From 00e955558c66f80acad9225d2eae82459d87dc54 Mon Sep 17 00:00:00 2001
From: NIIBE Yutaka <gniibe@fsij.org>
Date: Tue, 23 Oct 2018 15:36:15 +0900
Subject: build: Fix detecting build on multiarch environment.

* configure.ac: Rough match by shell pattern.

--

Since libdir is i386-linux-gnu on Debian i686-linux-gnu machine,
exact match to host_alias didn't work.

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
---
 configure.ac | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/configure.ac b/configure.ac
index 25719d4..b735fa6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -651,13 +651,16 @@ AC_ARG_ENABLE([tests], AC_HELP_STRING([--disable-tests],
                      build_tests=$enableval, build_tests=yes)
 AM_CONDITIONAL([BUILD_TESTS], [test "x$build_tests" != xno])
 
-if expr $libdir : ".*/$host_alias\$" >/dev/null; then
-  # Looks like it's multiarch, then,
-  # let the script detect host architecture at runtime
-  pkg_config_libdir=auto
-else
-  pkg_config_libdir=$libdir/pkgconfig
-fi
+case "$libdir" in
+  */*-*-*)
+    # Looks like it's multiarch, then,
+    # let the script detect host architecture at runtime
+    pkg_config_libdir=auto
+    ;;
+  *)
+    pkg_config_libdir=$libdir/pkgconfig
+    ;;
+esac
 AC_SUBST(pkg_config_libdir)
 #
 # Substitution
-- 
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