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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [config/] [lib-prefix.m4] - Blame information for rev 157

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1 24 jeremybenn
# lib-prefix.m4 serial 2 (gettext-0.12)
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dnl Copyright (C) 2001-2003 Free Software Foundation, Inc.
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dnl This file is free software, distributed under the terms of the GNU
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dnl General Public License.  As a special exception to the GNU General
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dnl Public License, this file may be distributed as part of a program
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dnl that contains a configuration script generated by Autoconf, under
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dnl the same distribution terms as the rest of that program.
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dnl From Bruno Haible.
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dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
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dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
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dnl require excessive bracketing.
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ifdef([AC_HELP_STRING],
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[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
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[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
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dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
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dnl to access previously installed libraries. The basic assumption is that
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dnl a user will want packages to use other packages he previously installed
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dnl with the same --prefix option.
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dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
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dnl libraries, but is otherwise very convenient.
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AC_DEFUN([AC_LIB_PREFIX],
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[
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  AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
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  AC_REQUIRE([AC_PROG_CC])
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  AC_REQUIRE([AC_CANONICAL_HOST])
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  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
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  dnl By default, look in $includedir and $libdir.
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  use_additional=yes
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  AC_LIB_WITH_FINAL_PREFIX([
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    eval additional_includedir=\"$includedir\"
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    eval additional_libdir=\"$libdir\"
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  ])
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  AC_LIB_ARG_WITH([lib-prefix],
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[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
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  --without-lib-prefix    don't search for libraries in includedir and libdir],
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[
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    if test "X$withval" = "Xno"; then
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      use_additional=no
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    else
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      if test "X$withval" = "X"; then
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        AC_LIB_WITH_FINAL_PREFIX([
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          eval additional_includedir=\"$includedir\"
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          eval additional_libdir=\"$libdir\"
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        ])
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      else
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        additional_includedir="$withval/include"
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        additional_libdir="$withval/lib"
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      fi
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    fi
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])
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  if test $use_additional = yes; then
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    dnl Potentially add $additional_includedir to $CPPFLAGS.
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    dnl But don't add it
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    dnl   1. if it's the standard /usr/include,
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    dnl   2. if it's already present in $CPPFLAGS,
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    dnl   3. if it's /usr/local/include and we are using GCC on Linux,
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    dnl   4. if it doesn't exist as a directory.
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    if test "X$additional_includedir" != "X/usr/include"; then
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      haveit=
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      for x in $CPPFLAGS; do
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        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
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        if test "X$x" = "X-I$additional_includedir"; then
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          haveit=yes
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          break
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        fi
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      done
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      if test -z "$haveit"; then
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        if test "X$additional_includedir" = "X/usr/local/include"; then
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          if test -n "$GCC"; then
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            case $host_os in
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              linux*) haveit=yes;;
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            esac
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          fi
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        fi
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        if test -z "$haveit"; then
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          if test -d "$additional_includedir"; then
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            dnl Really add $additional_includedir to $CPPFLAGS.
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            CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
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          fi
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        fi
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      fi
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    fi
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    dnl Potentially add $additional_libdir to $LDFLAGS.
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    dnl But don't add it
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    dnl   1. if it's the standard /usr/lib,
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    dnl   2. if it's already present in $LDFLAGS,
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    dnl   3. if it's /usr/local/lib and we are using GCC on Linux,
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    dnl   4. if it doesn't exist as a directory.
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    if test "X$additional_libdir" != "X/usr/lib"; then
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      haveit=
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      for x in $LDFLAGS; do
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        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
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        if test "X$x" = "X-L$additional_libdir"; then
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          haveit=yes
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          break
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        fi
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      done
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      if test -z "$haveit"; then
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        if test "X$additional_libdir" = "X/usr/local/lib"; then
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          if test -n "$GCC"; then
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            case $host_os in
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              linux*) haveit=yes;;
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            esac
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          fi
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        fi
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        if test -z "$haveit"; then
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          if test -d "$additional_libdir"; then
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            dnl Really add $additional_libdir to $LDFLAGS.
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            LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
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          fi
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        fi
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      fi
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    fi
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  fi
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])
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dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
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dnl acl_final_exec_prefix, containing the values to which $prefix and
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dnl $exec_prefix will expand at the end of the configure script.
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AC_DEFUN([AC_LIB_PREPARE_PREFIX],
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[
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  dnl Unfortunately, prefix and exec_prefix get only finally determined
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  dnl at the end of configure.
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  if test "X$prefix" = "XNONE"; then
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    acl_final_prefix="$ac_default_prefix"
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  else
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    acl_final_prefix="$prefix"
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  fi
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  if test "X$exec_prefix" = "XNONE"; then
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    acl_final_exec_prefix='${prefix}'
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  else
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    acl_final_exec_prefix="$exec_prefix"
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  fi
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  acl_save_prefix="$prefix"
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  prefix="$acl_final_prefix"
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  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
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  prefix="$acl_save_prefix"
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])
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dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
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dnl variables prefix and exec_prefix bound to the values they will have
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dnl at the end of the configure script.
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AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
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[
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  acl_save_prefix="$prefix"
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  prefix="$acl_final_prefix"
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  acl_save_exec_prefix="$exec_prefix"
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  exec_prefix="$acl_final_exec_prefix"
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  $1
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  exec_prefix="$acl_save_exec_prefix"
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  prefix="$acl_save_prefix"
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])

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