From 200164d46732f6a2fb9d81aa9650c006db4148e6 Mon Sep 17 00:00:00 2001
From: Christophe Lyon <christophe.lyon@arm.com>
Date: Fri, 4 Nov 2022 11:06:47 +0100
Subject: [PATCH] configure: require libzstd >= 1.4.0

gas uses ZSTD_compressStream2 which is only available with libzstd >=
1.4.0, leading to build errors when an older version is installed.

This patch updates the check libzstd presence to check its version is
>= 1.4.0. However, since gas seems to be the only component requiring
such a recent version this may imply that we disable ZSTD support for
all components although some would still benefit from an older
version.

I ran 'autoreconf -f' in all directories containing a configure.ac
file, using vanilla autoconf-2.69 and automake-1.15.1. I noticed
several errors from autoheader in readline, as well as warnings in
intl, but they are unrelated to this patch.

This should fix some of the buildbots.

OK for trunk?

Thanks,

Christophe
---
 bfd/configure      | 20 ++++++++++----------
 binutils/configure | 20 ++++++++++----------
 config/zstd.m4     |  2 +-
 gas/configure      | 20 ++++++++++----------
 gdb/configure      | 20 ++++++++++----------
 ld/configure       | 20 ++++++++++----------
 libctf/configure   | 20 ++++++++++----------
 7 files changed, 61 insertions(+), 61 deletions(-)

diff --git a/bfd/configure b/bfd/configure
index 1c1760670cb..5c6e3821a13 100755
--- a/bfd/configure
+++ b/bfd/configure
@@ -13167,19 +13167,19 @@ fi
 if test "$with_zstd" != no; then :
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
-$as_echo_n "checking for libzstd... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd >= 1.4.0" >&5
+$as_echo_n "checking for libzstd >= 1.4.0... " >&6; }
 
 if test -n "$ZSTD_CFLAGS"; then
     pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -13191,12 +13191,12 @@ if test -n "$ZSTD_LIBS"; then
     pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -13241,9 +13241,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         else
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZSTD_PKG_ERRORS" >&5
diff --git a/binutils/configure b/binutils/configure
index 2e33584e548..6176d699e57 100755
--- a/binutils/configure
+++ b/binutils/configure
@@ -13536,19 +13536,19 @@ fi
 if test "$with_zstd" != no; then :
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
-$as_echo_n "checking for libzstd... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd >= 1.4.0" >&5
+$as_echo_n "checking for libzstd >= 1.4.0... " >&6; }
 
 if test -n "$ZSTD_CFLAGS"; then
     pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -13560,12 +13560,12 @@ if test -n "$ZSTD_LIBS"; then
     pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -13610,9 +13610,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         else
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZSTD_PKG_ERRORS" >&5
diff --git a/config/zstd.m4 b/config/zstd.m4
index 6da4db68c58..eb34c0f36d7 100644
--- a/config/zstd.m4
+++ b/config/zstd.m4
@@ -12,7 +12,7 @@ AC_ARG_WITH(zstd,
   [], [with_zstd=auto])
 
 AS_IF([test "$with_zstd" != no],
-  [PKG_CHECK_MODULES(ZSTD, [libzstd], [
+  [PKG_CHECK_MODULES(ZSTD, [libzstd >= 1.4.0], [
     AC_DEFINE(HAVE_ZSTD, 1, [Define to 1 if zstd is enabled.])
   ], [
     if test "$with_zstd" = yes; then
diff --git a/gas/configure b/gas/configure
index cae14c066d2..d9800f8a53d 100755
--- a/gas/configure
+++ b/gas/configure
@@ -14135,19 +14135,19 @@ fi
 if test "$with_zstd" != no; then :
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
-$as_echo_n "checking for libzstd... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd >= 1.4.0" >&5
+$as_echo_n "checking for libzstd >= 1.4.0... " >&6; }
 
 if test -n "$ZSTD_CFLAGS"; then
     pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -14159,12 +14159,12 @@ if test -n "$ZSTD_LIBS"; then
     pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -14209,9 +14209,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         else
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZSTD_PKG_ERRORS" >&5
diff --git a/gdb/configure b/gdb/configure
index 33677262783..811a598bc8f 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -8283,19 +8283,19 @@ fi
 if test "$with_zstd" != no; then :
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
-$as_echo_n "checking for libzstd... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd >= 1.4.0" >&5
+$as_echo_n "checking for libzstd >= 1.4.0... " >&6; }
 
 if test -n "$ZSTD_CFLAGS"; then
     pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -8307,12 +8307,12 @@ if test -n "$ZSTD_LIBS"; then
     pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -8357,9 +8357,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         else
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZSTD_PKG_ERRORS" >&5
diff --git a/ld/configure b/ld/configure
index 7906f52aadf..79000452c95 100755
--- a/ld/configure
+++ b/ld/configure
@@ -17095,19 +17095,19 @@ fi
 if test "$with_zstd" != no; then :
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
-$as_echo_n "checking for libzstd... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd >= 1.4.0" >&5
+$as_echo_n "checking for libzstd >= 1.4.0... " >&6; }
 
 if test -n "$ZSTD_CFLAGS"; then
     pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -17119,12 +17119,12 @@ if test -n "$ZSTD_LIBS"; then
     pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -17169,9 +17169,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         else
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZSTD_PKG_ERRORS" >&5
diff --git a/libctf/configure b/libctf/configure
index 176b3d6b918..a5c58176b2c 100755
--- a/libctf/configure
+++ b/libctf/configure
@@ -13073,19 +13073,19 @@ fi
 if test "$with_zstd" != no; then :
 
 pkg_failed=no
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd" >&5
-$as_echo_n "checking for libzstd... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for libzstd >= 1.4.0" >&5
+$as_echo_n "checking for libzstd >= 1.4.0... " >&6; }
 
 if test -n "$ZSTD_CFLAGS"; then
     pkg_cv_ZSTD_CFLAGS="$ZSTD_CFLAGS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_CFLAGS=`$PKG_CONFIG --cflags "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -13097,12 +13097,12 @@ if test -n "$ZSTD_LIBS"; then
     pkg_cv_ZSTD_LIBS="$ZSTD_LIBS"
  elif test -n "$PKG_CONFIG"; then
     if test -n "$PKG_CONFIG" && \
-    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd\""; } >&5
-  ($PKG_CONFIG --exists --print-errors "libzstd") 2>&5
+    { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libzstd >= 1.4.0\""; } >&5
+  ($PKG_CONFIG --exists --print-errors "libzstd >= 1.4.0") 2>&5
   ac_status=$?
   $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
   test $ac_status = 0; }; then
-  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd" 2>/dev/null`
+  pkg_cv_ZSTD_LIBS=`$PKG_CONFIG --libs "libzstd >= 1.4.0" 2>/dev/null`
 		      test "x$?" != "x0" && pkg_failed=yes
 else
   pkg_failed=yes
@@ -13147,9 +13147,9 @@ else
         _pkg_short_errors_supported=no
 fi
         if test $_pkg_short_errors_supported = yes; then
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         else
-	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd" 2>&1`
+	        ZSTD_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libzstd >= 1.4.0" 2>&1`
         fi
 	# Put the nasty error message in config.log where it belongs
 	echo "$ZSTD_PKG_ERRORS" >&5
-- 
2.30.2