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check for shared library switch "-shared" with mingw and friends
From: |
Elizabeth Barham |
Subject: |
check for shared library switch "-shared" with mingw and friends |
Date: |
02 Oct 2002 09:40:37 -0500 |
Hi,
This adds the check for the "-shared" flag when making a DLL/Shared
Library on a windows hosts.
Thank you,
Elizabeth
2002-09-29 Elizabeth Barham <address@hidden>
* libtool.m4 (AC_LIBTOOL_SETUP): GCC now checks -shared to
create a dll for Windows targets.
Index: libtool.m4
===================================================================
RCS file: /cvsroot/libtool/libtool/libtool.m4,v
retrieving revision 1.264
diff -u -3 -p -r1.264 libtool.m4
--- libtool.m4 10 Sep 2002 13:50:06 -0000 1.264
+++ libtool.m4 29 Sep 2002 02:57:35 -0000
@@ -507,11 +507,14 @@ AC_PROVIDE_IFELSE([AC_LIBTOOL_WIN32_DLL]
case $host/$CC in
*-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)
# old mingw systems require "-dll" to link a DLL, while more recent ones
- # require "-mdll"
+ # require "-mdll" (and still newer ones would rather have "-shared")
SAVE_CFLAGS="$CFLAGS"
- CFLAGS="$CFLAGS -mdll"
+ CFLAGS="$CFLAGS -shared"
AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,
- [AC_TRY_LINK([], [],
[lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])
+ [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-shared],
+ [
+ CFLAGS="$SAVE_CFLAGS -mdll"
+ AC_TRY_LINK([], [],
[lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])])
CFLAGS="$SAVE_CFLAGS" ;;
*-*-cygwin* | *-*-pw32*)
# cygwin systems need to pass --dll to the linker, and not link
- check for shared library switch "-shared" with mingw and friends,
Elizabeth Barham <=