Optimize builtin SPEC file

1. optimize writing, add <Provides> SPEC Directive, improve install command and update version to 2.0.19
2. adjust assignment way of variable <prefix> and <DESTDIR> in makefile

flawfinder.spec

@@ -1,14 +1,20 @@
-Name: flawfinder
-Summary: Examines C/C++ source code for security flaws
-Version: 2.0.18
-Release: 1%{?dist}
-License: GPLv2+
-Group: Development/Tools
-URL: http://dwheeler.com/flawfinder/
-Source: http://dwheeler.com/flawfinder/%{name}-%{version}.tar.gz
-Requires: python
-BuildArch: noarch
-BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+Name:              flawfinder
+Summary:           Examines C/C++ source code for security flaws
+Version:           2.0.19
+Release:           1%{?dist}
+Group:             Development/Tools
+
+License:           GPLv2+
+URL:               http://dwheeler.com/flawfinder/
+Source:            http://dwheeler.com/flawfinder/%{name}-%{version}.tar.gz
+
+BuildArch:         noarch
+BuildRequires:     flex
+BuildRequires:     make
+BuildRoot:         %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
+
+Provides:          flawfinder = %{version}-%{release}
+Requires:          python
 
 %description
 Flawfinder scans through C/C++ source code,
@@ -19,12 +25,10 @@ By default it reports hits sorted by severity, with the riskiest lines first.
 %setup  -q
 
 %build
-make %{?_smp_mflags}
+%{__make} %{?_smp_mflags}
 
 %install
-rm -rf $RPM_BUILD_ROOT
-install -m755 -D flawfinder ${RPM_BUILD_ROOT}%{_bindir}/flawfinder
-install -m644 -D flawfinder.1 ${RPM_BUILD_ROOT}%{_mandir}/man1/flawfinder.1
+%{__make} install DESTDIR=${RPM_BUILD_ROOT} prefix=%{_usr}
 
 %clean
 rm -rf $RPM_BUILD_ROOT
@@ -36,6 +40,10 @@ rm -rf $RPM_BUILD_ROOT
 %{_mandir}/man1/*
 
 %changelog
+* Tue Sep 21 2021 Weilun Fong <wlf@zhishan-iot.tk>
+- Improve install command
+- Add <Provides> SPEC Directive
+
 * Mon Aug 27 2007 Horst H. von Brand <vonbrand@inf.utfsm.cl>  1.27-2
 - Fix specfile as per Fedora guidelines
 
@@ -43,5 +51,3 @@ rm -rf $RPM_BUILD_ROOT
 - changed build architecture to noarch
 - replaced hardcoded directories by rpm macros
 - removed several rpmlint warnings/errors
-
-# vim:set ai ts=4 sw=4:

makefile

@@ -6,7 +6,7 @@
 # how to change version numbers.
 
 NAME=flawfinder
-VERSION=2.0.18
+VERSION=2.0.19
 RPM_VERSION=1
 VERSIONEDNAME=$(NAME)-$(VERSION)
 ARCH=noarch
@@ -19,7 +19,7 @@ SAMPLE_DIR=/usr/src/linux-2.2.16
 # not notice any changes.  We define exec_prefix oddly so we can
 # quietly merge these 2 systems:
 
-prefix=/usr/local
+prefix?=/usr/local
 INSTALL_DIR=$(prefix)
 exec_prefix=$(INSTALL_DIR)
 bindir=$(exec_prefix)/bin
@@ -44,7 +44,7 @@ PYTHONEXT=
 
 RPMBUILD=rpmbuild
 
-DESTDIR=
+DESTDIR?=
 
 TESTDIR=test/