source: synfigstudio/trunk/fuentes/m4/lib-prefix.m4 @ 481

Last change on this file since 481 was 481, checked in by jrpelegrina, 4 years ago

First release to xenial

File size: 6.5 KB
Line 
1# lib-prefix.m4 serial 5 (gettext-0.15)
2dnl Copyright (C) 2001-2005 Free Software Foundation, Inc.
3dnl This file is free software; the Free Software Foundation
4dnl gives unlimited permission to copy and/or distribute it,
5dnl with or without modifications, as long as this notice is preserved.
6
7dnl From Bruno Haible.
8
9dnl AC_LIB_ARG_WITH is synonymous to AC_ARG_WITH in autoconf-2.13, and
10dnl similar to AC_ARG_WITH in autoconf 2.52...2.57 except that is doesn't
11dnl require excessive bracketing.
12ifdef([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
16dnl AC_LIB_PREFIX adds to the CPPFLAGS and LDFLAGS the flags that are needed
17dnl to access previously installed libraries. The basic assumption is that
18dnl a user will want packages to use other packages he previously installed
19dnl with the same --prefix option.
20dnl This macro is not needed if only AC_LIB_LINKFLAGS is used to locate
21dnl libraries, but is otherwise very convenient.
22AC_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 $host_os in
73              linux* | gnu* | k*bsd*-gnu) haveit=yes;;
74            esac
75          fi
76        fi
77        if test -z "$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
119dnl AC_LIB_PREPARE_PREFIX creates variables acl_final_prefix,
120dnl acl_final_exec_prefix, containing the values to which $prefix and
121dnl $exec_prefix will expand at the end of the configure script.
122AC_DEFUN([AC_LIB_PREPARE_PREFIX],
123[
124  dnl Unfortunately, prefix and exec_prefix get only finally determined
125  dnl at the end of configure.
126  if test "X$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="$acl_save_prefix"
140])
141
142dnl AC_LIB_WITH_FINAL_PREFIX([statement]) evaluates statement, with the
143dnl variables prefix and exec_prefix bound to the values they will have
144dnl at the end of the configure script.
145AC_DEFUN([AC_LIB_WITH_FINAL_PREFIX],
146[
147  acl_save_prefix="$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
156dnl AC_LIB_PREPARE_MULTILIB creates a variable acl_libdirstem, containing
157dnl the basename of the libdir, either "lib" or "lib64".
158AC_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])
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