From 43ee3c7f543b48f8ce804257cca10ec397713096 Mon Sep 17 00:00:00 2001
From: Jakob Egger <jakob@eggerapps.at>
Date: Thu, 3 Oct 2019 07:28:57 +0000
Subject: Only call pkg-config in configure when necessary

Only call pkg-config in the configure script when the variables $SQLITE3_CFLAGS and $SQLITE3_LIBS are not set.

This allows building PROJ when pkg-config is not available.
---
 configure.ac | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/configure.ac b/configure.ac
index a3d0d021..fc1b0ead 100644
--- a/configure.ac
+++ b/configure.ac
@@ -307,7 +307,9 @@ dnl ---------------------------------------------------------------------------
 dnl Check for sqlite3 library and binary
 dnl ---------------------------------------------------------------------------
 
-PKG_CHECK_MODULES([SQLITE3], [sqlite3 >= 3.7])
+if test "x$SQLITE3_CFLAGS$SQLITE3_LIBS" = "x" ; then
+    PKG_CHECK_MODULES([SQLITE3], [sqlite3 >= 3.7])
+fi
 AC_SUBST(SQLITE3_CFLAGS,$SQLITE3_CFLAGS)
 AC_SUBST(SQLITE3_LIBS,$SQLITE3_LIBS)
 
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