win32: fail early if UTF8 isn't supported

When the UTF8 manifest is included in the binary and ACP isn't UTF8
fail at once.  This avoids raising false hopes if the binary is run
on Window 7/8.  On Windows XP it won't even run.

When the busybox applet is run without arguments always report the
build-time configuration of globbing and the UTF8 manifest.

3 files changed, 50 insertions, 31 deletions

diff --git a/examples/mswin-build/mkprerelease b/examples/mswin-build/mkprerelease
index 45f64fa72..1cace46a3 100755
--- a/examples/mswin-build/mkprerelease
+++ b/examples/mswin-build/mkprerelease
@@ -29,13 +29,13 @@ for i in $TARGETS
 do
         if [ $i = "build_pre_64" ]
         then
-                CONFIG=mingw64_defconfig;
+                CONFIG=mingw64_defconfig
         elif [ $i = "build_pre_64u" ]
         then
-                CONFIG=mingw64u_defconfig;
+                CONFIG=mingw64u_defconfig
         elif [ $i = "build_pre_32" ]
         then
-                CONFIG=mingw32_defconfig;
+                CONFIG=mingw32_defconfig
         fi
 
         (cd $i; git checkout master; make ${CONFIG})
@@ -44,8 +44,16 @@ done
 # perform build
 for i in $TARGETS
 do
+        BITS=64
+        if [ $i = "build_pre_32" ]
+        then
+                BITS=32;
+        fi
+
         (
         cd $i
-        make -j $(nproc) EXTRAVERSION="-$(git describe --match=FRP | sed 's/FRP/PRE/')"
+        GCCV=$(rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-gcc)
+        CRTV=$(rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-crt)
+        make -j $(nproc) EXTRAVERSION="-$(git describe --match=FRP | sed 's/FRP/PRE/')" MINGW_VER="$GCCV; $CRTV"
         )
 done
diff --git a/examples/mswin-build/mkrelease b/examples/mswin-build/mkrelease
index 7ce9094f6..956cba0c1 100755
--- a/examples/mswin-build/mkrelease
+++ b/examples/mswin-build/mkrelease
@@ -2,7 +2,7 @@
 #
 # Build 32- and 64-bit busybox binaries for release
 #
-TARGETS="build_32 build_64"
+TARGETS="build_32 build_64 build_64u"
 
 if [ ! -d busybox-w32 ]
 then
@@ -20,15 +20,23 @@ done
 # apply default configuration
 for i in $TARGETS
 do
-        BITS=32
         if [ $i = "build_64" ]
         then
-                BITS=64;
+                CONFIG=mingw64_defconfig
+                BITS=64
+        elif [ $i = "build_64u" ]
+        then
+                CONFIG=mingw64u_defconfig
+                BITS=64
+        elif [ $i = "build_32" ]
+        then
+                CONFIG=mingw32_defconfig
+                BITS=32
         fi
 
         (
                 cd $i
-                make mingw${BITS}_defconfig
+                make ${CONFIG}
                 # link time optimisation, fortify, stack protection
                 sed -e 's/^CONFIG_EXTRA_CFLAGS="\(.*\)"$/CONFIG_EXTRA_CFLAGS="\1 -flto -fstack-protector --param=ssp-buffer-size=4"/' \
                         -e 's/^CONFIG_EXTRA_CFLAGS=" /CONFIG_EXTRA_CFLAGS="/' \
@@ -49,22 +57,16 @@ done
 # perform build
 for i in $TARGETS
 do
-        BITS=32
-        if [ $i = "build_64" ]
+        BITS=64
+        if [ $i = "build_32" ]
         then
-                BITS=64;
+                BITS=32
         fi
 
         (
         cd $i
-        GCCV=`rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-gcc`
-        CRTV=`rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-crt`
-        GLOB="; noglob"
-        if grep -q ^CONFIG_GLOBBING=y .config
-        then
-                GLOB="; glob"
-        fi
-        VER="($GCCV; $CRTV$GLOB)"
-        make -j $(nproc) EXTRAVERSION="-`git describe --match=FRP`" MINGW_VER="$VER"
+        GCCV=$(rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-gcc)
+        CRTV=$(rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-crt)
+        make -j $(nproc) EXTRAVERSION="-`git describe --match=FRP`" MINGW_VER="$GCCV; $CRTV"
         )
 done
diff --git a/libbb/appletlib.c b/libbb/appletlib.c
index 1c135fde7..a70b3a4c2 100644
--- a/libbb/appletlib.c
+++ b/libbb/appletlib.c
@@ -886,19 +886,20 @@ int busybox_main(int argc UNUSED_PARAM, char **argv)
 
                 dup2(1, 2);
                 full_write2_str(bb_banner); /* reuse const string */
-#if ENABLE_PLATFORM_MINGW32
-# if ENABLE_FEATURE_UTF8_MANIFEST
-                full_write2_str(GetACP() == CP_UTF8 ? " (Unicode on)"
-                                                    : " (Unicode off)");
-# endif
-                full_write2_str("\n");
-#else
-                full_write2_str(" multi-call binary.\n"); /* reuse */
-#endif
-#if defined(MINGW_VER)
+#  if ENABLE_PLATFORM_MINGW32
+                full_write2_str("\n(");
+#   if defined(MINGW_VER)
                 if (sizeof(MINGW_VER) > 5) {
-                        full_write2_str(MINGW_VER "\n\n");
+                        full_write2_str(MINGW_VER "; ");
                 }
+#   endif
+                full_write2_str(ENABLE_GLOBBING ? "glob" : "noglob");
+#   if ENABLE_FEATURE_UTF8_MANIFEST
+                full_write2_str("; Unicode");
+#   endif
+                full_write2_str(")\n\n");
+#  else
+                full_write2_str(" multi-call binary.\n"); /* reuse */
 #endif
                 full_write2_str(
                         "BusyBox is copyrighted by many authors between 1998-2023.\n"
@@ -1303,6 +1304,14 @@ int main(int argc UNUSED_PARAM, char **argv)
         }
 #endif
 #if ENABLE_PLATFORM_MINGW32
+# if ENABLE_FEATURE_UTF8_MANIFEST
+        if (GetACP() != CP_UTF8) {
+                full_write2_str(bb_basename(argv[0]));
+                full_write2_str(": needs UTF8 code page\n");
+                return 1;
+        }
+# endif
+
         /* detect if we're running an interpreted script */
         if (argv[0][1] == ':' && argv[0][2] == '/') {
                 switch (argv[0][0]) {