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Allow documented environment variables in autoconf

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It might be useful to write something like

  sdkflags=$PKG_CONFIG_SYSROOT_DIR`$PKG_CONFIG --variable=sdkdir xorg-server`

in configure.ac macros.  Unfortunately, this will be blocked because
'PKG_CONFIG_SYSROOT' is a forbidden m4 pattern.

This patch extends the list of allowed pattern by the names of
documented pkg-config environment variables.
This commit is contained in:
Enrico Scholz 2010-06-27 12:15:56 +02:00 • committed by Tollef Fog Heen
parent b02c40bca4
commit 4939bdb9a6
1 changed files with 2 additions and 1 deletions
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3
pkg.m4
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@ -26,7 +26,8 @@
# ----------------------------------
AC_DEFUN([PKG_PROG_PKG_CONFIG],
[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
m4_pattern_allow([^PKG_CONFIG(_PATH|_LIBDIR)?$])
m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])