92 lines
3.1 KiB
Plaintext
92 lines
3.1 KiB
Plaintext
dnl Check for LIBPOWERMAN compiler flags. On success, set nut_have_libpowerman="yes"
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dnl and set LIBPOWERMAN_CFLAGS and LIBPOWERMAN_LIBS. On failure, set
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dnl nut_have_libpowerman="no". This macro can be run multiple times, but will
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dnl do the checking only once.
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AC_DEFUN([NUT_CHECK_PKGCONFIG],
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[
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AS_IF([test -z "${nut_have_pkg_config_seen}"], [
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nut_have_pkg_config_seen=yes
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dnl Note that PKG_CONFIG may be a filename, path,
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dnl or either with args - so no quoting here
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AC_MSG_CHECKING([whether usable PKG_CONFIG was already detected by autoconf])
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AS_IF([test -n "${PKG_CONFIG-}" && test x"${PKG_CONFIG-}" != x"false" && $PKG_CONFIG --help 2>&1 | grep -E '(--cflags|--libs)' >/dev/null],
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[AC_MSG_RESULT([yes: ${PKG_CONFIG}])
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have_PKG_CONFIG=yes
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],
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[AC_MSG_RESULT([no])
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PKG_CONFIG=false
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have_PKG_CONFIG=no
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]
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)
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AS_IF([test x"${PKG_CONFIG-}" = x"false"],
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[dnl Some systems have older autotools without direct macro support for PKG_CONF*
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have_PKG_CONFIG=yes
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AC_PATH_PROG(dummy_PKG_CONFIG, pkg-config)
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AC_ARG_WITH(pkg-config,
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AS_HELP_STRING([@<:@--with-pkg-config=/path/to/gdlib-config@:>@],
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[path to program that reports development package configuration]),
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[
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case "${withval}" in
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"") ;;
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yes|no)
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AC_MSG_ERROR(invalid option --with(out)-pkg-config - see docs/configure.txt)
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;;
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*)
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dummy_PKG_CONFIG="${withval}"
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;;
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esac
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])
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AC_MSG_CHECKING([whether usable PKG_CONFIG is present in PATH or was set by caller])
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AS_IF([test x"$dummy_PKG_CONFIG" = xno || test -z "$dummy_PKG_CONFIG"],
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[AC_MSG_RESULT([no])
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PKG_CONFIG=false
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have_PKG_CONFIG=no
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],
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[AS_IF([$dummy_PKG_CONFIG --help 2>&1 | grep -E '(--cflags|--libs)' >/dev/null],
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[AC_MSG_RESULT([yes: ${dummy_PKG_CONFIG}])
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have_PKG_CONFIG=yes
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PKG_CONFIG="$dummy_PKG_CONFIG"
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],
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[AC_MSG_RESULT([no])
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PKG_CONFIG=false
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have_PKG_CONFIG=no
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]
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)]
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)]
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)
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have_PKG_CONFIG_MACROS=no
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AS_IF([test x"$have_PKG_CONFIG" = xyes],
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[AC_MSG_NOTICE([checking for autoconf macro support of pkg-config (${PKG_CONFIG})])
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dummy_RES=0
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ifdef([PKG_PROG_PKG_CONFIG], [], [dummy_RES=1])
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ifdef([PKG_CHECK_MODULES], [], [dummy_RES=2])
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AS_IF([test "${dummy_RES}" = 0],
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[AC_MSG_NOTICE([checking for autoconf macro support of pkg-config module checker])
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dnl The m4 macro below may be not defined if pkg-config package is not
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dnl installed. Use of ifdef (here and below for e.g. CPPUNIT check)
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dnl allows to avoid shell syntax errors in generated configure script
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dnl by defining a dummy macro in-place.
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ifdef([PKG_CHECK_MODULES], [], [AC_DEFUN([PKG_CHECK_MODULES], [false])])
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PKG_CHECK_MODULES([dummy_PKG_CONFIG], [pkg-config], [have_PKG_CONFIG_MACROS=yes])
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]
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)]
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)
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AS_IF([test x"$have_PKG_CONFIG" = xno],
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[AC_MSG_WARN([pkg-config program is needed to look for further dependencies (will be skipped)])
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PKG_CONFIG="false"
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],
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[AS_IF([test x"$have_PKG_CONFIG_MACROS" = xno],
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[AC_MSG_WARN([pkg-config macros are needed to look for further dependencies, but in some cases pkg-config program can be used directly])]
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)]
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)
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]) dnl if nut_have_pkg_config_seen
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])
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