Fix pkg-config files for static linking

Since ea53100d5 (PostgreSQL 12), the shipped pkg-config files have
been broken for statically linking libpq because libpgcommon and
libpgport are missing.  This patch adds those two missing private
dependencies (in a non-hardcoded way).

Reported-by: Filip Gospodinov 
Discussion: https://www.postgresql.org/message-id/flat/c7108bde-e051-11d5-a234-99beec01ce2a@gospodinov.ch

diff --git a/src/Makefile.shlib b/src/Makefile.shlib
index 29a7f6d38c8a87876e22d99c4eaf63ce9b0ccc77..4b2a62fa14cd474fcdf08648453123c8d15e750e 100644 (file)
--- a/src/Makefile.shlib
+++ b/src/Makefile.shlib
@@ -400,7 +400,7 @@ endif # PORTNAME == cygwin || PORTNAME == win32
 # those that point inside the build or source tree.  Use sort to
 # remove duplicates.  Also record the -l flags necessary for static
 # linking, but not those already covered by Requires.private.
-   echo 'Libs.private: $(sort $(filter-out -L.% -L$(top_srcdir)/%,$(filter -L%,$(LDFLAGS) $(SHLIB_LINK)))) $(filter-out $(PKG_CONFIG_REQUIRES_PRIVATE:lib%=-l%),$(filter -l%,$(SHLIB_LINK)))' >>$@
+   echo 'Libs.private: $(sort $(filter-out -L.% -L$(top_srcdir)/%,$(filter -L%,$(LDFLAGS) $(SHLIB_LINK)))) $(filter-out $(PKG_CONFIG_REQUIRES_PRIVATE:lib%=-l%),$(filter -l%,$(SHLIB_LINK_INTERNAL) $(SHLIB_LINK)))' >>$@
 
 
 ##