trunk/m4/lib-prefix.m4

# lib-prefix.m4 serial 5 (gettext-0.15)
dnl Copyright (C) 2001-2005 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_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
dnl require excessive bracketing.
ifdef([AC_HELP_STRING],
[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])

dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
dnl to access previously installed libraries. The basic assumption is that
dnl a user will want packages to use other packages he previously installed
dnl with the same --prefix option.
dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
dnl libraries, but is otherwise very convenient.
AC_DEFUN([AC_LIB_PREFIX],
[
  AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
  AC_REQUIRE([AC_PROG_CC])
  AC_REQUIRE([AC_CANONICAL_HOST])
  AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
  AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
  dnl By default, look in $includedir and $libdir.
  use_additional=yes
  AC_LIB_WITH_FINAL_PREFIX([
    eval additional_includedir=\"$includedir\"
    eval additional_libdir=\"$libdir\"
  ])
  AC_LIB_ARG_WITH([lib-prefix],
[  --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
  --without-lib-prefix    don't search for libraries in includedir and libdir],
[
    if test "X$withval" = "Xno"; then
      use_additional=no
    else
      if test "X$withval" = "X"; then
        AC_LIB_WITH_FINAL_PREFIX([
          eval additional_includedir=\"$includedir\"
          eval additional_libdir=\"$libdir\"
        ])
      else
        additional_includedir="$withval/include"
        additional_libdir="$withval/$acl_libdirstem"
      fi
    fi
])
  if test $use_additional = yes; then
    dnl Potentially add $additional_includedir to $CPPFLAGS.
    dnl But don't add it
    dnl   1. if it's the standard /usr/include,
    dnl   2. if it's already present in $CPPFLAGS,
    dnl   3. if it's /usr/local/include and we are using GCC on Linux,
    dnl   4. if it doesn't exist as a directory.
    if test "X$additional_includedir" != "X/usr/include"; then
      haveit=
      for x in $CPPFLAGS; do
        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
        if test "X$x" = "X-I$additional_includedir"; then
          haveit=yes
          break
        fi
      done
      if test -z "$haveit"; then
        if test "X$additional_includedir" = "X/usr/local/include"; then
          if test -n "$GCC"; then
            case $host_os in
              linux* | gnu* | k*bsd*-gnu) haveit=yes;;
            esac
          fi
        fi
        if test -z "$haveit"; then
          if test -d "$additional_includedir"; then
            dnl Really add $additional_includedir to $CPPFLAGS.
            CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
          fi
        fi
      fi
    fi
    dnl Potentially add $additional_libdir to $LDFLAGS.
    dnl But don't add it
    dnl   1. if it's the standard /usr/lib,
    dnl   2. if it's already present in $LDFLAGS,
    dnl   3. if it's /usr/local/lib and we are using GCC on Linux,
    dnl   4. if it doesn't exist as a directory.
    if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
      haveit=
      for x in $LDFLAGS; do
        AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
        if test "X$x" = "X-L$additional_libdir"; then
          haveit=yes
          break
        fi
      done
      if test -z "$haveit"; then
        if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
          if test -n "$GCC"; then
            case $host_os in
              linux*) haveit=yes;;
            esac
          fi
        fi
        if test -z "$haveit"; then
          if test -d "$additional_libdir"; then
            dnl Really add $additional_libdir to $LDFLAGS.
            LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
          fi
        fi
      fi
    fi
  fi
])

dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
dnl acl_final_exec_prefix, containing the values to which $prefix and
dnl $exec_prefix will expand at the end of the configure script.
AC_DEFUN([AC_LIB_PREPARE_PREFIX],
[
  dnl Unfortunately, prefix and exec_prefix get only finally determined
  dnl at the end of configure.
  if test "X$prefix" = "XNONE"; then
    acl_final_prefix="$ac_default_prefix"
  else
    acl_final_prefix="$prefix"
  fi
  if test "X$exec_prefix" = "XNONE"; then
    acl_final_exec_prefix='${prefix}'
  else
    acl_final_exec_prefix="$exec_prefix"
  fi
  acl_save_prefix="$prefix"
  prefix="$acl_final_prefix"
  eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
  prefix="$acl_save_prefix"
])

dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
dnl variables prefix and exec_prefix bound to the values they will have
dnl at the end of the configure script.
AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
[
  acl_save_prefix="$prefix"
  prefix="$acl_final_prefix"
  acl_save_exec_prefix="$exec_prefix"
  exec_prefix="$acl_final_exec_prefix"
  $1
  exec_prefix="$acl_save_exec_prefix"
  prefix="$acl_save_prefix"
])

