acinclude.m4 - platform/external/libburnia/libisofs - Git at Google


 dnl Copyright (c) 2009 - 2019 Thomas Schmitt
 dnl Provided under the terms of the GNU General Public License version 2 or later.


 AC_DEFUN([LIBBURNIA_SET_FLAGS],
 [
 case $target_os in
 freebsd* | netbsd*)
         LDFLAGS="$LDFLAGS -L/usr/local/lib"
         CPPFLAGS="$CPPFLAGS -I/usr/local/include"
         ;;
 esac
 ])


 AC_DEFUN([TARGET_SHIZZLE],
 [
   ARCH=""
   LIBBURNIA_PKGCONFDIR="$libdir"/pkgconfig

   AC_MSG_CHECKING([target operating system])

   LIBBURNIA_SUPP_ACL=none
   LIBBURNIA_SUPP_FATTR=none
   LIBBURNIA_LDCONFIG_CMD="echo 'No ldconfig run performed. If needed, configure manually for:'"
   case $target in
     *-*-linux*)
       ARCH=linux
       LIBBURN_ARCH_LIBS=
       LIBBURNIA_SUPP_ACL=libacl
       LIBBURNIA_SUPP_FATTR=xattr
       LIBBURNIA_LDCONFIG_CMD=ldconfig
       ;;
     *-*-freebsd*)
       ARCH=freebsd
       LIBBURNIA_SUPP_ACL=libacl
       LIBBURNIA_SUPP_FATTR=extattr
       LIBBURN_ARCH_LIBS=-lcam

       # This may later be overridden by configure --enable-libdir-pkgconfig
       LIBBURNIA_PKGCONFDIR=$(echo "$libdir" | sed 's/\/lib$/\/libdata/')/pkgconfig
       ;;
     *)
       ARCH=
       LIBBURN_ARCH_LIBS=
 #      AC_ERROR([You are attempting to compile for an unsupported platform])
       ;;
   esac

   AC_MSG_RESULT([$ARCH])
 ])


 dnl LIBBURNIA_CHECK_ICONV is by Thomas Schmitt, libburnia project
 dnl It is based on gestures from:
 dnl iconv.m4 serial AM7 (gettext-0.18)
 dnl Copyright (C) 2000-2002, 2007-2009 Free Software Foundation, Inc.
 dnl This file is free software; the Free Software Foundation
 dnl gives unlimited permission to copy and/or distribute it,
 dnl with or without modifications, as long as this notice is preserved.
 dnl From Bruno Haible.
 dnl
 AC_DEFUN([LIBBURNIA_CHECK_ICONV],
 [

   dnl Check whether it is allowed to link with -liconv
   AC_MSG_CHECKING([for iconv() in separate -liconv ])
   libburnia_liconv="no"
   libburnia_save_LIBS="$LIBS"
   LIBS="$LIBS -liconv"
   AC_TRY_LINK([#include <stdlib.h>
 #include <iconv.h>],
     [iconv_t cd = iconv_open("","");
      iconv(cd,NULL,NULL,NULL,NULL);
      iconv_close(cd);],
      [libburnia_liconv="yes"],
      [LIBS="$libburnia_save_LIBS"]
   )
   AC_MSG_RESULT([$libburnia_liconv])

   if test x"$libburnia_save_LIBS" = x"$LIBS"
   then
     dnl GNU iconv has no function iconv() but libiconv() and a macro iconv()
     dnl It is not tested whether this is detected by above macro.
     AC_CHECK_LIB(iconv, libiconv, , )
   fi

   dnl Check for iconv(..., const char **inbuf, ...)
   AC_MSG_CHECKING([for const qualifier with iconv() ])
   AC_TRY_COMPILE([
 #include <stdlib.h>
 #include <iconv.h>
 size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
 ], [], [libburnia_iconv_const=""], [libburnia_iconv_const="const"]
   )
   AC_DEFINE_UNQUOTED([ICONV_CONST], [$libburnia_iconv_const])
   test -z "$libburnia_iconv_const" && libburnia_iconv_const="no"
   AC_MSG_RESULT([$libburnia_iconv_const])
 ])


