X-Git-Url: https://ncurses.scripts.mit.edu/?a=blobdiff_plain;f=Ada95%2Faclocal.m4;fp=Ada95%2Faclocal.m4;h=5f7c5a6e9613b1deaaba96c4710a8a530315f2c4;hb=b5d80765d2da2bcc9d9f71cafd081ad4453cd365;hp=dcaada8bc3ef341f50eb540a247f07f63a09aa6d;hpb=3ffedbf1016b2d7026e7543fe73e87b046fbd862;p=ncurses.git

diff --git a/Ada95/aclocal.m4 b/Ada95/aclocal.m4
index dcaada8b..5f7c5a6e 100644
--- a/Ada95/aclocal.m4
+++ b/Ada95/aclocal.m4
@@ -29,7 +29,7 @@ dnl***************************************************************************
 dnl
 dnl Author: Thomas E. Dickey
 dnl
-dnl $Id: aclocal.m4,v 1.194 2022/09/10 19:25:56 tom Exp $
+dnl $Id: aclocal.m4,v 1.195 2022/09/24 20:42:30 tom Exp $
 dnl Macros used in NCURSES Ada95 auto-configuration script.
 dnl
 dnl These macros are maintained separately from NCURSES.  The copyright on
@@ -477,7 +477,7 @@ fi
 AC_SUBST(ARFLAGS)
 ])
 dnl ---------------------------------------------------------------------------
-dnl CF_BUILD_CC version: 9 updated: 2021/01/02 09:31:20
+dnl CF_BUILD_CC version: 10 updated: 2022/09/24 16:36:41
 dnl -----------
 dnl If we're cross-compiling, allow the user to override the tools and their
 dnl options.  The configure script is oriented toward identifying the host
@@ -543,7 +543,30 @@ if test "$cross_compiling" = yes ; then
 
 	: ${BUILD_CC:='${CC}'}
 
-	if { test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}'; } ; then
+	AC_MSG_CHECKING(if the build-compiler "$BUILD_CC" works)
+
+	cf_save_crossed=$cross_compiling
+	cf_save_ac_link=$ac_link
+	cross_compiling=no
+	ac_link='$BUILD_CC -o "conftest$ac_exeext" $BUILD_CFLAGS $BUILD_CPPFLAGS $BUILD_LDFLAGS "conftest.$ac_ext" $BUILD_LIBS >&AS_MESSAGE_LOG_FD'
+
+	AC_TRY_RUN([#include <stdio.h>
+		int main(int argc, char *argv[])
+		{
+			${cf_cv_main_return:-return}(argc < 0 || argv == 0 || argv[0] == 0);
+		}
+	],
+		cf_ok_build_cc=yes,
+		cf_ok_build_cc=no,
+		cf_ok_build_cc=unknown)
+
+	cross_compiling=$cf_save_crossed
+	ac_link=$cf_save_ac_link
+
+	AC_MSG_RESULT($cf_ok_build_cc)
+
+	if test "$cf_ok_build_cc" != yes
+	then
 		AC_MSG_ERROR([Cross-build requires two compilers.
 Use --with-build-cc to specify the native compiler.])
 	fi