dnl AC_LIB_PREPARE_MULTILIB creates a variable acl_libdirstem, containing
dnl the basename of the libdir, either "lib" or "lib64".
AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
[
  dnl There is no formal standard regarding lib and lib64. The current
  dnl practice is that on a system supporting 32-bit and 64-bit instruction
  dnl sets or ABIs, 64-bit libraries go under $prefix/lib64 and 32-bit
  dnl libraries go under $prefix/lib. We determine the compiler's default
  dnl mode by looking at the compiler's library search path. If at least
  dnl of its elements ends in /lib64 or points to a directory whose absolute
  dnl pathname ends in /lib64, we assume a 64-bit ABI. Otherwise we use the
  dnl default, namely "lib".
  acl_libdirstem=lib
  searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
  if test -n "$searchpath"; then
    acl_save_IFS="${IFS=        }"; IFS=":"
    for searchdir in $searchpath; do
      if test -d "$searchdir"; then
        case "$searchdir" in
          */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
          *) searchdir=`cd "$searchdir" && pwd`
             case "$searchdir" in
               */lib64 ) acl_libdirstem=lib64 ;;
             esac ;;
        esac
      fi
    done
    IFS="$acl_save_IFS"
  fi
])
1	siliconforks	174	# lib-prefix.m4 serial 5 (gettext-0.15)
2			dnl Copyright (C) 2001-2005 Free Software Foundation, Inc.
3			dnl This file is free software; the Free Software Foundation
4			dnl gives unlimited permission to copy and/or distribute it,
5			dnl with or without modifications, as long as this notice is preserved.
6
7			dnl From Bruno Haible.
8
9			dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
10			dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
11			dnl require excessive bracketing.
12			ifdef([AC_HELP_STRING],
13			[AC_DEFUN([AC_LIB_ARG_WITH], [AC_ARG_WITH([$1],[[$2]],[$3],[$4])])],
14			[AC_DEFUN([AC_][LIB_ARG_WITH], [AC_ARG_WITH([$1],[$2],[$3],[$4])])])
15
16			dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
17			dnl to access previously installed libraries. The basic assumption is that
18			dnl a user will want packages to use other packages he previously installed
19			dnl with the same --prefix option.
20			dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
21			dnl libraries, but is otherwise very convenient.
22			AC_DEFUN([AC_LIB_PREFIX],
23			[
24			AC_BEFORE([$0], [AC_LIB_LINKFLAGS])
25			AC_REQUIRE([AC_PROG_CC])
26			AC_REQUIRE([AC_CANONICAL_HOST])
27			AC_REQUIRE([AC_LIB_PREPARE_MULTILIB])
28			AC_REQUIRE([AC_LIB_PREPARE_PREFIX])
29			dnl By default, look in $includedir and $libdir.
30			use_additional=yes
31			AC_LIB_WITH_FINAL_PREFIX([
32			eval additional_includedir=\"$includedir\"
33			eval additional_libdir=\"$libdir\"
34			])
35			AC_LIB_ARG_WITH([lib-prefix],
36			[ --with-lib-prefix[=DIR] search for libraries in DIR/include and DIR/lib
37			--without-lib-prefix don't search for libraries in includedir and libdir],
38			[
39			if test "X$withval" = "Xno"; then
40			use_additional=no
41			else
42			if test "X$withval" = "X"; then
43			AC_LIB_WITH_FINAL_PREFIX([
44			eval additional_includedir=\"$includedir\"
45			eval additional_libdir=\"$libdir\"
46			])
47			else
48			additional_includedir="$withval/include"
49			additional_libdir="$withval/$acl_libdirstem"
50			fi
51			fi
52			])
53			if test $use_additional = yes; then
54			dnl Potentially add $additional_includedir to $CPPFLAGS.
55			dnl But don't add it
56			dnl 1. if it's the standard /usr/include,
57			dnl 2. if it's already present in $CPPFLAGS,
58			dnl 3. if it's /usr/local/include and we are using GCC on Linux,
59			dnl 4. if it doesn't exist as a directory.
60			if test "X$additional_includedir" != "X/usr/include"; then
61			haveit=
62			for x in $CPPFLAGS; do
63			AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
64			if test "X$x" = "X-I$additional_includedir"; then
65			haveit=yes
66			break
67			fi
68			done
69			if test -z "$haveit"; then
70			if test "X$additional_includedir" = "X/usr/local/include"; then
