Packages: added pcre2 to build depends.

While at it, propagate unit build depends to modules.

pkg/rpm/unit.module.spec.in

@@ -7,6 +7,15 @@
 %define dist .el7
 %endif
 
+%if 0%{?rhel}%{?fedora}
+BuildRequires: gcc
+BuildRequires: openssl-devel
+%endif
+
+%if 0%{?suse_version} >= 1315
+BuildRequires: libopenssl-devel
+%endif
+
 %define unit_version %%UNIT_VERSION%%
 %define unit_release %%UNIT_RELEASE%%%{?dist}.ngx
 
@@ -29,6 +38,8 @@ Source0: unit-%{version}.tar.gz
 
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
+BuildRequires: pcre2-devel
+
 Requires: unit == %%UNIT_VERSION%%-%%UNIT_RELEASE%%%{?dist}.ngx
 
 %description

pkg/rpm/unit.spec.in

@@ -45,6 +45,8 @@ Requires(post):    systemd
 Requires(preun):   systemd
 Requires(postun):  systemd
 
+BuildRequires: pcre2-devel
+
 %description
 NGINX Unit is a runtime and delivery environment for modern distributed
 applications. It runs the application code in multiple languages