DEP17: Move files to /usr

debian/changelog

@@ -1,3 +1,17 @@
+glibc (2.38-6deepin9) unstable; urgency=medium
+
+  * Declare Breaks against systemd and sysvinit (See: #1072373,
+    #1072375)
+
+ -- Tianyu Chen <[email protected]>  Fri, 06 Dec 2024 16:14:54 +0800
+
+glibc (2.38-6deepin8) unstable; urgency=medium
+
+  * DEP17: Move files to /usr.
+  * Add libc-upgrade and libc-major-upgrade trigger.
+
+ -- Tianyu Chen <[email protected]>  Thu, 05 Dec 2024 10:39:00 +0800
+
 glibc (2.38-6deepin7) unstable; urgency=medium
 
   * Add LoongArch TLSDESC and tunable support from upstream.

debian/control

@@ -165,7 +165,7 @@ Recommends: libidn2-0 (>= 2.0.5~)
 Suggests: glibc-doc, debconf | debconf-2.0, libc-l10n, locales [!hurd-any], libnss-nis, libnss-nisplus
 Provides: libc6-sparcv9b [sparc sparc64], libc0.3-i686 [hurd-i386], libc6-i686 [i386]
 Conflicts: libc6-i686 [i386], libc6.1-alphaev67 [alpha]
-Breaks: nscd (<< 2.38), locales (<< 2.38), locales-all (<< 2.38), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~)
+Breaks: nscd (<< 2.38), locales (<< 2.38), locales-all (<< 2.38), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~), systemd (<< 255.2-4deepin4~), sysvinit (<< 3.09-2~)
 Replaces: libc6-amd64 [amd64],
           libc6-i386 [i386],
           libc0.3-i686 [hurd-i386],
@@ -237,7 +237,7 @@ Recommends: libidn2-0 (>= 2.0.5~)
 Suggests: glibc-doc, debconf | debconf-2.0, libc-l10n, locales [!hurd-any], libnss-nis, libnss-nisplus
 Provides: libc6-sparcv9b [sparc sparc64], libc0.3-i686 [hurd-i386], libc6-i686 [i386]
 Conflicts: libc6-i686 [i386], libc6.1-alphaev67 [alpha]
-Breaks: nscd (<< 2.38), locales (<< 2.38), locales-all (<< 2.38), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~)
+Breaks: nscd (<< 2.38), locales (<< 2.38), locales-all (<< 2.38), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~), systemd (<< 255.2-4deepin4~), sysvinit (<< 3.09-2~)
 Replaces: libc6-amd64 [amd64],
           libc6-i386 [i386],
           libc0.3-i686 [hurd-i386],
@@ -309,7 +309,7 @@ Recommends: libidn2-0 (>= 2.0.5~)
 Suggests: glibc-doc, debconf | debconf-2.0, libc-l10n, locales [!hurd-any], libnss-nis, libnss-nisplus
 Provides: libc6-sparcv9b [sparc sparc64], libc0.3-i686 [hurd-i386], libc6-i686 [i386]
 Conflicts: libc6-i686 [i386], libc6.1-alphaev67 [alpha]
-Breaks: nscd (<< 2.38), locales (<< 2.38), locales-all (<< 2.38), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~)
+Breaks: nscd (<< 2.38), locales (<< 2.38), locales-all (<< 2.38), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~), systemd (<< 255.2-4deepin4~), sysvinit (<< 3.09-2~)
 Replaces: libc6-amd64 [amd64],
           libc6-i386 [i386],
           libc0.3-i686 [hurd-i386],

