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# Check to see if we're running under Cygwin32, without using
# AC_CANONICAL_*. If so, set output variable CYGWIN32 to "yes".
# Otherwise set it to "no".
dnl AM_CYGWIN32()
dnl You might think we can do this by checking for a cygwin32-specific
dnl cpp define.
AC_DEFUN(AM_CYGWIN32,
[AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
[AC_TRY_COMPILE(,[int main () { return __CYGWIN32__; }],
am_cv_cygwin32=yes, am_cv_cygwin32=no)
rm -f conftest*])
CYGWIN32=
test "$am_cv_cygwin32" = yes && CYGWIN32=yes])
# Check to see if we're running under Win32, without using
# AC_CANONICAL_*. If so, set output variable EXEEXT to ".exe".
# Otherwise set it to "".
dnl AM_EXEEXT()
dnl This knows we add .exe if we're building in the Cygwin32
dnl environment. But if we're not, then it compiles a test program
dnl to see if there is a suffix for executables.
AC_DEFUN(AM_EXEEXT,
dnl AC_REQUIRE([AC_PROG_CC])AC_REQUIRE([AM_CYGWIN32])
AC_MSG_CHECKING([for executable suffix])
[AC_CACHE_VAL(am_cv_exeext,
[if test "$CYGWIN32" = yes; then
am_cv_exeext=.exe
else
cat > am_c_test.c << 'EOF'
int main() {
/* Nothing needed here */
}
EOF
${CC-cc} -o am_c_test $CFLAGS $CPPFLAGS $LDFLAGS am_c_test.c $LIBS 1>&5
am_cv_exeext=`ls am_c_test.* | grep -v am_c_test.c | sed -e s/am_c_test//`
rm -f am_c_test*])
test x"${am_cv_exeext}" = x && am_cv_exeext=no
fi
EXEEXT=""
test x"${am_cv_exeext}" != xno && EXEEXT=${am_cv_exeext}
AC_MSG_RESULT(${am_cv_exeext})
AC_SUBST(EXEEXT)])
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