[setup - the official Cygwin setup program] branch master, updated. release_2.893-7-g5bbeca9

https://sourceware.org/git/gitweb.cgi?p=cygwin-apps/setup.git;h=5bbeca954a98f2936f58f289f23e9dca66540eb0

commit 5bbeca954a98f2936f58f289f23e9dca66540eb0
Author: Jon Turney <[email protected]>
Date:   Thu Oct 4 18:26:55 2018 +0100

    Allow host machine to be specified to bootstrap
    
    Allow host machine to be specified to bootstrap, rather than it picking the
    first one it finds a compiler for

https://sourceware.org/git/gitweb.cgi?p=cygwin-apps/setup.git;h=227ce6b30d0acd277c75caf4c5d88a3ab5506a2e

commit 227ce6b30d0acd277c75caf4c5d88a3ab5506a2e
Author: Jon Turney <[email protected]>
Date:   Thu Oct 4 14:01:50 2018 +0100

    Improve libgcrypt detection
    
    Set ACLOCAL_PATH so libgcrypt.m4 from cross-package is found, if it is the
    only one installed.
    
    Accomodate older libgcrypt.m4, which doesn't check SYSROOT


Diff:
---
 bootstrap.sh |   27 +++++++++++++++------------
 configure.ac |    3 +--
 2 files changed, 16 insertions(+), 14 deletions(-)

diff --git a/bootstrap.sh b/bootstrap.sh
index 1d388da..6dcd0ed 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,4 +1,4 @@
-#! /bin/sh
+#! /bin/bash
 # Used to setup the configure.in, autoheader and Makefile.in's if configure
 # has not been generated. This script is only needed for developers when
 # configure has not been run, or if a Makefile.am in a non-configured directory
@@ -26,6 +26,20 @@ if [ ! -f main.cc ]; then
   exit 1
 fi
 
+if [[ "$1" =~ "--host=" ]]; then
+	host="${1#--host=}"
+elif hash i686-w64-mingw32-g++ 2> /dev/null; then
+	host="i686-w64-mingw32"
+elif hash i686-pc-mingw32-g++ 2> /dev/null; then
+	host="i686-pc-mingw32"
+elif hash x86_64-w64-mingw32-g++ 2> /dev/null; then
+	host="x86_64-w64-mingw32"
+else
+	echo "mingw32 or mingw64 target g++ required for building setup"
+	exit 1
+fi
+
+export ACLOCAL_PATH=$($host-g++ --print-sysroot)/mingw/share/aclocal
 
 # Make sure cfgaux exists
 mkdir -p cfgaux
@@ -51,17 +65,6 @@ cd "$builddir"
 
 build=`$srcdir/cfgaux/config.guess`
 
-if hash i686-w64-mingw32-g++ 2> /dev/null; then
-	host="i686-w64-mingw32"
-elif hash i686-pc-mingw32-g++ 2> /dev/null; then
-	host="i686-pc-mingw32"
-elif hash x86_64-w64-mingw32-g++ 2> /dev/null; then
-	host="x86_64-w64-mingw32"
-else
-	echo "mingw32 or mingw64 target g++ required for building setup"
-	exit 1
-fi
-
 echo "running configure"
 $srcdir/configure -C --build=$build --host=$host "$@"
 
diff --git a/configure.ac b/configure.ac
index 103b89e..3854088 100644
--- a/configure.ac
+++ b/configure.ac
@@ -54,9 +54,8 @@ PKG_CHECK_MODULES(LZMA, [liblzma])
 PKG_CHECK_MODULES(LIBSOLV, [libsolv])
 
 dnl dependencies we need to check for by hand
-export SYSROOT=$($CC --print-sysroot)/mingw
+export LIBGCRYPT_CONFIG=$($CC --print-sysroot)/mingw/bin/libgcrypt-config
 AM_PATH_LIBGCRYPT
-unset SYSROOT
 
 save_LIBS=$LIBS
 LIBS="$LIBS -lbz2"