debian/control.in/libc

@@ -8,7 +8,7 @@ Recommends: libidn2-0 (>= 2.0.5~)
 Suggests: glibc-doc, debconf | debconf-2.0, libc-l10n, locales [!hurd-any], libnss-nis, libnss-nisplus
 Provides: libc6-sparcv9b [sparc sparc64], libc0.3-i686 [hurd-i386], libc6-i686 [i386]
 Conflicts: libc6-i686 [i386], libc6.1-alphaev67 [alpha]
-Breaks: nscd (<< @DEB_VERSION_UPSTREAM@), locales (<< @DEB_VERSION_UPSTREAM@), locales-all (<< @DEB_VERSION_UPSTREAM@), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~)
+Breaks: nscd (<< @DEB_VERSION_UPSTREAM@), locales (<< @DEB_VERSION_UPSTREAM@), locales-all (<< @DEB_VERSION_UPSTREAM@), gnumach-image-1.8-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-486-dbg (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486 (<< 2:1.8+git20210923~), gnumach-image-1.8-xen-486-dbg (<< 2:1.8+git20210923~), hurd (<< 1:0.9.git20220301-2), python3-iptables (<< 1.0.0-2), fakechroot (<< 2.19-3.5), tinydns (<< 1:1.05-14), chrony (<< 4.2-3~), valgrind (<< 1:3.19.0-1~), firefox (<< 91~), firefox-esr (<< 91~), systemd (<< 255.2-4deepin4~), sysvinit (<< 3.09-2~)
 Replaces: libc6-amd64 [amd64],
           libc6-i386 [i386],
           libc0.3-i686 [hurd-i386],

debian/debhelper.in/libc-alt.install

@@ -1,6 +1,5 @@
 # This file is used for biarch libraries.
-TMPDIR/RTLDDIR/*.so* RTLDDIR
-TMPDIR/SLIBDIR/*.so* SLIBDIR
+TMPDIR/SLIBDIR/*.so* /usrSLIBDIR
 TMPDIR/LIBDIR/gconv/* LIBDIR/gconv/
 
 TMPDIR/etc/ld.so.conf.d /etc

debian/debhelper.in/libc-alt.postinst

@@ -0,0 +1,31 @@
+#!/bin/sh
+set -e
+
+# begin-remove-after: released:forky
+if [ "$1" = configure ]; then
+    # These symbolic links are either included in base-files or created by
+    # base-files via triggers, but we also create them to avoid a versioned
+    # dependency on base-files. Cleanup will be handled by base-files.
+    if ! [ -h "$DPKG_ROOTRTLDDIR" ]; then
+        ln -s "usrRTLDDIR" "$DPKG_ROOTRTLDDIR"
+    fi
+    if ! [ -h "$DPKG_ROOTSLIBDIR" ]; then
+        ln -s usrSLIBDIR "$DPKG_ROOTSLIBDIR"
+    fi
+fi
+# end-remove-after
+
+if [ "$1" = configure -o "$1" = triggered ] && ! [ -h "$DPKG_ROOT/usrRTLDDIR/RTLD_SO" ]; then
+    # In principle, this package should contain this link, but it also is
+    # contained in the multiarch libc package. To avoid a conflict and the need
+    # for declaring Replaces (which work badly with the /usr-move due to
+    # aliasing), we manually create this link whenever we are installed or
+    # upgraded or the multiarch libc is installed, upgraded or importantly
+    # removed. The link target is given as absolute without /usr. The runtime
+    # linker directory is always one level deep, so we can simply prepend "..".
+    ln -s ..RTLD_TARGET "$DPKG_ROOT/usrRTLDDIR/RTLD_SO"
+fi
+
+#DEBHELPER#
+
+exit 0

debian/debhelper.in/libc-alt.postrm

@@ -2,13 +2,12 @@
 set -e
 
 if [ "$1" = remove ]; then
-    # Native multiarch packages declare a Replaces: on the corresponding
-    # biarch package. Therefore if both a biarch package and the corresponding
-    # multiarch package are installed, then the multiarch package is removed,
-    # and then the biarch package is removed, the dynamic linker symlink
-    # becomes a dangling symlink. Remove it in that case.
-    if [ -h RTLDDIR/RTLD_SO ] && [ ! -f RTLDDIR/RTLD_SO ]; then
-        rm RTLDDIR/RTLD_SO
+    # We manually installed this link in postinst if missing. It is also
+    # installed by the native multiarch package as a proper file. We have
+    # to remove it if we are the last package to provide it. Detect that
+    # situation by checking for a dangling link.
+    if [ -h /usrRTLDDIR/RTLD_SO ] && [ ! -f /usrRTLDDIR/RTLD_SO ]; then
+        rm /usrRTLDDIR/RTLD_SO
     fi
 fi
 

debian/debhelper.in/libc-alt.preinst

@@ -1,6 +1,7 @@
 #!/bin/sh
 set -e
 
+# begin-remove-after: released:forky
 # We create the top-level lib symlink on merged-usr systems, so that we can
 # cover cases where for example libc-i386 on amd64 is installed and then removed
 # (which deletes the symlink too). Note that we only suppor the simplest case,
@@ -14,11 +15,11 @@ if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then
         # If it has not, is a directory already there? Half-merged systems are
         # the problem of usrmerge, simply ignore them here.
         if [ ! -L SLIBDIR ] && [ ! -d SLIBDIR ]; then
-            mkdir -p /usrSLIBDIR
             ln -s usrSLIBDIR SLIBDIR
         fi
     fi
 fi
+# end-remove-after
 
