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author | David Michael <fedora.dm0@gmail.com> | 2012-12-11 19:42:02 -0500 |
---|---|---|
committer | Dan Nicholson <dbn.lists@gmail.com> | 2012-12-14 14:13:41 -0800 |
commit | 5b463c927b6caeb332bb147572ea82b1650ceb7d (patch) | |
tree | b83a9acce6ca0a9653220a20c14c358750ed372d | |
parent | 86c45f0422e375373407e965f68d0bd4984d547c (diff) | |
download | pkg-config-5b463c927b6caeb332bb147572ea82b1650ceb7d.tar.gz |
Include PKG_CHECK_VAR macro for reading variables in .pc files
Freedesktop #48098 (https://bugs.freedesktop.org/show_bug.cgi?id=48098)
-rw-r--r-- | pkg-config.1 | 7 | ||||
-rw-r--r-- | pkg.m4 | 15 |
2 files changed, 22 insertions, 0 deletions
diff --git a/pkg-config.1 b/pkg-config.1 index a5c1513..d76fd51 100644 --- a/pkg-config.1 +++ b/pkg-config.1 @@ -362,6 +362,13 @@ module should install arch-independent pkg-config .pc files. By default the directory is $datadir/pkgconfig, but the default can be changed by passing DIRECTORY. The user can override through the --with-noarch-pkgconfigdir parameter. +.TP +.I "PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])" + +Retrieves the value of the pkg-config variable CONFIG-VARIABLE from +MODULE and stores it in VARIABLE. Note that repeated usage of VARIABLE +is not recommended as the check will be skipped if the variable is +already set. .SH METADATA FILE SYNTAX To add a library to the set of packages \fIpkg-config\fP knows about, @@ -197,3 +197,18 @@ AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir]) m4_popdef([pkg_default]) m4_popdef([pkg_description]) ]) dnl PKG_NOARCH_INSTALLDIR + + +# PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE, +# [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND]) +# ------------------------------------------- +# Retrieves the value of the pkg-config variable for the given module. +AC_DEFUN([PKG_CHECK_VAR], +[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl +AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl + +_PKG_CONFIG([$1], [variable="][$3]["], [$2]) +AS_VAR_COPY([$1], [pkg_cv_][$1]) + +AS_VAR_IF([$1], [""], [$5], [$4])dnl +])# PKG_CHECK_VAR |