"
 CXXFLAGS="-D_REENTRANT -D_GNU_SOURCE -O2"
 OPTCFLAGS="-O3"
else
 CFLAGS="-D_REENTRANT -D_GNU_SOURCE -O"
 CXXFLAGS="-D_REENTRANT -D_GNU_SOURCE -O"
fi

DPKG_CACHED_TRY_COMPILE(your C compiler,dpkg_cv_c_works,
 [#include <string.h>], [strcmp("a","b")],
 AC_MSG_RESULT(works),
 AC_MSG_RESULT(broken)
 AC_MSG_ERROR(C compiler is broken))

DPKG_CACHED_TRY_COMPILE(alphasort declaration,dpkg_cv_header_alphasort,[
#include <sys/types.h>
#include <sys/dir.h>
], alphasort,
 AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_ALPHASORT_DECLARATION),
 AC_MSG_RESULT(no))

DPKG_CACHED_TRY_COMPILE(inlines,dpkg_cv_c_inline,,
 [} inline int foo (int x) {],
 AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_INLINE),
 AC_MSG_RESULT(no))

DPKG_CACHED_TRY_COMPILE(__attribute__((,,)),dpkg_cv_c_attribute_supported,,
 [extern int testfunction(int x) __attribute__((,,))],
 AC_MSG_RESULT(yes)
 AC_DEFINE(HAVE_GNUC25_ATTRIB)
  DPKG_CACHED_TRY_COMPILE(__attribute__((noreturn)),dpkg_cv_c_attribute_noreturn,,
   [extern int testfunction(int x) __attribute__((noreturn))],
   AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_GNUC25_NORETURN),
   AC_MSG_RESULT(no))
  DPKG_CACHED_TRY_COMPILE(__attribute__((const)),dpkg_cv_c_attribute_const,,
   [extern int testfunction(int x) __attribute__((const))],
   AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_GNUC25_CONST),
   AC_MSG_RESULT(no))
  DPKG_CACHED_TRY_COMPILE(__attribute__((format...)),dpkg_cv_attribute_format,,
   [extern int testfunction(char *y, ...) __attribute__((format(printf,1,2)))],
   AC_MSG_RESULT(yes)
   AC_DEFINE(HAVE_GNUC25_PRINTFFORMAT),
   AC_MSG_RESULT(no)),
 AC_MSG_RESULT(no))

AC_SUBST(CWARNS)
CWARNS=""

DPKG_C_GCC_TRY_WARNS(-Wall -Wno-implicit, dpkg_cv_c_gcc_warn_all)
DPKG_C_GCC_TRY_WARNS(-Wwrite-strings, dpkg_cv_c_gcc_warn_writestrings)
DPKG_C_GCC_TRY_WARNS(-Wpointer-arith, dpkg_cv_c_gcc_warn_pointerarith)
DPKG_C_GCC_TRY_WARNS(-Wimplicit -Wnested-externs, dpkg_cv_c_gcc_warn_implicit)

if test "${GCC-no}" = yes; then
 CWARNS="${CWARNS} -Wmissing-prototypes -Wstrict-prototypes"
fi

echo "#define DPKG_VERSION \"$VERSION\" /* This line modified by configure */" > version.h.new
cmp -s version.h.new version.h || mv version.h.new version.h

AC_CONFIG_SUBDIRS(utils)
AC_OUTPUT([Makefile intl/Makefile dpkg-deb/Makefile lib/Makefile
          include/Makefile dselect/Makefile split/Makefile methods/Makefile
          md5sum/Makefile main/Makefile doc/Makefile doc/ja/Makefile scripts/Makefile
          utils/Makefile po/Makefile.in])