tAuto-detect whether to use -fnative-struct or -mms-bitfields compiler flags for building on Cygwin (Win32) systems. - vaccinewars - be a doctor and try to vaccinate the world
 (HTM) git clone git://src.adamsgaard.dk/vaccinewars
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       ---
 (DIR) commit 6da47caea44cdfb79a74cb20f7e8ea1ab59116e8
 (DIR) parent 43f36bd8dac0823fc2d0a26ae7062e91de60a0a8
 (HTM) Author: Ben Webb <ben@salilab.org>
       Date:   Fri,  6 Jun 2003 19:08:48 +0000
       
       Auto-detect whether to use -fnative-struct or -mms-bitfields compiler flags
       for building on Cygwin (Win32) systems.
       
       
       Diffstat:
         M configure.in                        |      12 +++++++++++-
       
       1 file changed, 11 insertions(+), 1 deletion(-)
       ---
 (DIR) diff --git a/configure.in b/configure.in
       t@@ -72,11 +72,21 @@ if test "$CYGWIN" = "yes" ; then
           AC_MSG_RESULT([Configuring for native Win32 binary under Cygwin])
           AC_DEFINE(CYGWIN, 1, [Define if building under the Cygwin environment])
        
       +   dnl This flag allows linking with MSVC-generated DLLs. -fnative-struct was
       +   dnl used by gcc 2, and -mms-bitfields by gcc 3, so it is tested for here.
       +   bkp_CFLAGS="$CFLAGS"
       +   AC_MSG_CHECKING(for compiler MSVC compatibility flag)
       +   CFLAGS="$CFLAGS -mms-bitfields"
       +   AC_COMPILE_IFELSE([ AC_LANG_PROGRAM() ], [ mscompat="-mms-bitfields" ],
       +                     [ mscompat="-fnative-struct" ])
       +   AC_MSG_RESULT($mscompat)
       +   CFLAGS="$bkp_CFLAGS"
       +
           dnl Libraries and flags
           dnl N.B. -mno-cygwin is included in CPPFLAGS so the right headers
           dnl are detected (in /usr/include/mingw/ rather than /usr/include)
           dnl later on - e.g. sys/param.h isn't in mingw.
       -   CFLAGS="$CFLAGS -mwindows -fnative-struct"
       +   CFLAGS="$CFLAGS -mwindows $mscompat"
           CPPFLAGS="$CPPFLAGS -mno-cygwin"
           LIBS="$LIBS -lwsock32 -lcomctl32 -lmpr"
           LDFLAGS="$LDFLAGS -mno-cygwin"