Annotation of embedaddon/confuse/m4/lib-prefix.m4, revision 1.1
1.1 ! misho 1: # 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 $host_os in
! 73: linux* | gnu* | k*bsd*-gnu) haveit=yes;;
! 74: esac
! 75: fi
! 76: fi
! 77: if test -z "$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 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: ])
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