Ship the compiled magic file in a separate package so libmagic1 is finally multi-arch compliant. Closes: #670006

debian/control

@@ -1,7 +1,7 @@
 Source: file
 Maintainer: Christoph Biedl <debian.axhn@manchmal.in-ulm.de>
 Homepage: http://www.darwinsys.com/file/
-Standards-Version: 3.9.5
+Standards-Version: 3.9.8
 Build-Depends: debhelper (>= 9.20141010~),
     dh-autoreconf,
     dh-python,
@@ -30,6 +30,7 @@ Architecture: any
 Pre-Depends:
     ${misc:Pre-Depends},
 Depends: ${misc:Depends}, ${shlibs:Depends},
+    libmagic-mgc (= ${binary:Version}),
 Suggests:
     file,
 Section: libs
@@ -38,6 +39,21 @@ Description: Recognize the type of data in a file using "magic" numbers - librar
  This library can be used to classify files according to magic number
  tests. It implements the core functionality of the file command.
 
+Package: libmagic-mgc
+Architecture: any
+Depends: ${misc:Depends},
+Breaks:
+    libmagic1 (<< 1:5.28-4~),
+Replaces:
+    libmagic1 (<< 1:5.28-4~),
+Section: libs
+Multi-Arch: foreign
+Description: File type determination library using "magic" numbers (compiled magic file)
+ This package provides the compiled magic file "magic.mgc". It has
+ been separated from libmagic1 in order to meet the multiarch
+ requirements without breaking applications that expect this file
+ at its absolute path.
+
 Package: libmagic-dev
 Architecture: any
 Depends: ${misc:Depends},

debian/libmagic-mgc.README.Debian

@@ -0,0 +1,8 @@
+
+Between architectures, the compiled magic at /usr/lib/file/magic.mgc
+differs only in the endianness. The libmagic library can auto-detect
+wrong endianness and handle that situation gracefully, at a significant
+performance cost though.
+
+Therefore: If you run file/libmagic in a mixed-endianness multi-arch
+setup, choose the architecture for libmagic-mgc wisely.

debian/libmagic-mgc.install

@@ -0,0 +1 @@
+usr/share/file/magic.mgc    usr/lib/file/

debian/libmagic-mgc.links

@@ -0,0 +1,7 @@
+
+# upstream and many applications expect the magic in /usr/share/misc/,
+# other in /usr/share/file/. The compiled magic however is
+# arch-dependent and must therefore be in /usr/lib/
+# Provide symlinks in the hope everybody gets satisfied.
+/usr/lib/file/magic.mgc     /usr/share/file/magic.mgc
+/usr/lib/file/magic.mgc     /usr/share/misc/magic.mgc

debian/libmagic1.install

@@ -1,4 +1,3 @@
 etc
 usr/lib/*/*.so.*
-usr/share/file/magic.mgc    usr/lib/file/
 usr/share/man/man5

debian/libmagic1.links

@@ -1,8 +1,5 @@
 
 # upstream and many applications expect the magic in /usr/share/misc/,
-# other in /usr/share/file/. The compiled magic however is
-# arch-dependent and must therefore be in /usr/lib/
+# other in /usr/share/file/.
 # Provide symlinks in the hope everybody gets satisfied.
-/usr/lib/file/magic.mgc     /usr/share/file/magic.mgc
-/usr/lib/file/magic.mgc     /usr/share/misc/magic.mgc
 /usr/share/file/magic       /usr/share/misc/magic

debian/rules

@@ -97,7 +97,7 @@ ifeq ($(DEB_BUILD_ARCH),$(DEB_HOST_ARCH))
 	# use the just built file in dh_shlibdeps
 	PATH=$(CURDIR)/debian/file/usr/bin:$$PATH \
 		LD_LIBRARY_PATH=$(CURDIR)/debian/libmagic1/usr/lib/$(DEB_HOST_MULTIARCH)$${LD_LIBRARY_PATH+:$${LD_LIBRARY_PATH}} \
-		MAGIC=$(CURDIR)/debian/libmagic1/usr/share/file/magic.mgc \
+		MAGIC=$(CURDIR)/debian/libmagic-mgc/usr/share/file/magic.mgc \
 		dh_shlibdeps -Llibmagic1 -ldebian/libmagic1/usr/lib
 else
 	dh_shlibdeps -Llibmagic1 -ldebian/libmagic1/usr/lib