diff options
Diffstat (limited to 'config/acx.m4')
| -rw-r--r-- | config/acx.m4 | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/config/acx.m4 b/config/acx.m4 index c8a32c9..d186a4c 100644 --- a/config/acx.m4 +++ b/config/acx.m4 @@ -595,3 +595,26 @@ AC_DEFUN([ACX_BUGURL],[ AC_SUBST(REPORT_BUGS_TO) AC_SUBST(REPORT_BUGS_TEXI) ]) + +dnl #### +dnl # ACX_CHECK_CYGWIN_CAT_WORKS +dnl # On Cygwin hosts, check that the cat command ignores +dnl # carriage returns as otherwise builds will not work. +dnl # See binutils PR 4334 for more details. +AC_DEFUN([ACX_CHECK_CYGWIN_CAT_WORKS],[ +AC_MSG_CHECKING([to see if cat works as expected]) +echo a >cygwin-cat-check +if test `cat cygwin-cat-check` == a ; then + rm cygwin-cat-check + AC_MSG_RESULT(yes) +else + rm cygwin-cat-check + AC_MSG_RESULT(no) + AC_MSG_ERROR([The cat command does not ignore carriage return characters. + Please either mount the build directory in binary mode or run the following + commands before running any configure script: +set -o igncr +export SHELLOPTS + ]) +fi +]) |