Do not error about missing zstd unless --with-zstd.

	PR lto/94259
	* configure.ac: Report error only when --with-zstd
	is used.
	* configure: Regenerate.

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index b2743d6..baf0ab7 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,10 @@
+2020-03-25  Martin Liska  <mliska@suse.cz>
+
+       PR lto/94259
+       * configure.ac: Report error only when --with-zstd
+       is used.
+       * configure: Regenerate.
+
 2020-03-25  Jakub Jelinek  <jakub@redhat.com>
 
        PR target/94308

diff --git a/gcc/configure b/gcc/configure
index b4231fe..dfdc5d8 100755 (executable)
--- a/gcc/configure
+++ b/gcc/configure
@@ -10019,7 +10019,7 @@ if test $gcc_cv_header_zstd_h = yes; then
 
 $as_echo "#define HAVE_ZSTD_H 1" >>confdefs.h
 
-else
+elif test "x$with_zstd" != x; then
     as_fn_error $? "Unable to find zstd.h.  See config.log for details." "$LINENO" 5
 fi
 

diff --git a/gcc/configure.ac b/gcc/configure.ac
index 0051963..fdee9ea 100644 (file)
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1371,7 +1371,7 @@ AC_MSG_RESULT($gcc_cv_header_zstd_h)
 if test $gcc_cv_header_zstd_h = yes; then
   AC_DEFINE(HAVE_ZSTD_H, 1,
        [Define if you have a working <zstd.h> header file.])
-else
+elif test "x$with_zstd" != x; then
     as_fn_error $? "Unable to find zstd.h.  See config.log for details." "$LINENO" 5
 fi