From dfb88de1ea0ec94aa9dfd37b9204a1df1db796c8 Mon Sep 17 00:00:00 2001
From: Carsten Schoenert <c.schoenert@t-online.de>
Date: Sun, 27 Aug 2017 21:14:01 +0200
Subject: [PATCH] use icudt??{b,l}.dat depending on architecture

Upstream doesn't really care about big endian platforms and so also don't
care about a needed file icudt??b.dat on big endian platforms. Changing
the m4 macro for ICU so the needed file will be depended on the build
platform exported and let later the configure run automatically use the
correct name for the ICU *.dat file so we not only depend on the
prebuild *.dat file for little endian.

The `case foo in ...` loop could be obviously more compressed with only
one case entry for all architectures which are all big endian.

---%<---
    case $host in
       dnl big endian architectures
       hppa-*|m68k-*|...)
--->%---

For more readability the more exclusive extra list of all possible
architectures with big endianness in Debian was choosen.

Gbp-Pq: Topic debian-hacks
Gbp-Pq: Name use-icudt-b-l-.dat-depending-on-architecture.patch
---
 build/autoconf/icu.m4 | 26 +++++++++++++++++++++++++-
 1 file changed, 25 insertions(+), 1 deletion(-)

diff --git a/build/autoconf/icu.m4 b/build/autoconf/icu.m4
index 4c59079bf2..bc1873a211 100644
--- a/build/autoconf/icu.m4
+++ b/build/autoconf/icu.m4
@@ -78,7 +78,31 @@ if test -n "$USE_ICU"; then
     # TODO: the l is actually endian-dependent
     # We could make this set as 'l' or 'b' for little or big, respectively,
     # but we'd need to check in a big-endian version of the file.
-    ICU_DATA_FILE="icudt${version}l.dat"
+    case $host in
+        dnl big endian architectures
+        hppa-*)
+            ICU_DATA_FILE="icudt${version}b.dat"
+            ;;
+        m68k-*)
+            ICU_DATA_FILE="icudt${version}b.dat"
+            ;;
+        mips-*)
+            ICU_DATA_FILE="icudt${version}b.dat"
+            ;;
+        powerpc-* | powerpc64-*)
+            ICU_DATA_FILE="icudt${version}b.dat"
+            ;;
+        s390*-*)
+            ICU_DATA_FILE="icudt${version}b.dat"
+            ;;
+        sparc*-*)
+            ICU_DATA_FILE="icudt${version}b.dat"
+            ;;
+        dnl assume little endian by default
+        *)
+            ICU_DATA_FILE="icudt${version}l.dat"
+            ;;
+    esac
 
     MOZ_ICU_DATA_ARCHIVE=
 fi
-- 
2.30.2