rpm: disabled building on CentOS < 7.4, dist reverted back to "el7".

build_module.sh

diff --git a/build_module.sh b/build_module.sh
index 0cab571..e593372 100755
--- a/build_module.sh
+++ b/build_module.sh
@@ -130,11 +130,6 @@
 	PKG_FMT=rpm
 	NGINX_PACKAGES="pcre-devel zlib-devel openssl-devel"
 	DEVEL_PACKAGES="rpm-build"
-	case `rpm --eval '%{dist}'` in
-		.el7*)
-			DEVEL_PACKAGES="$DEVEL_PACKAGES redhat-lsb-core"
-			;;
-	esac
 	PACKAGING_ROOT=${HOME}/rpmbuild/
 	PACKAGING_DIR=rpm/SPECS
 	PACKAGE_SOURCES_DIR=../SOURCES

rpm/SPECS/nginx-module.spec.in

diff --git a/rpm/SPECS/nginx-module.spec.in b/rpm/SPECS/nginx-module.spec.in
index c4aee82..5b2f952 100644
--- a/rpm/SPECS/nginx-module.spec.in
+++ b/rpm/SPECS/nginx-module.spec.in
@@ -13,16 +13,10 @@
 %endif
 
 %if 0%{?rhel} == 7
-BuildRequires: redhat-lsb-core
 %define epoch 1
 Epoch: %{epoch}
-%define os_minor %(lsb_release -rs | cut -d '.' -f 2)
-%if %{os_minor} >= 4
-%define dist .el7_4
-%else
 %define dist .el7
 %endif
-%endif
 
 %%MODULE_DEFINITIONS%%
 

rpm/SPECS/nginx-plus-module.spec.in

diff --git a/rpm/SPECS/nginx-plus-module.spec.in b/rpm/SPECS/nginx-plus-module.spec.in
index 1976520..7a423d7 100644
--- a/rpm/SPECS/nginx-plus-module.spec.in
+++ b/rpm/SPECS/nginx-plus-module.spec.in
@@ -13,14 +13,8 @@
 %endif
 
 %if 0%{?rhel} == 7
-BuildRequires: redhat-lsb-core
-%define os_minor %(lsb_release -rs | cut -d '.' -f 2)
-%if %{os_minor} >= 4
-%define dist .el7_4
-%else
 %define dist .el7
 %endif
-%endif
 
 %%MODULE_DEFINITIONS%%
 

rpm/SPECS/nginx.spec.in

diff --git a/rpm/SPECS/nginx.spec.in b/rpm/SPECS/nginx.spec.in
index 68b71c4..4fcfd20 100644
--- a/rpm/SPECS/nginx.spec.in
+++ b/rpm/SPECS/nginx.spec.in
@@ -24,22 +24,14 @@
 %endif
 
 %if 0%{?rhel} == 7
-BuildRequires: redhat-lsb-core
 %define _group System Environment/Daemons
 %define epoch 1
 Epoch: %{epoch}
 Requires(pre): shadow-utils
-%define os_minor %(lsb_release -rs | cut -d '.' -f 2)
-%if %{os_minor} >= 4
 Requires: openssl >= 1.0.2
 BuildRequires: openssl-devel >= 1.0.2
-%define dist .el7_4
-%else
-Requires: openssl >= 1.0.1
-BuildRequires: openssl-devel >= 1.0.1
 %define dist .el7
 %endif
-%endif
 
 %if 0%{?suse_version} >= 1315
 %define _group Productivity/Networking/Web/Servers