 dnl LIBBURNIA_ASSERT_ICONV is by Thomas Schmitt, libburnia project
 dnl
 AC_DEFUN([LIBBURNIA_ASSERT_ICONV],
 [
   if test x$LIBISOFS_ASSUME_ICONV = x
   then
     dnl Check for the essential gestures of libisofs/util.c
     AC_MSG_CHECKING([for iconv() to be accessible now ])
     AC_TRY_LINK([
 #include <stdlib.h>
 #include <wchar.h>
 #include <string.h>
 #include <errno.h>
 #include <ctype.h>
 #include <stdio.h>
 #include <limits.h>
 #include <iconv.h>
 #include <locale.h>
 #include <langinfo.h>
 #include <unistd.h>],
 [iconv_t cd = iconv_open("","");
 iconv(cd,NULL,NULL,NULL,NULL);
 iconv_close(cd);
 ], [iconv_test="yes"], [iconv_test="no"]
     )
     AC_MSG_RESULT([$iconv_test])
     if test x$iconv_test = xno
     then
       echo >&2
       echo "Cannot get function iconv() to work. Configuration aborted." >&2
       echo "Check whether your system needs a separate libiconv installed." >&2
       echo "If it is installed but not found, try something like" >&2
       echo '  export LDFLAGS="$LDFLAGS -L/usr/local/lib"' >&2
       echo '  export CPPFLAGS="$CPPFLAGS -I/usr/local/include"' >&2
       echo '  export LIBS="$LIBS -liconv"' >&2
       echo "You may override this test by exporting variable" >&2
       echo "  LIBISOFS_ASSUME_ICONV=yes" >&2
       echo >&2
       (exit 1); exit 1;
     fi
   fi
 ])


 dnl LIBISOFS_ASSERT_VERS_LIBS is by Thomas Schmitt, libburnia project
 dnl It tests whether -Wl,--version-script=... works with the compiler
 AC_DEFUN([LIBISOFS_ASSERT_VERS_LIBS],
 [
     libburnia_save_LDFLAGS="$LDFLAGS"
     LDFLAGS="$LDFLAGS -Wl,--version-script=$srcdir/libisofs/libisofs.ver"
     AC_TRY_LINK([#include <stdio.h>], [printf("Hello\n");],
                 [vers_libs_test="yes"], [vers_libs_test="no"])
     if test x$vers_libs_test = xyes
     then
         LIBLDFLAGS="-Wl,--version-script=$srcdir/libisofs/libisofs.ver"
     fi
     LDFLAGS="$libburnia_save_LDFLAGS"
     AC_SUBST(LIBLDFLAGS)
 ])


 dnl LIBBURNIA_SET_PKGCONFIG determines the install directory for the *.pc file.
 dnl Important: Must be performed _after_ TARGET_SHIZZLE
 dnl
 AC_DEFUN([LIBBURNIA_SET_PKGCONFIG],
 [
 ### for testing --enable-libdir-pkgconfig on Linux
 ### LIBBURNIA_PKGCONFDIR="$libdir"data/pkgconfig

 if test "x$LIBBURNIA_PKGCONFDIR" = "x$libdir"/pkgconfig
 then
   dummy=dummy
 else
   AC_ARG_ENABLE(libdir-pkgconfig,
   [  --enable-libdir-pkgconfig  Install to $libdir/pkgconfig on any OS, default=no],
    , enable_libdir_pkgconfig="no")
   AC_MSG_CHECKING([for --enable-libdir-pkgconfig])
   if test "x$enable_libdir_pkgconfig" = xyes
   then
     LIBBURNIA_PKGCONFDIR="$libdir"/pkgconfig
   fi
   AC_MSG_RESULT([$enable_libdir_pkgconfig])
 fi

