tarina

git clone https://git.tarina.org/tarina
Log | Files | Refs | README | LICENSE

lib-prefix.m4 (8466B)


      1 # lib-prefix.m4 serial 7 (gettext-0.18)
      2 dnl Copyright (C) 2001-2005, 2008-2010 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 $host_os in
     73               linux* | gnu* | k*bsd*-gnu) haveit=yes;;
     74             esac
     75           fi
     76         fi
     77         if test -z "$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 
    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
    157 dnl - a variable acl_libdirstem, containing the basename of the libdir, either
    158 dnl   "lib" or "lib64" or "lib/64",
    159 dnl - a variable acl_libdirstem2, as a secondary possible value for
    160 dnl   acl_libdirstem, either the same as acl_libdirstem or "lib/sparcv9" or
    161 dnl   "lib/amd64".
    162 AC_DEFUN([AC_LIB_PREPARE_MULTILIB],
    163 [
    164   dnl There is no formal standard regarding lib and lib64.
    165   dnl On glibc systems, the current practice is that on a system supporting
    166   dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under
    167   dnl $prefix/lib64 and 32-bit libraries go under $prefix/lib. We determine
    168   dnl the compiler's default mode by looking at the compiler's library search
    169   dnl path. If at least one of its elements ends in /lib64 or points to a
    170   dnl directory whose absolute pathname ends in /lib64, we assume a 64-bit ABI.
    171   dnl Otherwise we use the default, namely "lib".
    172   dnl On Solaris systems, the current practice is that on a system supporting
    173   dnl 32-bit and 64-bit instruction sets or ABIs, 64-bit libraries go under
    174   dnl $prefix/lib/64 (which is a symlink to either $prefix/lib/sparcv9 or
    175   dnl $prefix/lib/amd64) and 32-bit libraries go under $prefix/lib.
    176   AC_REQUIRE([AC_CANONICAL_HOST])
    177   acl_libdirstem=lib
    178   acl_libdirstem2=
    179   case "$host_os" in
    180     solaris*)
    181       dnl See Solaris 10 Software Developer Collection > Solaris 64-bit Developer's Guide > The Development Environment
    182       dnl <http://docs.sun.com/app/docs/doc/816-5138/dev-env?l=en&a=view>.
    183       dnl "Portable Makefiles should refer to any library directories using the 64 symbolic link."
    184       dnl But we want to recognize the sparcv9 or amd64 subdirectory also if the
    185       dnl symlink is missing, so we set acl_libdirstem2 too.
    186       AC_CACHE_CHECK([for 64-bit host], [gl_cv_solaris_64bit],
    187         [AC_EGREP_CPP([sixtyfour bits], [
    188 #ifdef _LP64
    189 sixtyfour bits
    190 #endif
    191            ], [gl_cv_solaris_64bit=yes], [gl_cv_solaris_64bit=no])
    192         ])
    193       if test $gl_cv_solaris_64bit = yes; then
    194         acl_libdirstem=lib/64
    195         case "$host_cpu" in
    196           sparc*)        acl_libdirstem2=lib/sparcv9 ;;
    197           i*86 | x86_64) acl_libdirstem2=lib/amd64 ;;
    198         esac
    199       fi
    200       ;;
    201     *)
    202       searchpath=`(LC_ALL=C $CC -print-search-dirs) 2>/dev/null | sed -n -e 's,^libraries: ,,p' | sed -e 's,^=,,'`
    203       if test -n "$searchpath"; then
    204         acl_save_IFS="${IFS= 	}"; IFS=":"
    205         for searchdir in $searchpath; do
    206           if test -d "$searchdir"; then
    207             case "$searchdir" in
    208               */lib64/ | */lib64 ) acl_libdirstem=lib64 ;;
    209               */../ | */.. )
    210                 # Better ignore directories of this form. They are misleading.
    211                 ;;
    212               *) searchdir=`cd "$searchdir" && pwd`
    213                  case "$searchdir" in
    214                    */lib64 ) acl_libdirstem=lib64 ;;
    215                  esac ;;
    216             esac
    217           fi
    218         done
    219         IFS="$acl_save_IFS"
    220       fi
    221       ;;
    222   esac
    223   test -n "$acl_libdirstem2" || acl_libdirstem2="$acl_libdirstem"
    224 ])