From 393cbf00da2eec29a93d01bd7301034f1928bb6f Mon Sep 17 00:00:00 2001
From: panxiaohe <panxh.life@foxmail.com>
Date: Mon, 19 Apr 2021 19:50:52 +0800
Subject: [PATCH] run check in parallel and fix a concurrent build issue

---
 ...a-concurrent-build-issue-in-examples.patch | 34 +++++++++++++++++++
 bison.spec                                    | 12 +++++--
 2 files changed, 44 insertions(+), 2 deletions(-)
 create mode 100644 backport-build-fix-a-concurrent-build-issue-in-examples.patch

diff --git a/backport-build-fix-a-concurrent-build-issue-in-examples.patch b/backport-build-fix-a-concurrent-build-issue-in-examples.patch
new file mode 100644
index 0000000..84a5da4
--- /dev/null
+++ b/backport-build-fix-a-concurrent-build-issue-in-examples.patch
@@ -0,0 +1,34 @@
+From 541943ee04ee22101bbbde2386272b1cad635132 Mon Sep 17 00:00:00 2001
+From: Akim Demaille <akim.demaille@gmail.com>
+Date: Sun, 6 Sep 2020 10:08:22 +0200
+Subject: [PATCH] build: fix a concurrent build issue in examples
+
+Reported by Thomas Deutschmann <whissi@gentoo.org>.
+https://lists.gnu.org/r/bug-bison/2020-09/msg00010.html
+
+* examples/c/lexcalc/local.mk: scan.o depends on parse.[ch].
+---
+ examples/c/lexcalc/local.mk | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/examples/c/lexcalc/local.mk b/examples/c/lexcalc/local.mk
+index b73887e..636275c 100644
+--- a/examples/c/lexcalc/local.mk
++++ b/examples/c/lexcalc/local.mk
+@@ -31,6 +31,13 @@ endif FLEX_WORKS
+ 
+ %D%/parse.c: $(dependencies)
+ 
++# Tell Make scan.o depends on parse.h, except that Make sees only
++# parse.c, not parse.h.  We can't use BUILT_SOURCES to this end, since
++# we use the built bison.
++%D%/lexcalc$(DASH)scan.o: %D%/parse.c
++# Likewise, but for Automake before 1.16.
++%D%/examples_c_lexcalc_lexcalc$(DASH)scan.o: %D%/parse.c
++
+ EXTRA_DIST += %D%/lexcalc.test
+ dist_lexcalc_DATA = %D%/parse.y %D%/scan.l %D%/Makefile %D%/README.md
+ CLEANFILES += %D%/parse.[ch] %D%/scan.c %D%/parse.output
+-- 
+1.8.3.1
+
diff --git a/bison.spec b/bison.spec
index 629191b..8841f9f 100644
--- a/bison.spec
+++ b/bison.spec
@@ -1,10 +1,11 @@
 Name:           bison
 Version:        3.6.4
-Release:        1
+Release:        2
 Summary:        A GNU general-purpose parser generator
 License:        GPLv3+
 URL:            http://www.gnu.org/software/bison/
 Source0:        https://ftp.gnu.org/gnu/bison/bison-%{version}.tar.xz
+Patch0:         backport-build-fix-a-concurrent-build-issue-in-examples.patch
 
 BuildRequires:  gcc-c++ autoconf automake m4 flex
 Requires(post): info
@@ -45,7 +46,7 @@ This package contains language support files and locale.
 %make_build
 
 %check
-make check
+%make_build check
 
 %install
 %make_install
@@ -89,6 +90,13 @@ fi
 %{_datadir}/locale/*/LC_MESSAGES/bison-gnulib.mo
 
 %changelog
+* Mon Apr 19 2021 panxiaohe <panxiaohe@huawei.com> - 3.6.4-2
+- Type:enhancement
+- ID:NA
+- SUG:NA
+- DESC:use make macros to run check in parallel;
+       fix a concurrent build issue in examples
+
 * Thu Aug 20 2020 SimpleUpdate Robot <tc@openeuler.org> - 3.6.4-1
 - Upgrade to version 3.6.4
 
-- 
Gitee