Rename without-mingw-progs to with-cross-bootstrap

Rename without-mingw-progs to with-cross-bootstrap, since it now
disables additional checks that are problematic for cross-compilers.

When cross-compiling a toolchain targeting cygwin, building cygwin1.dll
requires libgcc.
However, building libgcc requires the cygwin headers to be
installed.
Configuring cygwin requries the mingw-crt libraries, which require the
cygwin headers to be installed.
Work around this circular dependency by making the
--with-cross-bootstrap configure option skip cygwin's configure checks
for valid mingw-crt libraries. Cygwin will still properly link against
these libraries if they exist, but this allows configure to succeed even
if the libraries have not been built yet.
Since the mingw-crt libraries only require the cygwin headers to be
installed, this allows us to successfully configure cygwin so that we
can only install the headers without trying to build any
libraries.

winsup/ChangeLog
configure.ac: rename without-mingw-progs option to with-cross-bootstrap
configure: regenerate
winsup/cygserver/ChangeLog
configure.ac: don't check AC_WINDOWS_LIBS when using with-cross-bootstrap
configure: regenerate
winsup/cygwin/ChangeLog
configure.ac: don't check AC_WINDOWS_LIBS when using with-cross-bootstrap
configure: regenerate

Signed-off-by: Peter Foley <pefoley2@pefoley.com>

winsup/configure

@@ -665,7 +665,7 @@ target_builddir'
 ac_subst_files=''
 ac_user_opts='
 enable_option_checking
-with_mingw_progs
+with_cross_bootstrap
 with_windows_headers
 with_windows_libs
 '
@@ -1295,8 +1295,9 @@ if test -n "$ac_init_help"; then
 Optional Packages:
   --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
   --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
-  --without-mingw-progs   do not build programs using the mingw toolchain
-                          (useful for cross-compiling)
+  --with-cross-bootstrap  do not build programs using the mingw toolchain or
+                          check for mingw libraries (useful for bootstrapping
+                          a cross-compiler)
   --with-windows-headers=DIR
                           specify where the windows includes are located
   --with-windows-libs=DIR specify where the windows libraries are located
@@ -3362,11 +3363,11 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
-# Check whether --with-mingw-progs was given.
-if test "${with_mingw_progs+set}" = set; then :
-  withval=$with_mingw_progs;
+# Check whether --with-cross-bootstrap was given.
+if test "${with_cross_bootstrap+set}" = set; then :
+  withval=$with_cross_bootstrap;
 else
-  with_mingw_progs=yes
+  with_cross_bootstrap=no
 fi
 
 
@@ -3379,6 +3380,7 @@ if test "${with_windows_headers+set}" = set; then :
 fi
 
 
+if test "x$with_cross_bootstrap" != "xyes"; then
 
 
 # Check whether --with-windows-libs was given.
@@ -3397,6 +3399,7 @@ fi
 
 
 
+fi
 
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'
@@ -3448,7 +3451,7 @@ export CXX
 
 subdirs="$subdirs cygwin cygserver doc"
 
-if test "x$with_mingw_progs" != xno; then
+if test "x$with_cross_bootstrap" != "xyes"; then
     subdirs="$subdirs utils lsaauth"
 
 fi

winsup/configure.ac

@@ -25,17 +25,19 @@ AC_PROG_CC
 AC_PROG_CXX
 AC_PROG_CPP
 AC_LANG(C)
-AC_ARG_WITH([mingw-progs],[AS_HELP_STRING([--without-mingw-progs],[do not build programs using the mingw toolchain (useful for cross-compiling)])],[],[with_mingw_progs=yes])
+AC_ARG_WITH([cross-bootstrap],[AS_HELP_STRING([--with-cross-bootstrap],[do not build programs using the mingw toolchain or check for mingw libraries (useful for bootstrapping a cross-compiler)])],[],[with_cross_bootstrap=no])
 
 AC_WINDOWS_HEADERS
+if test "x$with_cross_bootstrap" != "xyes"; then
     AC_WINDOWS_LIBS
+fi
 
 AC_LANG(C++)
 
 AC_CYGWIN_INCLUDES
 
 AC_CONFIG_SUBDIRS(cygwin cygserver doc)
-if test "x$with_mingw_progs" != xno; then
+if test "x$with_cross_bootstrap" != "xyes"; then
     AC_CONFIG_SUBDIRS([utils lsaauth])
 fi
 

winsup/cygserver/configure

@@ -3381,6 +3381,7 @@ if test "${with_windows_headers+set}" = set; then :
 fi
 
 
+if test "x$with_cross_bootstrap" != "xyes"; then
 
 
 # Check whether --with-windows-libs was given.
@@ -3399,6 +3400,7 @@ fi
 
 
 
+fi
 
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'

winsup/cygserver/configure.ac

@@ -9,7 +9,7 @@ dnl details.
 dnl
 dnl Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.59)
+AC_PREREQ([2.59])
 AC_INIT([Cygwin Cygserver],[0],[cygwin@cygwin.com],[cygwin],[https://cygwin.com])
 AC_CONFIG_SRCDIR(cygserver.cc)
 AC_CONFIG_AUX_DIR(..)
@@ -26,7 +26,9 @@ AC_PROG_CPP
 AC_LANG(C)
 
 AC_WINDOWS_HEADERS
+if test "x$with_cross_bootstrap" != "xyes"; then
   AC_WINDOWS_LIBS
+fi
 
 AC_LANG(C++)
 
@@ -65,4 +67,5 @@ esac
 ])
 
 AC_CONFIGURE_ARGS
-AC_OUTPUT(Makefile)
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT

winsup/cygwin/configure

@@ -3392,6 +3392,7 @@ if test "${with_windows_headers+set}" = set; then :
 fi
 
 
+if test "x$with_cross_bootstrap" != "xyes"; then
 
 
 # Check whether --with-windows-libs was given.
@@ -3410,6 +3411,7 @@ fi
 
 
 
+fi
 
 ac_ext=cpp
 ac_cpp='$CXXCPP $CPPFLAGS'

winsup/cygwin/configure.ac

@@ -10,7 +10,7 @@ dnl details.
 dnl
 dnl Process this file with autoconf to produce a configure script.
 
-AC_PREREQ(2.59)
+AC_PREREQ([2.59])
 AC_INIT([Cygwin DLL],[0],[cygwin@cygwin.com],[cygwin],[https://cygwin.com])
 AC_CONFIG_SRCDIR(Makefile.in)
 AC_CONFIG_HEADER(config.h)
@@ -28,7 +28,9 @@ AC_PROG_CPP
 AC_LANG(C)
 
 AC_WINDOWS_HEADERS
+if test "x$with_cross_bootstrap" != "xyes"; then
   AC_WINDOWS_LIBS
+fi
 
 AC_LANG(C++)
 
@@ -99,7 +101,7 @@ case "$target_cpu" in
 		DIN_FILE="x86_64.din"
 		TLSOFFSETS_H="tlsoffsets64.h"
 		;;
-   *)		AC_MSG_ERROR(Invalid target processor \"$target_cpu\") ;;
+   *)		AC_MSG_ERROR([Invalid target processor "$target_cpu"]) ;;
 esac
 
 AC_CONFIGURE_ARGS
@@ -109,4 +111,5 @@ AC_SUBST(DLL_ENTRY)
 AC_SUBST(DEF_DLL_ENTRY)
 AC_SUBST(DIN_FILE)
 AC_SUBST(TLSOFFSETS_H)
-AC_OUTPUT(Makefile)
+AC_CONFIG_FILES([Makefile])
+AC_OUTPUT