71			if test -n "$GCC"; then
72			case $host_os in
73			linux* \| gnu* \| kbsd-gnu) haveit=yes;;
74			esac
75			fi
76			fi
77			if test -z "$haveit"; then
78			if test -d "$additional_includedir"; then
79			dnl Really add $additional_includedir to $CPPFLAGS.
80			CPPFLAGS="${CPPFLAGS}${CPPFLAGS:+ }-I$additional_includedir"
81			fi
82			fi
83			fi
84			fi
85			dnl Potentially add $additional_libdir to $LDFLAGS.
86			dnl But don't add it
87			dnl 1. if it's the standard /usr/lib,
88			dnl 2. if it's already present in $LDFLAGS,
89			dnl 3. if it's /usr/local/lib and we are using GCC on Linux,
90			dnl 4. if it doesn't exist as a directory.
91			if test "X$additional_libdir" != "X/usr/$acl_libdirstem"; then
92			haveit=
93			for x in $LDFLAGS; do
94			AC_LIB_WITH_FINAL_PREFIX([eval x=\"$x\"])
95			if test "X$x" = "X-L$additional_libdir"; then
96			haveit=yes
97			break
98			fi
99			done
100			if test -z "$haveit"; then
101			if test "X$additional_libdir" = "X/usr/local/$acl_libdirstem"; then
102			if test -n "$GCC"; then
103			case $host_os in
104			linux*) haveit=yes;;
105			esac
106			fi
107			fi
108			if test -z "$haveit"; then
109			if test -d "$additional_libdir"; then
110			dnl Really add $additional_libdir to $LDFLAGS.
111			LDFLAGS="${LDFLAGS}${LDFLAGS:+ }-L$additional_libdir"
112			fi
113			fi
114			fi
115			fi
116			fi
117			])
118
119			dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
120			dnl acl_final_exec_prefix, containing the values to which $prefix and
121			dnl $exec_prefix will expand at the end of the configure script.
122			AC_DEFUN([AC_LIB_PREPARE_PREFIX],
123			[
124			dnl Unfortunately, prefix and exec_prefix get only finally determined
125			dnl at the end of configure.
126			if test "X$prefix" = "XNONE"; then
127			acl_final_prefix="$ac_default_prefix"
128			else
129			acl_final_prefix="$prefix"
130			fi
131			if test "X$exec_prefix" = "XNONE"; then
132			acl_final_exec_prefix='${prefix}'
133			else
134			acl_final_exec_prefix="$exec_prefix"
135			fi
136			acl_save_prefix="$prefix"
137			prefix="$acl_final_prefix"
138			eval acl_final_exec_prefix=\"$acl_final_exec_prefix\"
139			prefix="$acl_save_prefix"
140			])
141
142			dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
143			dnl variables prefix and exec_prefix bound to the values they will have
144			dnl at the end of the configure script.
145			AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
146			[
147			acl_save_prefix="$prefix"
148			prefix="$acl_final_prefix"
149			acl_save_exec_prefix="$exec_prefix"
150			exec_prefix="$acl_final_exec_prefix"
151			$1
152			exec_prefix="$acl_save_exec_prefix"
153			prefix="$acl_save_prefix"
154			])
155
156			dnl AC_LIB_PREPARE_MULTILIB creates a variable acl_libdirstem, containing
157			dnl the basename of the libdir, either "lib" or "lib64".
158			AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
159			[
160			dnl There is no formal standard regarding lib and lib64. The current
161			dnl practice is that on a system supporting 32-bit and 64-bit instruction
162			dnl sets or ABIs, 64-bit libraries go under $prefix/lib64 and 32-bit
163			dnl libraries go under $prefix/lib. We determine the compiler's default
164			dnl mode by looking at the compiler's library search path. If at least
165			dnl of its elements ends in /lib64 or points to a directory whose absolute
166			dnl pathname ends in /lib64, we assume a 64-bit ABI. Otherwise we use the
167			dnl default, namely "lib".
168			acl_libdirstem=lib
169			searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null \| sed -n -e 's,^libraries: ,,p' \| sed -e 's,^=,,'`
170			if test -n "$searchpath"; then
171			acl_save_IFS="${IFS= }"; IFS=":"
172			for searchdir in $searchpath; do
173			if test -d "$searchdir"; then
174			case "$searchdir" in
175			/lib64/ \| /lib64 ) acl_libdirstem=lib64 ;;
176			*) searchdir=`cd "$searchdir" && pwd`
177			case "$searchdir" in
178			*/lib64 ) acl_libdirstem=lib64 ;;
179			esac ;;
180			esac
181			fi
182			done
183			IFS="$acl_save_IFS"
184			fi
185			])