!3 添加gcc依赖, 解决gcc command not found.

From: @shine_
Reviewed-by: @small_leek
Signed-off-by: @small_leek

mtx.spec

@@ -1,6 +1,6 @@
 Name:      mtx
 Version:   1.3.12
-Release:   21
+Release:   22
 Summary:   generic magtape exerciser
 License:   GPLv2
 URL:       http://mtx.sourceforge.net/
@@ -16,6 +16,7 @@ changers, autoloaders, tape libraries, or optical media jukeboxes
 %package   help
 Summary:   This package contains help documents
 Requires:  %{name} = %{version}-%{release}
+BuildRequires: gcc
 
 %description help
 Files for help with mtx.
@@ -41,6 +42,9 @@ chmod a-x contrib/config_sgen_solaris.sh contrib/mtx-changer
 %{_mandir}/man1/*
 
 %changelog
+* Web 02 Jun 2021 zhaoyao<zhaoyao32@huawei.com>  - 1.3.12-22
+- fixs faileds: /bin/sh: gcc: command not found.
+
 * Tue Nov 26 2019 gulining<gulining1@huawei.com> - 1.3.12-21
 - change patch level