diff options
Diffstat (limited to 'unix/configure.in')
| -rw-r--r-- | unix/configure.in | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/unix/configure.in b/unix/configure.in index 087bb05..19db579 100644 --- a/unix/configure.in +++ b/unix/configure.in @@ -259,12 +259,17 @@ if test "${TCL_THREADS}" = 1; then fi #--------------------------------------------------------------------------- -# Determine which interface to use to talk to the serial port. -# Note that #include lines must begin in leftmost column for -# some compilers to recognize them as preprocessor directives. +# Check for serial port interface. +# +# termios.h is present on all POSIX systems. +# sys/ioctl.h is almost always present, though what it contains +# is system-specific. +# sys/modem.h is needed on HP-UX. #--------------------------------------------------------------------------- -SC_SERIAL_PORT +AC_CHECK_HEADERS(termios.h) +AC_CHECK_HEADERS(sys/ioctl.h) +AC_CHECK_HEADERS(sys/modem.h) #-------------------------------------------------------------------- # Include sys/select.h if it exists and if it supplies things |