 libburnia_pkgconfig_override="no"
 AC_ARG_ENABLE(pkgconfig-path,
 [  --enable-pkgconfig-path=DIR  Absolute path of directory for libisofs-*.pc],
 libburnia_pkgconfig_override="yes" , enable_pkgconfig_path="none")
 AC_MSG_CHECKING([for overridden pkgconfig directory path])
 if test "x$enable_pkgconfig_path" = xno
 then
   libburnia_pkgconfig_override="no"
 fi
 if test "x$enable_pkgconfig_path" = x -o "x$enable_pkgconfig_path" = xyes
 then
   libburnia_pkgconfig_override="invalid argument"
 fi
 if test "x$libburnia_pkgconfig_override" = xyes
 then
   LIBBURNIA_PKGCONFDIR="$enable_pkgconfig_path"
   AC_MSG_RESULT([$LIBBURNIA_PKGCONFDIR])
 else
   AC_MSG_RESULT([$libburnia_pkgconfig_override])
 fi
 AC_SUBST(LIBBURNIA_PKGCONFDIR)

 dnl For debugging only
 ### AC_MSG_RESULT([LIBBURNIA_PKGCONFDIR = $LIBBURNIA_PKGCONFDIR])

 ])

 dnl LIBBURNIA_TRY_TIMEZONE is by Thomas Schmitt, libburnia project
 dnl It tests whether the global variable exists and is suitable for
 dnl integer arithmetics.
 AC_DEFUN([LIBBURNIA_TRY_TIMEZONE],
 [
     echo -n "checking for timezone variable ... "
     AC_TRY_LINK([ #include <time.h> ], [long int i; i = 1 - timezone; ],
                 [LIBBURNIA_TIMEZONE="timezone"], [LIBBURNIA_TIMEZONE="0"]
     )
     echo "$LIBBURNIA_TIMEZONE"
 ])

	dnl Copyright (c) 2009 - 2019 Thomas Schmitt
	dnl Provided under the terms of the GNU General Public License version 2 or later.


	AC_DEFUN([LIBBURNIA_SET_FLAGS],
	[
	case $target_os in
	freebsd* \| netbsd*)
	LDFLAGS="$LDFLAGS -L/usr/local/lib"
	CPPFLAGS="$CPPFLAGS -I/usr/local/include"
	;;
	esac
	])


	AC_DEFUN([TARGET_SHIZZLE],
	[
	ARCH=""
	LIBBURNIA_PKGCONFDIR="$libdir"/pkgconfig

	AC_MSG_CHECKING([target operating system])

	LIBBURNIA_SUPP_ACL=none
	LIBBURNIA_SUPP_FATTR=none
	LIBBURNIA_LDCONFIG_CMD="echo 'No ldconfig run performed. If needed, configure manually for:'"
	case $target in
	--linux*)
	ARCH=linux
	LIBBURN_ARCH_LIBS=
	LIBBURNIA_SUPP_ACL=libacl
	LIBBURNIA_SUPP_FATTR=xattr
	LIBBURNIA_LDCONFIG_CMD=ldconfig
	;;
	--freebsd*)
	ARCH=freebsd
	LIBBURNIA_SUPP_ACL=libacl
	LIBBURNIA_SUPP_FATTR=extattr
	LIBBURN_ARCH_LIBS=-lcam

	# This may later be overridden by configure --enable-libdir-pkgconfig
	LIBBURNIA_PKGCONFDIR=$(echo "$libdir" \| sed 's/\/lib$/\/libdata/')/pkgconfig
	;;
	*)
	ARCH=
	LIBBURN_ARCH_LIBS=
	# AC_ERROR([You are attempting to compile for an unsupported platform])
	;;
	esac