 #DEBHELPER#
 

debian/debhelper.in/libc-alt.triggers

@@ -0,0 +1,3 @@
+# Monitor the dynamic linker from the native multiarch package that is shared
+# with us.
+interest-noawait /usrRTLDDIR/RTLD_SO

debian/debhelper.in/libc-bin.install

@@ -4,7 +4,7 @@ debian/local/etc/ld.so.conf.d etc
 debian/local/etc/nsswitch.conf usr/share/libc-bin
 debian/local/etc/nss etc/default
 posix/gai.conf etc
-sbin/ldconfig sbin
+sbin/ldconfig usr/sbin
 usr/bin/getconf
 usr/bin/getent
 usr/bin/iconv

debian/debhelper.in/libc-bin.lintian-overrides

@@ -1,10 +1,10 @@
 # ldconfig must be executable even when the libc is not configured, and
 # thus must be linked statically
-statically-linked-binary sbin/ldconfig
-shared-library-lacks-prerequisites [sbin/ldconfig]
+statically-linked-binary usr/sbin/ldconfig
+shared-library-lacks-prerequisites [usr/sbin/ldconfig]
 
 # these manpages are provided by the manpages package
-no-manual-page [sbin/ldconfig]
+no-manual-page [usr/sbin/ldconfig]
 no-manual-page [usr/bin/getent]
 no-manual-page [usr/bin/iconv]
 no-manual-page [usr/bin/ld.so]

debian/debhelper.in/libc-udeb.install

@@ -1,11 +1,11 @@
-lib*/ld*.so*
-lib/*/ld*.so*
-lib/*/libm.so.*
-lib/*/libmvec.so.*
-lib/*/libdl.so.*
-lib/*/libresolv.so.*
-lib/*/libc.so.*
-lib/*/librt.so.*
-lib/*/libpthread.so.*
-lib/*/libnss_dns.so.*
-lib/*/libnss_files.so.*
+RTLDDIR/ld*.so* /usrRTLDDIR
+SLIBDIR/ld*.so* /usrSLIBDIR
+SLIBDIR/libm.so.* /usrSLIBDIR
+SLIBDIR/libmvec.so.* /usrSLIBDIR
+SLIBDIR/libdl.so.* /usrSLIBDIR
+SLIBDIR/libresolv.so.* /usrSLIBDIR
+SLIBDIR/libc.so.* /usrSLIBDIR
+SLIBDIR/librt.so.* /usrSLIBDIR
+SLIBDIR/libpthread.so.* /usrSLIBDIR
+SLIBDIR/libnss_dns.so.* /usrSLIBDIR
+SLIBDIR/libnss_files.so.* /usrSLIBDIR

debian/debhelper.in/libc-udeb.install.hurd-amd64

@@ -1,13 +1,13 @@
-lib*/ld*.so*
-lib/*/ld*.so*
-lib/*/libm.so.*
-lib/*/libmvec.so.*
-lib/*/libdl.so.*
-lib/*/libresolv.so.*
-lib/*/libc.so.*
-lib/*/librt.so.*
-lib/*/libpthread.so.*
-lib/*/libnss_dns.so.*
-lib/*/libnss_files.so.*
-lib/*/libmachuser.so.*
-lib/*/libhurduser.so.*
+RTLDDIR/ld*.so* /usrRTLDDIR
+SLIBDIR/ld*.so* /usrSLIBDIR
+SLIBDIR/libm.so.* /usrSLIBDIR
+SLIBDIR/libmvec.so.* /usrSLIBDIR
+SLIBDIR/libdl.so.* /usrSLIBDIR
+SLIBDIR/libresolv.so.* /usrSLIBDIR
+SLIBDIR/libc.so.* /usrSLIBDIR
+SLIBDIR/librt.so.* /usrSLIBDIR
+SLIBDIR/libpthread.so.* /usrSLIBDIR
+SLIBDIR/libnss_dns.so.* /usrSLIBDIR
+SLIBDIR/libnss_files.so.* /usrSLIBDIR
+SLIBDIR/libmachuser.so.* /usrSLIBDIR
+SLIBDIR/libhurduser.so.* /usrSLIBDIR

