Add “gcc | c-compiler” to libdpkg-perl Suggests, due to Dpkg::Arch usage

Do not add it as a hard dependency, as the library can be used on system
where a compiler is really not appropriate.

Closes: #671198

debian/changelog

@@ -13,6 +13,8 @@ dpkg (1.16.4) UNRELEASED; urgency=low
     for dpkg frontends. Closes: #670897
   * Clarify in dpkg(1) when --force-conf* options cause action.
     Suggested by Sven Joachim <svenjoac@gmx.de>. Closes: #391818
+  * Add “gcc | c-compiler” to libdpkg-perl Suggests, due to Dpkg::Arch usage.
+    Closes: #671198
 
   [ Updated man page translations ]
   * German (Helge Kreutzmann).

debian/control

@@ -70,7 +70,7 @@ Architecture: all
 Multi-Arch: foreign
 Depends: dpkg (>= 1.15.8), perl, libtimedate-perl, ${misc:Depends}
 Recommends: bzip2, xz-utils
-Suggests: debian-keyring, gnupg, gpgv, binutils, patch
+Suggests: debian-keyring, gnupg, gpgv, gcc | c-compiler, binutils, patch
 Breaks: dpkg-dev (<< 1.15.6)
 Replaces: dpkg (<< 1.15.8), dpkg-dev (<< 1.15.6)
 Description: Dpkg perl modules