From: Laurent Bercot <ska-skaware@skarnet.org>
Date: Mon, 24 Jan 2022 11:44:29 +0000
Subject: [PATCH]  Apply user-provided CPPFLAGS, CFLAGS and LDFLAGS during
 autodetection

Backported-from: d9f541c2b3af (" Apply user-provided CPPFLAGS, CFLAGS and LDFLAGS during autodetection")
See-also: http://skarnet.org/lists/skaware/1656.html
---
diff --git a/configure b/configure
index 55f34f8..49b3678 100755
--- a/configure
+++ b/configure
@@ -99,7 +99,7 @@ stripdir () {
 tryflag () {
   echo "Checking whether compiler accepts $2 ..."
   echo "typedef int x;" > "$tmpc"
-  if $CC_AUTO "$2" -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+  if $CC_AUTO $CPPFLAGS_POST $CFLAGS_POST "$2" -c -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
     echo "  ... yes"
     eval "$1=\"\${$1} \$2\""
     eval "$1=\${$1# }"
@@ -113,7 +113,7 @@ tryflag () {
 tryldflag () {
   echo "Checking whether linker accepts $2 ..."
   echo "typedef int x;" > "$tmpc"
-  if $CC_AUTO -nostdlib "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
+  if $CC_AUTO $CPPFLAGS_POST $CFLAGS_POST $LDFLAGS_POST -nostdlib "$2" -o /dev/null "$tmpc" >/dev/null 2>&1 ; then
     echo "  ... yes"
     eval "$1=\"\${$1} \$2\""
     eval "$1=\${$1# }"
-- 
2.34.1