debian/changelog

 spatialindex (1.8.5-8) UNRELEASED; urgency=medium
 
-  * Bump Standards-Version to 4.2.0, no changes.
+  * Bump Standards-Version to 4.2.1, no changes.
+  * Add Build-Depends-Package field to symbols files.
 
  -- Bas Couwenberg <sebastic@debian.org>  Sat, 04 Aug 2018 14:47:58 +0200
 

debian/control

@@ -8,7 +8,7 @@ Build-Depends: debhelper (>= 9.20160114),
                autotools-dev,
                dh-autoreconf,
                pkg-kde-tools
-Standards-Version: 4.2.0
+Standards-Version: 4.2.1
 Vcs-Browser: https://salsa.debian.org/debian-gis-team/libspatialindex
 Vcs-Git: https://salsa.debian.org/debian-gis-team/libspatialindex.git
 Homepage: http://libspatialindex.github.io/

debian/libspatialindex-c4v5.symbols

 # SymbolsHelper-Confirmed: 1.8.5 alpha amd64 arm64 armel armhf hppa hurd-i386 i386 ia64 kfreebsd-amd64 kfreebsd-i386 m68k mips mips64el mipsel powerpc powerpcspe ppc64 ppc64el riscv64 s390x sh4 sparc sparc64 x32
 libspatialindex_c.so.4 #PACKAGE# #MINVER#
+* Build-Depends-Package: libspatialindex-dev
  Error_GetErrorCount@Base 1.8.1
  Error_GetLastErrorMethod@Base 1.8.1
  Error_GetLastErrorMsg@Base 1.8.1

debian/libspatialindex4v5.symbols

 # SymbolsHelper-Confirmed: 1.8.5 alpha amd64 arm64 armel armhf hppa hurd-i386 i386 ia64 kfreebsd-amd64 kfreebsd-i386 m68k mips mips64el mipsel powerpc powerpcspe ppc64 ppc64el riscv64 s390x sh4 sparc sparc64 x32
 libspatialindex.so.4 #PACKAGE# #MINVER#
+* Build-Depends-Package: libspatialindex-dev
  _Z16CheckFilesExistsRN5Tools11PropertySetE@Base 1.8.1
  _ZN12SpatialIndex10TimeRegion12makeInfiniteEj@Base 1.8.1
  _ZN12SpatialIndex10TimeRegion13makeDimensionEj@Base 1.8.1