Merge

Author: William Kemper

.github/workflows/build-cross-compile.yml

@@ -84,7 +84,7 @@ jobs:
           - target-cpu: riscv64
             gnu-arch: riscv64
             debian-arch: riscv64
-            debian-repository: https://snapshot.debian.org/archive/debian/20240228T034848Z/
+            debian-repository: https://httpredir.debian.org/debian/
             debian-version: sid
             tolerate-sysroot-errors: true
 
@@ -131,6 +131,7 @@ jobs:
         id: create-sysroot
         run: >
           sudo debootstrap
+          --no-merged-usr
           --arch=${{ matrix.debian-arch }}
           --verbose
           --include=fakeroot,symlinks,build-essential,libx11-dev,libxext-dev,libxrender-dev,libxrandr-dev,libxtst-dev,libxt-dev,libcups2-dev,libfontconfig1-dev,libasound2-dev,libfreetype-dev,libpng-dev
@@ -151,6 +152,9 @@ jobs:
           rm -rf sysroot/usr/{sbin,bin,share}
           rm -rf sysroot/usr/lib/{apt,gcc,udev,systemd}
           rm -rf sysroot/usr/libexec/gcc
+          # /{bin,sbin,lib}/ are not symbolic links to /usr/{bin,sbin,lib}/ when debootstrap with --no-merged-usr
+          rm -rf sysroot/{sbin,bin}
+          rm -rf sysroot/lib/{udev,systemd}
         if: steps.create-sysroot.outcome == 'success' && steps.get-cached-sysroot.outputs.cache-hit != 'true'
 
       - name: 'Remove broken sysroot'

make/common/NativeCompilation.gmk

@@ -215,7 +215,21 @@ DEPENDENCY_TARGET_SED_PATTERN := \
 # The fix-deps-file macro is used to adjust the contents of the generated make
 # dependency files to contain paths compatible with make.
 #
+REWRITE_PATHS_RELATIVE = false
 ifeq ($(ALLOW_ABSOLUTE_PATHS_IN_OUTPUT)-$(FILE_MACRO_CFLAGS), false-)
+  REWRITE_PATHS_RELATIVE = true
+endif
+
+# CCACHE_BASEDIR needs fix-deps-file as makefiles use absolute filenames for
+# object files while CCACHE_BASEDIR will make ccache relativize all paths for
+# its compiler. The compiler then produces relative dependency files.
+# make does not know a relative and absolute filename is the same so it will
+# ignore such dependencies.
+ifneq ($(CCACHE), )
+  REWRITE_PATHS_RELATIVE = true
+endif
+
+ifeq ($(REWRITE_PATHS_RELATIVE), true)
   # Need to handle -I flags as both '-Ifoo' and '-I foo'.
   MakeCommandRelative = \
       $(CD) $(WORKSPACE_ROOT) && \