debian/debhelper.in/libc-udeb.install.hurd-i386

@@ -1,14 +1,14 @@
-lib*/ld*.so*
-lib/*/ld*.so*
-lib/*/libm.so.*
-lib/*/libmvec.so.*
-lib/*/libdl.so.*
-lib/*/libresolv.so.*
-lib/*/libc.so.*
-lib/*/libutil.so.*
-lib/*/librt.so.*
-lib/*/libpthread.so.*
-lib/*/libnss_dns.so.*
-lib/*/libnss_files.so.*
-lib/*/libmachuser.so.*
-lib/*/libhurduser.so.*
+RTLDDIR/ld*.so* /usrRTLDDIR
+SLIBDIR/ld*.so* /usrSLIBDIR
+SLIBDIR/libm.so.* /usrSLIBDIR
+SLIBDIR/libmvec.so.* /usrSLIBDIR
+SLIBDIR/libdl.so.* /usrSLIBDIR
+SLIBDIR/libresolv.so.* /usrSLIBDIR
+SLIBDIR/libc.so.* /usrSLIBDIR
+SLIBDIR/libutil.so.* /usrSLIBDIR
+SLIBDIR/librt.so.* /usrSLIBDIR
+SLIBDIR/libpthread.so.* /usrSLIBDIR
+SLIBDIR/libnss_dns.so.* /usrSLIBDIR
+SLIBDIR/libnss_files.so.* /usrSLIBDIR
+SLIBDIR/libmachuser.so.* /usrSLIBDIR
+SLIBDIR/libhurduser.so.* /usrSLIBDIR

debian/debhelper.in/libc.install

@@ -1,4 +1,4 @@
 etc/ld.so.conf.d
-lib*/ld*.so*
-lib/*/*.so*
+RTLDDIR/ld*.so* /usrRTLDDIR
+SLIBDIR/*.so* /usrSLIBDIR
 usr/lib/*/gconv

debian/debhelper.in/libc.postinst

@@ -148,32 +148,13 @@ then
 	fi # end upgrading and $preversion lt DEB_VERSION_UPSTREAM
     fi # Upgrading
 
-    # Restart init.  Currently handles chroots, systemd and upstart, and
-    # assumes anything else is going to not fail at behaving like
-    # sysvinit:
-    TELINIT=yes
-    if ischroot 2>/dev/null; then
-        # Don't bother trying to re-exec init from a chroot:
-        TELINIT=no
-    elif [ -n "${DPKG_ROOT:-}" ]; then
-        # Do not re-exec init if we are operating on a chroot from outside:
-        TELINIT=no
-    elif [ -d /run/systemd/system ]; then
-        # Restart systemd on upgrade, but carefully.
-        # The restart is wanted because of LP: #1942276 and Bug: #993821
-        # The care is needed because of https://bugs.debian.org/753725
-        # (if systemd --help fails the system might still be quite broken but
-        # that seems better than the kernel panic that results if systemd
-        # cannot reexec itself).
-        TELINIT=no
-        if systemd --help >/dev/null 2>/dev/null; then
-            systemctl daemon-reexec
-        else
-            echo "Error: Could not restart systemd, systemd binary not working" >&2
-        fi
-    fi
-    if [ "$TELINIT" = "yes" ]; then
-        telinit u 2>/dev/null || true ; sleep 1
+    # Emit triggers to allow depending packages to restart themselves if
+    # needed.  The triggers are called with "--no-await", as packages with the
+    # triggers-awaited state do not satisfy dependencies.
+    dpkg-trigger --no-await libc-upgrade
+    if [ -n "$preversion" ] && dpkg --compare-versions "$preversion" lt DEB_VERSION_UPSTREAM; then
+        dpkg-trigger --no-await libc-major-upgrade
+
     fi
 fi
 