	AC_MSG_RESULT([$ARCH])
	])


	dnl LIBBURNIA_CHECK_ICONV is by Thomas Schmitt, libburnia project
	dnl It is based on gestures from:
	dnl iconv.m4 serial AM7 (gettext-0.18)
	dnl Copyright (C) 2000-2002, 2007-2009 Free Software Foundation, Inc.
	dnl This file is free software; the Free Software Foundation
	dnl gives unlimited permission to copy and/or distribute it,
	dnl with or without modifications, as long as this notice is preserved.
	dnl From Bruno Haible.
	dnl
	AC_DEFUN([LIBBURNIA_CHECK_ICONV],
	[

	dnl Check whether it is allowed to link with -liconv
	AC_MSG_CHECKING([for iconv() in separate -liconv ])
	libburnia_liconv="no"
	libburnia_save_LIBS="$LIBS"
	LIBS="$LIBS -liconv"
	AC_TRY_LINK([#include <stdlib.h>
	#include <iconv.h>],
	[iconv_t cd = iconv_open("","");
	iconv(cd,NULL,NULL,NULL,NULL);
	iconv_close(cd);],
	[libburnia_liconv="yes"],
	[LIBS="$libburnia_save_LIBS"]
	)
	AC_MSG_RESULT([$libburnia_liconv])

	if test x"$libburnia_save_LIBS" = x"$LIBS"
	then
	dnl GNU iconv has no function iconv() but libiconv() and a macro iconv()
	dnl It is not tested whether this is detected by above macro.
	AC_CHECK_LIB(iconv, libiconv, , )
	fi

	dnl Check for iconv(..., const char **inbuf, ...)
	AC_MSG_CHECKING([for const qualifier with iconv() ])
	AC_TRY_COMPILE([
	#include <stdlib.h>
	#include <iconv.h>
	size_t iconv (iconv_t cd, char * inbuf, size_t inbytesleft, char * outbuf, size_t outbytesleft);
	], [], [libburnia_iconv_const=""], [libburnia_iconv_const="const"]
	)
	AC_DEFINE_UNQUOTED([ICONV_CONST], [$libburnia_iconv_const])
	test -z "$libburnia_iconv_const" && libburnia_iconv_const="no"
	AC_MSG_RESULT([$libburnia_iconv_const])
	])


	dnl LIBBURNIA_ASSERT_ICONV is by Thomas Schmitt, libburnia project
	dnl
	AC_DEFUN([LIBBURNIA_ASSERT_ICONV],
	[
	if test x$LIBISOFS_ASSUME_ICONV = x
	then
	dnl Check for the essential gestures of libisofs/util.c
	AC_MSG_CHECKING([for iconv() to be accessible now ])
	AC_TRY_LINK([
	#include <stdlib.h>
	#include <wchar.h>
	#include <string.h>
	#include <errno.h>
	#include <ctype.h>
	#include <stdio.h>
	#include <limits.h>
	#include <iconv.h>
	#include <locale.h>
	#include <langinfo.h>
	#include <unistd.h>],
	[iconv_t cd = iconv_open("","");
	iconv(cd,NULL,NULL,NULL,NULL);
	iconv_close(cd);
	], [iconv_test="yes"], [iconv_test="no"]
	)
	AC_MSG_RESULT([$iconv_test])
	if test x$iconv_test = xno
	then
	echo >&2
	echo "Cannot get function iconv() to work. Configuration aborted." >&2
	echo "Check whether your system needs a separate libiconv installed." >&2
	echo "If it is installed but not found, try something like" >&2
	echo ' export LDFLAGS="$LDFLAGS -L/usr/local/lib"' >&2
	echo ' export CPPFLAGS="$CPPFLAGS -I/usr/local/include"' >&2
	echo ' export LIBS="$LIBS -liconv"' >&2
	echo "You may override this test by exporting variable" >&2
	echo " LIBISOFS_ASSUME_ICONV=yes" >&2
	echo >&2
	(exit 1); exit 1;
	fi
	fi
	])


