configure: Improve error reporting for missing 32-bit development environment.
diff --git a/configure.ac b/configure.ac
index 604f331..591d541 100644
--- a/configure.ac
+++ b/configure.ac
@@ -81,12 +81,34 @@
AC_ARG_WITH(wine-tools,AS_HELP_STRING([--with-wine-tools=DIR],[use Wine tools from directory DIR]))
AC_CANONICAL_HOST
+
+dnl check for out of tree build with unclean source tree
+case "$srcdir" in
+ .) ;;
+ *) if test -f "$srcdir/Makefile" -o -f "$srcdir/include/config.h"; then
+ AC_MSG_ERROR([you are building out of the source tree, but the source tree contains object files.
+You need to run 'make distclean' in the source tree first.])
+ fi ;;
+esac
+
+dnl **** Check for some programs ****
+
+AC_PROG_MAKE_SET
+AC_PROG_CC
+AC_PROG_CXX
+dnl We can't use AC_PROG_CPP for winegcc, it uses by default $(CC) -E
+AC_CHECK_TOOL(CPPBIN,cpp,cpp)
+
case $host in
- x86_64*linux*)
+ x86_64*)
if test "x$enable_win64" != "xyes"
then
- CC="${CC:-gcc} -m32"
- CXX="${CXX:-g++} -m32"
+ CC="$CC -m32"
+ CXX="$CXX -m32"
+ AC_MSG_CHECKING([whether $CC works])
+ AC_LINK_IFELSE(AC_LANG_PROGRAM(),AC_MSG_RESULT([yes]),
+ [AC_MSG_RESULT([no])
+ AC_MSG_ERROR([Cannot build a 32-bit program, you need to install 32-bit development libraries.])])
LD="${LD:-ld} -m elf_i386"
AS="${AS:-as} --32"
host_cpu="i386"
@@ -126,23 +148,6 @@
WIN16_INSTALL=""
fi
-dnl check for out of tree build with unclean source tree
-case "$srcdir" in
- .) ;;
- *) if test -f "$srcdir/Makefile" -o -f "$srcdir/include/config.h"; then
- AC_MSG_ERROR([you are building out of the source tree, but the source tree contains object files.
-You need to run 'make distclean' in the source tree first.])
- fi ;;
-esac
-
-dnl **** Check for some programs ****
-
-AC_PROG_MAKE_SET
-AC_PROG_CC
-AC_PROG_CXX
-dnl We can't use AC_PROG_CPP for winegcc, it uses by default $(CC) -E
-AC_CHECK_TOOL(CPPBIN,cpp,cpp)
-
AC_CACHE_CHECK([for the directory containing the Wine tools], wine_cv_toolsdir,
[if test -z "$with_wine_tools"; then
if test "$cross_compiling" = "yes"; then
