Annotation of embedaddon/smartmontools/m4/pkg.m4, revision 1.1
1.1 ! misho 1: # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
! 2: #
! 3: # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
! 4: #
! 5: # This program is free software; you can redistribute it and/or modify
! 6: # it under the terms of the GNU General Public License as published by
! 7: # the Free Software Foundation; either version 2 of the License, or
! 8: # (at your option) any later version.
! 9: #
! 10: # This program is distributed in the hope that it will be useful, but
! 11: # WITHOUT ANY WARRANTY; without even the implied warranty of
! 12: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
! 13: # General Public License for more details.
! 14: #
! 15: # You should have received a copy of the GNU General Public License
! 16: # along with this program; if not, write to the Free Software
! 17: # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
! 18: #
! 19: # As a special exception to the GNU General Public License, if you
! 20: # distribute this file as part of a program that contains a
! 21: # configuration script generated by Autoconf, you may include it under
! 22: # the same distribution terms that you use for the rest of that program.
! 23:
! 24: # PKG_PROG_PKG_CONFIG([MIN-VERSION])
! 25: # ----------------------------------
! 26: AC_DEFUN([PKG_PROG_PKG_CONFIG],
! 27: [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
! 28: m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
! 29: AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
! 30: AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
! 31: AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
! 32:
! 33: if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
! 34: AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
! 35: fi
! 36: if test -n "$PKG_CONFIG"; then
! 37: _pkg_min_version=m4_default([$1], [0.9.0])
! 38: AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
! 39: if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
! 40: AC_MSG_RESULT([yes])
! 41: else
! 42: AC_MSG_RESULT([no])
! 43: PKG_CONFIG=""
! 44: fi
! 45:
! 46: fi[]dnl
! 47: ])# PKG_PROG_PKG_CONFIG
! 48:
! 49: # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
! 50: #
! 51: # Check to see whether a particular set of modules exists. Similar
! 52: # to PKG_CHECK_MODULES(), but does not set variables or print errors.
! 53: #
! 54: #
! 55: # Similar to PKG_CHECK_MODULES, make sure that the first instance of
! 56: # this or PKG_CHECK_MODULES is called, or make sure to call
! 57: # PKG_CHECK_EXISTS manually
! 58: # --------------------------------------------------------------
! 59: AC_DEFUN([PKG_CHECK_EXISTS],
! 60: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
! 61: if test -n "$PKG_CONFIG" && \
! 62: AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
! 63: m4_ifval([$2], [$2], [:])
! 64: m4_ifvaln([$3], [else
! 65: $3])dnl
! 66: fi])
! 67:
! 68:
! 69: # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
! 70: # ---------------------------------------------
! 71: m4_define([_PKG_CONFIG],
! 72: [if test -n "$$1"; then
! 73: pkg_cv_[]$1="$$1"
! 74: elif test -n "$PKG_CONFIG"; then
! 75: PKG_CHECK_EXISTS([$3],
! 76: [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
! 77: [pkg_failed=yes])
! 78: else
! 79: pkg_failed=untried
! 80: fi[]dnl
! 81: ])# _PKG_CONFIG
! 82:
! 83: # _PKG_SHORT_ERRORS_SUPPORTED
! 84: # -----------------------------
! 85: AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
! 86: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
! 87: if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
! 88: _pkg_short_errors_supported=yes
! 89: else
! 90: _pkg_short_errors_supported=no
! 91: fi[]dnl
! 92: ])# _PKG_SHORT_ERRORS_SUPPORTED
! 93:
! 94:
! 95: # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
! 96: # [ACTION-IF-NOT-FOUND])
! 97: #
! 98: #
! 99: # Note that if there is a possibility the first call to
! 100: # PKG_CHECK_MODULES might not happen, you should be sure to include an
! 101: # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
! 102: #
! 103: #
! 104: # --------------------------------------------------------------
! 105: AC_DEFUN([PKG_CHECK_MODULES],
! 106: [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
! 107: AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
! 108: AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
! 109:
! 110: pkg_failed=no
! 111: AC_MSG_CHECKING([for $1])
! 112:
! 113: _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
! 114: _PKG_CONFIG([$1][_LIBS], [libs], [$2])
! 115:
! 116: m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
! 117: and $1[]_LIBS to avoid the need to call pkg-config.
! 118: See the pkg-config man page for more details.])
! 119:
! 120: if test $pkg_failed = yes; then
! 121: _PKG_SHORT_ERRORS_SUPPORTED
! 122: if test $_pkg_short_errors_supported = yes; then
! 123: $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
! 124: else
! 125: $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
! 126: fi
! 127: # Put the nasty error message in config.log where it belongs
! 128: echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
! 129:
! 130: ifelse([$4], , [AC_MSG_ERROR(dnl
! 131: [Package requirements ($2) were not met:
! 132:
! 133: $$1_PKG_ERRORS
! 134:
! 135: Consider adjusting the PKG_CONFIG_PATH environment variable if you
! 136: installed software in a non-standard prefix.
! 137:
! 138: _PKG_TEXT
! 139: ])],
! 140: [AC_MSG_RESULT([no])
! 141: $4])
! 142: elif test $pkg_failed = untried; then
! 143: ifelse([$4], , [AC_MSG_FAILURE(dnl
! 144: [The pkg-config script could not be found or is too old. Make sure it
! 145: is in your PATH or set the PKG_CONFIG environment variable to the full
! 146: path to pkg-config.
! 147:
! 148: _PKG_TEXT
! 149:
! 150: To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
! 151: [$4])
! 152: else
! 153: $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
! 154: $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
! 155: AC_MSG_RESULT([yes])
! 156: ifelse([$3], , :, [$3])
! 157: fi[]dnl
! 158: ])# PKG_CHECK_MODULES
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