common/autoconf/build-aux/pkg.m4

Tue, 10 Apr 2012 08:18:28 -0700

author
ohair
date
Tue, 10 Apr 2012 08:18:28 -0700
changeset 425
e1830598f0b7
child 576
b66c81dfa291
permissions
-rw-r--r--

7074397: Build infrastructure changes (makefile re-write)
Summary: New makefiles transition, old and new living side by side for now.
Reviewed-by: ohair, jjg, dholmes, ohrstrom, erikj, ihse, tgranat, ykantser
Contributed-by: ohrstrom <fredrik.ohrstrom@oracle.com>, erikj <erik.joelsson@oracle.com>, ihse <magnus.ihse.bursie@oracle.com>, tgranat <torbjorn.granat@oracle.com>, ykantser <yekaterina.kantserova@oracle.com>

ohair@425 1 # pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
ohair@425 2 #
ohair@425 3 # Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
ohair@425 4 #
ohair@425 5 # This program is free software; you can redistribute it and/or modify
ohair@425 6 # it under the terms of the GNU General Public License as published by
ohair@425 7 # the Free Software Foundation; either version 2 of the License, or
ohair@425 8 # (at your option) any later version.
ohair@425 9 #
ohair@425 10 # This program is distributed in the hope that it will be useful, but
ohair@425 11 # WITHOUT ANY WARRANTY; without even the implied warranty of
ohair@425 12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
ohair@425 13 # General Public License for more details.
ohair@425 14 #
ohair@425 15 # You should have received a copy of the GNU General Public License
ohair@425 16 # along with this program; if not, write to the Free Software
ohair@425 17 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
ohair@425 18 #
ohair@425 19 # As a special exception to the GNU General Public License, if you
ohair@425 20 # distribute this file as part of a program that contains a
ohair@425 21 # configuration script generated by Autoconf, you may include it under
ohair@425 22 # the same distribution terms that you use for the rest of that program.
ohair@425 23
ohair@425 24 # PKG_PROG_PKG_CONFIG([MIN-VERSION])
ohair@425 25 # ----------------------------------
ohair@425 26 AC_DEFUN([PKG_PROG_PKG_CONFIG],
ohair@425 27 [m4_pattern_forbid([^_?PKG_[A-Z_]+$])
ohair@425 28 m4_pattern_allow([^PKG_CONFIG(_PATH)?$])
ohair@425 29 AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])dnl
ohair@425 30 if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
ohair@425 31 AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
ohair@425 32 fi
ohair@425 33 if test -n "$PKG_CONFIG"; then
ohair@425 34 _pkg_min_version=m4_default([$1], [0.9.0])
ohair@425 35 AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
ohair@425 36 if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
ohair@425 37 AC_MSG_RESULT([yes])
ohair@425 38 else
ohair@425 39 AC_MSG_RESULT([no])
ohair@425 40 PKG_CONFIG=""
ohair@425 41 fi
ohair@425 42
ohair@425 43 fi[]dnl
ohair@425 44 ])# PKG_PROG_PKG_CONFIG
ohair@425 45
ohair@425 46 # PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
ohair@425 47 #
ohair@425 48 # Check to see whether a particular set of modules exists. Similar
ohair@425 49 # to PKG_CHECK_MODULES(), but does not set variables or print errors.
ohair@425 50 #
ohair@425 51 #
ohair@425 52 # Similar to PKG_CHECK_MODULES, make sure that the first instance of
ohair@425 53 # this or PKG_CHECK_MODULES is called, or make sure to call
ohair@425 54 # PKG_CHECK_EXISTS manually
ohair@425 55 # --------------------------------------------------------------
ohair@425 56 AC_DEFUN([PKG_CHECK_EXISTS],
ohair@425 57 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
ohair@425 58 if test -n "$PKG_CONFIG" && \
ohair@425 59 AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
ohair@425 60 m4_ifval([$2], [$2], [:])
ohair@425 61 m4_ifvaln([$3], [else
ohair@425 62 $3])dnl
ohair@425 63 fi])
ohair@425 64
ohair@425 65
ohair@425 66 # _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