	dnl LIBISOFS_ASSERT_VERS_LIBS is by Thomas Schmitt, libburnia project
	dnl It tests whether -Wl,--version-script=... works with the compiler
	AC_DEFUN([LIBISOFS_ASSERT_VERS_LIBS],
	[
	libburnia_save_LDFLAGS="$LDFLAGS"
	LDFLAGS="$LDFLAGS -Wl,--version-script=$srcdir/libisofs/libisofs.ver"
	AC_TRY_LINK([#include <stdio.h>], [printf("Hello\n");],
	[vers_libs_test="yes"], [vers_libs_test="no"])
	if test x$vers_libs_test = xyes
	then
	LIBLDFLAGS="-Wl,--version-script=$srcdir/libisofs/libisofs.ver"
	fi
	LDFLAGS="$libburnia_save_LDFLAGS"
	AC_SUBST(LIBLDFLAGS)
	])


	dnl LIBBURNIA_SET_PKGCONFIG determines the install directory for the *.pc file.
	dnl Important: Must be performed _after_ TARGET_SHIZZLE
	dnl
	AC_DEFUN([LIBBURNIA_SET_PKGCONFIG],
	[
	### for testing --enable-libdir-pkgconfig on Linux
	### LIBBURNIA_PKGCONFDIR="$libdir"data/pkgconfig

	if test "x$LIBBURNIA_PKGCONFDIR" = "x$libdir"/pkgconfig
	then
	dummy=dummy
	else
	AC_ARG_ENABLE(libdir-pkgconfig,
	[ --enable-libdir-pkgconfig Install to $libdir/pkgconfig on any OS, default=no],
	, enable_libdir_pkgconfig="no")
	AC_MSG_CHECKING([for --enable-libdir-pkgconfig])
	if test "x$enable_libdir_pkgconfig" = xyes
	then
	LIBBURNIA_PKGCONFDIR="$libdir"/pkgconfig
	fi
	AC_MSG_RESULT([$enable_libdir_pkgconfig])
	fi

	libburnia_pkgconfig_override="no"
	AC_ARG_ENABLE(pkgconfig-path,
	[ --enable-pkgconfig-path=DIR Absolute path of directory for libisofs-*.pc],
	libburnia_pkgconfig_override="yes" , enable_pkgconfig_path="none")
	AC_MSG_CHECKING([for overridden pkgconfig directory path])
	if test "x$enable_pkgconfig_path" = xno
	then
	libburnia_pkgconfig_override="no"
	fi
	if test "x$enable_pkgconfig_path" = x -o "x$enable_pkgconfig_path" = xyes
	then
	libburnia_pkgconfig_override="invalid argument"
	fi
	if test "x$libburnia_pkgconfig_override" = xyes
	then
	LIBBURNIA_PKGCONFDIR="$enable_pkgconfig_path"
	AC_MSG_RESULT([$LIBBURNIA_PKGCONFDIR])
	else
	AC_MSG_RESULT([$libburnia_pkgconfig_override])
	fi
	AC_SUBST(LIBBURNIA_PKGCONFDIR)

	dnl For debugging only
	### AC_MSG_RESULT([LIBBURNIA_PKGCONFDIR = $LIBBURNIA_PKGCONFDIR])

	])

	dnl LIBBURNIA_TRY_TIMEZONE is by Thomas Schmitt, libburnia project
	dnl It tests whether the global variable exists and is suitable for
	dnl integer arithmetics.
	AC_DEFUN([LIBBURNIA_TRY_TIMEZONE],
	[
	echo -n "checking for timezone variable ... "
	AC_TRY_LINK([ #include <time.h> ], [long int i; i = 1 - timezone; ],
	[LIBBURNIA_TIMEZONE="timezone"], [LIBBURNIA_TIMEZONE="0"]
	)
	echo "$LIBBURNIA_TIMEZONE"
	])