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Message-ID: <04e301c0adfd$9b091a10$0200a8c0@lifelesswks>
From: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
To: "Akim Demaille" <akim AT epita DOT fr>
Cc: <cygwin-apps AT sources DOT redhat DOT com>, <autoconf AT gnu DOT org>
References: <3AB0C6A2 DOT 8AFE126C AT yahoo DOT com><023d01c0ad57$68af41d0$0200a8c0 AT lifelesswks><026c01c0ad5b$4a2a76e0$0200a8c0 AT lifelesswks><mv4zoen1456 DOT fsf AT nostromo DOT lrde DOT epita DOT fr><029701c0ad60$66becd60$0200a8c0 AT lifelesswks><mv4n1an12rz DOT fsf AT nostromo DOT lrde DOT epita DOT fr><02b901c0ad61$e69fd000$0200a8c0 AT lifelesswks><mv4itlb11vc DOT fsf AT nostromo DOT lrde DOT epita DOT fr><002401c0ad9b$e3526d60$0200a8c0 AT lifelesswks><3AB14033 DOT 1FFE5CE0 AT yahoo DOT com><027401c0ada3$bb7845f0$0200a8c0 AT lifelesswks><mv4elvyysdk DOT fsf AT nostromo DOT lrde DOT epita DOT fr><04b201c0adfa$6db4ab40$0200a8c0 AT lifelesswks> <mv4zoemxd9z DOT fsf AT nostromo DOT lrde DOT epita DOT fr>
Subject: V4a win32 macro
Date: Fri, 16 Mar 2001 20:43:32 +1100
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This has the AC_REQUIRE autoconf problem fixed (thanks Akim). However if
the user doesn't put AC_PROG_CC in anyway, the output looks like:

configure: creating cache /dev/null
checking for a BSD compatible install... /bin/install -c
checking whether build environment is sane... yes
checking for mawk... no
checking for gawk... gawk
checking whether make sets ${MAKE}... yes
checking how to run the C preprocessor... /lib/cpp
configure: error: C preprocessor "/lib/cpp" fails sanity check

So I don't know how useful the AC_REQUIRE actually ends up being !

