https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=e7e6119241d02241c3d114cff037340c12245393
commit e7e6119241d02241c3d114cff037340c12245393 Author: Peter Foley <[email protected]> Date: Sat Apr 2 10:56:44 2016 -0400 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 <[email protected]> Diff: --- winsup/configure | 19 +++++++++++-------- winsup/configure.ac | 8 +++++--- winsup/cygserver/configure | 2 ++ winsup/cygserver/configure.ac | 9 ++++++--- winsup/cygwin/configure | 2 ++ winsup/cygwin/configure.ac | 11 +++++++---- 6 files changed, 33 insertions(+), 18 deletions(-) diff --git a/winsup/configure b/winsup/configure index 541c81b..23b3a7b 100755 --- a/winsup/configure +++ b/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="$subdirs utils lsaauth" fi diff --git a/winsup/configure.ac b/winsup/configure.ac index b04f044..3daa2ac 100644 --- a/winsup/configure.ac +++ b/winsup/configure.ac @@ -25,17 +25,19 @@ AC_PROG_CC AC_PROG_CXX AC_PROG_CPP AC_LANG(C) -AC_ARG_WITH([mingw-progs],[AS_HELP_STRING([--without-mingw-progs],[do not build programs using the mingw toolchain (useful for cross-compiling)])],[],[with_mingw_progs=yes]) +AC_ARG_WITH([cross-bootstrap],[AS_HELP_STRING([--with-cross-bootstrap],[do not build programs using the mingw toolchain or check for mingw libraries (useful for bootstrapping a cross-compiler)])],[],[with_cross_bootstrap=no]) AC_WINDOWS_HEADERS -AC_WINDOWS_LIBS +if test "x$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 diff --git a/winsup/cygserver/configure b/winsup/cygserver/configure index 37caf57..71d1592 100755 --- a/winsup/cygserver/configure +++ b/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 $CPPFLAGS' diff --git a/winsup/cygserver/configure.ac b/winsup/cygserver/configure.ac index 5d1464b..eb6a894 100644 --- a/winsup/cygserver/configure.ac +++ b/winsup/cygserver/configure.ac @@ -9,7 +9,7 @@ dnl details. dnl dnl Process this file with autoconf to produce a configure script. -AC_PREREQ(2.59) +AC_PREREQ([2.59]) AC_INIT([Cygwin Cygserver],[0],[[email protected]],[cygwin],[https://cygwin.com]) AC_CONFIG_SRCDIR(cygserver.cc) AC_CONFIG_AUX_DIR(..) @@ -26,7 +26,9 @@ AC_PROG_CPP AC_LANG(C) AC_WINDOWS_HEADERS -AC_WINDOWS_LIBS +if test "x$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 diff --git a/winsup/cygwin/configure b/winsup/cygwin/configure index 30a1405..f655f57 100755 --- a/winsup/cygwin/configure +++ b/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 $CPPFLAGS' diff --git a/winsup/cygwin/configure.ac b/winsup/cygwin/configure.ac index 6397931..d8cdcde 100644 --- a/winsup/cygwin/configure.ac +++ b/winsup/cygwin/configure.ac @@ -10,7 +10,7 @@ dnl details. dnl dnl Process this file with autoconf to produce a configure script. -AC_PREREQ(2.59) +AC_PREREQ([2.59]) AC_INIT([Cygwin DLL],[0],[[email protected]],[cygwin],[https://cygwin.com]) AC_CONFIG_SRCDIR(Makefile.in) AC_CONFIG_HEADER(config.h) @@ -28,7 +28,9 @@ AC_PROG_CPP AC_LANG(C) AC_WINDOWS_HEADERS -AC_WINDOWS_LIBS +if test "x$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
