Blame m4/PKG_CHECK_VAR.m4
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rpm-build |
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dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
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rpm-build |
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dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
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rpm-build |
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dnl -------------------------------------------
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rpm-build |
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dnl Since: 0.28
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rpm-build |
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dnl
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rpm-build |
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dnl Retrieves the value of the pkg-config variable for the given module.
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rpm-build |
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dnl
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rpm-build |
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dnl Origin (declared license: GPLv2+ with less restrictive exception):
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rpm-build |
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dnl https://cgit.freedesktop.org/pkg-config/tree/pkg.m4.in?h=pkg-config-0.29.1#n261
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rpm-build |
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dnl (AS_VAR_COPY replaced with backward-compatible equivalent and guard
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rpm-build |
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dnl to prefer system-wide variant by Jan Pokorny <jpokorny@redhat.com>)
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rpm-build |
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rpm-build |
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m4_ifndef([PKG_CHECK_VAR],[
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rpm-build |
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AC_DEFUN([PKG_CHECK_VAR],
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rpm-build |
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[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
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rpm-build |
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AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
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rpm-build |
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rpm-build |
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_PKG_CONFIG([$1], [variable="][$3]["], [$2])
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rpm-build |
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dnl AS_VAR_COPY([$1], [pkg_cv_][$1])
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rpm-build |
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$1=AS_VAR_GET([pkg_cv_][$1])
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rpm-build |
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rpm-build |
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AS_VAR_IF([$1], [""], [$5], [$4])dnl
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rpm-build |
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])dnl PKG_CHECK_VAR
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rpm-build |
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])dnl m4_ifndef
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