Rob

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dnl COMPILER WIN32 support =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A=
# figure out how to run CC with access to the win32 api if present=0A=
# configure that as the CC program, =0A=
# WIN32 may be present with WINE, under cygwin, or under mingw,=0A=
# or cross compilers targeting those same three targets.=0A=
# as it happens, I can only test cygwin, so extra input here will be =
appreciated=0A=
# send bug reports to Robert Collins <rbtcollins AT hotmail DOT com>=0A=
#=0A=
# logic: is CC already configured? if not, call AC_PROG_CC.=0A=
# if so - try it. If that doesn't work ,try -mwin32. If that doesn't =
work, fail=0A=
#=0A=
# 2001-03-15 - Changed from yes/no to true/false -suggested by Lars J =
Aas<larsa AT sim DOT no>=0A=
# 	* Change true to : - suggest by Alexandre Oliva =
<oliva AT lsd DOT ic DOT unicamp DOT br>=0A=
#	* changed layout on the basis of autoconf mailing list:=0A=
#		there are now two interfaces, a language specific one which sets=0A=
#		or clears WIN32 && WIN32FLAGS as appropriate=0A=
#	* m4 Syntax fixup: Akim Demaille <akim AT epita DOT fr>=0A=
#=0A=
# All faults& bugs are mine - Robert=0A=
=0A=
AC_DEFUN([AC_PROG_CC_WIN32], [=0A=
AC_REQUIRE([AC_PROG_CC])dnl=0A=
AC_MSG_CHECKING([how to access the Win32 API])=0A=
WIN32FLAGS=3D=0A=
AC_TRY_COMPILE(,[=0A=
#ifndef WIN32=0A=
# ifndef _WIN32=0A=
#  error WIN32 or _WIN32 not defined=0A=
# endif=0A=
#endif], [=0A=
dnl found windows.h with the current config.=0A=
AC_MSG_RESULT([present by default])=0A=
], [=0A=
dnl try -mwin32=0A=
ac_compile_save=3D"$ac_compile"=0A=
dnl we change CC so config.log looks correct=0A=
save_CC=3D"$CC"=0A=
ac_compile=3D"$ac_compile -mwin32"=0A=
CC=3D"$CC -mwin32"=0A=
AC_TRY_COMPILE(,[=0A=
#ifndef WIN32=0A=
# ifndef _WIN32=0A=
#  error WIN32 or _WIN32 not defined=0A=
# endif=0A=
#endif], [=0A=
dnl found windows.h using -mwin32=0A=
AC_MSG_RESULT([found via -mwin32])=0A=
ac_compile=3D"$ac_compile_save"=0A=
CC=3D"$save_CC"=0A=
WIN32FLAGS=3D"-mwin32"=0A=
], [=0A=
ac_compile=3D"$ac_compile_save"=0A=
CC=3D"$save_CC"=0A=
AC_MSG_RESULT([not found])=0A=
])=0A=
])=0A=
=0A=
])=0A=
=0A=
=0A=
# figure out how to run CXX with access to the win32 api if present=0A=
# configure that as the CXX program,=0A=
# WIN32 may be present with WINE, under cygwin, or under mingw,=0A=
# or cross compilers targeting those same three targets.=0A=
# as it happens, I can only test cygwin, so extra input here will be =
appreciated=0A=
# send bug reports to Robert Collins <rbtcollins AT hotmail DOT com>=0A=
=0A=
AC_DEFUN([AC_PROG_CXX_WIN32], [=0A=
AC_REQUIRE([AC_PROG_CXX])dnl=0A=
AC_MSG_CHECKING([how to access the Win32 API])=0A=
WIN32FLAGS=3D=0A=
AC_TRY_COMPILE(,[=0A=
#ifndef WIN32=0A=
# ifndef _WIN32=0A=
#  error WIN32 or _WIN32 not defined=0A=
# endif=0A=
#endif], [=0A=
dnl found windows.h with the current config.=0A=
AC_MSG_RESULT([present by default])=0A=
], [=0A=
dnl try -mwin32=0A=
ac_compile_save=3D"$ac_compile"=0A=
dnl we change CC so config.log looks correct=0A=
save_CXX=3D"$CXX"=0A=
ac_compile=3D"$ac_compile -mwin32"=0A=
CXX=3D"$CXX -mwin32"=0A=
AC_TRY_COMPILE(,[=0A=
#ifndef WIN32=0A=
# ifndef _WIN32=0A=
#  error WIN32 or _WIN32 not defined=0A=
# endif=0A=
#endif], [=0A=
dnl found windows.h using -mwin32=0A=
AC_MSG_RESULT([found via -mwin32])=0A=
ac_compile=3D"$ac_compile_save"=0A=
CXX=3D"$save_CXX"=0A=
WIN32FLAGS=3D"-mwin32"=0A=
], [=0A=
ac_compile=3D"$ac_compile_save"=0A=
CXX=3D"$save_CXX"=0A=
AC_MSG_RESULT([not found])=0A=
])=0A=
])=0A=
=0A=
])=0A=
=0A=
=0A=
# high level interface for finding out compiler support for win32.=0A=
AC_DEFUN([AC_API_WIN32], [=0A=
=0A=
AC_LANG_CASE(=0A=
	    [C], [AC_PROG_CC_WIN32=0A=
	CFLAGS=3D"$WIN32FLAGS $CFLAGS"=0A=
	CPPFLAGS=3D"$WIN32FLAGS $CPPFLAGS"],=0A=
            [C++], [AC_PROG_CXX_WIN32=0A=
	CXXFLAGS=3D"$WIN32FLAGS $CXXFLAGS"=0A=
	CPPFLAGS=3D"$WIN32FLAGS $CPPFLAGS"],=0A=
             [AC_FATAL([No macro support for WIN32 with ] _AC_LANG) ])=0A=
])=0A=
=0A=
dnl end compiler WIN32 support =
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=0A=

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