debian/debhelper.in/libc.postrm

@@ -2,14 +2,8 @@
 set -e
 
 if [ "$1" = remove ]; then
-    # When both the multiarch and the corresponding biarch packages are
-    # installed, removing the multiarch package will remove the dynamic
-    # linker. Recreate it in the postinst.
-    ARCH=${DPKG_MAINTSCRIPT_ARCH}
-    target=$(dpkg-query -L LIBC-${ARCH} 2>/dev/null | grep -E '/lib.+/(ld\.so|RTLD_SO)$' || true)
-    if [ -f "$target" ] && ! [ -f RTLDDIR/RTLD_SO ] ; then
-        ln -sf ${target#RTLDDIR/} RTLDDIR/RTLD_SO
-    fi
+    # Remove DEP17 M8 protective diversion
+    dpkg-divert --quiet --remove --no-rename --divert "RTLDDIR/RTLD_SO.usr-is-merged" "RTLDDIR/RTLD_SO"
 fi
 
 if [ "$1" = deconfigure ]; then

debian/debhelper.in/libc.preinst

@@ -25,7 +25,10 @@ then
     # Only change LC_ALL after loading debconf to ensure the debconf templates
     # are properly localized.
     export LC_ALL=C
+fi
 
+if [ "$type" != abort-upgrade ] && [ -z "$DPKG_ROOT" ]
+then
     # See if LD_LIBRARY_PATH contains the traditional /lib, but not the
     # multiarch path
     dirs=$(echo $LD_LIBRARY_PATH | sed 's/:/ /g')
@@ -295,6 +298,37 @@ if [ "$1" = "install" ] || [ "$1" = "upgrade" ]; then
     fi
 fi
 
+# begin-remove-after: released:forky
+# Add DEP17 M4 protective diversions. These are needed for old base-files and
+# for multilib symlinks not included in base-files. Since we want to avoid
+# Pre-Depends: base-files (>= trixie) and we add them on behalf of base-files
+# when needed. As bookworm's base-files installs bin lib and sbin, the only
+# directory we may miss is the one containing the runtime linker when it is not
+# /lib.
+rtlddir=RTLDDIR
+if [ "$1" = install -o "$1" = upgrade ] && [ "$rtlddir" != "/lib" ]; then
+    if test -d "$DPKG_ROOT$rtlddir" && ! test -h "$DPKG_ROOT$rtlddir"; then
+        echo
+        echo "The current installation does not have a merged-/usr layout."
+        echo "This is unsupported and unpacking #PACKAGE# would break the system."
+        echo "Refusing to unpack. Please install the usrmerge package and try again."
+        echo
+        exit 1
+    fi
+    if dpkg --compare-versions "$(dpkg-query -f '${Version}' -W base-files)" le 13 || ! dpkg-query -L base-files | grep -qxF "$rtlddir"; then
+        dpkg-divert --quiet --add --no-rename --package base-files --divert "/.${rtlddir#/}.usr-is-merged" "$rtlddir"
+    fi
+fi
+# end-remove-after
+
+# Add DEP17 M8 protective diversions for the runtime dynamic linker. It is
+# installed in both libc (multiarch) and libc-alt (multilib) amounting to a
+# move and thus DEP17 P1 problem. This diversion should be removed by forky's
+# libc.postinst.
+if [ "$1" = install ] || [ "$1" = upgrade ]; then
+    dpkg-divert --quiet --add --no-rename --divert "RTLDDIR/RTLD_SO.usr-is-merged" "RTLDDIR/RTLD_SO"
+fi
+
 #DEBHELPER#
 
 if [ -n "$preversion" ]; then

debian/rules

@@ -91,6 +91,7 @@ libdir=/usr/lib/$(DEB_HOST_MULTIARCH)
 mvec = no
 
 rtld_so=$(shell awk 'BEGIN {FS="="} /^ld\.so-version/ {print $$2}' $(DEB_BUILDDIR)/soversions.mk)
+rtld_target=$(shell readlink $(debian-tmp)$(rtlddir)/$(rtld_so))
 libc_so=$(shell awk 'BEGIN {FS="="} /^libc\.so-version/ {print "libc.so"$$2}' $(DEB_BUILDDIR)/soversions.mk)
 
 BASE_CC = gcc