ohair@425 67 # ---------------------------------------------
ohair@425 68 m4_define([_PKG_CONFIG],
ohair@425 69 [if test -n "$$1"; then
ohair@425 70 pkg_cv_[]$1="$$1"
ohair@425 71 elif test -n "$PKG_CONFIG"; then
ohair@425 72 PKG_CHECK_EXISTS([$3],
ohair@425 73 [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`],
ohair@425 74 [pkg_failed=yes])
ohair@425 75 else
ohair@425 76 pkg_failed=untried
ohair@425 77 fi[]dnl
ohair@425 78 ])# _PKG_CONFIG
ohair@425 79
ohair@425 80 # _PKG_SHORT_ERRORS_SUPPORTED
ohair@425 81 # -----------------------------
ohair@425 82 AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
ohair@425 83 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])
ohair@425 84 if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
ohair@425 85 _pkg_short_errors_supported=yes
ohair@425 86 else
ohair@425 87 _pkg_short_errors_supported=no
ohair@425 88 fi[]dnl
ohair@425 89 ])# _PKG_SHORT_ERRORS_SUPPORTED
ohair@425 90
ohair@425 91
ohair@425 92 # PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
ohair@425 93 # [ACTION-IF-NOT-FOUND])
ohair@425 94 #
ohair@425 95 #
ohair@425 96 # Note that if there is a possibility the first call to
ohair@425 97 # PKG_CHECK_MODULES might not happen, you should be sure to include an
ohair@425 98 # explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
ohair@425 99 #
ohair@425 100 #
ohair@425 101 # --------------------------------------------------------------
ohair@425 102 AC_DEFUN([PKG_CHECK_MODULES],
ohair@425 103 [AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
ohair@425 104 AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
ohair@425 105 AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
ohair@425 106
ohair@425 107 pkg_failed=no
ohair@425 108 AC_MSG_CHECKING([for $1])
ohair@425 109
ohair@425 110 _PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
ohair@425 111 _PKG_CONFIG([$1][_LIBS], [libs], [$2])
ohair@425 112
ohair@425 113 m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
ohair@425 114 and $1[]_LIBS to avoid the need to call pkg-config.
ohair@425 115 See the pkg-config man page for more details.])
ohair@425 116
ohair@425 117 if test $pkg_failed = yes; then
ohair@425 118 _PKG_SHORT_ERRORS_SUPPORTED
ohair@425 119 if test $_pkg_short_errors_supported = yes; then
ohair@425 120 $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors "$2" 2>&1`
ohair@425 121 else
ohair@425 122 $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors "$2" 2>&1`
ohair@425 123 fi
ohair@425 124 # Put the nasty error message in config.log where it belongs
ohair@425 125 echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
ohair@425 126
ohair@425 127 ifelse([$4], , [AC_MSG_ERROR(dnl
ohair@425 128 [Package requirements ($2) were not met:
ohair@425 129
ohair@425 130 $$1_PKG_ERRORS
ohair@425 131
ohair@425 132 Consider adjusting the PKG_CONFIG_PATH environment variable if you
ohair@425 133 installed software in a non-standard prefix.
ohair@425 134
ohair@425 135 _PKG_TEXT
ohair@425 136 ])],
ohair@425 137 [AC_MSG_RESULT([no])
ohair@425 138 $4])
ohair@425 139 elif test $pkg_failed = untried; then
ohair@425 140 ifelse([$4], , [AC_MSG_FAILURE(dnl
ohair@425 141 [The pkg-config script could not be found or is too old. Make sure it
ohair@425 142 is in your PATH or set the PKG_CONFIG environment variable to the full
ohair@425 143 path to pkg-config.
ohair@425 144
ohair@425 145 _PKG_TEXT
ohair@425 146
ohair@425 147 To get pkg-config, see <http://pkg-config.freedesktop.org/>.])],
ohair@425 148 [$4])
ohair@425 149 else
ohair@425 150 $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
ohair@425 151 $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
ohair@425 152 AC_MSG_RESULT([yes])
ohair@425 153 ifelse([$3], , :, [$3])
ohair@425 154 fi[]dnl
ohair@425 155 ])# PKG_CHECK_MODULES

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