Import gcc-9 (9.2.1-19)debian/9.2.1-19debian

1 files changed, 41 insertions, 0 deletions

diff --git a/debian/ada/check_ali_update.sh b/debian/ada/check_ali_update.sh
new file mode 100644
index 0000000..4067341
--- /dev/null
+++ b/debian/ada/check_ali_update.sh
@@ -0,0 +1,41 @@
+#!/bin/sh
+
+# Helper for debian/rules2.
+
+# A modification of libgnat sources invalidates the .ali checksums in
+# reverse dependencies as described in the Debian Policy for Ada.  GCC
+# cannot afford the recommended passage through NEW, but this check at
+# least reports the issue before causing random FTBFS.
+
+set -Cefu
+[$# = 2]
+# Argument 1: old ALI dir
+# Argument 2: new ALI dir
+
+# A missing $1 means that we build a new GCC Base Version, and that
+# libgnatBV-dev package will be renamed anyway.
+[-d "$1"] || exit 0
+
+report () {
+    echo 'error: changes in Ada Library Information files.'
+    echo 'You are seeing this because'
+    echo ' * DEB_CHECK_ALI_UPDATE=1 in the environment.'
+    echo ' * build_type=build-native and with_libgnat=yes in debian/rules.defs.'
+    echo " * $1 exists, so libgnat is probably rebuilding itself with the same version."
+    echo " * checksums in former $1 and freshly built $2 differ."
+    echo 'This may break Ada packages, see https://people.debian.org/~lbrenta/debian-ada-policy.html.'
+    echo 'If you are uploading to Debian, please contact debian-ada@lists.debian.org.'
+    exit 1
+}
+
+for ali1 in `find "$1" -name "*.ali"`; do
+    unit=`basename "$ali1" .ali`
+    ali2="$2/$unit.ali"
+
+    [-r "$ali2"] || report "$ali1" "$ali2"
+
+    pattern="^D $unit\.ad"
+    lines1=`grep "$pattern" "$ali1"`
+    lines2=`grep "$pattern" "$ali2"`
+    ["$lines1" = "lines2"] || report "$ali1" "$ali2"
+done