Package: gcc-4.0 Version: 4.0.2-2 Tags: patch Currently, for platforms which natively build a biarch GCC, such as powerpc, the GCC package also attempts to build a biarch cross-compiler when targetting that platform. This would require the installation of cross-compilation libraries for two different cross-architectures, rather than just one, in order to build and use GCC; otherwise, the build fails when attempting to find a libc for the alternate target. In addition, dpkg-cross doesn't appear to support converting and installing library packages for the alternate architectures. It also seems far more likely that when setting up a cross-compilation environment, one would simply construct two cross-compilers, one for each of the two architectures, rather than one two-target compiler. The attached patch disables biarch when building a cross-compiler. Note that the logic assumes a 64-bit alternate platform; it may need to be made more sophisticated to work for 32-bit alternate platforms. I did not include such logic, because I was not targetting a platform with a 32-bit alternate, and thus would not test that code path in my GCC cross-compiler build. - Josh Triplett
diff -Naur gcc-4.0-4.0.2.orig/debian/rules.defs gcc-4.0-4.0.2/debian/rules.defs --- gcc-4.0-4.0.2.orig/debian/rules.defs 2005-10-14 03:40:30.000000000 -0700 +++ gcc-4.0-4.0.2/debian/rules.defs 2005-10-14 03:44:05.000000000 -0700 @@ -670,6 +670,18 @@ endif endif +ifdef DEB_CROSS + with_lib64gcc := no + with_lib64cxx := no + with_lib64objc := no + with_lib64ffi := no + with_lib64gcj := no + with_lib64fortran := no + + biarch := disabled for cross build + biarch32 := disabled for cross build +endif + ifeq ($(biarch32),yes) with_32bit_check := $(shell CC="gcc -m32" sh debian/runcheck.sh) endif
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