[readline, djgpp] Check $build_os instead of $host_os in configure

Yao Qi
2012-08-01T10:46:57Z

Hi,
When I configure gdb as '--host=i586-pc-msdosdjgpp --target=i586-pc-msdosdjgpp'
on x86-linux, I get following configure error in readline.

readline/configure: line 6268: pwd.exe: command not found

Looks like the configure script should check $build_os instead of
$host_os. This patch is to fix this problem. Is it OK?

Note that I am not sure that AC_CANONICAL_BUILD is necessary here, because
after I add it in configure.in, the re-generated configure is nearly
unchanged.

readline:

* readline/configure.in: Invoke AC_CANONICAL_BUILD.
Change $host_os to $build_os.
* readline/configure: Regenerated.
---
readline/configure | 3 ++-
readline/configure.in | 3 ++-
2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/readline/configure b/readline/configure
index 0187311..09de45d 100755
--- a/readline/configure
+++ b/readline/configure
@@ -2285,6 +2285,7 @@ case $host_os in *\ *) host_os=`echo "$host_os" | sed 's/ /-/g'`;; esac

+
opt_curses=no
opt_purify=no

@@ -6264,7 +6265,7 @@ fi

-case "$host_os" in
+case "$build_os" in
msdosdjgpp*) BUILD_DIR=`pwd.exe` ;; # to prevent //d/path/file
*) BUILD_DIR=`pwd` ;;
esac
diff --git a/readline/configure.in b/readline/configure.in
index f09f4e5..b395af4 100644
--- a/readline/configure.in
+++ b/readline/configure.in
@@ -39,6 +39,7 @@ dnl update the value of RL_READLINE_VERSION in readline.h when this changes
LIBVERSION=6.2

AC_CANONICAL_HOST
+AC_CANONICAL_BUILD

dnl configure defaults
opt_curses=no
@@ -268,7 +269,7 @@ AC_SUBST(SHARED_TARGET)
AC_SUBST(STATIC_INSTALL_TARGET)
AC_SUBST(SHARED_INSTALL_TARGET)

-case "$host_os" in
+case "$build_os" in
msdosdjgpp*) BUILD_DIR=`pwd.exe` ;; # to prevent //d/path/file
*) BUILD_DIR=`pwd` ;;
esac
--
1.7.7.6