After spending a lot of time in Debian chroot's used for building
package I thought that there must be an easier way of building
circular dependencies.
The cunning feature is to build --with-sysroot & --with-build-sysroot.
Binutils & GCC support that.
In my debian packages I currently build with --prefix=/usr
--with-sysroot=/usr and now --with-build-sysroot=$(CURDIR)/sysroot
This way I can build each package in turn (binutils, headers, all-gcc,
crt, intall-gcc) with above configure options, and after each steps
doing $make install DESTDIR=$(CURDIR)/sysroot.
The benefit is that now you can do a local self-contained build with
$build_sysroot without installing anything into the intended $sysroot
for end-users.
The need is for debian packaging ;-) I can now walk into the buildd
jail with all sources and walk out with working cross-compiled
ready-for-consumption binary packages.
The hack is very crude and I understand that it might be rejected. Oh
well, at least I've tried.
Thanks.
=== modified file 'mingw-w64-crt/Makefile.am'
--- a/mingw-w64-crt/Makefile.am 2010-03-20 15:20:40 +0000
+++ b/mingw-w64-crt/Makefile.am 2010-03-25 12:09:20 +0000
@@ -13,7 +13,7 @@
#AUTOMAKE_OPTIONS = color-tests
if WITHSYSROOT
- sysincludes...@target_system_root@/$(host)/include
+ sysincludes...@target_build_system_root@/$(host)/include
withsys=--with-sysro...@target_system_root@
else
sysincludes=
=== modified file 'mingw-w64-crt/configure.ac'
--- a/mingw-w64-crt/configure.ac 2010-03-24 18:31:57 +0000
+++ b/mingw-w64-crt/configure.ac 2010-03-25 12:09:20 +0000
@@ -24,10 +24,27 @@
],[
AC_MSG_RESULT([$with_sysroot])
TARGET_SYSTEM_ROOT=$with_sysroot
+ AC_MSG_CHECKING([for build-sysroot])
+ AC_ARG_WITH([build-sysroot],
+ [AS_HELP_STRING([--with-build-sysroot=DIR],
+ [Search for include dir during build within DIR/mings.])],
+ [AS_CASE([$with_build_sysroot],
+ [no],[AC_MSG_RESULT([no])],
+ [yes],[AC_MSG_RESULT([none specified])
+ AC_MSG_ERROR([Please specify a directory to the --with-build-sysroot=DIR option])
+ ],[
+ AC_MSG_RESULT([$with_build_sysroot])
+ TARGET_BUILD_SYSTEM_ROOT=$with_build_sysroot
+ ])],
+ [
+ TARGET_BUILD_SYSTEM_ROOT=$with_sysroot
+
+ ])
AC_MSG_CHECKING([if sysroot contains an include directory])
- AS_IF([test -d $with_sysroot/$host/include],
- [AC_MSG_RESULT([yes])],
- [
+ AS_IF([test -d $with_build_sysroot/$host/include],
+ [AC_MSG_RESULT([yes])
+ export PATH=$TARGET_BUILD_SYSTEM_ROOT/bin$PATH_SEPARATOR$PATH
+ ],[
AC_MSG_RESULT([no])
AC_MSG_ERROR([Sysroot directory does not contain $host/include])
with_sysroot=no
@@ -37,10 +54,14 @@
[
AC_MSG_RESULT([no])
TARGET_SYSTEM_ROOT=
+ TARGET_BUILD_SYSTEM_ROOT=
with_sysroot=no
])
AM_CONDITIONAL(WITHSYSROOT, test $with_sysroot != no)
AC_SUBST(TARGET_SYSTEM_ROOT)
+AC_SUBST(TARGET_BUILD_SYSTEM_ROOT)
+
+echo $PATH
# Checks for programs.
# Checks for headers, libs, etc need to utilize the sysroot... no idea how
------------------------------------------------------------------------------
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