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From: Helmut Grohne <helmut@subdivi.de>
Subject: use PKG_PROG_PKG_CONFIG correctly
Using $PKG_CONFIG allows PKG_PROG_PKG_CONFIG to add $ac_tool_prefix which is
crucial for cross compilation.
Index: btrfs-progs-4.7.3/configure.ac
===================================================================
--- btrfs-progs-4.7.3.orig/configure.ac
+++ btrfs-progs-4.7.3/configure.ac
@@ -55,8 +55,8 @@
dnl Calls pkg-config --static
dnl
AC_DEFUN([PKG_STATIC], [
- if AC_RUN_LOG([pkg-config --exists --print-errors "$2"]); then
- $1=`pkg-config --libs --static "$2"`
+ if AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$2"]); then
+ $1=`$PKG_CONFIG --libs --static "$2"`
AC_SUBST([$1])
else
AC_MSG_ERROR([pkg-config description of $2, needed for static build, is not available])
@@ -165,8 +165,8 @@
# Our udev rule gives us the friendly dm names but isn't required (or valid)
# on earlier releases.
UDEVDIR=
-if pkg-config udev --atleast-version 190; then
- UDEVDIR="$(pkg-config udev --variable=udevdir)"
+if $PKG_CONFIG udev --atleast-version 190; then
+ UDEVDIR="$($PKG_CONFIG udev --variable=udevdir)"
fi
AC_SUBST(UDEVDIR)
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