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Simplify autoconfiguration for Windows

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Checking Windows libraries with autoconf is cumbersome, because
linking often fails unless you include the header, and AC_SEARCH_LIBS
doesn't permit that.

Just detect the Windows API instead, with new MY_WINDOWS_API.
This commit is contained in:
Markus Armbruster 2009-04-12 19:00:55 +02:00
parent c3d2786f1a
commit c02468fd69
3 changed files with 34 additions and 30 deletions
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16
configure.ac
View file

@ -63,15 +63,14 @@ else revctrl=
fi
AC_SUBST(revctrl,$revctrl)
# Not a program, but need to check this early
MY_WINDOWS_API
### Checks for libraries
ACX_PTHREAD
LIBS="$LIBS_SOCKETS $LIBS"
LIB_SOCKET_NSL
# TODO merge this into LIB_SOCKET_NSL?
case "$host_os" in
*mingw32)
LIBS="-lws2_32 $LIBS" ;;
esac
# TODO turn this into a macro?
save_LIBS=$LIBS
@ -123,10 +122,9 @@ if test -z "$with_pthread" || test "$with_pthread" = no; then
if test "$ac_cv_func_makecontext" = yes; then
empthread=LWP
fi
case "$host_os" in
*mingw32)
empthread=Windows ;;
esac
if test $Windows_API = yes; then
empthread=Windows
fi
fi
if test -z "$empthread"; then
AC_MSG_ERROR([No usable thread package found])

18
m4/my_windows_api.m4 Normal file
View file

@ -0,0 +1,18 @@
AC_DEFUN([MY_WINDOWS_API],
[
AC_MSG_CHECKING([whether compiling for Windows API])
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([[#ifdef _WIN32
#Here's a nickel, kid
#endif]])],
[Windows_API=no],
[Windows_API=yes])
AC_MSG_RESULT([$Windows_API])
if test $Windows_API = yes; then
AC_DEFINE([WINDOWS], 1, [Define if compiling for Windows API])
LIBS_SOCKETS="-lws2_32"
else
LIBS_SOCKETS=
fi
AC_SUBST([LIBS_SOCKETS])
])

30
src/client/configure.ac
View file

@ -47,36 +47,24 @@ AC_CONFIG_HEADERS([config.h])
AC_PROG_CC
AC_PROG_INSTALL
# Not a program, but need to check this early
MY_WINDOWS_API
### Checks for libraries.
AC_SEARCH_LIBS([setupterm], [termlib termcap curses ncurses])
LIBS="$LIBS_SOCKETS $LIBS"
LIB_SOCKET_NSL
# TODO merge this into LIB_SOCKET_NSL?
if test "$ac_cv_search_gethostbyname" = no; then
dnl Can't search ws2_32 for gethostbyname using AC_SEARCH_LIBS, because
dnl it requires #include <winsock2.h> to work.
AC_MSG_CHECKING([for gethostbyname in -lws2_32])
save_LIBS=$LIBS
LIBS="-lws2_32 $LIBS"
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <winsock2.h>]],
[[gethostbyname ("");]])],
[ws2_res=yes], [LIBS=save_LIBS ws2_res=no])
AC_MSG_RESULT([$ws2_res])
fi
AC_SEARCH_LIBS([setupterm], [termlib termcap curses ncurses])
### Checks for header files.
### Checks for typedefs, structures, and compiler characteristics.
AC_MSG_CHECKING([for Windows])
AC_COMPILE_IFELSE(
[AC_LANG_SOURCE([[#ifdef _WIN32
#Here's a nickel, kid
#endif]])],
[Windows_res=no],
[Windows_res=yes CFLAGS="$CFLAGS -mthreads"])
AC_MSG_RESULT([$Windows_res])
if test "$Windows_API" = yes; then
CFLAGS="$CFLAGS -mthreads"
fi
### Checks for library functions.